一名优秀的教师在教学时都会提前最好准备，作为教师就要好好准备好一份教案课件。教案可以让学生们能够在上课时充分理解所教内容，帮助教师缓解教学的压力，提高教学质量。所以你在写教案时要注意些什么呢？考虑到您的需要，小编特地编辑了“Unit3Computer（VocabularyandUsefulExpressions）教案”，欢迎阅读，希望您能够喜欢并分享！jAB88.COm

Unit3Computer
VocabularyandUsefulExpressions
common
n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.
simple
n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.
technology
n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems
universal
n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.
mathematical
adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.
artificial
adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.
disagree
v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.
disadvantage
n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.
choice
n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.
adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.
material
n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.
adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary
mate
n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.
create
v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.
move
n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.
brain
n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.
spoil
n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.
mop
n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.
wander
v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

精选阅读

Unit3Computer教学设计

一名优秀的教师在每次教学前有自己的事先计划，作为教师就要在上课前做好适合自己的教案。教案可以让学生更好的吸收课堂上所讲的知识点，帮助教师提高自己的教学质量。写好一份优质的教案要怎么做呢？以下是小编为大家收集的“Unit3Computer教学设计”希望对您的工作和生活有所帮助。

Unit3Computer教学设计
Period1:Warmingupandreading
TeachingAims
Totalkaboutcomputer
Toreadaboutcomputer
Procedures
I.Warmingup
Warmingupbytalkingaboutcomputer
Lookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?
Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.
计算机室
Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.
曙光3000巨型计算机
Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.
Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.
Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.
Computerjargon计算机行话
Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).
Examplesofjargon:
Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.
Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble
CPU–CentralProcessingUnit,Anothernameforprocessor
Data-Informationstoredonacomputer
Disk-Aplacetostoredata.
Email-Electronicmail.
GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.
Load-Getdatafromadisk
Nibble-HalfaByte
Save-Putdataonadisk
RAM–random-accessmemory(随机存取存储器),themorethebetter.
USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）
WWW-WorldWideWeb,partoftheInternet
II.Pre-reading
1.QuestioningandansweringWhatdoyouknowaboutcomputer?
●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.
●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.
●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.
●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.
●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.
●amachineforperformingcalculationsautomatically
calculator:anexpertatcalculation(oratoperatingcalculatingmachines)
●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive
2.DiscussingandsharingHowhavecomputerschangedourlives?
Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.
Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.
III.Reading
1.ListeningandreadingtotherecordingofthetextWHOAMI?
Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.
2.Readingaloudandunderliningexpressions
Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.
CollocationsfromWHOAMI?
beginas…,acalculatingmachine,bebuiltas…,atthattime,atechnologicalrevolution,thestartofartificialintelligence,writeabook,bemadetowork,solveproblems,fromthenon,growanylarger,Astimewentby,gobackto…,bemadesmaller,memorybecamesolarge,standtherebyoneself,beconnectedby…,shareknowledgewithothersthrough…,beputinto…,providehumanswith…,dealwith…,trulyfilledwith…
3.Reading,identifyingandsettling
Attention,please!Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.
Chat（online）（在线）聊天
Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL(AmericanOn-Line)InstantMessenger(AIM),YahooMessenger,orMSNMessenger.
IV.Comprehending
1.Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.
In1642Thecomputerbeganasacalculatingmachine.
In1822TheanalyticalmachinewasmadebyCharlesBabbage.
In1936Thecomputergrewrapidlybothinsizeand
inbrainpower.
1940sThecomputerhadgrownaslargeasaroom.
In1960sThefirstfamilyofcomputerwasconnectedtoeachother.
In1970sComputerswereusedinofficesandhomes.
NowComputersconnectpeopleallovertheworld
Together.
2.Readthetextagainandcompletethechartbelow.
Paragraph1Paragraph2Paragraph3
TopicsentenceOvertimeIhave
beenchangedquite
alot.Thesechangesonly
becamepossible
asmymemory
improved.Sincethe1970s
manynewapplications
havebeenfoundforme.
SupportingdetailsCalculatingmachine
Analyticalmachine
Universalmachine
PC
laptoptubes
transistors
chips
network
worldwidewebcommunications
finance
trade
robots
mobilephones
spacerockets
providingalifeof
highquality

Period2:LearningaboutLanguage
TeachingAims:
TolearntouseThePresentPerfectPassiveVoice
Todiscoverusefulwordsandexpression
Todiscoverusefulstructures
Procedures
I.Warmingupbyreadingtothetape
Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.
II.Discoveringusefulwordsandexpressions
Inpairsdotheexercises1,2and3onpages20.Youmustfinishthemin10minutes.
III.Learningaboutgrammar
1.PassiveVoice—Overview
TenseorModelPassiveSentence
SimplePresentTheTOEFLexamisgiveneverysixmonths.
SimplepastTheTOEFLexamwasgivenlastmonth.
SimpleFutureTheTOEFLexamthisyearwillbegivenonOctober15.
PresentContinuousTheTOEFLexamisbeinggiveneveryyear.
PresentperfectTheTOEFLexamhasbeengiveneveryyearsince1950.
PastperfectTheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.
SimpleModalTheTOEFLexamshouldbegiventoeveryForeignstudent.
PastModalTheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.
2.ThePresentPerfectPassiveVoice
ThestructureofThePresentPerfectPassiveVoiceis:have/has＋been＋~ed
IV.Readingaloudanddiscovering
Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.
…asalaptop,Ihavebeenusedinofficesandhomessincethe1970s.
Sincethe1970smanynewapplicationshavebeenfoundforme.
V.Discoveringusefulstructure
Weshalldogrammarexercises1,2and3onpage21.
VI.Closingdownbydoingaquiz
Correctthemistakesinthesepassivevoicesentences
Example:Thehousewasbuildin1880.(correct=Thehousewasbuiltin1880.)
1.3000employeeswerelayingoff.
2.Astorywillmadeup.
3.Anideawasputtedforwardfordiscussion.
4.Hasthebookbeengivebacktoyouyet?
5.Mybankloanwillbepayedoffinfiveyearstime.
6.Nothingcanbeholdagainstme.
7.Ourallieswillbelendsupport.
8.Shehasneverheardof.
9.Shewasbeingknockeddownbyabus.
10.Shewaslettedoffwithafine.
11.Thecandlewasblowoutbythedraught.
12.Thecriminalwerelockedup.
13.Thefloodwaterwasbekeptbackbybarriers.
14.Theinconveniencewillmadeupforbythismoney.
15.Thekeysmusthavebeenbeingleftbehind.
16.Theoldcinemaisbeingpulldown.
17.Theprotestersbeingheldbackbythepolice.
18.Theroadwasblockingoff.
19.Thirtymorepeoplewerelaidofflastweek.
20.Yourjacketcanbehangedupoverthere.
Period3:UsingLanguage
TeachingAims:
TodiscussaboutIT
TowriteareportaboutIT
Toreadaboutandroidsorrobots
Procedures
I.WarmingupbytalkingaboutIT
WhatisInformationtechnology?
Informationtechnology(IT)orinformationandcommunicationtechnology(ICT)isthetechnologyrequiredforinformationprocessing.Inparticulartheuseofelectroniccomputersandcomputersoftwaretoconvert,store,protect,process,transmit,andretrieveinformationfromanywhere,anytime.
II.Listeningandwriting
Turntopage22.DiscussinpairswhatITconsistsofandthenmakealist.ListentothetextaboutdifferentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkind.
III.Reading,speakingandwriting
Itissaidthatcomputerscouldbeputintoandroidsorrobots.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofthefunyoucouldhave!
ExpressionsfromAndy—TheAndroid
partofafootballteam,onceayear,gettogether,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thinklikeahuman,shoutto…,incomputerlanguage,haveagoodshotforagoal,getsecondplace,winthefirstplace,haveanewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahumanteam,inaway,program…with…,makeup…,afterall,withthehelpof…
Speakingandwriting
Supposeyouandyourpartneraregoingtohelpchoosecomputersforyourschool.Nowtalkaboutthespecialthingseachofthecomputercandoandwriteareporttoyourheadmaster.
IV.Writingaletter
Supposeyouareanandroid.Whatwouldsaytoaspoiledchildwhowouldnotdohishomework?Writealettertotheboy.
Android
Anandroidisanartificiallycreatedbeingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean‘ofthespecies,kind,alike’(fromeidos‘species’).
Theworddroid,arobotintheStarWarsuniverse,isderivedfromthismeaning.Somepeoplemaintainthat,etymologically,thewordandroidmeansresemblingamalehumanandthatarobotresemblingawomanshouldlogicallybecalledagynoidforsexistlanguagetobeavoided;however,thiswordisnotcommonlyused.
Unlikethetermsrobot(amechanicalbeing)andcyborg(abeingthatispartlyorganicandpartlymechanical),thewordandroidhasbeenusedinliteratureandothermediatodenoteseveraldifferentkindsofman-made,autonomouscreations:
arobotthatcloselyresemblesahuman
acyborgthatcloselyresemblesahuman
anartificiallycreated,yetprimarilyorganic,beingthatcloselyresemblesahuman
Althoughessentiallyhumanmorphologyisnottheidealformforworkingrobots,thefascinationindevelopingrobotsthatcanmimicitcanbefoundhistoricallyintheassimilationoftwoconcepts:simulacra(devicesthatexhibitlikeness)andautomata(devicesthathaveindependence).
ThetermandroidwasfirstusedbytheFrenchauthorMathiasVilliersdelIsle-Adam(1838-1889)inhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.Assaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoninthemindofthoseresponsibleforthesemechanicaldolls.”
附：备课参考资料
ComputerBasics
Toaccomplishataskusingacomputer,youneedacombinationofhardware,software,andinput.
Hardwareconsistsofdevices,likethecomputeritself,themonitor,keyboard,printer,mouseandspeakers.Insideyourcomputertherearemorebitsofhardware,includingthemotherboard,whereyouwouldfindthemainprocessingchipsthatmakeupthecentralprocessingunit(CPU).Thehardwareprocessesthecommandsitreceivesfromthesoftware,andperformstasksorcalculations.
Softwareisthenamegiventotheprogramsthatyouinstallonthecomputertoperformcertaintypesofactivities.Thereisoperatingsystemsoftware,suchastheAppleOSforaMacintosh,orWindows95orWindows98foraPC.Thereisalsoapplicationsoftware,likethegamesweplayorthetoolsweusetocomposelettersordomathproblems.
Youprovidetheinput.Whenyoutypeacommandorclickonanicon,youaretellingthecomputerwhattodo.Thatiscalledinput.
HowTheyWorkTogether
First,youprovideinputwhenyouturnonthecomputer.ThenthesystemsoftwaretellstheCPUtostartupcertainprogramsandtoturnonsomehardwaredevicessothattheyarereadyformoreinputfromyou.Thiswholeprocessiscalledbootingup.
Thenextstephappenswhenyouchooseaprogramyouwanttouse.Youclickontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.Oncetheprogramhasstarted,itisreadyforyourinstructions.Youeitherenteranaddress(calledaURL,whichstandsforUniformResourceLocator),orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhatyouwantittodo.Thebrowsersoftwarethengoesouttofindthataddress,startingupotherhardwaredevices,suchasamodem,whenitneedsthem.Ifitisabletofindthecorrectaddress,thebrowserwillthentellyourcomputertosendtheinformationfromthewebpageoverthephonewireorcabletoyourcomputer.Eventually,youseethewebsiteyouwerelookingfor.
Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerwhattodo.Thebrowsersoftwaredetermineswhetheryouhaveaprinterattachedtoyourcomputer,andwhetheritisturnedon.Itmayremindyoutoturnontheprinter,thensendtheinformationaboutthewebpagefromyourcomputeroverthecabletotheprinter,whereitisprintedout.
II.Television
Oldportabletelevision
Atelevision(alsoTVortelly)isadevice(tool)withascreenthatreceivesbroadcastsignalsandturnsthemintopicturesandsound.Theword“television”comesfromthewordstele(Greekforfaraway)andvision(seeing).
UsuallyaTVlookslikeabox.OlderTVshadlargewoodenframesandsatonthefloorlikefurniture.NewerTVsbecamesmallersotheycouldfitonshelves,orevenportablesoyoucouldtakeitwithyouwhereveryouwent.ThesmallestTVscanfitinyourhand.ThelargestTVscantakeupawholewallinyourhouse,andmaysitonthefloor,orbejustalargeflatscreenthatcanbemountedonthewall.ManyTVsarenowmadeinwidescreenshapelikemovietheatrescreens,ratherthanold,moresquareTVs.
Atelevisionhasanantenna(oraerial),orithasacable.Thisgetsthesignalfromtheair,orcableprovider.TVscanalsoshowmoviesfromDVDplayersorVCRs.TVscanbeconnectedtocomputersandgameconsoles,usuallythroughakindofsocketcalled“SCART”.
III.WeborWorldWideWeb
TheWorldWideWebisthepartoftheInternetthatcontainswebsitesandwebpages.
ItisnotusedtodescribeWebPagesthatareusedofflinewherenetservicesarenotavailable,ornocomputernetworkexists-suchasWikipediaonCD.Inthiscasenorealphysicalsiteexistsotherthantheplacewherethecomputeris.BlogandWikicapabilitieswillalsonotbeavailablebecausetheserequireacommunicationwithothercomputers.
IV.Radio
Radioisacommunicationsinvention.Thoughoriginallyusedtocommunicatebetweentwopeople,itisnowusedtolistentomusic,news,andpeopletalking.RadioshowswerethepredecessortoTVprograms.
V.DVD
DVDmostcommonlystandsfor“digitalversatiledisk”.ItcanplayvideothatisofahigherqualitythanaVHStape.
VI.TwokindsofDVD
Theycanalsohold4.7GBofinformationasopposedtothe700MBthataCDcanhold.AplusofusingaDVDforavideoistheabilitytohaveinteractivemenusandbonusfeaturessuchasdeletedscenesandcommentaries.
VII.Email
Email(electronicmail)isamessage,usuallytext,sentfromoneInternetusertoanother.Emailisquickerthansnailmail(mail)whensendingoverlongdistancesandisusuallyfree.Tosendorreceiveanemail,acomputerwithamodemandtelephonelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis:[emailprotected](comorfrororgorukorother).
Somecompaniesletyousendandreceiveemailforfreefromawebsite.Gmail,HotmailandYahoo!dothis.
VIII.Human
Herearetwohumans.
Amanisontheleftandawomanisontheright.Ahumanorhumanbeingisaperson,likeyou.Amalehumanisaman,afemalehumanisawoman.Ifyouthinkaboutallhumansinthewholeworld,theyarecalledhumanity.Inthepast,peoplehavealsousedmanandmankindtomeanallhumans.
HumansarecalledHomosapiensbyscientists.Humansareananimalspeciesthatbelongstothegroupcalledprimates.Monkeysareprimatestoo,buttheprimatesmostlikepeoplearegorillasandchimpanzees.Mostscientiststhinkthatchimpanzeesandhumanscamefromacommonancestorbywhatiscalledevolution.Otheranimalsevenmorelikehumansthanchimpanzeesoncelivedtoo,buttheyarenowextinct.
Humanrightsarethosethingsthateveryonedeservesandthewaytheyshouldbetreatedbyotherpeople.

人教版高中英语必修2教案Unit3Computer

教案课件是每个老师工作中上课需要准备的东西，准备教案课件的时刻到来了。只有写好教案课件计划，才能规范的完成工作！你们会写适合教案课件的范文吗？下面是小编为大家整理的“人教版高中英语必修2教案Unit3Computer”，欢迎阅读，希望您能阅读并收藏。

Unit3ComputerPartOne:TeachingDesign(第一部分：教学设计)

Period1:Asamplelessonplanforreading

(WHOAMI?)

Aims

Totalkaboutcomputer

Toreadaboutcomputer

Procedures

I.WarmingupWarmingupbytalkingaboutcomputer

Lookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?

Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.

计算机室

Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.

曙光3000巨型计算机

Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.

Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.

Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.

Computerjargon计算机行话

Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).

Examplesofjargon:

Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.

Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble

CPU–CentralProcessingUnit,Anothernameforprocessor

Data-Informationstoredonacomputer

Disk-Aplacetostoredata.

Email-Electronicmail.

GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.

Load-Getdatafromadisk

Nibble-HalfaByte

Save-Putdataonadisk

RAM–random-accessmemory(随机存取存储器),themorethebetter.

USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW-WorldWideWeb,partoftheInternet

II.Pre-reading

1.QuestioningandansweringWhatdoyouknowaboutcomputer?

●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.

●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.

●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.

●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.●amachineforperformingcalculationsautomatically

calculator:anexpertatcalculation(oratoperatingcalculatingmachines)

●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive2.DiscussingandsharingHowhavecomputerschangedourlives?

Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.

Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.

III.Reading

1.ListeningandreadingtotherecordingofthetextWHOAMI?

Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.

2.Readingaloudandunderliningexpressions

Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.CollocationsfromWHOAMI?

beginas…,acalculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution,writeabook,make…work,solveproblems,becomehuge,hadartificialintelligence,gobackto…,thesizeof…,goby,changesize,becomesmallandthin,getquick,standtherebyoneself,beconnectedby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanrace

3.Reading,identifyingandsettling

Attention,please!Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.

Chat（online）（在线）聊天

Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL(AmericanOn-Line)InstantMessenger(AIM),YahooMessenger,orMSNMessenger.

4.Readingandtransferring

Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.In1642In1822In1936In1960sIn1970sIV.Closingdownbydoingcomprehendingexercises

Turntopage18andinpairsdothecomprehendingexercisesNo.1and2.

Period2:AsamplelessonplanforLearningaboutLanguage

(ThePresentPerfectPassiveVoice)

Aims

TolearntouseThePresentPerfectPassiveVoice

Todiscoverusefulwordsandexpression

Todiscoverusefulstructures

ProceduresI.Warmingupbyreadingtothetape

Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.

II.Discoveringusefulwordsandexpressions

Inpairsdotheexercises1,2and3onpages19and20.Youmustfinishthemin10minutes.

III.Learningaboutgrammar

1.PassiveVoice—Overview

TenseorModel

PassiveSentence

SimplePresent

TheTOEFLexamisgiveneverysixmonths.

Simplepast

TheTOEFLexamwasgivenlastmonth.

SimpleFuture

TheTOEFLexamthisyearwillbegivenonOctober15.

PresentContinuous

TheTOEFLexamisbeinggiveneveryyear.

Presentperfect

TheTOEFLexamhasbeengiveneveryyearsince1950.

Pastperfect

TheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.

SimpleModal

TheTOEFLexamshouldbegiventoeveryForeignstudent.

PastModal

TheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.

2.ThePresentPerfectPassiveVoice

ThestructureofThePresentPerfectPassiveVoiceis:have/has＋been＋~ed

IV.Readingaloudanddiscovering

Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.

Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.

Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationwitheachotheraroundtheworldbytheInternet.

V.Discoveringusefulstructure

Weshalldogrammarexercises1,2and3onpage20.VI.Closingdownbydoingaquiz

Correctthemistakesinthesepassivevoicesentences

Example:Thehousewasbuildin1880.(correct=Thehousewasbuiltin1880.)

1.3000employeeswerelayingoff.

2.Astorywillmadeup.

3.Anideawasputtedforwardfordiscussion.

4.Hasthebookbeengivebacktoyouyet?

5.Mybankloanwillbepayedoffinfiveyearstime.

6.Nothingcanbeholdagainstme.

7.Ourallieswillbelendsupport.

8.Shehasneverheardof.

9.Shewasbeingknockeddownbyabus.

10.Shewaslettedoffwithafine.

11.Thecandlewasblowoutbythedraught.

12.Thecriminalwerelockedup.

13.Thefloodwaterwasbekeptbackbybarriers.

14.Theinconveniencewillmadeupforbythismoney.

15.Thekeysmusthavebeenbeingleftbehind.

16.Theoldcinemaisbeingpulldown.

17.Theprotestersbeingheldbackbythepolice.

18.Theroadwasblockingoff.

19.Thirtymorepeoplewerelaidofflastweek.

20.Yourjacketcanbehangedupoverthere.

Period3:AsamplelessonplanforUsingLanguage

(ANDY—THEANDROID)

Aims

TodiscussaboutIT

TowriteareportaboutIT

ToreadaboutandroidsorrobotsProcedures

I.WarmingupbytalkingaboutIT

WhatisInformationtechnology?Informationtechnology(IT)orinformationandcommunicationtechnology(ICT)isthetechnologyrequiredforinformationprocessing.Inparticulartheuseofelectroniccomputersandcomputersoftwaretoconvert,store,protect,process,transmit,andretrieveinformationfromanywhere,anytime.

II.Listeningandwriting

Turntopage21.LookatthepicturesandlistentoaconversationaboutdifferentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkind.

III.Speakingandwriting

Supposeyouandyourpartneraregoingtohelpchoosecomputersforyourschool.Nowtalkaboutthespecialthingseachofthecomputercandoandwriteareporttoyourheadmaster.

IV.Reading,underliningandspeaking

Itissaidthatcomputerscouldbeputintoandroidsorrobots.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofthefunyoucouldhave!

ExpressionsfromAndy—TheAndroid

partofafootballteam,onceayear,gettogether,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thinklikeahuman,shoutto…,incomputerlanguage,haveagoodshotforagoal,getsecondplace,winthefirstplace,haveanewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahumanteam,inaway,program…with…,makeup…,afterall,withthehelpof…

V.Writingaletter

Supposeyouareanandroid.Whatwouldsaytoaspoiledchildwhowouldnotdohishomework?Writealettertotheboy.

Android

Anandroidisanartificiallycreatedbeingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean‘ofthespecies,kind,alike’(fromeidos‘species’).

Theworddroid,arobotintheStarWarsuniverse,isderivedfromthismeaning.Somepeoplemaintainthat,etymologically,thewordandroidmeansresemblingamalehumanandthatarobotresemblingawomanshouldlogicallybecalledagynoidforsexistlanguagetobeavoided;however,thiswordisnotcommonlyused.

Unlikethetermsrobot(amechanicalbeing)andcyborg(abeingthatispartlyorganicandpartlymechanical),thewordandroidhasbeenusedinliteratureandothermediatodenoteseveraldifferentkindsofman-made,autonomouscreations:

arobotthatcloselyresemblesahuman

acyborgthatcloselyresemblesahuman

anartificiallycreated,yetprimarilyorganic,beingthatcloselyresemblesahuman

Althoughessentiallyhumanmorphologyisnottheidealformforworkingrobots,thefascinationindevelopingrobotsthatcanmimicitcanbefoundhistoricallyintheassimilationoftwoconcepts:simulacra(devicesthatexhibitlikeness)andautomata(devicesthathaveindependence).

ThetermandroidwasfirstusedbytheFrenchauthorMathiasVilliersdelIsle-Adam(1838-1889)inhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.Assaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoninthemindofthoseresponsibleforthesemechanicaldolls.”找教案http://

PartTwTeachingResources(第二部分：教学资源)

Section1:AtextstructureanalysisofWHOAMI?

I.TypeofwritingandsummaryofWHOAMI?

Typeofwriting

Thisisapieceofnarrativewriting.

Mainideaofthepassage

Beginningasjustacalculatingmachinein1642inFrance,thecomputerhasbeenexperiencingimprovementagainandoveragainover300yearsormore,whichhasnotonlymadeitmorebeautifulandintelligentbutalsochangedman’slifeagreatdeal!

Topicsentenceof1stparagraph

Ibeganasacalculatingmachinein1642inFrance.

Topicsentenceof2ndparagraph

NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.

II.Achainofeventsshowingthedevelopmentofcomputeracalculatingmachinein1642inFrance→anAnalyticalMachinein1822→a“universalmachine.”in1936→thesizeofalargeroom→madesmallerandsmaller→gettingnewtransistorsin1960s→cleverandquicker→anetworkintheearly1960s→talkingtohumansusingBASICintheearly1960s→broughtintopeople’shomesin1970s→Internet

III.AretoldversionofthetextWHOAMI?

I,thecomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachinein1822,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.IwasnotverybigatfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.

Gettingnewtransistorsin1960sIbecamecleverandquicker.Iwasconnectedwithothercomputersandturnedouttopartofanetworkintheearly1960s.ThenIbegantalkingtohumansusingBASICintheearly1960s.In1970sIwasbroughtintopeople’shomes,andcametheInternet.

Section2:Backgroundinformationcomputers

I.HowDoComputersWork?

ComputerBasics

Toaccomplishataskusingacomputer,youneedacombinationofhardware,software,andinput.

Hardwareconsistsofdevices,likethecomputeritself,themonitor,keyboard,printer,mouseandspeakers.Insideyourcomputertherearemorebitsofhardware,includingthemotherboard,whereyouwouldfindthemainprocessingchipsthatmakeupthecentralprocessingunit(CPU).Thehardwareprocessesthecommandsitreceivesfromthesoftware,andperformstasksorcalculations.

Softwareisthenamegiventotheprogramsthatyouinstallonthecomputertoperformcertaintypesofactivities.Thereisoperatingsystemsoftware,suchastheAppleOSforaMacintosh,orWindows95orWindows98foraPC.Thereisalsoapplicationsoftware,likethegamesweplayorthetoolsweusetocomposelettersordomathproblems.

Youprovidetheinput.Whenyoutypeacommandorclickonanicon,youaretellingthecomputerwhattodo.Thatiscalledinput.

HowTheyWorkTogetherFirst,youprovideinputwhenyouturnonthecomputer.ThenthesystemsoftwaretellstheCPUtostartupcertainprogramsandtoturnonsomehardwaredevicessothattheyarereadyformoreinputfromyou.Thiswholeprocessiscalledbootingup.

Thenextstephappenswhenyouchooseaprogramyouwanttouse.Youclickontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.Oncetheprogramhasstarted,itisreadyforyourinstructions.Youeitherenteranaddress(calledaURL,whichstandsforUniformResourceLocator),orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhatyouwantittodo.Thebrowsersoftwarethengoesouttofindthataddress,startingupotherhardwaredevices,suchasamodem,whenitneedsthem.Ifitisabletofindthecorrectaddress,thebrowserwillthentellyourcomputertosendtheinformationfromthewebpageoverthephonewireorcabletoyourcomputer.Eventually,youseethewebsiteyouwerelookingfor.

Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerwhattodo.Thebrowsersoftwaredetermineswhetheryouhaveaprinterattachedtoyourcomputer,andwhetheritisturnedon.Itmayremindyoutoturnontheprinter,thensendtheinformationaboutthewebpagefromyourcomputeroverthecabletotheprinter,whereitisprintedout.II.Television

Oldportabletelevision

Atelevision(alsoTVortelly)isadevice(tool)withascreenthatreceivesbroadcastsignalsandturnsthemintopicturesandsound.Theword“television”comesfromthewordstele(Greekforfaraway)andvision(seeing).

UsuallyaTVlookslikeabox.OlderTVshadlargewoodenframesandsatonthefloorlikefurniture.NewerTVsbecamesmallersotheycouldfitonshelves,orevenportablesoyoucouldtakeitwithyouwhereveryouwent.ThesmallestTVscanfitinyourhand.ThelargestTVscantakeupawholewallinyourhouse,andmaysitonthefloor,orbejustalargeflatscreenthatcanbemountedonthewall.ManyTVsarenowmadeinwidescreenshapelikemovietheatrescreens,ratherthanold,moresquareTVs.

Atelevisionhasanantenna(oraerial),orithasacable.Thisgetsthesignalfromtheair,orcableprovider.TVscanalsoshowmoviesfromDVDplayersorVCRs.TVscanbeconnectedtocomputersandgameconsoles,usuallythroughakindofsocketcalled“SCART”.

III.WeborWorldWideWeb

TheWorldWideWebisthepartoftheInternetthatcontainswebsitesandwebpages.ItisnotusedtodescribeWebPagesthatareusedofflinewherenetservicesarenotavailable,ornocomputernetworkexists-suchasWikipediaonCD.Inthiscasenorealphysicalsiteexistsotherthantheplacewherethecomputeris.BlogandWikicapabilitieswillalsonotbeavailablebecausetheserequireacommunicationwithothercomputers.IV.Radio

Radioisacommunicationsinvention.Thoughoriginallyusedtocommunicatebetweentwopeople,itisnowusedtolistentomusic,news,andpeopletalking.RadioshowswerethepredecessortoTVprograms.V.DVD

DVDmostcommonlystandsfor“digitalversatiledisk”.ItcanplayvideothatisofahigherqualitythanaVHStape.VI.TwokindsofDVD

Theycanalsohold4.7GBofinformationasopposedtothe700MBthataCDcanhold.AplusofusingaDVDforavideoistheabilitytohaveinteractivemenusandbonusfeaturessuchasdeletedscenesandcommentaries.VII.Email

Email(electronicmail)isamessage,usuallytext,sentfromoneInternetusertoanother.Emailisquickerthansnailmail(mail)whensendingoverlongdistancesandisusuallyfree.Tosendorreceiveanemail,acomputerwithamodemandtelephonelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis:[emailprotected](comorfrororgorukorother).

Somecompaniesletyousendandreceiveemailforfreefromawebsite.Gmail,HotmailandYahoo!dothis.VIII.Human

Herearetwohumans.Amanisontheleftandawomanisontheright.Ahumanorhumanbeingisaperson,likeyou.Amalehumanisaman,afemalehumanisawoman.Ifyouthinkaboutallhumansinthewholeworld,theyarecalledhumanity.Inthepast,peoplehavealsousedmanandmankindtomeanallhumans.HumansarecalledHomosapiensbyscientists.Humansareananimalspeciesthatbelongstothegroupcalledprimates.Monkeysareprimatestoo,buttheprimatesmostlikepeoplearegorillasandchimpanzees.Mostscientiststhinkthatchimpanzeesandhumanscamefromacommonancestorbywhatiscalledevolution.Otheranimalsevenmorelikehumansthanchimpanzeesoncelivedtoo,buttheyarenowextinct.Humanrightsarethosethingsthateveryonedeservesandthewaytheyshouldbetreatedbyotherpeople.Section3:WordsandexpressionsfromUnit3Computers

common

n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.

simple

n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.

technology

n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems

universal

n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.

mathematical

adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.

artificial

adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.

disagree

v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.

disadvantage

n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.

choice

n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.

adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.

material

n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.

adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary

mate

n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.

create

v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.

move

n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.

brain

n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.

spoil

n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.

mop

n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.

wander

v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

人教英语新课标必修2全册精品教案(Unit3Computer)

一名合格的教师要充分考虑学习的趣味性，高中教师要准备好教案，这是高中教师需要精心准备的。教案可以让讲的知识能够轻松被学生吸收，帮助高中教师有计划有步骤有质量的完成教学任务。您知道高中教案应该要怎么下笔吗？小编经过搜集和处理，为您提供人教英语新课标必修2全册精品教案(Unit3Computer)，欢迎阅读，希望您能阅读并收藏。

Unit3Computer

PartOne:TeachingDesign(第一部分：教学设计)

Period1:Asamplelessonplanforreading

(WHOAMI?)

Aims

Totalkaboutcomputer

Toreadaboutcomputer

Procedures

I.Warmingup

Warmingupbytalkingaboutcomputer

Lookatthepicturesonpage17.Whatarethey?Whatdotheyhaveincommon?Yes,theyarecomputers.Thenwhatisacomputer?

Acomputerisamachinewhichstoresknowledgeinitsmemoryanddoescalculationsonthatknowledge.Thisknowledgeisstoredinsymbols;itiscalleddata.Acomputerusuallyhasamonitortoshowresults.However,somecomputerscanspeak;thesecomputerscanbeusedforvoicemail.

计算机室

Acomputerfrequentlyrequiresabootdevice.Thebootdevicecontainsthecomputer’soperatingsystemanddata.Computerprogramscanbeinstalledontoacomputer.SomepeoplethinkthatcomputersarelessusefuliftheydonothaveaccesstotheInternet.TheythinkthisbecausetheInternetallowsthecomputerstosendandreceivedataandemailacrosstheworld.

曙光3000巨型计算机

Acomputerisnowalmostalwaysanelectronicdevice.Itusuallycontainsmaterialswhicharetoxic;thesematerialswillbecometoxicwastewhendisposedof.Whenanewcomputerispurchasedinsomeplaces,lawsrequirethatthecostofitswastemanagementmustalsobepaidfor.Thisiscalledproductstewardship.

Insomecountriesoldcomputersarerecycled(melteddown)togetgoldandothermetals.Thisisdangerous,becausethisprocedurereleasesthetoxicwasteintothewaterandsoil.

Computersbecomeobsoletequickly.Veryoftentheyaregivenawayandnewonesreplacethemwithintwoorthreeyears.Thismakestheproblemworse.Computerrecyclingisthuscommon.Manyprojectstrytosendworkingcomputerstodevelopingnationssotheycanbere-usedandwillnotbecomewasteasquickly.

Computerjargon计算机行话

Computerjargonmeanswordstodowithcomputersandsurroundingtopics.Knowingwhatthesewordsmeancanhelpyouknowmoreaboutcomputers.Somepeopleusethesewordstoimpressotherpeople(Alsoknownasbuzzwords).

Examplesofjargon:

Bit-Thesmallestdataunit,caneitherbea“0.”ora“1.”.

Byte-unitofdata.SeealsoKilobyte,Megabyte,GigabyteandNibble

CPU–CentralProcessingUnit,Anothernameforprocessor

Data-Informationstoredonacomputer

Disk-Aplacetostoredata.

Email-Electronicmail.

GHz-Gigahertz.Usedoftenincorrectlytodescribethespeedofaprocessor.Butwithsome2.4GHzprocessorsfasterthan3.6GHzones,itisclearthatitisjustasalesmantrick.

Load-Getdatafromadisk

Nibble-HalfaByte

Save-Putdataonadisk

RAM–random-accessmemory(随机存取存储器),themorethebetter.

USB-UniversalSerialBus（通用串行总线，一种简化了插接多种附件的薄型插座）

WWW-WorldWideWeb,partoftheInternet

II.Pre-reading

1.QuestioningandansweringWhatdoyouknowaboutcomputer?

●Electronicmachinecapableofperformingcalculationsandothermanipulationsofvarioustypesofdata,underthecontrolofastoredsetofinstructions.Themachineitselfisthehardware;theinstructionsaretheprogramorsoftware.Dependinguponsize,computersarecalledmainframes,minicomputers,andmicrocomputers.Microcomputersincludedesk-topandportablepersonalcomputers.

●Amulti-functionelectronicdevicethatcanexecuteinstructionstoperformatask.

●Adevicethatacceptsinformation,processesit,andsuppliesanoutput.Acomputerusuallycontainsmemory,acontrolunit,arithmeticandlogicalunits,andameansforinputandoutput.

●aprogrammablehardwarecomponentthatiscontrolledbyinternallystoredprogramsandthatcanperformsubstantialcomputations(includingarithmeticandlogicoperations)withouthumanintervention.Acomputertypicallyconsistsofoneormoreprocessingunits,memoryunits,andassociatedperipheralinputandoutputdevices.

●Relatedtoautomationandelectronicdataprocessing.TheLibraryofCongresscommonlyclassesmostcomputer-relatedbooksinHF5548,QA75-76,Z52,T385,andsomeTKranges.

●amachineforperformingcalculationsautomatically

calculator:anexpertatcalculation(oratoperatingcalculatingmachines)

●Acomputerisadeviceormachineformakingcalculationsorcontrollingoperationsthatareexpressibleinnumericalorlogicalterms.Computersareconstructedfromcomponentsthatperformsimplewell-definedfunctions.Thecomplexinteractionsofthesecomponentsendowcomputerswiththeabilitytoprocessinformation.Ifcorrectlyconfigured(usuallyby,programming)acomputercanbemadetorepresentsomeaspectofaproblemorpartofasystem.Ifacomputerconfiguredinthiswayisgive

2.DiscussingandsharingHowhavecomputerschangedourlives?

Somedaysoon,ifyouhaven’talready,you’relikelytoplugintothecomputernetworknationgrowinginourmidst.Computerterminals,orsmallcomputersconnectedviamodem(amodulator/demodulatorcircuitforencoding/decodingcomputerchatter)toordinarytelephonelines,shouldbeasubiquitousasthetelephoneitself.They’reamuchmoreusefulandhumanetoolthanthephone,andwithcorporateAmericabehindthemthenetworkswillbeeverywhere----changingourlivesmorethananytechnologysincetheautomobile.

Joiningacomputernetworkisthesameasjoiningacommunity.Smallsystemsarelikevillages,wherenewmembersareformallywelcomed.Thelargernetworks,theSourceandCompuServe,forexample,arecities-anonymous,fulloflifeandevents,butdifficulttofitinto.

III.Reading

1.ListeningandreadingtotherecordingofthetextWHOAMI?

Turntopage18andlistenandreadtotherecordingofthetext.Payattentiontothepauses,pronunciationandintonationofthenativereader.

2.Readingaloudandunderliningexpressions

Nowwearetoreadthetextonceagainandunderlinealltheexpressionsinthetext.Putthemdownintoyournotebookafterclassashomework.

CollocationsfromWHOAMI?

beginas…,acalculatingmachine,bebuiltas…,followinstructionsfrom…,soundsimple,atthetime,atechnologicalrevolution,writeabook,make…work,solveproblems,becomehuge,hadartificialintelligence,gobackto…,thesizeof…,goby,changesize,becomesmallandthin,getquick,standtherebyoneself,beconnectedby…,shareinformationby…,talkto…,bring…into…,dealwith…,communicatewith…,servethehumanrace

3.Reading,identifyingandsettling

Attention,please!Itistimetoskimthetextonemoretimeandidentifythedifficultsentences.Tryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongyourgroupmembers.Youmayalsoputyourquestionstomeforhelp.

Chat（online）（在线）聊天

Tochatistotalkaboutordinarythingsthatarenotveryimportant.Youcanchattoonepersonortomanypeople.PeoplealsousethiswordnowforpartsoftheInternetwherewecantalkwithmanydifferentpeopleatthesametime.Usually,youchatontheinternetinachatroomormessagingservicelikeAOL(AmericanOn-Line)InstantMessenger(AIM),YahooMessenger,orMSNMessenger.

4.Readingandtransferring

Scanthetextforinformationtocompletethetablebelow,describingthedevelopmentofcomputer.

In1642

In1822

In1936

In1960s

In1970s

IV.Closingdownbydoingcomprehendingexercises

Turntopage18andinpairsdothecomprehendingexercisesNo.1and2.

Period2:AsamplelessonplanforLearningaboutLanguage

(ThePresentPerfectPassiveVoice)

Aims

TolearntouseThePresentPerfectPassiveVoice

Todiscoverusefulwordsandexpression

Todiscoverusefulstructures

ProceduresI.Warmingupbyreadingtothetape

Tobeginwith,turntopage18,listeningtoandreadingtotherecordingofthetextWHOAMI?Attentiongoestothepausesandintonation,aswellasthepronunciationofthereader.

II.Discoveringusefulwordsandexpressions

Inpairsdotheexercises1,2and3onpages19and20.Youmustfinishthemin10minutes.

III.Learningaboutgrammar

1.PassiveVoice—Overview

TenseorModel

PassiveSentence

SimplePresent

TheTOEFLexamisgiveneverysixmonths.

Simplepast

TheTOEFLexamwasgivenlastmonth.

SimpleFuture

TheTOEFLexamthisyearwillbegivenonOctober15.

PresentContinuous

TheTOEFLexamisbeinggiveneveryyear.

Presentperfect

TheTOEFLexamhasbeengiveneveryyearsince1950.

Pastperfect

TheTOEFLexamhadbeengivenbeforetheVietnamWaroccurred.

SimpleModal

TheTOEFLexamshouldbegiventoeveryForeignstudent.

PastModal

TheTOEFLexamshouldhavebeengiventoalltoenterUScolleges.

2.ThePresentPerfectPassiveVoice

ThestructureofThePresentPerfectPassiveVoiceis:have/has＋been＋~ed

IV.Readingaloudanddiscovering

Nowgobacktopage18toreadaloudanddiscoverinthetextexamplesofThePresentPerfectPassiveVoice.

Astheyearshavegoneby,Ihavebeenmadesmallerandsmaller.

Sincethen,myfamilyandIhavebeenusedbybillionsofpeopletodealwithinformationwitheachotheraroundtheworldbytheInternet.

V.Discoveringusefulstructure

Weshalldogrammarexercises1,2and3onpage20.

VI.Closingdownbydoingaquiz

Correctthemistakesinthesepassivevoicesentences

Example:Thehousewasbuildin1880.(correct=Thehousewasbuiltin1880.)

1.3000employeeswerelayingoff.

2.Astorywillmadeup.

3.Anideawasputtedforwardfordiscussion.

4.Hasthebookbeengivebacktoyouyet?

5.Mybankloanwillbepayedoffinfiveyearstime.

6.Nothingcanbeholdagainstme.

7.Ourallieswillbelendsupport.

8.Shehasneverheardof.

9.Shewasbeingknockeddownbyabus.

10.Shewaslettedoffwithafine.

11.Thecandlewasblowoutbythedraught.

12.Thecriminalwerelockedup.

13.Thefloodwaterwasbekeptbackbybarriers.

14.Theinconveniencewillmadeupforbythismoney.

15.Thekeysmusthavebeenbeingleftbehind.

16.Theoldcinemaisbeingpulldown.

17.Theprotestersbeingheldbackbythepolice.

18.Theroadwasblockingoff.

19.Thirtymorepeoplewerelaidofflastweek.

20.Yourjacketcanbehangedupoverthere.

Period3:AsamplelessonplanforUsingLanguage

(ANDY—THEANDROID)

Aims

TodiscussaboutIT

TowriteareportaboutIT

Toreadaboutandroidsorrobots

Procedures

I.WarmingupbytalkingaboutIT

WhatisInformationtechnology?Informationtechnology(IT)orinformationandcommunicationtechnology(ICT)isthetechnologyrequiredforinformationprocessing.Inparticulartheuseofelectroniccomputersandcomputersoftwaretoconvert,store,protect,process,transmit,andretrieveinformationfromanywhere,anytime.

II.Listeningandwriting

Turntopage21.LookatthepicturesandlistentoaconversationaboutdifferentkindsofinformationtechnologyorIT,discussandwritedowningroupstheadvantagesanddisadvantagesofeachkind.

III.Speakingandwriting

Supposeyouandyourpartneraregoingtohelpchoosecomputersforyourschool.Nowtalkaboutthespecialthingseachofthecomputercandoandwriteareporttoyourheadmaster.

IV.Reading,underliningandspeaking

Itissaidthatcomputerscouldbeputintoandroidsorrobots.ReadthetextAndy—TheAndroid,underliningalltheexpressionsandthinkofthefunyoucouldhave!

ExpressionsfromAndy—TheAndroid

partofafootballteam,onceayear,gettogether,playafootballgame,beas…as…,infat,looklike…,onthefootballteam,runfast,thinklikeahuman,shoutto…,incomputerlanguage,haveagoodshotforagoal,getsecondplace,winthefirstplace,haveanewkindofprogram,improveone’sintelligence,createabettersystem,playagainstahumanteam,inaway,program…with…,makeup…,afterall,withthehelpof…

V.Writingaletter

Supposeyouareanandroid.Whatwouldsaytoaspoiledchildwhowouldnotdohishomework?Writealettertotheboy.

Android

Anandroidisanartificiallycreatedbeingthatresemblesahumanbeing.ThewordderivesfromGreekAndr-‘man,human’andthesuffix-eidesusedtomean‘ofthespecies,kind,alike’(fromeidos‘species’).

Theworddroid,arobotintheStarWarsuniverse,isderivedfromthismeaning.Somepeoplemaintainthat,etymologically,thewordandroidmeansresemblingamalehumanandthatarobotresemblingawomanshouldlogicallybecalledagynoidforsexistlanguagetobeavoided;however,thiswordisnotcommonlyused.

Unlikethetermsrobot(amechanicalbeing)andcyborg(abeingthatispartlyorganicandpartlymechanical),thewordandroidhasbeenusedinliteratureandothermediatodenoteseveraldifferentkindsofman-made,autonomouscreations:

arobotthatcloselyresemblesahuman

acyborgthatcloselyresemblesahuman

anartificiallycreated,yetprimarilyorganic,beingthatcloselyresemblesahuman

Althoughessentiallyhumanmorphologyisnottheidealformforworkingrobots,thefascinationindevelopingrobotsthatcanmimicitcanbefoundhistoricallyintheassimilationoftwoconcepts:simulacra(devicesthatexhibitlikeness)andautomata(devicesthathaveindependence).

ThetermandroidwasfirstusedbytheFrenchauthorMathiasVilliersdelIsle-Adam(1838-1889)inhisworkTomorrow’sEve,featuringaman-madehuman-likerobotnamedHadaly.Assaidbytheofficerinthestory,“InthisageofRealienadvancement,whoknowswhatgoesoninthemindofthoseresponsibleforthesemechanicaldolls.”

PartTwTeachingResources(第二部分：教学资源)

Section1:AtextstructureanalysisofWHOAMI?

I.TypeofwritingandsummaryofWHOAMI?

Typeofwriting

Thisisapieceofnarrativewriting.

Mainideaofthepassage

Beginningasjustacalculatingmachinein1642inFrance,thecomputerhasbeenexperiencingimprovementagainandoveragainover300yearsormore,whichhasnotonlymadeitmorebeautifulandintelligentbutalsochangedman’slifeagreatdeal!

Topicsentenceof1stparagraph

Ibeganasacalculatingmachinein1642inFrance.

Topicsentenceof2ndparagraph

NoonecouldrecognizemeafterIgotmynewtransistorsinthe1960s.

II.Achainofeventsshowingthedevelopmentofcomputer

acalculatingmachinein1642inFrance→anAnalyticalMachinein1822→a“universalmachine.”in1936→thesizeofalargeroom→madesmallerandsmaller→gettingnewtransistorsin1960s→cleverandquicker→anetworkintheearly1960s→talkingtohumansusingBASICintheearly1960s→broughtintopeople’shomesin1970s→Internet

III.AretoldversionofthetextWHOAMI?

I,thecomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachinein1822,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.IwasnotverybigatfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.

Gettingnewtransistorsin1960sIbecamecleverandquicker.Iwasconnectedwithothercomputersandturnedouttopartofanetworkintheearly1960s.ThenIbegantalkingtohumansusingBASICintheearly1960s.In1970sIwasbroughtintopeople’shomes,andcametheInternet.

Section2:Backgroundinformationcomputers

I.HowDoComputersWork?

ComputerBasics

Toaccomplishataskusingacomputer,youneedacombinationofhardware,software,andinput.

Hardwareconsistsofdevices,likethecomputeritself,themonitor,keyboard,printer,mouseandspeakers.Insideyourcomputertherearemorebitsofhardware,includingthemotherboard,whereyouwouldfindthemainprocessingchipsthatmakeupthecentralprocessingunit(CPU).Thehardwareprocessesthecommandsitreceivesfromthesoftware,andperformstasksorcalculations.

Softwareisthenamegiventotheprogramsthatyouinstallonthecomputertoperformcertaintypesofactivities.Thereisoperatingsystemsoftware,suchastheAppleOSforaMacintosh,orWindows95orWindows98foraPC.Thereisalsoapplicationsoftware,likethegamesweplayorthetoolsweusetocomposelettersordomathproblems.

Youprovidetheinput.Whenyoutypeacommandorclickonanicon,youaretellingthecomputerwhattodo.Thatiscalledinput.

HowTheyWorkTogetherFirst,youprovideinputwhenyouturnonthecomputer.ThenthesystemsoftwaretellstheCPUtostartupcertainprogramsandtoturnonsomehardwaredevicessothattheyarereadyformoreinputfromyou.Thiswholeprocessiscalledbootingup.

Thenextstephappenswhenyouchooseaprogramyouwanttouse.Youclickontheiconorenteracommandtostarttheprogram.Let’susetheexampleofanInternetbrowser.Oncetheprogramhasstarted,itisreadyforyourinstructions.Youeitherenteranaddress(calledaURL,whichstandsforUniformResourceLocator),orclickonanaddressyou’vesavedalready.Ineithercase,thecomputernowknowswhatyouwantittodo.Thebrowsersoftwarethengoesouttofindthataddress,startingupotherhardwaredevices,suchasamodem,whenitneedsthem.Ifitisabletofindthecorrectaddress,thebrowserwillthentellyourcomputertosendtheinformationfromthewebpageoverthephonewireorcabletoyourcomputer.Eventually,youseethewebsiteyouwerelookingfor.

Ifyoudecideyouwanttoprintthepage,youclickontheprintericon.Again,youhaveprovidedinputtotellthecomputerwhattodo.Thebrowsersoftwaredetermineswhetheryouhaveaprinterattachedtoyourcomputer,andwhetheritisturnedon.Itmayremindyoutoturnontheprinter,thensendtheinformationaboutthewebpagefromyourcomputeroverthecabletotheprinter,whereitisprintedout.

II.Television

Oldportabletelevision

Atelevision(alsoTVortelly)isadevice(tool)withascreenthatreceivesbroadcastsignalsandturnsthemintopicturesandsound.Theword“television”comesfromthewordstele(Greekforfaraway)andvision(seeing).

UsuallyaTVlookslikeabox.OlderTVshadlargewoodenframesandsatonthefloorlikefurniture.NewerTVsbecamesmallersotheycouldfitonshelves,orevenportablesoyoucouldtakeitwithyouwhereveryouwent.ThesmallestTVscanfitinyourhand.ThelargestTVscantakeupawholewallinyourhouse,andmaysitonthefloor,orbejustalargeflatscreenthatcanbemountedonthewall.ManyTVsarenowmadeinwidescreenshapelikemovietheatrescreens,ratherthanold,moresquareTVs.

Atelevisionhasanantenna(oraerial),orithasacable.Thisgetsthesignalfromtheair,orcableprovider.TVscanalsoshowmoviesfromDVDplayersorVCRs.TVscanbeconnectedtocomputersandgameconsoles,usuallythroughakindofsocketcalled“SCART”.

III.WeborWorldWideWeb

TheWorldWideWebisthepartoftheInternetthatcontainswebsitesandwebpages.

ItisnotusedtodescribeWebPagesthatareusedofflinewherenetservicesarenotavailable,ornocomputernetworkexists-suchasWikipediaonCD.Inthiscasenorealphysicalsiteexistsotherthantheplacewherethecomputeris.BlogandWikicapabilitieswillalsonotbeavailablebecausetheserequireacommunicationwithothercomputers.

IV.Radio

Radioisacommunicationsinvention.Thoughoriginallyusedtocommunicatebetweentwopeople,itisnowusedtolistentomusic,news,andpeopletalking.RadioshowswerethepredecessortoTVprograms.

V.DVD

DVDmostcommonlystandsfor“digitalversatiledisk”.ItcanplayvideothatisofahigherqualitythanaVHStape.

VI.TwokindsofDVD

Theycanalsohold4.7GBofinformationasopposedtothe700MBthataCDcanhold.AplusofusingaDVDforavideoistheabilitytohaveinteractivemenusandbonusfeaturessuchasdeletedscenesandcommentaries.

VII.Email

Email(electronicmail)isamessage,usuallytext,sentfromoneInternetusertoanother.Emailisquickerthansnailmail(mail)whensendingoverlongdistancesandisusuallyfree.Tosendorreceiveanemail,acomputerwithamodemandtelephonelineconnectedtotheInternet,andanemailprogramarerequired.Emailaddressesaregenerallyformatedlikethis:[emailprotected](comorfrororgorukorother).

Somecompaniesletyousendandreceiveemailforfreefromawebsite.Gmail,HotmailandYahoo!dothis.

VIII.Human

Herearetwohumans.

Amanisontheleftandawomanisontheright.Ahumanorhumanbeingisaperson,likeyou.Amalehumanisaman,afemalehumanisawoman.Ifyouthinkaboutallhumansinthewholeworld,theyarecalledhumanity.Inthepast,peoplehavealsousedmanandmankindtomeanallhumans.

HumansarecalledHomosapiensbyscientists.Humansareananimalspeciesthatbelongstothegroupcalledprimates.Monkeysareprimatestoo,buttheprimatesmostlikepeoplearegorillasandchimpanzees.Mostscientiststhinkthatchimpanzeesandhumanscamefromacommonancestorbywhatiscalledevolution.Otheranimalsevenmorelikehumansthanchimpanzeesoncelivedtoo,buttheyarenowextinct.

Humanrightsarethosethingsthateveryonedeservesandthewaytheyshouldbetreatedbyotherpeople.

Section3:WordsandexpressionsfromUnit3Computers

common

n.1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。2.incommon:insharedpossession3.outofcommon:unusualadj.1.oforassociatedwiththegreatmassesofpeople:Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:commondecency.3.commontoorsharedbytwoormoreparties:commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:forthecommongood.6.commonlyencountered:acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:commonparlance.8.lackingrefinementorcultivationortaste:behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:produced...thecommonclothsusedbythepoorerpopulation.

simple

n.1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj.1.notelaborateinstyle;unornamented:asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:asimpleproblem.4.easyandnotinvolvedorcomplicated:asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:simplecourtesy.

technology

n.1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems

universal

n.couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj.ofworldwidescopeorapplicability:universalexperience.

mathematical

adj.1.statisticallypossiblethoughhighlyimprobable:haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:amathematicalwhiz.

artificial

adj.1.contrivedbyartratherthannature:artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:Herhusbandhatedtheartificialhumility.

disagree

v.1.bedifferentfromoneanother2.beofdifferentopinions:Shedisagreeswithherhusbandonmanyquestions.

disadvantage

n.thequalityofhavinganinferiororlessfavorablepositionv.putatadisadvantage;hinder,harm:Thisruleclearlydisadvantagesme.

choice

n.1.theactofchoosingorselecting:Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:Myonlychoiceistorefuse.

adj.1.ofsuperiorgrade:choicewines.2.appealingtorefinedtaste:choicewine.

material

n.1.thingsneededfordoingormakingsomething:writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:Shemeasuredoffenoughmaterialforadress.

adj.1.directlyrelevanttoamatterespeciallyalawcase:Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:materialneeds.3.concernedwithworldlyratherthanspiritualinterests:materialpossessions.4.derivedfromorcomposedofmatter:Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary

mate

n.1.thepartnerofananimal(especiallyasexualpartner):Helovedthemareandallhermates.2.afellowmemberofateam:Itwashisfirststartagainsthisformerteammates.

create

v.1.investwithanewtitle,office,orrank:Createoneapeer.2.createbyartisticmeans:Createapoem.3.bringintoexistence:Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:createafuror.

move

n.1.theactofdecidingtodosomething:Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:Movementisasignoflife.v.1.disposeofbyselling:Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):Wemustmovequickly.9.changelocation;move,travel,orproceed:Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:Thismovedmetosacrificemycareer.

brain

n.1.partofthecentralnervoussystemthatincludesallthehighernervouscenters;enclosedwithintheskull;continuouswiththespinalcord2.mentalability:He’sgotplentyofbrainsbutnocommonsense.

spoil

n.1.theactofstrippingandtakingbyforce2.theactofspoilingsomethingbycausingdamagetoit:Herspoilingmydresswasdeliberate.3.(usuallyplural)valuablestakenbyviolence(especiallyinwar):Tothevictorbelongthespoilsoftheenemy.v.1.becomeunfitforconsumptionoruse:Themeatmustbeeatenbeforeitspoils.2.haveastrongdesireorurgetodosomething:Heisspoilingforafight.

mop

n.cleaningimplementconsistingofabsorbentmaterialfastenedtoahandle;forcleaningfloorsv.1.makeasadfaceandthrustoutone’slowerlip:Mopandmow.)2.towashorwipewithorasifwithamop:Mopthehallwaynow.

wander

v.1.goviaanindirectrouteoratnosetpace:Afterdinner,wewanderedintotown.2.moveaboutaimlesslyorwithoutanydestination,ofteninsearchoffoodoremployment:ThewanderingJew.3.loseclarityorturnasideespeciallyfromthemainsubjectofattentionorcourseofargumentinwriting,thinking,orspeaking:Hermindwanders.4.besexuallyunfaithfultoone’spartnerinmarriage:Mightherhusbandbewandering?5.tomoveorcausetomoveinasinuous,spiral,orcircularcourse:Sometimes,thegoutwandersthroughtheentirebody.

Unit 3 Travel journal教案3

一名优秀的教师在教学时都会提前最好准备，高中教师在教学前就要准备好教案，做好充分的准备。教案可以让上课时的教学氛围非常活跃，让高中教师能够快速的解决各种教学问题。那么怎么才能写出优秀的高中教案呢？下面是小编精心收集整理，为您带来的《Unit 3 Travel journal教案3》，仅供参考，欢迎大家阅读。

Unit3Traveljournal
TheFirstPeriod

●从容说课
Thisisthefirstperiodofthisunit.Thisunitisabouttravel，sotheteachercanfirstbrainstormthewordsorphrasesabouttravel.SincetherearesomenewwordsforthenamesofthecountriesandcitiesinSoutheastAsia，theteachercanfirstdealwiththemwiththehelpofamap.ThenSsaresupposedtofindouttheone-wayfaretogettothedestinationfordifferentkindsoftransportation.ThistaskgivesSsachancetopractisegettinginformationthroughtheInternet.LaterSsarerequiredtotalkinpairsaboutthefollowingsixquestions：（1）Whenareyouleaving？（2）Howareyougoingto...？（3）Whenareyouarrivingin/at...？（4）Whereareyoustaying？（5）Howlongareyoustayingin...？（6）Whenareyoucomingback？ThispartisdesignstosmoothawaySs’difficultyinunderstandingthepresentcontinuousforfutureuse.
Toleadinthetext，theteachercanaskSstodiscusswhyariverisgreatorwhatarivercanbeusedfor.ThentellSstheMekongisagreatriverliketheChangjiangRiver，anditisthebirthplaceofoldcivilizationandlifebloodoftheSoutheastAsia.
Readingskillsareveryimportantforseniorstudents.Forthefirstreading，weintendtocultivateSs’skimmingability.Theyarerequiredtolistthewordsreferringtodifferenttopographicalfeaturesinthetext.ThentheyarerequiredtomatchthesewordswiththeEnglishexplanations.ThroughthispartwecandevelopSs’abilityofguessingthemeaningsofnewwordsaccordingtothecontexts.TostimulateSstotakepartintheclassactivitymoreactively，theteachercanorganizeagroupcompetition，toseewhichgroupcanfinishthetaskfastestandbest.ToshowSsthedifferenttopography，theteachercanpresentsomepictures.Lateron，theteacherwillteachsomeothernewwordsinthetextandaskSstopronouncethesewordscorrectly.Forthesecondreading，theteacherwillpresentfivestatementsforthestudentstojudge.ThispartisdesignedtogetSsintothehabitofreadingapassageasawhole，thatis，togetthegeneralidea.AnotherpurposeofthispartistoaskSstopayattentiontothedetails.
TheteacherasksSstoreadthetitleandsubtitleinordertomakethemthinkabouttheorganizationofthewholepassage，andthismethodcanhelpthemnotonlyintheirunderstandingbutalsoinwritingapassage.TodevelopSs’scanningability，theteacherdesignsfivequestions，someofwhichareverydifficult.Sotheteacherwillhelpthemtoreadbetweenthelines，thusSscangraduallygettheabilitytounderstandthewriter’simpliedmeanings.
Toconsolidatethenewwordsinthepassage，theteacherasksSstofinishPart1andPart3onPage20afterclass.Atthesametime，theyarerequiredtofindoutwhattheyshouldpayattentiontowhengoingtraveling.ThispartisdesignedtohelpSstogetthesenseofprotectingthemselvesandnature.
●三维目标
1.Knowledge：
（1）Learnthefollowingnewwordsandtheirpronunciation：
journal，fare，transport，Vientiane，Laos，PhnomPenh，Cambodia，HoChiMinh，Vietnam，Mekong，finally，cycle，persuade，stubborn，insist，source，proper（ly），detail，determine，determined，altitude，atlas，glacier，Tibetan，rapids，valley，waterfall，plain，delta.
（2）Gettoknowthatthepresentcontinuoustensecanbeusedforfutureuse.
（3）Gettoknowwhatarivercanbeusedfor.
2.Ability：
（1）LearntogetinformationthroughtheInternet.
（2）Graspsomereadingskills.
3.Emotion：
StimulateSs’lovefornaturebygettingthemtoknowthegreatnessofariver.
●教学重点
GetSstolearndifferentreadingskills，especiallytheabilitiesofunderstandingtheimpliedmeanings.
●教学难点
（1）Knowthemeaningsandpronunciationofthenewwords.
（2）Learndifferentreadingskillsfordifferentreadingpurposes.
●教具准备
Multi-mediaclassroomandothernormalteachingtools.
●教学过程
Step1Greetings
Teacher：Hello，myfriends.
Students：Hello，MissXu.
Step2Warming-up
T：Wehaveknowneachotherfor2weeksandIthinkwehavebecomefriends.Canyoutellmewhatyourhobbiesare？
S：Ilikesinginganddancing/football/surfingontheInternet/skiing/traveling...
T：Good.Thenwhenyoucomeacrosstheword“traveling”，whatwillyouthinkof？
S：Travelcost/means/destination/plan...
T：Yes.Beforewesetoff，weshouldfirstmaketravelplan，Imeanweshouldfirstdecidethedestination，themeansoftransportanditsfare.（Writethethreewordsontheblackboard.）
Here“destination”means“aplacetowhichsb.isgoing”.
Wecangotoourdestinationbydifferentmeansoftransport，forexample，bybus，bytrain，byplaneandsoon.
“Transportfare”referstohowmuchyoupayfortheplane/trainticket.
Now，lookatthescreen，readaftermethethreewords.
SupposeyouandyourfriendaregoingtoSoutheastAsia，whichcountryorcitydoyousuggestvisiting？Hereisamaptohelpyou.
S：Thailand，Philippines，Singapore，越南，柬埔寨，老挝...
T：Good，Icanseeyouaregoodatgeography.Butyou’dbettersaythesenamesinEnglishandpronouncethemcorrectly.Pleasereadafterme：
Vientiane，Laos，PhnomPenh，Cambodia，HoChiMinh，Vietnam.
T：NowIgiveyouseveralminutestocompletethechart.
T：Pleasetellmewhatyouhavegot.
S：...
T：Then，I’llaskyouandyourpartnertoaskandanswerthefollowingsixquestions：
（1）Whenareyouleaving？
（2）Howareyougoingto...？
（3）Whenareyouarrivingin/at...？
（4）Whereareyoustaying？
（5）Howlongareyoustayingin...？
（6）Whenareyoucomingback？
T：Tellmewhattenseisusedineachsentence？
S：Thepresentcontinuoustense.
T：Doyouthinkitdescribeswhatishappeningnoworatpresent？
S：...
T：No，itdescribeswhatwillhappeninthefuture.
Question1means“Whenareyougoingtoleave/Whenwillyouleave？”Canyousaytherestfivequestionsinanothertwoways？
S：...
Step3Pre-reading
T：Nowlookatthemapagainandwecanseeagreatriverflowsthroughthecountriesmentionedabove.Doyouknowitsname？
S：眉公河。
T：Yes，theMekong.Bytheway，whatcanariverbringus？Orwhatdoweuseariverfor？
S1：Arivercanprovidesuswithdrinkingwater.
S2：Wecanusearivertowashdifferentthingslikeclothes，vegetables.
S3：Wecangetfishfromariver.
S4：Ourcropsandplantsneedtobewatered.（Wecanuseariverforirrigation.）
S5：Ariverwasandnowstillisoneofthegreatmeansoftransport.
S6：Watercanbeusedtomakeelectricity.
T：Great，sowealwayssayariveristhebirthplaceofcivilizationandlifebloodofacertainplace.AndtheMekongisonesuchriver.Todayourtextwillshowusaroundthegreatriver.
Step4Firstreading
T：AlongtheMekong，wecanseedifferenttopographicalfeatures.Gothroughthepassagequicklyandfindout7suchwords.
Haveyoufinishedthejob？Herearethesevenwords：waterfall，rapids，valley，delta，glacier，plain，canyon.
NowI’lldivideourclassintofourgroups.Eachgroupchoosesonestudenttotakepartinthecompetition.WewillseewhocanmatchthenewwordswiththeEnglishexplanationscorrectly，andusetheleasttime.
（1）waterfall
（2）rapids
（3）valley
（4）delta
（5）glacier
（6）plain
（7）canyon
a.thelowplacewhereariverentersthesea
b.alargeflatplace
c.alargebodyoficemovingslowlydownahighvalley
d.adeep，verywidevalley，usuallywithariver.
e.alonglowwideplacebetweenhills
f.afast-movingpartofariver
g.ahighplacefromwhichariversuddenlygoesdown
S1：...
S2：...
S3：...
S4：...
T：waterfall：ahighplacefromwhichariversuddenlygoesdown
rapids：afast-movingpartofariver
valley：alonglowwideplacebetweenhills
delta：thelowplacewhereariverentersthesea
glacier：alargebodyoficemovingslowlydownahighvalley
plain：alargeflatplace
canyon：adeep，verywidevalley，usuallywithariver
Tomakeyoubetterunderstandwhatdifferenttopographicalfeaturesarelike，Iwillshowyousomepictures.
Tellmewhattheyare.
Picture1
Itisaglacier.WhataboutPicture2？
Itisacanyon.（theLancangRiver）
Picture3
It’stheMekongDelta.TheMekongDeltaisthebottomhalfofVietnam’stworicebaskets.
（TheotheristheRedRiverDeltaintheNorth.）
Ofcourse，Picture4showsusawonderfulsceneofwaterfalls.
Picture5
Thepictureshowsusamanisraftingonrapids.
Therearesomeothernewwordsinthepassage：
Pleasereadafterme.（withChinesemeaningaftereachword）
finally，
cycle，
persuade，
stubborn，
insist，
source，
proper（ly），
detail，
determine，determined，
altitude，
atlas，
Tibetan，
Step5Secondreading
NowIthinkthereshouldbelittledifficultyinyourunderstandingthetext.
Pleasereadthepassageandjudgewhetherthefollowingstatementsaretrueorfalse.
1.WangKungfirsthadtheideatocyclealongtheMekong.
2.WangKungandWangWeihavehadthedreamtocyclealongtheMekongsincemiddleschool.
3.TheydecidedtobegintheirtripfromthesourceoftheMekong.
4.WangWeididn’tthinkmuchaboutthedifficultyofthetrip.
5.TheMekongflowsthroughfivecountries.
S1/S2/S3/S4/S5：...
T：Statement1isfalse.NotWangKungbutWangWeifirsthadtheidea.
Statement2isfalse.Theyhavehadtheirdreamtotakeagreatbiketripsincemiddleschool.
Statement3istrue.
Statement4istrue.
Statement5isfalse.TheMekongactuallyflowsthroughsixcountries：China，Burma，Thailand，Cambodia，LaosandVietnam.
Step6Readingaloud
T：Pleaselookatthesubtitle：TheDreamAndThePlan.Howmanypartscanthepassagebedividedinto？
S：Fromthesubtitle，weknowthepassagecanbedividedintotwoparts.Part1talksabouttheirdream，whilePart2talksabouttheirplan.
T：Youareclever.Part1isParagraphOne.Part2consistsofParagraph2andParagraph3.Nowpleasereadthesecondpartaloud.Payattentiontotheirplan.
Now，pleasediscusswithyourpartnersabouttheanswerstothequestions：
（1）WhoareDaoWeiandYuHang？
（2）WhereisthesourceoftheMekongRiver？
（3）WhichseadoestheMekongenter？
（4）IsitadifficultjourneyalongtheMekongRiver？Why？
（5）IsWangKungveryeagerforthetrip？
S1：DaoWeiandYuHangaretheircousins.
S2：ThesourceoftheMekongRiverisinQinghaiProvince.
S3：TheMekongenterstheSouthChinaSea.
S4：Yes.BecausetheMekongbeginsataglacieronaTibetanmountain，thenitbecomesrapidswhenitpassesthroughdeepvalleys，sometimesenterswidevalleysandbecomesawaterfall.
T：Yes，inshort，wemaysaythetripisdifficultbecausethetopographyalongtheriverisverycomplicated.
S5：...
T：Stilllookatthesecondparagraph，“Iknowtheproperwayisalwaysherway.”ThatmeansWangKungdoesn’tcompletelyagreewithhissisterandisnotverypleasedwithher；meanwhile，fromthesentence“Itoldhertheairwouldbehardtobreatheanditwouldbeverycold.”，wecanseethatWangKungisafraidofthedifficultythatmightmeetwith，soheisveryeagerforthetrip.
Step7Homework
FinishPart1andPart3onPage20.
●板书设计
Unit3Traveljournal
TheFirstPeriod
NewwordsDiscussion
1.fear9.PhnomPenhWhatcanariverbeusedfor？
2.stubborn10.Cambodiatransport
3.delta11.HoChiMinhdrinkingwater
4.glacier12.Vietnamwashing
5.Transport...irrigation
7.Vientianefish
8.Laos

●活动与探究
Formyourowntravelinggroup，discusswhatyoushoulddoandwhatyoushouldneverdowhentraveling.
Don’tsDos
nolitteringprotectanimals
nofeedinganimals
Ifyouhavemoretosay，youcanchangetheform.
●备课资料
1.MekongRiver—TheLifebloodofSoutheastAsia
TheMekongRiveristheheartandsoulofmainlandSoutheastAsia.The12thlongestriverintheworld，theMekongruns4800kilometersfromitsheadwatersontheTibetanPlateau（高原）throughYunnanProvinceofChina，Burma，Thailand，Cambodia，LaoPDRandVietnam.
Over60millionpeopledependontheMekonganditsbranchesforfood，water，transportandmanyotheraspectsoftheirdailylives.Itsannualflooddroughtcyclesareessentialforthesustainableproductionofriceandvegetablesonthefloodplains（洪泛区）andalongtheriverbanksduringthedryseason.KnownastheMotherofwaters，theriversupportsoneoftheworld’smostdiverse（多种经营的）fisheries（渔场），secondonlytotheAmazon.Thisvitalecosystemandlifebloodoftheregioniscurrentlyunderthreat.Overthepasttenyears，morethan100largedamshavebeenproposedfortheMekongbasinbyinstitutionsliketheAsianDevelopmentBank（ADB）andtheMekongRiverCommission.Someoftheseprojectshavealreadybeenbuilt.
OneofthegreatestthreatsisChina’splanstoconstructeightdamsontheUpperMekongLancang.Twoofthesedamshavealreadybeencompleted，andconstructiononthethirdproject，Xiaowan，beganinJanuary2002.ThesedamswillhavewidespreadimpactsonthelivelihoodsofMekongcommunitiesandonthenaturalecologyoftheriversystem.
InLaos，IRNisworkingtostopWorldBanksupportfortheDamandensurethatcommunitiesreceivejustcompensationforlossessufferedduetotheADB-fundedNamandDams.IRNisalsomonitoringbroaderregionalwaterresourcedevelopments，particularlythosefundedbytheADB.
InThailand，IRNhasbeenworkingwithcommunitiesaffectedbythePakMunandRasiSalaidamswhoarecampaigningforthegatesofbothdamstobepermanentlyopenedandfortheMunRivertoberestored.
IRNisalsomonitoringtheimpactsoftheYaliFallsDaminVietnam，whichhasaffectedcommunitiesinbothVietnamandCambodia.
2.theMekongDelta
TheMekongDeltaisthebottomhalfofVietnam’stworicebaskets，theotherbeingtheRedRiverDeltaintheNorth.
Thisvastdeltaisformedbythedepositionofthemultipletentaclesandtributaries（支流）ofthemightyMekongRiverwhichhasitsoriginintheTibetanhighlandplateau2800milesaway.Fromitssource，therivermakesitswaythroughChina.
Myanmar（Burma），Laos，CambodiaandSouthVietnambeforeflowingoutintotheSouthChinaSea.TheMekong’s—thepeopleofSouthVietnamareoftenveryproudoftherichnessandvastnessofthisland.Whenreferringtothericefieldsinthisarea，theyoftensay，“cobaythangcanh”，meaningthelandissolargethatthecranescanstretchtheirwingsastheyfly.Today，theregionisoneofVietnam’shighestproducerofricecrops，vegetablesandfruits.

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