Unit19ModernAgriculture教案
课时安排
Period1warminguplistening
Period2reading
Period3speaking
Period4grammarintegratingskills2(WB)
Period5integratingskills1writing(SB)
Period1warminguplistening
Task:
Thestudentsaretoreadthestatisticgraphdiscussthechangesthatthegraphshows.
Goals:
1)Tocultivatethestudents’abilitytoreadanalyzethegraph.
2)Tocultivatethestudents’abilityoflisteningforinformation.
Teachingprocedure
Task1Brainstorming
Whatwillyouthinkofwhenyouseetheword“agriculture”?AsktheSstogiveasmanywordsaboutagricultureaspossible.
Task2:Discussion
AsktheSs:“Howmanymealsdoyouhaveeveryday?Whichmealdoyouthinkisthemostimportant?Why?”
Nowlet’shaveadiscussion.(Dividethewholeclassinto2groups.)
1Group12:Whatkindoffooddidweeatatbreakfast,lunchsupperinthepast?Group34:Whatkindoffooddoweeatatbreakfast,lunchsupperatpresenttime?
breakfastlunchsupper
InthepastPorridgesalted
vegetablesNoodlesRicedeliciousdishes
AtpresentMilk,bread,fried
bread,etc.FastfoodFastfood
2Whydoyouthinkpeoplealwayspreferfastfood?(fast;busy)Whatcanwelearnfromthedifferencesbetweenthefoodinthepastatpresenttime?(Nowpeopleliveabetterlife;peoplearebusierthanbefore,etc.)
Task3:Nowopenyourbooks.Lookatthegraphonpage43answerthefollowingquestions.
Comparedwiththefarmproductsfrom1986-1990,weproducedmoregrains,cottons…thanbefore.
Whydoweproducemorefarmproductsthanbefore?(weliveabetterlife;makemoremoney;canaffordmoreexpensivefoodthanbefore)
1Howarepeople’seatinghabitschangingovertheyears?Whydoyouthinkthishappens?
2Howhasagriculturalproductchangedduringtheseyears?Whatdoyouthinkcausedthesechanges?
3Whateffectsdoyouthinkthechangesineatinghabitswillhaveonagricultureornature?
Task4:Listening
Prelistening
AsktheSs:“Whatdoesagriculturedependon?”TheSswillgivemanydifferentanswers.Afterthat,showtheanswerthepicturesonthescreen.
(weather,places,waterothernaturalsources)
Question:Ifwechangedthestructureofagriculture,whatdoyouthinkwillhappentothenature?(Wewillproducelessormaybewecan’tgetanyfoodatall.)
2)Whilelistening
1Listentothetape.Thepassageyouheartalksabout
(T)historyoffarming()farmersinAmerica()fishing
(T)protectionofnature(T)farmersinChina()pigs
(T)environmentalproblems(T)trees(T)dikes
2Whichofthefollowingsentencesaretruewhicharefalse?
1)InearlytimesfarmersinChinamovedaroundburntforests.(T)
2)AllfarmersinSouthAmericaburnforeststocreatefarmland.(F)
3)Flooddroughtsaredisastersthatfarmerscannotstop.(F)
4)SomeofthelandinChinaistoowettogrowcrops.(T)
5)Fishfarmersdamagenature.(F)
3Listentothetapecompletethesentencesbyusingyourownwords.
Whenfarminggoesagainstnature,allkindsofenvironmentalproblemsaretheresult.Theearliestfarmersdestroyednature.Theirwayofagricultureledtofloodsdroughts.Itisanoldtruththatfarmingshouldnotgoagainstnature.ThelandthatTanXiaoZaoboughtwastoowetcouldnotbeusedforfarming.Insteadtheychangedthefieldsintofishponds.Ontheirfarmtheykeptfish/ducks/chickensgrewfruittrees.
3)Postlistening
SupposeyouareTanXiaoZao.Becauseofyoursuccessfulfarmingonthefield,youareinvitedtoabigmeetingthatmanylocalfarmerswillattend.Youareaskedtogivealectureaboutyourexperiencetellinghowyouhaveworkedonthenearlydesertedfieldbecomeasuccessfulfarmer.
Homework:
1Listentothetape,finishthelisteningpartonWB(p107).
2previewthereadingpassage.
Period2Reading
Task:
TheSsaretoreadapassagetolearnthedevelopmentofmodernagriculture.
Goals:
1)Tocultivatethestudents’abilitytoscanskimthepassages.
2)Tocultivatethestudents’abilityoffurtherunderstandingaboutthetext.
Teachingprocedure
1Prereading
Classifythepicturesinthefollowingway:
Traditionalfarming(135)
AgricultureModernfarming(246)
Hi-techfarming(78)
2Prereading
Comparetraditionalmodernfarming,focusingontheadvantagedisadvantageofmodernfarming.Thenfilltheform.(Showthepicturesagain)
AgricultureAdvantagesDisadvantages
Traditionalfarming
Modernfarming
Hi-techfarming
3Whilereading
1)Scanning:
Q1:What’sthebiggestproblemtoChinesefarmers?
Theshortageofarableland.
Q2:WhatdoesGMmean?
“G”standsfor“genetically”
“M”standsfor“modified”(changed)
2)Skimming:
A.Readthewholetextfindoutthetopicsentenceineachparagraph.
B.Answerthefollowingquestions:
1.HowmuchdoesarablelandtakeupinChina?
Only7percent.
2.Howmanywaysarementionedtomakethelandproducemore?Whatarethey?
4.Fertilisation,irritation,2ormorecropsareplantedeachyearwherepossible,moreadvancedtechnicalinformation.
3.Whatdoesnewtechniquesmean?
Thosethatareusedtoincreaseagriculturalproductionwithoutharmingtheenvironment.
4.Whendidscientiststarttodevelopnewtechniques?
Fromtheearly1990s.
5.Howmanyunusualwaysarementionedtodealwiththeshortageofarableland?
2.Growvegetablesingreenhouses,GM.
4Postreading
1)Choosethebestanswers.
1InChinaonlysevenpercentofthelandisusedforfarming.Thisis__D__.
Abecausefarmersdon’tneedmorelandtoproducefoodforthewholepopulation
BbecauseChinaneedsmoremorelandtobuildcities
BbecauseChinaneedsmoremorelandtobuildcities
Cbecausetherearenotenoughfarmerstoworkontheland
Dbecausetheotherlandcan’tbeusedforagriculture
2Fertilisationisatechniquethatisusedto__A___.
AmakepoorsoilbetterBmakewetlanddrier
CmakedrylandwetterDgrowvegetableswiththeirrootsinwaterinsteadofearth
3Modernagriculturemeansfindingwaysto___C___.
Aincreaseirritationstopusingfertilisers
Bstopirritationusingfertilisers
Cincreaseproductionbefriendlytotheenvironment
Dproducethesameamountwhiletakingbettercareofnature
4Inthesentence“…theyareprotectedfromthewind,raininsects”,“they”means_C_.
AgreenhousesBroots
CvegetablesDtomatoes
5InGM“M”standsfor“modified”,whichmeans“changed”.Whatchangesis___C___.
Athewayinwhichpoorsoilismadebetter
BthewayinwhichChinesefarmersworkontheirland
Cthewayinwhichcropsdevelopfromseed
Dthewayinwhichfarmerstakecareoftheenvironment
2)Answerthefollowingquestionsbyfurtherunderstandingaboutthetext.
1Atthebeginningofthepassage,whydoesthewritersay“ItisonthearablelandthatthefarmersproducefoodforthewholepopulationofChina”?
ItshowshowgreatweChineseare:Weproducefoodforsomanypeoplewithsolittlearableland.
2Whatdoesthewriterwanttotellusbysaying,“Notonlyfoodproductionisimportantbutalsotakingcareoftheenvironment.”?
Wemusttakecareoftheenvironmentaswellasfoodproduction.Thatistosay,weshouldproducemorefoodbymeansofnewtechniqueswhichwillnotdoharmtotheenvironment.
3Whatcanweinferfromthesentence“InChinaaboutonehundredresearchstationsarenowdoingGMresearchtomakebettertomatoes,cotton…”
Inthefuturewecaneatthehi-techproducedfood,whichcontainsmorevitaminswillnotdoharmtotheenvironment.
4Whatcanyouimagineaboutthefutureoffoodproduction?
Wecanproducemorefoodthannowwithnewtechniques.
3)Groupwork:
ThroughGMitispossibletochangefruits,vegetablesevenanimals.Wecanchangethewaytheygrow,wheretheycangrow,howtheywilltaste,whatcolorwhatshapetheywillhave.Decidewhichfruits,vegetablesfarmanimalsyouwouldchange,explainhowyouwouldchangethemwhy.
KindHowwouldyouchangeit?Whydoyouwanttochangeitinthisway?
fruit
vegetables
animals
Homework:
Findoutsomesentencesyouenjoysmost,trytorecitethemaspossibleasyoucan.
Consultthewebsites:
.cn/newscenter
pleteeachofthesentencesbelow.
NounVerbAdjective
FertilizationFertiliseFertile
ProductionProduceProductive
ProductionProtectProtective
ModificationModifyModified
1Afterafewteststhemodifiedsoftwarecouldbeusedonallcomputers.
2Protectingtheenvironmentdoesnotmeanfarmers’cropshavetogowithoutprotection.
3Ifthesoilisnotfertilefarmershavetousechemicalfertilisers.
4Ifwewanttoproducemore,everybodyhastobemoreproductive.
4Grammar
TheUseof“it”(2)forEmphasis
强调结构的形式是“It+be的适当形式+被强调部分+that/who+剩余部分”,意为“正是…”;若被强调部分是人,引导词用who或that均可,若是其他强调部分,则引导词一律用that。
Changethefollowingsentencesusingitforemphasisindifferentways:
TomstudiedatBeijingUniversitylastyear.
ItisTomwho/thatstudiedatBeijingUniversitylastyear.
ItisatBeijingUniversitythatTomstudiedlastyear.
ItislastyearthatTomstudiedatBeijingUniversity.
5Situation
Tomwasrobbedofhiswalletatthegateofthebankwhenhewasgettingout.Hecalledthepoliceatonce.Soonapolicemancameaskedhimoneoftheclerksinthebank.Becausethepoliceneedexactinformation,Tomtheclerkhadtoemphasizeeachoftheanswers.
Thepossiblebeginning:
Victim:Thankstogod,you’vecomeatlast!
Policeman:Let’sgetdowntothepoint.Youreportedthatyouwererobbed,didn’tyou?Wheredidithappen?
Victim:Righthere.
Policeman:Here?Atthebankgate?
Victim:Yes,yes.ItwasatthegateofthebankthatIwasrobbed.
…
6Integratingskills2
Zhuozuo(where):insouthChina
problem?
inthepast:floods,sandstormsordroughts
solution(who/how?)
atpresent:
1)HuMeiyingallwomenfromthevillagesaroundplanttrees.
2)Peoplearenotallowedtocutdownthetreeswhentheyarestillsmall.
result
1)Allthehillssurroundingtheirvillagearecoveredwithgreentrees.
2)Thetreeteacropsarealsobringinmoneytothem.
Homework:
1Make5sentencesusingitforemphasis.
2Previewintegratingskills1onpage48.
Period5integratingskills1writing
Task:
TheSsaretoworkoutaplanforhis/herownvegetablegarden.
Goals:
1)EnabletheSstoknowtheimportanceofdoingfarmworkattherighttimeoftheyear.
2)EnabletheSstolearntowriteapassageintroducingYuanLongping.
Teachingprocedure
1warmingup
Show4picturesofdifferentseasonsinayeartorevisewordsof4seasons12months.
1Whatseasondoyouthinkthe1stpictureis?…
2Howmanymonthsarethereinspring?Whatarethey?
2Prereading
1Whatcanyouseeinthepicture?
2WhatdoyouknowaboutJiaSixie?
Heisascientistinfarming;hewroteabookcalledQiminYaoshu.
3Whilereading
1)Fastreading
WhydoweconsiderJiaSixieasanagriculturescientist?
BecausehespenthistimeonresearchintoagriculturewroteabookcalledQiminYaoshu,whichisaboutbothfarminggardening.
2)Carefulreading
Thelifeoffarmerisbusy.Eachmonththereisalotofworktodo:ploughing,sowing,
weeding,harvesting,fertilisingandsoon.WhatadvicedoesJiaSixiegivefarmers?
Advice
OntimeoffarmingAtthecorrecttime…
Goagainst…atthewrongtime
OnsoilExaminethesoil…carefully
Condition…notgood,…improve…
Beforesowingplantingcrops…
CleanremovetheweedsSheeporcows
Landshouldbeploughed
OnploughingPloughdeep…ploughlessdeep
Autumn…deeperthanspringploughing
OnchangingcropsThebestharvestisreached
OnplantsinthesamefieldTogrowdifferentplantsnexttoeachother
4Postreading
1)Enjoysomefarmers’proverbssayings.
Farmers’proverbssayings
Thewisdomoffarmersabouttheweatherfarmingiscollectedinmanypopularproverbspassedonfromgenerationtogeneration.Thefollowingproverbstellyousth.AbouttheweatherdinEngland.AretheytrueforChina?
1Noweatherisill,ifthewindbestill.
2Yellowskyatsunset,windinthemorrow.
3Rainbeforeseven,clearbyeleven.
4AprilshowersbringMayflowers.
5Deedsarefruits,wordsarebutleaves.
6Thebestgroundbearsweedsaswellasflowers.
7Nevercackleunlessyoulay.
2)Imagineyouhaveavegetablegardenyouwanttogrowbeans,cabbages,onions,tomatoessunflowers.Whatwillyoudoineachmonthoftheyear?
NovemberItisinNovemberwhenwehavetoploughthelandforthefirsttime.Theploughinghastobedonedeep.
AsktheSstowriteaplanfortheirvegetablegarden.
5Writing
袁隆平人物简历
袁隆平被誉为中国的“杂交水稻之父”.中国农民说,吃饭靠“两平”,一靠邓小平----制定了生产承包责任制的政策,二靠袁隆平----发明了杂交水稻。
袁隆平,男,1930年9月出生于北京,1953年毕业于西南农学院农学系。毕业后,一直从事农业教育及杂交水稻研究。
在中国人民正闹饥荒的20世纪60年代,袁隆平提出了杂交水稻的概念,这种新型水稻具有高产量的特点。10年后,他研制成功了一种产量比一般水稻高出20%的新型水稻。
袁隆平一生献身于农业研究,先后受到联合国教科文组织、粮农组织的称誉。袁隆平虽已年届70岁,仍然一如既往地从事农业研究。
Newwords:杂交水稻hybridrice;生产承包责任制SystemofProductionResponsibility;学院institute;闹饥荒sufferthefamine;产量yield;联合国教科文组织UNESCO,粮农组织FAO.
Possibleversion:
YuanLongpingisknownasChina’s“fatherofhybridrice”.It’ssaidthatinChina,weeatdependingon“TwoPing”----DengXiaoping,whomadethepolicyofSystemofProductionResponsibility,YuanLongping,whoinventedhybridrice.
YuanLongping,whowasborninSeptember,1930,graduatedfromAgricultureDepartmentinSouthwestAgriculturalInstitute.Hehasbeenworkingonagricultureeducationtheresearchintohybridricesincehelefttheinstitute.
Inthe1960s,whenChinawassufferingseriousfamine,hecameupwiththeideaofhybridrice,whichhasahighyield.Tenyearslater,hesucceededininventinganewspeciesthatproduceda20percenthigheryieldthancommontypesofrice.
Yuandevotedhimselftotheresearchintoagriculture,washonoredbyUNESCOFAO.Althoughheis70yearsold,heisstillworkingontheresearchintoagriculture.
Homework:
WriteapassageintroducingYuanLongping.
Consultthewebsites:
Unit19Modernagriculture第一课时教案
I.Teachingaims:
Talkaboutmodernagricultureanditseffectsonpeople’slife
learnhowtogivesomebodyadviceandmakedecisions.
learntoreadstatisticalgraphs
Similardialoguepresentationwithnewwordsandexpressionsusedwithin
II.Teachingaids:taperecorder,slides
StepIWarmingup
1.GroupWork:getSstoworkinpairs,andmakealistoffoodwhichhisgrandparentsandhisparentsandhimselfliketoeat.ThenSsfindoutthedifficultyamongthem.
NameBreakfastSnacksLunchDinner
Grandma/grandpa
Mother/father
yourself
2.letSslookatthechartinthebook,andaskthemsomequestions:
T:“Whatthegraphisabout,lookatthewordsaboveorbelowthegraph?”
Ss:“Growthofmajorproducts1991-95comparedwith1986-90percentages”
T:“Whatkindoffoodwereshownonthechart?”
Ss:“Therearegrain,cotton,oil,sugar,meat,fish,fruit.”
T:“Whatisshownonthey-axis?”
Ss:“thepercentageinSB”
3.letSsanswerthefollowingquestionsinthebook.Ifpossible,studentscandiscusthreequestionsingroups.
Question1:Howarepeople’seatinghabitschangingovertheyears?Whydoyouthinkthishappens?
(earnmoremoney;learnabouthealthyfood;eatmorenutritiousfruitjuices;eatmorefishandmeat,etc.)
Question2:Howhasagriculturalproducechangedduringtheseyears?Whatdoyouthinkcausedthesechanges?
(variousfarmingproducts;makemoremoney;newandadvancedfarmingtechnique,etc.)
Question3:Whateffectsdoyouthinkthechangesineatinghabitswillhaveonagricultureornature?
(peopleneedmoremeatandfruits;farmersneedmorefarmlandtogrowdifferentcropsandproducedifferentfoods;farmersneedtoraisemorepoultry(家禽),etc.)
4.Teachersumupinafewwords
T:“Inwords,changesinagriculturalproduceshowsthatourlivinghabitandeatinghabithasimproved.Farmershaveadifferentandhappylifebecausetheycangrowdifferentcroptomeetpeople’sneed.”
StepIIListening
1.lead-in
T:“Ioftenfindtheexpression‘returngrainplotstoforestry’innewspapers,doyouknowwhatdoesitmeaninChinese?”(teacherwritetheexpressionontheblackboard)
Ss:“InChinese,‘退耕还林’.”
T:“Whydoyouknowfarmersshoulddoso?”
Ss:“Theymustprotectforests./inordertoprotectforests.”
T:“HaveyouevenhadexperienceofsandstorminBeijing?howaboutsandstorm?”
Ss:“yes,itissoterribleweather.”
T:“Whatcausesandstorm?”
Ss:“Manyforestsaredestroyed,theenvironmentalproblemsisserious.”
T:“Howcanfarmersmakethelandfertile?”
Ss:tousechemicalfertilizerstoimprovethesoil.
…
2.Tintroduce:“Wewillhearashorttext.Thelisteningtextisaboutthehistoryoffarming,someofitsproblemsandsomesolutionsoralternativestotheseproblems.”
3.letSslistentothetapethefirsttime,withouttakingnotes.Then,askthemtolookatExercise1.Makesuretheyunderstandallthewords.Then,askthestudentstolistenagain,andticktheitemsthelisteningtextisabout.
4.letSslistentothetapeagainandaskthemtofinishExercise2.
5.getSslistentothetapeforthirdtimeandfillintheblankintheExercise3.
6.Iftimepermitted,teachercangetSstolistenanotherlisteningtextanddosomeexercises.
7.Iftimepermitted,teachergetSstofinishtheexercisesinWorkbook/Listening(page107)
StepIII.Speaking
1.GroupWork:getSstoworkingroupsanddivideSsintogroupsoffive.Eachgroup,eachtopic.Letthemactaseachrole.Anddiscusswhyweshouldgrowwheat/sugarcane/wheat/treesorraisepigs.
2.letSsmakesentencesusingthefollowingexpressions:
Inmyopinionyoushould…
IfIwereyou…
AsfarasIcanseethebestthingwouldbeto…
Wouldn’titbebetterif…?
Ithinkheisright…
Wehavetomakeachoice…
Wecan’tdoboth,so…
Theotherideasoundsbettertome…
3.Talking(Workbook,page108)
①letSsworkinsmallgroupsoffiveandassignanyofthethreetopictothegroups
②giveSstimetoreadthethreedescriptionsandaskquestionsaboutthem.
③askSstodiscusstheseissuesinawaythattheydevelopandgivetheirownopinionabouttheissuesathand.
StepIV.Summary
Teacherexplainsomelanguagepointsinthebook
ⅰ.whatdoyouthinkcausethesechanges?
①doyouthink是插入语,经常位于疑问词(组)后,如
Wheredoyouthinktheoldladyis?
有时也可以放在句尾。例如:
Whatisit,doyouthink?
②causev.=bethecauseof(sth);makehappen造成(某事物);使发生
如:Smokingcancauselungcancer.吸烟可导致肺癌。
She’salwayscausingtroubleforpeople.她总是给人添麻烦。
ⅱ.Makeadecision“做决定,决定”
如:ImakeadecisiontolearnEnglishhard.
Becauseofbadweather,theymakeadecisiontoputoffthemeeting.
ⅲ.Youwanttousethelandinthebestwaypossibleanddothebestforeverybodyinthevillage为了村里的每一个人,你想尽自己最大的努力,以最好的方法来使用这块地。
Inthebestwaypossible尽能最好的方法。Possible表示“尽可能最……”
dothebest表示“尽力”。如:
Shedothebesttohelptheoldlady.她尽力地帮助这个老妇人。
StepVExercise
1.finishtheexercisesinWorkbook,page108.
2.letSsfinishthefollowexercises.(showslides)
1.Hesaidhewasgoingto____alotofpigsonhisfar.(B)
A.riseB.keepC.growD.support
2.Myfatherstudies______inhissparetime.(C)
A.farmB.farmerC.farmingD.tofarm
3.Heis______interestedinEnglish.Heoftenworksatituntil______intothenight.(A)
A.deeply;deepB.deep;deeplyC.deep;deepD.deeply;deeply
4.They____chickens,cattleandcropsaswellonthefarm.(A)
A.raiseB.feedC.keepD.bringup
5.MybrotherstayedathomestudyingEnglish____goingtothecinema.(B)
A.insteadB.insteadofC.withoutD.didn’t
6.Theaccidentwasmyfault,soIhadtopayforthedamage____theothercar.(C)
A.ofB.atC.toD.on
7.Theoldmanisstillsufferingfrompain.Itseemsthatthemedicinehas_____him.(B)
A.noeffecttoB.isusedfor
C.someeffectin D.agoodeffecton
8._____shouldamanhavecourage,______heshouldhavewisdomandknowledge.(D)
A.Neither…norB.Both…andC.Either…orD.Notonly…butalso
9.Hetalkedabouthiswonderful____inAfrica,buthesaidhedidn’thave_____indealingwithsomeproblemshemetthere.(A)
A.experiences…muchexperience
B.experience…manyexperiences
C.experiences…manyexperiences
D.experience…muchmoreexperience
10.Alibrarywithfivethousandbooks_____tothenationasagift.(A)
A.isofferedB.haveofferedC.areofferedD.hasoffered
一位优秀的教师不打无准备之仗,会提前做好准备,高中教师在教学前就要准备好教案,做好充分的准备。教案可以让学生更好地进入课堂环境中来,使高中教师有一个简单易懂的教学思路。所以你在写高中教案时要注意些什么呢?以下是小编为大家收集的“Unit19Modernagriculture第三课时教案”欢迎大家与身边的朋友分享吧!
Unit19Modernagriculture第三课时教案
I.Teachingaims:
learntouse“it”forEmphasis.
Similardialoguepresentationwithnewwordsandexpressionsusedwithin
II.Teachingaids:slide,pictures
StepIRevision
StepIIwordstudy
FinishtheexercisesinStudentbook,page47.
StepIIIPractice
LetSsfinishtheexercises“vocabulary,1-3”inpage108,Workbook
StepIVGrammar
1.giveSssomesentencestotranslateintoChineseandfindoutdifferenceandsamenessamongthesesentences(slideshow)
Itisonthisarablelandthatthefarmersproducefoodforthewholepopulationofchina.
Itwasfromtheearly1990sthatscientistsstartedtodevelopnewtechniquestoincreaseagriculturalproductionwithoutharmingtheenvironment.
Itwastheywho/thatcleanedtheclassroomyesterday.
ItwasinthestreetthatImetherfather.
Itwasthegoat’seyesthathehadseeninthedarkness.
2.teachSstofindoutthephrasefromthesentenceabove----Itis+被强调部分+that/who…
TranslatethefollowingsentencesintoEnglish:
1.写这本书的人就是玛丽。ItisMarywhowrotethisbook.
2.这个就是长满了美丽的鲜花的花园。Itisgardenthatmanybeautifulflowersgrowin.
3.她就是擅长唱歌的女孩。Itisagirlwhoisgoodatsinging.
4.那就是他叔叔移居纽约的季节。ItwasforthisreasonthathisunclemovedoutofNewYork.
5.错的人是我。ItisIwhoamwrong.
4.note:
a.在强调句型中,若被强调部分指人,可以用关系代词who或that;若被强调的是状语,只能用that,不能用when或where。
b.注意与“Itis/was…that+clause”主语从句的区别。
强调句型与it作形式主语,that从句作真正主语十分相似,但主语从句中Itis/was后通常用名词或形容词作表语。强调句型中Itis/was后是对主语、宾语或状语的强调成分。
5.letSsfindoutsomesentencewith‘it’inthetext‘ModernAgriculture’.
ItisonthisarablelandthatthefarmersproducefoodforthewholepopulationofChina.(paragraph1)
Itwasfromtheearly1990sthatscientistsstartedtodevelopnewtechniquestoincreaseagriculturalproductionwithoutharmingtheenvironment.(paragraph2)
ItwasdevelopedusingatechniqueknowasGM.(paragraph4)(itisnotforEmphasis)
3.exercises
letSsfinishtheexercisesinStudent’sbook,page47-48,Exx1-2.
letSsfinishtheexercisesinWorkbook,page109,Exx1-3.
Finishalltheexercisesinthebook.
Reading
第一步:预读,教师事先设计导读性问题,要求学生通过解读标题和插图,阅读文章的开头和结尾,在最短的时间内作答,然后用三两句话概括大意。
Question1(canrefertoP67Speakingtask)
Youaretochooseeightthingstoputintoyourpersonalearthquakebag.Whatarethey?
Question2(thesignbeforeanearthquake)
Canyoudescribethepicturesinpre-readingindetails?
Question3DoyouknowanythingaboutTangshanEarthquake?
第二步:略读,要求学生全文通读,忽略不懂的生词,但是要求分辨出各个段落的大概意思。然后完成课后的第三题。
Mainideas
1.Whathappenedbeforetheearthquake.
2.TheearthquakedestroyedthecityofTangshanandshockedthepeople.
3.Thedamagesoftheearthquake
4.Thearmycametohelpthesurvivors,bringinghopeforanewlife.
第三步:在详细阅读之前提示关于唐山大地震的背景:struckat3.42am.onjuly28,1976;7.8magnitude;epicenterwas11kmbelowthecityofTangshan;242419peoplekilled;economicdamageofthoseburiedintherubblewererescued;injuriesfromtheearthquakecaused2.200peopletobecomeparaplegics.
第四步:要求学生边读边完成课后的第一题,第二题。其中,第一题连接句子不但是对课文内容的考察,也是对英语句子逻辑性和语法的一个联系,在学生回答的事情应该引导他们注意这两点。
另外,教师可以设计一些需要查找的信息和具体事实的问题或任务:
(参考)
1.WhythetitleisANIGHTTHEEARTHDIDNTSLEEP?
Suggestedanswer:nightisthetimetosleep,andnightshouldbesafeandquiet.Butthatnighteverythingchanged.Thewriterusethistitletoshowhowterribleandhowusualthenightwas.
2.Whatdoesthesentence“Slowly,thecitybegantobreatheagain”mean?
Suggestedanswer:thewritercomparethecitytoapersonwhosufferedalotinthedisaster.Hefeltherpain.Sowhenpeoplecametohelpher,hefeelthecitywillnotdie,shehashopeandshecanrecoverfromthepain.
要求学生带着问题快速浏览文章,从阅读材料中,迅速查找这些特定的信息和具体的事实。
第五步:要求学生运用语境猜测词的意思,把不认识的单词用简单的语句表述出来,分组讨论学习黑体字单词及词组的意思和用法。
Homework
小组活动,分工整理和讲解重点句型和难点。
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