Unit9Whenwasitinvented?学案
SectionA
教师寄语:It’snevertoolatetomend.亡羊补牢,犹为未晚。
学习目标:
学习一般过去时的被动语态和特殊疑问句。
教学重难点:
一般过去时态的被动语态
基本结构:助动词be(was/were)+及物动词的过去分词
Athiefwascaughtlastnight.
Theywereaskedtospeakatthemeeting.
肯定式:Itwasmade.
否定式:Itwasnotmade.
疑问式:Wasitmade?No,itwasn’tYes,itwas
学习过程:
1.情境导入:warm-up
Askthestudentstobefamiliarwiththewordsbelowaccordingtothepicturesoncomputer.
Telephone,calculator,car,personalcomputer,TV,electriclight,lightbulb,alarm,clock,microwaveoven,electricslipper.
2.自主学习:presentation
1)教学Whenwasthecarinvented?Itwasinventedin……
Choosethethreeinventionsoftheseandaskstudentstoguesswheneachonewasinvented.
Forexample,youmightchoosecar,telephone,andpersonalcomputer.
Haveseveraldifferentstudentsguessandwritethedatesontheboard.Asktheclasstorepeatthequestionsandanswers.
[T=Teacher,S=Student]
T:Whenwasthecarinvented?(Classrepeat.)
T:Good.NowJackie,whatwasyourguess?
S1:1900
T:OK.Jackie,repeatafterme.Thecarwasinventedin1900.
Repeattheprocesswithseveraldifferentinventions.
Atlast,makestudentsfindouttherealdates.
2)教学Whowerethelightbulbsinventedby?Andwhataretheyusedfor?
呈现Edisonandlightbulbs的画面。
TellthestudentsEdisoninventedlightbulbs.
Thenaskthestudentstoanswerthequestionsbelow.
T:Whowerelightbulbsinventedby?(Classrepeat)
T:Good.NowClassrepeatafterme.TheywereinventedbyEdison.
3.合作探究:
1)教学操练1a,1c,2c
学生看书本上1a的图画,根据图画,把1a,1c,2c中的语言点综合起来,叫学生相互间回答问题。并用刚刚学到的目标句型来操练。最后,抽查几对学生,让他们在全班面前,按要求进行对话。
2)教学1b,2a,2b
首先,帮助学生明确本题的要求。接着,听力练习,学生根据录音内容完成1b,2aand2b.
最后,重放一遍录音内容,学生跟读。
4、拓展创新:
ConsolidationandExtension.
完成一个任务
Asksomestudentstoreadaboutaninventionusinganencyclopediaorotherbookfromthelibrary,orbylookingupinformationontheInternet.Havethestudentswriteupashortreportanddrawasimplepictureoftheinventionorbringinaphotoofit.Askeachstudentstoshowthepictureandreadhisorherreporttotheclass.
5.梳理知识:本单元主要学习了一般过去时的被动语态,包括其结构与用法。利用几项发明创造练习这一知识,最后用一篇小报告来完成写作练习。
6.达标测试:
(一)根据时间和人物写出发明物。
1)1885____________2)1876________________3)1927____________
4)1976________________5)JulieThompson_________6)ChelseaLanmon______
(二)汉泽英
1)计算机是何时发明的?
2)谁发明了计算机?
3)计算机是用来做什么?
4)你认为什么是最有用的发明?
5)它能够给人们更多时间工作和玩。
典型例题解析:
1.--Whataniceclassroom!--It____everyday.
A.iscleaningB.hascleanedC.mustcleanD.iscleaned
解析:推测这句话的意思应该是“它每天都被打扫”,考查被动语态的结构be+动词的过去分词。因此答案应该选D。
2.IknowBeijingwell.I____therethreetimes.
A.willgoB.havebeenC.wentD.havegone
解析:推测这句话的意思“我很了解北京,我去过那三次”。表示去过应该采用的时态是现在完成时,因此可排除A和C,区别havebeen和havegone,havebeen去过;havegone去了(还没回来)。因此应该选择B。
中考连接:
1.--Lookatthesignontheright.--Oh,smoking____here.
A.doesn’tallowB.isn’tallowedC.didn’tallowD.wasn’tallowed
2.--Willyoucometothedinnerparty?--Iwon’tcomeunlessJim______.
A.can’tbeinvitedB.wasinvitedC.willbeinvitedD.isinvited
课后反思:
说一说这节课你学到了什么知识?
Unit9Whenwasitinvented?
SectionB
教师寄语:Virtuenevergrowsold.美德永不老。
学习目标:
1、熟练掌握被动语态用法。
2、学会用被动语态表达对创造和发明事物的认识和看法。
教学重难点:主动语态被动语态
1.主动结构的宾语变为被动结构的主语;
2.主动结构的谓语动词由主动语态变为被动语态;
3.主动结构的主语变为介词by的宾语,组成介词短语,放在被动结构中谓语动词之后。在动作的执行者无须说明或不必强调时,by短语可以省略。
4.主动语态、被动语态两种时态要保持一致:
Werepairedthemotor.
Themotorwasrepairedbyus.
教学过程:
1.情境导入:Warm–up:
Askthestudentstopracticespeaking.
A:Whenwas……invented?
B:Itwasinventedin……
A:Whowasitinventedby?
B:Itwasinventedby……
A:Whatisitusedfor?
B:Itisusedfor……
2.自主学习:Presentation.
1)教学helpful,annoying
Askstudentstogivesomeexamplestoshowwhateachwordmeans.Forexample.
Avacuumcleanerishelpful.Averyloudtruckisannoying.
2)教学3a
呈现alarmclock,lightbulb,microwaveover,tea,andsoon的画面。Thenaskthestudentsthefollowingquestions.
T:Isthelightbulbusefulorannoying?(Opinionsmaydiffer.)
S1:Ithinkit’suseful.
T:Whyisit?
S1:Well,itgivespeoplemoretimetoworkandplayeveryday.
Thenaskthestudentstomakealistoffivehelpfulinventionsandfiveannoyinginventionsontheirown.Givetheclassaboutfiveminutestodothis.
3.合作探究:教学操练3b
Askthestudentstoworkinpairthefollowingtalkusingthetargetlanguage.
A:Whatdoyouthinkisthemosthelpful/annoyinginvention?
B:Ithinkthemosthelpful/annoyinginventionis……
A:Whyisthat?
B:Well,itgivespeople……
4.拓展创新:ConsolidationandExtension
Imaginethatyouarealoneonatinyisland,Choosefiveinventionsyouwouldliketohaveontheislandwithyou.Tellthegroupwhatyouchoseandwhy.
5.梳理归纳:
本节课主要的内容是主动与被动语态的练习转换。
6.达标测试:
句型转换
1.Shewasseentocomeoutofthelibrarybyhim.(变被动语态)
2.Whenaretreesoftenplanted?(变被动语态)
3.TheLeaguewasfoundedinGuangzhouin1922(就画线部分提问)
4.Didthestudentsweartheschoolclothesalot?(变被动语态)
5.Katetookgodcareofthebabyyesterdayevening.(变被动语态)
6.Hisauntboughthimabicycle.(变被动语态)
7.Hisauntboughthimabicycle.(变被动语态)
典型例题解析:
1.老人们被照顾地很好。Theold____________afterwell.
解析:这个题主要考查被动语态的结构be+动词的过去分词和应用,在本题中应该是belookedafter.
2.Youcanusethebox______thetoys.
A.carryB.carryingC.tocarryD.carried
解析:在这个题目考查一个短语的应用usesthtodo利用某物做某事,因此答案为C。
中考连接:
1.AlthoughTomfailedthegame,_____hesaidhewouldtryagain.
A.B.andC.butD.because
2.Imustpractice_____English,becauseit’simportantwhiletalkingwithaforeigner.
A.speakB.tospeakC.speakingD.speaks
课后反思:
想想这节课还有哪些知识没掌握?
Unit9Whenwasitinvented?学案一、学习目标:掌握一般现在时、一般过去时和含有情态动词的被动语态的用法。二、语法介绍:英语中动词的语态分成两种:主动语态和被动语态。当句子的主语是动作的执行者时,谓语的形式叫主动语态;当句子的主语是动作的承受者时,谓语要用被动语态。㈠含义:动词的被动语态一般译成“被…”,但是根据汉语表达习惯,有时“被”也可以不译出。㈡构成:被动语态一般的构成形式为:be+动词过去分词(+by+动作的发出者)。其中助动词be有人称、数和时态的变化。一般现在时:am/is/are+done(过去分词)一般过去时:was/were+done(过去分词)含有情态动词的:情态动词+be+done(过去分词)㈢方法:1、将主动语态句中的宾语变为被动语态句中的主语,主动语态句中的主语变为被动语态句中介词by的宾语。2、将主动语态句中谓语动词变成:助动词be+该动词的过去分词,但时态不改变。3、助动词be要与新的主语保持单、复数一致;若主语和宾语是人称代词时,“格”应作相应的变化。口诀:宾变主,主变宾,谓变bedone时不变,数格必须随着变。Theworkersmakemachinesinthisfactory.!--?xml:namespaceprefix=vns="urn:schemas-microsoft-com:vml"/--
Machinesaremadebytheworkersinthisfactory.注意:不及物动词没有被动语态。㈣例句:1.ManypeoplespeakEnglishin!--?xml:namespaceprefix=st1ns="urn:schemas-microsoft-com:office:smarttags"/--China.EnglishisspokenbymanypeopleinChina.2.Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.3.Wemustlookafertheoldman.Theoldmanmustbelookedafter(byus).㈤特殊情况:⑴(含有双宾语的句子变被动语态)剖析:含双宾语的主动语态的句子变为被动语态时,常把那个指人的间接宾语变为被动语态的主语;也可把那个指物的直接宾语用作主语,但此时必须在间接宾语前加上介词to或for。如:Hegavemeabook.→Iwasgivenabookbyhim.→Abookwasgiventomebyhim.口诀:如遇双宾语,一般变间宾。若把直宾变,to,for间宾连。⑵感官动词和使役动词在主动句中其后的动词不定式不带to,但变被动句时必须加上to。如:Thebossmadeherworkfor16hoursaday.→Shewasmadetoworkfor16hoursaday.口诀:感/使动词真叫怪,to来to去记心怀,主动语态to离去,被动语态to回来。三、对应练习:㈠选择填空1.Thechildren____bythenurse.
A.werelookedB.lookedafterC.werelookedafterD.looked2.Thelab____aboutfiveyearsago.
A.wasbuildedB.wasbuiltC.buildsD.hasbeenbuilt3.Theglass______.It_____bylittleTomthismorning.
A.broke,isbrokenB.isbroken,wasbroken
C.wasbroken,brokeD.hasbeenbroken,broken4.I______thewaytotherailwaystationbyapoliceman.
A.wasshownB.showedC.haveshownD.wasshowing
Whenwater______,itwillbechangedintovapour.
A.isheatedB.heatingC.hasheatedD.heats5.Wecantentertheroombecauseitsdoor______.
A.lockedB.locksC.islockedD.islocking
6.They______dayandnight.
A.aremadeworkB.aremadetowork
C.madetobeworkedD.aremakingtowork7.ChanganRoadis______ofpeople.
A.filledB.fillC.fullD.fulled
8.ThisEnglishsong_____often_____bythechildren.
A.is,singingB.is,sungC.will,singD.was,sung
9.Thewindowsofourhouse_____onceaweek.
A.mustcleanB.havecleanedC.iscleanedD.arecleaned10.When______thePeoplesRepublicofChina_____?
A.was,foundB.was,foundedC.did,foundD.does,found11.Marysradio______bymybrotherjustnow.
A.willbemendedB.hasmendedC.wasmendedD.mended12.Yourexercisebooks_____afterclass.
A.willhandinB.musthandinC.handedinD.mustbehandedin
13.Thesun_____atnightasusual.
A.canbeseenB.cantseeC.cantbeseenD.doesntsee14.Rice___also_____intheirhometown.
A.is…grownB.is…grewC.was…grewD.was…grown15.He____bytheteachers.
A.isalwayspraisedB.praises
C.havebeenpraisedD.alwaysispraised㈡把下列句子变成被动语态1.Youcanfindalotofdifferencesbetweenthetwolanguages.2.Doyouwateryourflowerseveryday?3.Thewindblewdownthebigtreelastnight.4.Nobodyknewmeinthistownatthattime.5.Weplantedmanytreesinourschoollastweek.6.DopeoplegrowcottoninNorthChina?7.Whoinventedthelightbulb?8.Didtheyfindthemissingkeyyesterday?9.Weheardsomeonesinginthenextroom.10.Shedrewthemapictureyesterday.
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