学习实践Unit 9 When was it invented学案.docx

1、学习实践Unit 9 When was it invented学案Unit 9 When was it invented?学案Unit9whenwasitinvented?学案SectionA教师寄语：Itsnevertoolatetomend.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：was

2、itmade?No,itwasntyes,itwas学习过程：.情境导入：warm-upAskthestudentstobefamiliarwiththewordsbelowaccordingtothepicturesoncomputer.Telephone,calculator,car,personalcomputer,TV,electriclight,lightbulb,alarm,clock,microwaveoven,electricslipper.2.自主学习：presentation)教学whenwasthecarinvented?Itwasinventedinchoosethet

3、hreeinventionsoftheseandaskstudentstoguesswheneachonewasinvented.Forexample,youmightchoosecar,telephone,andpersonalcomputer.Haveseveraldifferentstudentsguessandwritethedatesontheboard.Asktheclasstorepeatthequestionsandanswers.T=Teacher,S=StudentT:whenwasthecarinvented?T:Good.Nowjackie,whatwasyourgue

4、ss?S1:1900T:ok.jackie,repeatafterme.Thecarwasinventedin1900.Repeattheprocesswithseveraldifferentinventions.Atlast,makestudentsfindouttherealdates.2)教学whowerethelightbulbsinventedby?Andwhataretheyusedfor?呈现Edisonandlightbulbs的画面。TellthestudentsEdisoninventedlightbulbs.Thenaskthestudentstoanswertheque

5、stionsbelow.T:whowerelightbulbsinventedby?T:Good.Nowclassrepeatafterme.TheywereinventedbyEdison.3.合作探究：)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：consolidationan

6、dExtension.完成一个任务Asksomestudentstoreadaboutaninventionusinganencyclopediaorotherbookfromthelibrary,orbylookingupinformationontheInternet.Havethestudentswriteupashortreportanddrawasimplepictureoftheinventionorbringinaphotoofit.Askeachstudentstoshowthepictureandreadhisorherreporttotheclass.5.梳理知识：本单元主

7、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。)1885_2)1876_3)1927_4)1976_5)julieThompson_6)chelseaLanmon_（二）汉泽英)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：.-whataniceclassroom!-It_everyday.A.iscleaningB.hascleanedc.mustcleanD.iscleaned解析：推测

8、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：.-Lookatthesignontheright.-oh,smoking_here.A.doesntallowB.isntallo

9、wedc.didntallowD.wasntallowed2.-willyoucometothedinnerparty?-Iwontcomeunlessjim_.A.cantbeinvitedB.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：、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

10、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：.情境导入：warmup:Askthestudentstopracticespeaking.A:whenwasinvented?B:ItwasinventedinA:whowasitinventedby?B:ItwasinventedbyA:whatisitusedfor?B:Itisusedfor2.自主

11、学习：Presentation.)教学helpful,annoyingAskstudentstogivesomeexamplestoshowwhateachwordmeans.Forexample.Avacuumcleanerishelpful.Averyloudtruckisannoying.2)教学3a呈现alarmclock,lightbulb,microwaveover,tea,andsoon的画面。Thenaskthestudentsthefollowingquestions.T:Isthelightbulbusefulorannoying?S1:Ithinkitsuseful.T:

12、whyisit?S1:well,itgivespeoplemoretimetoworkandplayeveryday.Thenaskthestudentstomakealistoffivehelpfulinventionsandfiveannoyinginventionsontheirown.Givetheclassaboutfiveminutestodothis.3合作探究：教学操练3bAskthestudentstoworkinpairthefollowingtalkusingthetargetlanguage.A:whatdoyouthinkisthemosthelpful/annoyi

13、nginvention?B:Ithinkthemosthelpful/annoyinginventionisA:whyisthat?B:well,itgivespeople4.拓展创新：consolidationandExtensionImaginethatyouarealoneonatinyisland,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.Shewasseentocomeo

14、utofthelibrarybyhim.（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：.老人们被照顾地很好。Theold_a

15、fterwell.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：.AlthoughTomfailedthegame,_hesaidhewouldtryagain.A.B.andc.butD.because2.Imustpractice_English,becauseitsimportantwhiletalkingwithaforeigner.A.speakB.tospeakc.speaking.speaks课后反思：想想这节课还有哪些知识没掌握？