九年级英语全册 unit 9 section b精编学案 人教新目标版

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1、英语：Unit9SectionB精编学案（人教版九年级）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.Themotorwasrepair

2、edbyus.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,annoyingAskstudentstogivesomeexamplestoshowwhateachwordmeans.Forexample.Avacuum

3、cleanerishelpful.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.Thenaskth

4、estudentstomakealistoffivehelpfulinventionsandfiveannoyinginventionsontheirown.Givetheclassaboutfiveminutestodothis.3．合作探究：教学操练3bAskthestudentstoworkinpairthefollowingtalkusingthetargetlanguage.A:Whatdoyouthinkisthemosthelpful/annoyinginvention?B:Ithinkthemosthelpful/annoyinginventi

5、onis……A:Whyisthat?B:Well,itgivespeople……4.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1.Shewasseentocomeoutofthelibrarybyhim.（变被动语态）2

6、.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____________

7、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.because2.Imustpractice_____English,beca

8、useit’simportantwhi