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1、柳树0中学10-11学年度第二学期“教学案一体化”讲学稿课题Unit9Whenwasitinvented?SectionA(1a-2c)学科英语课型New主备人翟妍审核人李玲婷婷宗涛课时设置1课时使用时间2013.12.5学习目标1.掌握下列新单词和词组:invent,calculator,beusedfor,scoop,adjustable,heel,battery,operate,battery-operated,slipper,heat,2.学会新句型：Whenwasthecarinvented?Itwasinventedin1885.Who
2、weretheyinventedby?TheywereinventedbyJulieThompson.学习重点：被动语态学习难点：主动语态变被动语态学习过程第一环节：预习导学探究质疑Step1Reviewthepronunciationoftheyearsbyyourselves.186519892000200118001900Step2Learnnewwords.inventcalculatoradjustableheelsbatteryoperateslipperheatscoopStep3Lead-inReadandguesswhatinve
3、ntionitis.Whatotherinventionscanyouthinkup?Step4GroupworkLookatthethings.Inwhatorderdoyouthinktheywereinvented?A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.第二环节：分组合作互动释疑Step51.Doyouknowwhentheywereinvented?Listento1b,a
4、ndthenpracticetheconversationsinpairs.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.2.Lookandsaywhothetelephonewasinventedby,thenmatchtheinventorswiththeinventions.3.Asweknow,therearefourgreatinventionsinChina.Whatarethey?Whoweretheyinventedby?4.Wehaveintroducedsom
5、anygreatinventions,thenwhataretheyusedfor?Makeaconversationwithyourpartnerlikethis:A:Whatisthetelephoneusedfor?B:Ithinkit’susedfortalkingwithpeople.5.Listento2aand2b.6.Lookatsomeinterestinginventionsandguesswhattheyareusedfor.Step5Grammar-learning1.Passivevoice被动语态Bellinvented
6、thetelephonein1876.ThetelephonewasinventedbyBellin1876.结论：英语中动词有语态和语态两种语态。语态表示主语是动作的执行者，教师修改及学生笔记语态表示主语是动作的承受者，在被动语态中动作的执行者有时用短语表示出来。被动语态谓语动词的构成：+一般现在时//+一般过去时//+主动语态变被动语态的步骤Bellinventedthetelephone(in1876).ThetelephonewasinventedbyBell(in1876).结论：1.把原句中的转换为被动句的；2.把动词改为形式，即“+”
7、。注意be动词要按新的主语的人称和进行变化，要和原来的主动句的保持一致。3.原来主动句中的主语，如果有需要，就放在后面，如果主语是代词，要以它的形式出现。如果没有必要可以省略，其他的成分（定语、状语）不变。请把下列的主动句变为被动句：1.Jackwaterstheflowerseveryday.→TheflowersbyJackeveryday.2.Marysenttwoe-mailsyesterday.→Twoe-mailsbyMary.3.Theyshouldwearuniformsatschool.→Uniformsatschool.4.Ii
8、nventedanewpen.→Anewpenby.5.Hedidn’tseethefilmlastnight..2.be
