【文档说明】《Unit 2 Life in the future》PPT课件4-九年级下册英语【牛津上海版】.ppt,共(8)页,105.000 KB,由小喜鸽上传
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现在完成时九年级(下)册上海教育出版社一、概念现在完成时表示:1、过去发生的动作或存在的状态对现在造成的影响或结果。2、过去已经开始,一直持续到现在的动作或状态。二、基本结构have/has+done其中have/has是助动词,done是动词过去分词。注:在改为一般疑问句时,把
have/has提前到句首;在改为否定句时,在have/has后加not。三、时间状语或关键词1、already,yet,just,ever,never,before等。2、for+时间段,since+过去的时间。
(对此结构划线提问用Howlong)3、sofar,uptillnow(到目前为止)4、inthelast/past+时间段(在过去的多长时间里)四、常见的短暂性动词come----gobuy----sellborrow----lendopen--
--closedie,begin,become,join,end,leave等注:havebeento也不能与for+时间段连用。五、专题训练I、选择题()1.TheHarryPorterbooksprettypopularsincethey
werepublished.A.becomeB.willbecomeC.havebecomeD.arebecoming()2.Thevolunteersalotofhelptothecommunity
fornearlytenyears.A.offeredB.willofferC.areofferingD.haveoffered()3.Look!Thesnow.Let’sgoouttomakeasnowm
an.A.stopsB.hasstoppedC.isstoppingD.stopped()4.Mr.Brownisnotinhisoffice.Hethelibrary.A.willgotoB.isgoingtoC.hasbeentoD.h
asgonetoII、句型转换1.Thefilmbeganfiveminutesago.=Thefilmforfiveminutes.2.Sam’sgrandpadied3yearsago.=Sam’sgrandpafor3
years.3.Mybrotherjoinedthearmy2yearsago.=Mybrotherthearmyfor2years.4.AlicebegantolearnChinesewhenshewastenyearsold.=AliceChineseshewastenye
arsold.5.Thegirlhasalreadyfinishedherhomework.(改为否定句)Thegirlfinishedherhomework?6.Thestudentshavegonetothel
ibrary.(改为反意疑问句)Thestudentshavegonetothelibrary,?7.Mymotherhasbeenadoctorfor15years.(划线部分提问)hasyourmotherbeenadoctor?8.Hehasneverbeento
theGreatWall.(改为一般疑问句)hebeentotheGreatWall?