【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----s
ellborrow----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.TheHarryPorterb
ooksprettypopularsincetheywerepublished.A.becomeB.willbecomeC.havebecomeD.arebecoming()2.Thevolunteersalotofhelptothecommunityfornearlytenyears.A.of
feredB.willofferC.areofferingD.haveoffered()3.Look!Thesnow.Let’sgoouttomakeasnowman.A.stopsB.hasstoppedC.isstop
pingD.stopped()4.Mr.Brownisnotinhisoffice.Hethelibrary.A.willgotoB.isgoingtoC.hasbeentoD.hasgonetoII、句型转换1.Thefilmbeganfiveminutesago
.=Thefilmforfiveminutes.2.Sam’sgrandpadied3yearsago.=Sam’sgrandpafor3years.3.Mybrotherjoinedthearmy2yearsago.=Mybrot
herthearmyfor2years.4.AlicebegantolearnChinesewhenshewastenyearsold.=AliceChineseshewastenyearsold.5.Thegirlhasalreadyfinishedherhomework.(改为
否定句)Thegirlfinishedherhomework?6.Thestudentshavegonetothelibrary.(改为反意疑问句)Thestudentshavegonetothelibrary,?7.Mymotherhasbeenadoctorfor15years.(
划线部分提问)hasyourmotherbeenadoctor?8.HehasneverbeentotheGreatWall.(改为一般疑问句)hebeentotheGreatWall?