初中被动语态课件(定稿).ppt

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1、被动语态寿春中学HowtodescribethepicturesTheriverwasseriouslypolluted.Sometreeswerecutdown.语态是动词的一种形式，表示主语和动词之间的关系。英语动词有两种语态：主动语态和被动语态。主动语态动词的主语是动作的执行者，而被动语态动词的主语是动作的承受者。被动语态是动词的一种特殊形式，一般说来，只有需要动作对象的及物动词才有被动语态。英语语态被动语态的构成由助动词be+及物动词的过去分词（V-ed）构成。助动词be有人称、数和时态的变化。waterwateredwa

2、tereduseusedusedstudystudiedstudiedstopstoppedstoppeddodiddonerideroderiddenForexamplefindfoundfoundmakemademadebuildbuiltbuiltsweepsweptswepttaketooktakenbuyboughtboughthavehadhadsingsangsungtelltoldtoldgivegavegiven英语的谓语动词有两种语态WespeakEnglish.主语谓语宾语Englishisspokenbyu

3、s.主语谓语宾语宾变主,主变宾,前加by动变被,看清be,结构分别be+pp主动语态被动语态主变被解题步骤:1.找宾语----即动作的承受者Theymakeshoesinthatfactory.Shoes2.判断宾语的单复数----即be动词的单复数.arewere3.判断动词的时态----即be动词的时态.4.修改谓语的时态----即原句动词改为过去分词made5.修改原句的主语----即by+主语/宾语.bythem.1.一般现在时am/is/are+doneWecleantheclassroomeveryday.Thecla

4、ssroomiscleanedbyuseveryday.Shewaterstheflowerseveryday.TheflowersWhatdoesshedoeveryday?everyday.arewateredbyherTheydotheirhomeworkafterschool.Theirhomeworkisdonebythemafterschool.Heplaysbasketballeveryweek.Basketballisplayedbyhimeveryweek.Mymothersweepstheflooreveryd

5、ay.Thefloorissweptbymymothereveryday.Iboughtacomputerlastterm．Acomputerwasbought(byme)lastterm.2.一般过去时was/were+doneHeputonacoat.Acoatwasputonbyhim.Jimrodethemotorbiketohisfactoryyesterday.Themotorbikewasriddentohisfactoryyesterday.Theyhadaneveningpartylastweek.Aneveni

6、ngpartywashadlastweek.TheGreatWallwasbuiltbyChinesepeoplemanyyearsago.ChinesepeoplebuilttheGreatWallmanyyearsago.Thestudentsplantedmanytreesyesterday.Manytreeswereplantedbythestudentsyesterday.3.现在进行时:am/is/are+being+V(p.p)Someworkersarepaintingtheroomsnow．Theroomsare

7、beingpaintedbysomeworkersnow.Iwasdoingmyhomeworkat8:00lastnight．Myhomeworkwasbeingdone(byme)at8:00lastnight.4.过去进行时：was/were+being+v(p.p)5.一般将来时shall/will/begoingto+bedoneHeisgoingtowritealettertohismother.Aletterisgoingtobewrittentohismotherbyhim.sendto,hospital,righ

8、tnowatalk,give,soonTheywillbesenttothehospitalrightnow.Atalkwillbegivensoon.I__________________(notinvite)totomorrow’sweddin