Passivevoice被动语态基本用法当句子的主语是动作的执行者时,谓语的形式是主动语态。当句子的主语是动作的承受者时,谓语要用被动语态。被动语态由助动词be+过去分词构成,时态通过be表现出来。1.规则动词的过去分词:1)一般情况在动词原形后加-edwatch---watched2)以不发音e结尾的加-dpractice---practiced3)以辅音加y结尾的,去y变i加-edstudy---studied4)以重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加-edstop---stopped2.不规则动词的过去分词:amisarebeenhavehashaddodonewritewrittengogoneHeplantstreesinspring.主谓宾(受动者)Treesareplantedbyhim改为被动语态inspring.主动语态变被动语态口诀:宾语提前主语变,原主变宾by后见,时态人称be关键。Tomwillcleantheroomtomorrow.主谓宾(受动者)TheroomwillbecleanedbyTomtomorrow.Hisbrotherwashesbowlseveryday.主谓宾(受动者)Bowlsarewashedbyhisbrothereveryday.1.Theymakeshoesinthatfactory.主语+及物动词+宾语Shoesaremade(bythem)inthatfactory.一般现在时:S(主语)+am/is/are+过去分词2.Theyboughttencomputerslastterm.Tencomputerswerebought(bythem)lastterm.一般过去时:S+was/were+过去分词3.AmycantakegoodcareofGina.GinacanbetakengoodcareofbyAmy.情态动词:S+can/may/must/should+be+过去分词4)情态动词:Therubbishcanbeputintothedustbinoverthere.4.Theywillfinishtheworkintendays.Theworkwillbefinished(bythem)intendays.一般将来时:S+will+be+过去分词5.Someworkersarepaintingtheroomsnow.Theroomsarebeingpaintedbysomeworkersnow.现在进行时:S+am/is/are+being+过去分词时态主动语态被动语态一般现在时V(原形)/V(e)sam/is/are+Vpp一般过去时V-ed/madewas/were+Vpp一般将来时will+V(原形)will+be+Vpp含情态动词情态动词+V(原形)情态动词+be+Vpp各种时态的被动语态构成一般现在时:一般过去时:情态动词:一般将来时:现在进行时:现在完成时:过去进行时:S+am/is/are+P.PS+was/were+P.P.S+can/may/must/should+be+P.P.S+will+be+P.P.S+am/is/are+being+P.P.S+have/has+been+P.P.S+was/were+being+P.P.二、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如:Itissaidthatonedayheclimbedtothetopofahouseand……ItwasreportedthathermotherdiedofSARS.众所周知……Itiswellknownthat…据推测说……Itissupposedthat…4)有些短语不用被动语态doone’sbest,makeaface,makeroom(腾位子),makeupone’smind,belongto不用被动语态的情况(考点)1)不及物动词不用被动语态;注意:happen,breakout,takeplaceThestorywashappenedin1934.(×)2)表状态的动词不用被动语态;have,lack,fit…Ihaveanewbike.3)连系动词不用被动语态;Thestoryissoundedtrue.(×)1)感官动词(taste;feel;smell;sound;look)用主动形式表示被动。Howsweetthemusicsounds!Goodmedicinetastesbittertothemouth.2)write、read、sell、keep、prove、weigh、number、drink、wear、pay、wash、open常用主动形式表被动意义。尤其是有副词well,easily时。Thebooksellswell.(这本书销路很好。)Thedoorwillnotopen.(这扇门就是打不开。)Thisdresswashesbetter.(这衣服较好洗。)Thesignreadsasfollows.(这牌子告示如下。)特殊情况(考试重点)3)need,demand,want(需要),require,beworth等后用动名词表被动。Thedeskneedsrepairing.Thenovelisworthseeing.注意:need后可接动名词表被动,又可接动词不定式的被动形式。但若有附加成分有用动词不定式的被动形式。比较:Thedeskneedsrepairing.Thedeskneedstoberepaired.4)注意动名词的被动形式,(beingdone)Nobodylikesbeinglaughedof.没人喜欢被嘲笑。1.Peopleuseknivesforcuttingthings.Knives____________forcuttingthings.2.Thestudentscleanthewindowsoftheirclassroomtwiceamonth.Thewindowsoftheirclassroom_____________twiceamonth.areusedarecleaned(变被动语态)3.Ifoundtheticketonthefloor.________________________onthefloor.4.Itoldhertoreturnthebookintime.She_____________toreturnthebookintime.Theticketwasfoundwastold5.Hisdoctormadehimhaveonlytwomealsaday.He___________________________onlytwomealsaday.6.Nowpeoplecanusecomputerstohelpthem.Nowcomputers___________________tohelpthem.wasmadetohavecanbeused7.Didyouplantmanytreesatthistimelastyear?___________________________atthistimelasttime?8.Mustwefinishourworktoday?_______ourwork_____________today?WeremanytreesplantedMustbefinished9.Theforeignfriendsgaveussomewonderfulstamps.1)____________________somewonderfulstamps.2)Somewonderfulstamps_____________________________.weweregivenweregiventous10.TheteacheraskedTomtoturnonthecomputer.Tom_______________toturnonthecomputer.11.Inthisfactorywomendomostofthework.Mostofthework_______________bywomeninthisfactory.wasaskedisdone12.Hecanmendthebikeintwodays.Thebike___________________intwodays.13.Youmusttakethismedicinethreetimesaday.Thismedicine______________________threetimesaday.canbemendedmustbetaken14.ThestudentsstudyGermaninthisschool.German_______________bythestudentsinthisschool.15.Dotheyoftentalkaboutthisquestion?______thisquestionoften_______about______________?isstudiedIstalkedbythem1)Teenagersshould_____(allow)togooutatnight.2)Thetelephone_____(invent)byBell.3)English____(speak)inChina.4)Thecar____(make)inChina.5)Theroommust_____(clean)everyday.beallowedwasinventedisspokenismadebecleaned