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1、被动语态Passive voice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。be + Vp.p(动词的过去分词)1)be 动词可以随时态人称的变化而变化am/ is / are + V(过去分词)was/ were+ V(过去分词)will be + V(过去分词)情态动词+ be + V (过去分词)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
2、,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:amisarebeenhavehashaddodonewritewrittengogoneHe plants trees in spring. 主谓宾(受动者)Treesare plantedbyhim改为被动语态in spring.His brother washed bowls yesterday.主谓宾(受动者)Bowls were washedbyhis brother yesterday.Tom will clean
3、the room tomorrow.主谓宾(受动者)The roomwill be cleanedbyTom tomorrow.Parents should allow teenagers to study in groups.主谓宾(受动者)Teenagers Should be allowedbyparents.in groupsto study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。1.They make shoes in that factory.主语+及物动词+宾语Shoes are made (by them) in that factory.一
4、般现在时:S(主语)+am/is /are +过去分词变为被动语态2. They bought ten computers last term Ten computers were bought (by them) last term.一般过去时:S+was/were +过去分词2. They will buy ten computers next month Ten computers will be bought (by them) last term.一般将来时:S+ will be +过去分词3Amy can take good care of Gina Gina can be tak
5、en good care of by Amy.情态动词:S+ can/may/must/should + be+过去分词各种时态的被动语态构成 1)一般现在时:You are invited to do this.2)一般过去时:The story was told by her.3)一般将来时:The problem will be discussed tomorrow.4)情态动词:The rubbish can be put into the dustbin over there.看一看 想一想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
6、-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 +Vpp1.Bikes are made of metal.2.My shirt is bought by my mother.3.The bridge was built in 1951.4.The work will be finished tomorrow.5.Teenagers should be allowed to smoke6.The flowers must be watered every day.1.Paul uses th
7、e knife for cutting things.The knife _ _ for cutting things by Paul.2.The students clean the windows of their classroom twice a month.The windows of their classroom_ _ twice a month.EXERCISES is usedarecleaned(变被动语态)3.I found the tickets on the floor._ _ _ _ on the floor.4.I told her to return the b
8、ook in time.She _ _ to return the book in time.The tickets were found was told5. His doctor made him have only two meals a day.He _ _ _ _ only two meals a day.6.Now people can use computers to help them.Now computers _ _ _ to help them. was made to have can be used7. Will you plant many trees at thi
9、s time next year?_ _ _ _ _ at this time next time?8.Must we finish our work today?_ our work_ _ today?Will many trees be planted Must be finished9. The foreign friends gave us some wonderful stamps.1) _ _ _ some wonderful stamps.2) Some wonderful stamps _ _ _ _. we were given were given to us10.The
10、teacher asked Tom to turn on the computer.Tom _ _ to turn on the computer.11.In this factory women do most of the work. Most of the work _ _ by women in this factory. was asked is done12.He can mend the bike in two days.The bike _ _ _ in two days.13.You must take this medicine three times a day.This
11、 medicine _ _ _ three times a day. can be mended must be taken14.The students study German in this school.German _ _ by the students in this school.15.Do they often talk about this question?_ this question often _ about _ _? is studiedIs talked by them1)Teenagers should _(allow) to go out at night.2
12、)The telephone _(invent) by Bell.3) English _(speak) in China.4) The cars _(make) in China.5) The room _(clean) the day after tomorrow. be allowedwas inventedis spoken are madewill be cleaned( ) The flowers _ every day,or theyll die.A must water B can be wateredC should water D must be watered( ) Many computers will _ to our school.A be bring B be brought C bringDB各种时态的被动语态构成一般现在
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