七种被动语态形式 1) 一般现在时的被动语态 (am/is/are+ 过去分词） 如: The work is done during two days. 2) 一般过去时的被动语态 (was/were+ 过去分词）

如: He was sent to the hospital immediately after the accident. 3) 一般将来时的被动语态 (will/shall + be + 过去分词或 + be going to + be + 过去分词） 如: The work will be finished soon. 4) 现在进行时的被动语态 (is/am/are + being+ 过去分词） 如: The bridge is now being constructed.

5) 现在完成时的被动语态 (have/has +been + 过去分词） 如: The radio has been repaired when we phoned the shop. 6) 带情态动词的被动语态 (情态动词 + be + 过去分词) 如: This can be done in a few minutes.

7) 动词不定式的被动式 (to be + 过去分词) 如: It is an honor for me to be asked　to speak here.

现在完成时的被动语态 　 现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响, 其构成是: have/has been + done。例如： 1. The dirty clothes have been washed. 脏衣服都已经洗了。 2. The plan has been studied by the experts for three times. 这项计划已经由专家研究过三次了。

3. The child has been taken care of by Grandma Wang all these years. 这些年来, 这个小孩一直由王奶奶照料。 现在完成时被动态： have / has  + been + 动词过去分词 现在完成进行时： have / has + been + 动词现在分词

The Temple of Zhang Fei has been rebuilt. 它们的构成的区别在最后的动词上, 被动态接的是过去分词形式, 现在完成进行时接的是现在分词形式。 1. 主语是行为动作的承受者。如： The Temple of Zhang Fei has been rebuilt. 张飞庙已经过重建。

The door has been locked. 门已经被锁上了。 2. 说话时已经完成的动作或出现的结果。如: The door has been locked. 门已经被锁上了。 3. 动作或状态始于过去, 持续到现在, 并可能 持续下去。如： He has been told about it for many times. 有人告诉他这事很多次了。 （可能还会有人告诉他） （我或别人现在进不去）

4. 用在时间和条件状语从句中, 表示将来某时已完成的动作。如： We’ll start as soon as the work has been finished. 工作一完成我们就立即动身。

often, usually, always, never, hardly, seldom等副词置于have/has和been中间。如: 注意: 1. 副词的位置 often, usually, always, never, hardly, seldom等副词置于have/has和been中间。如: [误] Such a man has been hardly believed. [正] Such a man has hardly been

2. 并不是所有动词都有被动语态 1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。如： [误] Great changes have been taken place in China since 1978. [正] Great changes have taken place in China since 1978.

2) open, break, drop等不强调动作发出者时常用主动语态。如： [误] The door has been opened of itself. [正] The door has opened of itself. 3. 短语动词不可分割或省略其中的介词或副词。如： The SARS patients have been taken good care of.

4. 一些特殊动词, 如borrow, finish, begin, buy, start, return, marry, open, join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思， 则需改换动词或时态。如：

My brother has had(不能用has bought) this bike for almost four years. How long has this book been bought? How long ago was this book bought?

如: Some new computers were stolen last night. 一些新电脑在昨晚被盗了。 被动语态的用法: (1) 不知道或没有必要说明动作的执行者是谁。 如: Some new computers were stolen last night. 一些新电脑在昨晚被盗了。 (不知道电脑是谁偷的) 　　 This book was published in 1981. 这本书出版于1981年。

This book was written by him. (2) 强调动作的承受者, 而不强调动作的执行者。 如: The window was broken by Mike. 窗户是迈克打破的。 　　 This book was written by him. 这本书是他写的。

(根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。 主动语态变被动语态的方法 (1) 把主动语态的宾语变为被动语态的主语。 (2) 把谓语变成被动结构(be＋过去分词) 　 (根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。　

All the people laughed at him. He was laughed at by all people. 　 They make the bikes in the factory. 　 The bikes are made by them in the factory. 　 歌诀是:宾变主, 主变宾, by短语后面跟。 　 谓语动词变被动, be后“过分”来使用。

4) 双宾语动词变被动语态可将其中的一个宾语变为主语， 另一个保留不动。 主动：I have given him the key. 被动：He has been given the key. 被动：The key has been given (to) him.

5) 带复合宾语的动词变被动语态时, 只能将宾语变为主语, 原来的宾补保留不动， 改称主语补足语。 主动：I have asked her to help you. 被动：She has been asked to help you.

Exercises 1. Both my brother work at the power station that ___ in my hometown. A. has set up B. has been set up C. was set up D. is set up 2. ---_____ the sports meet will be put off. A. I’ve been told B. I’ve told C. I’m told D. I told

3. All the preparation for the task ____, and we’re ready to start. A. completed B. complete C. had been completed D. have been done

4. ---- How long ____ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed

5. When and where to go for the on-salary holiday ____ yet. A. are not decided B. have not been decided C. is not being decided D. has not been decided

6. Betty___ injured since last Saturday. A. has been 　　 B. was C. is 　　　　　 D. has

7. That book _________into at least 20 foreign languages. A. has said to be translated B. has been said to have translated C. is said that it had been translated D. is said to have been translated 注:该句的句型是:It is said that…/people (they) said that…/that book is said to …根据句意是已经被译成了20 多种文字所以要用现在完成时的被动语态。

 -- Of course. I ___ the living room all day. 8. –Hi, Tom, you look tired.　  -- Of course. I ___ the living room all day. A. had painted B. painted  C. have been painted 　　　 D. have been painting

9. --Did you move into the new house? -- No. The rooms ___ yet. A. were being painted B. are painting C. have not painted D. have not been painted

10. Great changes___ in my hometown and a lot of factories ___. A. have been taken place; are being set up B. have taken place; have been set up C. are taken place; had been set up D. took place; will set up

11. It’s said that this book___ into Chinese. A. had translated B. has translated C. was translated D. has been translated 12. You can’t move in .The house _____. A. is painting B. is being painted C. has painted D. has been painted

13. Millions of pounds’ worth of damage___ by a storm which swept across the north of England last night. (2005重庆) A. has been caused B. had been caused C. will be caused D. will have been cause

14. Have you ever___ to the exhibition which ___for three weeks? A. gone; has been shown B. visited; shown C. been; has been on show D. went; lasted

15. ---How long ago ___ these eggs___? --- Perhaps 15 days. A. will; hatch B. did; hatch C. were; hatched D. have; been hatched

改错 1. A personal computer has bought by us. A personal computer has been bought by us. 2. Many problems has been found with our new computer. Many problems have been found with our new computer.

3. A PC has been builded the way we wanted. A PC has been built the way we wanted. 4. Our computer just has been joined to the internet. Our computer has just been joined to the internet.

5. The computer was used every day since we bought it. The computer has been used every day since we bought it. 6. A lot of e-mails had written on the computer in the past 5 years. A lot of e-mails have been written on the computer in the past 5 years.