被动语态英语.doc

被动语态英语被动语态的句子是以be动词+过去分词的形式来表达，如果要特别强调动作或行为的执行者时，句子后面需接by，译为“被（由）”。1 被动语态的句型肯定句：主语+be +过去分词+（by）.否定句：主语+be not +过去分词+（by）.一般疑问句：Be +主语+过去分词+（by）？特殊疑问句：疑问词+be +主语+过去分词+（by）？被动语态的时态是由be的时态决定的，be是什么时态，全句就是什么时态，be动词后面的过去分词不变。一、 被动语态的用法： 1. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. I am asked to study hard. Knives are used for cutting things. 2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词 A new shop was built last year. Dinosaur eggs were laid long long ago. 3. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词 A new hospital will be built in our city. Many more trees will be planted next year. 4. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now. My bike is being repaired by Tom now. They are planting trees over there. Trees are being planted over there by them. 5.现在完成时的被动语态构成：has / have + been + 及物动词的过去分词 This book has been translated into many languages. Many man-made satellites have been sent up into space by many countries.6.过去进行时的被动语态构成：was/were + being + 及物动词的过去分词The boy was being operated on when his parents hurried to the hospital.The new road was being made.7.过去完成时的被动语态构成：had + been + 及物动词的过去分词The classroom hadnt been cleaned before the teacher came.The tickets had been sold out berore I came to the cinema.8.将来完成时的被动语态构成：shall/will + have doneThey will have been married for 20 years by then.The project willhave been completed before May.9.含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 Young trees must be watered often. Your mistakes should be corrected right now. The door may be locked inside. Your homework can be handed in tomorrow.二、 怎样把主动语态改成被动语态? 把主动语态改为被动语态非常简单，可以遵循以下几个步骤： 1. 先找出谓语动词； 2. 再找出谓语动词后的宾语； 3. 把宾语用作被动语态中的主语； 4. 注意人称、时态和数的变化。 例：1. Bruce writes a letter every week. A letter is written by Bruce every week. 2. Li Lei mended the broken bike this morning.The broken bike was mended by Li Lei this morning. 3. He has written two novels so far.Two novels have been written by him so far. 4. They will plant ten trees tomorrow.Ten trees will be planted by them tomorrow. 5. Lucy is writing a letter now.A letter is being written by Lucy now. 6. You must lock the door when you leave.the door must be locked when you leave. 三、 使用被动语态应注意的几个问题： 1. 不及物动词无被动语态。 What will happen in 100 years. The dinosaurs disappeared about 65 million years ago. 2. 有些动词用主动形式表示被动意义。 This pen writes well. This new book sells well. 3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 。 例：make somebody do somethingsomebody+ be +made to do something see somebody do somethingsomebody +be +seen to do something A girl saw my wallet drop when she passed by.My wallet was seen to drop by a girl when she passed by. The boss made the little boy do heavy work.The little boy was made to do heavy work by the boss. 4. 如果是接双宾语的动词改为被动语态时，直接宾语(物)作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定。 He gave me a book.A book was given to me by him. He showed me a ticket.A ticket was shown to me by him. My father bought me a new bike. A new bike was bought for me by my father. 5. 一些动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。 We cant laugh at him. He cant be laugh at by us. He listens to the radio every day. The radio is listened to by him every day. The nurse is taking care of the sick man. The sick man is being taken care of by the nurse.</CA>被动语态专项练习请写出被动语态的基本结构：_A.一般现在时的被动语态结构： is /am/are +及物动词的过去分词+其它+by sb. 1Football （play） all over the world。2Many trees （plant） in North China.3Rice （grow） in South China.4A camera （use） for taking photos5I often （ask）to do this work.B.一般过去时的被动语态结构：was /were+及物动词的过去分词其它+by sb. 1.The house （build） in 1978. 2. All the students _ (ask) to bring a kite with them last Sunday3. The car (clean) by Dad yesterday.4. I （tell）to wait for him right here.5. When the present （give）to him by his mother？C.含有情态动词的被动语态结构：情态动词can / may / must / should + be + 及物动词的过去分词+其它+by sb. 1. Chocolate may (send) to him as a present.2. Computers should （look）after well.3. Can this kind of machine （mend）by Uncle Wang?4. No stars can （see） in the day-time by us.5. Must the old people _ (speak) to politely?D.你能试着做一做含有其它时态的被动语态吗？ 1. The letter (write) by Lin Tao now.2. The bridge (finish) next month.3. The CD-ROMs (sell) already.4. The blackboard (clean) when I came in. 用动词的正确时态填空Our desks and chairs _ (make) of wood. The paper of books and newspapers _ also _ (make) from wood. Even some kinds of cloth _ (make) from it. Many people _ (burn) wood to keep themselves warm in winter. Indeed, wood _ (be) important in our everyday life.Where _ wood _ (come) from? It _ (take) from trees which _(grow) in the mountains. _ you _ (know) how it _ (get) to us from the mountains?First of all, trees _(cut) down when they _(grow) big enough. Then their branches _ (cut) off, and logs _(make).These heavy logs _(put) together in different ways and _ (take) down to the foot of the mountains. Some of them _ (float使漂流) down the small rivers and others _ (carry) down on trains.Big trees _(cut) down in the mountains every year. Then young ones _ (must, plant) so that we _ always _ (can, have) enough wood. We have to take good care of mountains so that they _ always _ (may, cover) with growing trees.选择正确答案1. When I got to his office, I _ that he_ out.A. told, had been B. was told, wasC. had told, was D. was told, had been2. The vegetables didnt taste very good. They _ for too long.A. cooked B. were cookedC. had cooked D. had been cooked3. The anti-Japanese war _ in 1937 and it _ eight years.A. was broken, lasted B. broke out, lastedC. break out, lasted D. broke out, was lasted4. She was heard _A_ an English song.A. to sing B. singC. sang D. to be sang5. These boxes are very heavy _.A. be carried B. carryC. carried D. be carrying6. The police found that the house _ and a lot of things _.A. had been broken into, has been stolenB. has broken into, has been stolenC. had been broken into, stolenD. has broken into, has stolen7. Coal can _ to produce electricity for agriculture and industry.A. have used B. used C. be used D. use8. John has never dreamt of _.A. taken to Athens B. taking to AthensC. be taking to Athens D. being taken to Athens9. Nobody likes _.A. laughed at B. laughing atC. being laughed at D. being laughed10. The bridge _ will be completed next year.A. built B. being built C. is being built D. building11. It is said that tigers _ in Asia year after year.A. are being disappeared B. are disappearingC. will be disappeared D. will disappear12. Im going to Wuhan tomorrow. Do you have anything _to your mother?A. to take B. taken C. to be taken D. taking1)C 2)A 3)A 4)C 5)D 6)D 7)C 8)B 9)B 10)B11)D 12)C