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被动语态 总第 课时
Step1.学生自学 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
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.
　　3. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词
　　Many man-made satellites have been sent up into space by many countries. 　
4. 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.
　　5. 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 homework can be handed in tomorrow.
　　6. 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　　7. 不定式的被动语态：to + be + 及物动词的过去分词
　　There are two books to be read. → There are twenty more trees to be planted.
Step2.教师点拨 使用被动语态的注意问题
　　1. 有些动词用主动形式表示被动意义。
　　This pen writes well. This new book sells well.
　　2. 感官动词 ( http: / / baike. / view / 486144.htm )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 something→somebody+ be +made to do something
　　see somebody do something→somebody +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.
　　3. 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.
　　4. 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 ( http: / / baike. / view / 149.htm )。
　　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.
Step3.巩固练习 选择填空:
1. The reading room ________ yesterday afternoon.
A. cleaned B. is cleaned C. was cleaning D. was cleaned
2. The workers were made ________ ten hours a day.
A. work B. to work C. working D. worked
3. Food ________ in a cool place in summer.
A. must keep B. mustn’t keep C. must be kept D. mustn’t be kept
4. His father ________ to work in Hong Kong 3 years ago
A. sent B. was sent C. has sent D. has been sent
5. The pen ________ well.
A. writes B. is written C. was written D. writing
6. Great changes ________ in the town since 1988.
A. have taken place B. have been taken place
C. has taken place D. has been taken place
7. Our compositions must ________ next Monday.
A. be hand in B. be handed in C. handed in D. be handing in
8. The child will ________ back to his parents next month.
A. sent B. send C. be sent D. be sending
9. ________ his work ________ yet
A. have…been finished B. has …been finished
C. has …finished D. have…finished
10. The classroom ________ now
A. is cleaning B. is being cleaning
C. is being cleaned D. is cleaned
教学反思

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