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必修2《Learning about Language》精品PPT课件优质课下载
被动语态 the passive voice
如何把主动语态句子变成被动语态句子?哪三个部分
要变？怎么变？
1. 把主动句的宾语改为被动句的主语。
2. 把主动句的谓语动词改为被动语态结构( be + p.p.),注意be动词要按新的主语的人称和数进行变化，时态要和原来的主动语态的时态保持一致。
3. 把主动句的主语改为 by+宾语（用宾格）,也可省略。
e.g. My father wrote the book.
The book was written by my father.
Change these sentences into passive voice.
1. They make shoes in that factory.
2. They bought ten computers last term．
3. Ling Feng can take good care of Amy ．
4. They will finish the work in ten days.
5. Some workers are painting the rooms now.
6. We have made twenty more keys．
7. I was doing my homework at 8:00 last night.
1.They make shoes in that factory.
主语+及物动词+宾语
Shoes are made (by them) in that factory.
各种时态的被动语态构成
一般现在时：
S(主语）+am/is /are +过去分词
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