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【被动语态强调句型】要点总结
一、被动语态的构成形式
1. 被动语态的基本时态变化
被动语态通常为十种时态的被动形式 , 被动语态由 be +过去分词 构成, be 随时态的变化而变化。以 do 为例,各种时态的被动语态形 式为:
1) am/is/are +done ( 过去分词 ) 一般现在时
例: Visitors are requested not to touch the exhibits. 2 ) has /have been done 现在完成时
例: All the preparations for the task have been completed, and we're ready to start. 3 ) am/is /are being done 现在进行时
例: A new cinema is being built here .
4 ) was/were done 一般过去时
例: I was given ten minutes to decide whether I should reject the offer. 5 ) had been done 过去完成时
例: By the end of last year, another new gymnasium had been completed in Beijing. 6 ) was/were being done 过去进行时
例: A meeting was being held when I was there. 7 ) shall/will be done/ be going to be done/ be about to be done/ be to be to done 一般将来时
例: Hundreds of jobs will be lost if the factory closes. 8 ) should/would be done; was/ were going to be done; was/ were about to be done; was/ were to be to done 一般将来时
例: The news would be sent to the soldier's mother as soon as it arrived. 9 ) shall/will have been done 将来完成时(少用)
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