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选修7《Learning about Language》最新PPT课件优质课下载
一般现在/过去时:
The book ____________________.
一般/过去将来时:
The book _________________________.
The book __________________________.
现在/过去进行时:
The book __________________________.
现在/过去完成时:
The book ___________________________.
情态动词:
The book _______________________________.
is/ was published
will/would be published
is/was going to be published
is/was being published
has/had been published
can/could/may/might…be published
二、动词不定式的被动语态
1. 动词不定式的被动语态有两种形式:
1)一般式
(not/never )to be done
2)完成式
(not/ never) to have been done
(表示不定式动作发生在谓语动词之前)
2. 动词不定式的被动语态在句子中的作用