②有时动作执行者不出现,也要用主动态。It is easy to do.
类似的还有:It is impossible to get there.
③在there be结构中,不定式既可以用主动态,又可以用被动态。
There is no time to lose/to be lost.
There b nothing to do/to be done.
④习惯上用to let,to blame的主动形式表示被动意义。
Nobody was to blame for the accident.
Tom asked her if she had any rooms to let.
Ⅱ.分词
主动态:一般式;完成式
被动态:一般式being done;完成式
否定式:一般式;完成式
V-ing分词的被动态结构表示它的逻辑主语是V-ing分词所表示的动作的承受者。
The problem being discussed is of importance.
Having been invited to speak.Ill start making preparations this evening.
②过去分词的构成:
只有一种形式,表示被动意义已完成了的动作或状态。1
Considered from this point of view, the question will be of great importance.
My taxes having been paid the amount left in the bank is hardly worth mentioning.
2)时态:
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