在英语中,不作句子谓语,而具有除谓语外其他语法功能的动词,叫做非谓语动词。非谓语动词有doing;done;to do.
(一)动词不定式:(to)+do,具有名词、形容词、副词的特征。
1.不定式的形式:
否定式:not + (to) do
(1)一般式:不定式的一般式所表示的动作与谓语动词动作同时发生或发生在谓语动词动作之后,
The patient asked to be operated on at once.
The teacher ordered the work to be done.
(2)进行式:不定式的进行式所表示的动作与谓语动词动作同时发生,例如:
The boy pretended to be working hard.
He seems to be reading in his room.
(3)完成式:不定式的完成式表示的动作发生在谓语动词动作之前,例如:
He is pleased to have met his friend.
2.不定式的句法功能:
(1)作主语:
To finish the work in ten minutes is very hard.
动词不定式短语作主语时,常用it作形式主语,例如上面两句可用如下形式:
It is very hard to finish the work in ten minutes.
(2)作表语:
He appears to have caught a cold.
(3)作宾语:
【2017届高考英语二轮复习大题冲关秘籍之日常交际用语大全:高考英语非谓语动词及其用法的常考点(含解析)】相关文章:
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