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2)作结果状语,可以表示没有预料到的或事与愿违的结果,不定式要放在句子后面。
I awoke to find my truck gone. 我醒来发现箱子不见了。
He searched the room only to find nothing. 他搜索了房间,没发现什么。
3) 表原因
I'm glad to see you. 见到你很高兴。
She wept to see the sight. 她一看到这情形就哭了。
4)表示理由和条件
He must be a fool to say so.
You will do well to speak more carefully.
7.用作介词的to
to 可以用作介词,也可用作不定式的标示。下面的to 都用作介词:
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admit to |
object to |
be accustomed to |
be used to |