不定式在句子里可以做许多成分,有主语,宾语,表语,定语,状语和补足语.详细用法如下:
分词有三种结构,分别是to do,doing,done.
当作主语时,to do与doing没有太大区别.to do
强调偶然/一次性动作,doing强调经常性动作.而done不能做主语/宾语
作宾语时,要看搭配的动词,有些动词+to do,而有些动词加doing.
to do,doing,done都能做定语,to do表示将要发生,doing强调正在发生或不强调时间,而done强调已经发生或不强调时间.(done只表示被动)
作状语的用法和做定语的用法差不多,区别还是一样.例:used as a good vehicle,bicycle is popular.(不强调时间先后)being used by me now,the bike can't be lent to you.(强调同时发生)having been told by me many times,he still can't understand me.(强调从句在主句之前发生)
to do也做目的状语,做结果状语时一般在前面加only,表示出乎意料的结果,而表示情理之中的结果时用doing.
由于内容太多,暂且先打这些.
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