考点锁定知识网非谓语动词作主语动词不定式和动名词可用作句子的主语。不定式表示某一具体的，尤其是未发生的动作；动名词表示抽象的、泛指的动作，尤其是一般行为倾向。两者可位于句首，也可用it作形式主语，而把不定式或动名词置于后面。To get up early is necessary.Its not easy to work out the problem.Finding work is difficult these days.It is no use crying over spilt milk.非谓语动词作宾语动词不定式和动名词可用作宾语。afford, agree, ask, decide, desire, expect, fail, hope, manage, promise, pretend, plan, intend, refuse, wish等动词后要接不定式作宾语。He failed to attract her e，get，grow后接不定式作宾语时，意为“逐渐地
