2017年广东省英语中考语法强化复习课件:第10章非谓语动词(共19张PPT)
4. 特别用法:
(1)wh-/h-疑问词+不定式(短语):其作用相当于一个名词性从句,常用在动词tell, know, imagine, learn, decided, forget, remember, consider, understand等后面作宾语,也可作主语、表语、同位语等。如:
He asked me how to open the box.=He asked me how he could open the box. 他问我这盒子怎么打开。
You have to consider what to do next.=You have to consider what you should do next. 你必须考虑下一步该做什么。
(2)带逻辑主语的不定式:不定式可以带有自己的逻辑主语,构成方法是“It is+形容词/名词+(for/of sb.)+to do sth.”。如:
It is necessary for you to have a talk with him. 跟他交谈一下对你而言有必要。(当该形容词或名词在意义上描述的是 to do sth. 的特征时,用 for 引出逻辑主语。该类形容词常为easy, difficult/hard, important, necessary, etc.)
It is foolish of you to do it like that. 你那样做好蠢。(当该形容词描述的是逻辑主语sb. 的特征时,用 of 引出逻辑主语。该类形容词常为kind, foolish, rude, clever, selfish, careful, etc.)
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