【高考英语语法】疑问词+不定式结构

         【高考英语语法】疑问词+不定式结构！不定式的用法大家都完全了解了吗？伊顿教育自主招生辅导老师为大家整理了不定式的特殊用法，大家关注！

　　C.疑问词+不定式结构

　　疑问词who, what, which, when, where, how, why后加动词不定式构成不定式短语，它在句中可作主语、宾语和表语。

　　I don't know whether to go to the meeting or not.我不知道要不要去开会。

　　The problem was how to get rid of the waste thrown by the passengers.问题是如何处理乘客们丢弃的垃圾。

　　When to visit the Palace Museum has not been decided yet.何时参观故宫博物院还没有决定。

　　D.分裂不定式

　　动词不定式to do通常是不拆开的，但偶尔也可在不定式符号to和动词原形之间插入一个副词，构成分裂不定式。

　　He was too ill to completely carry out that program.他病得太重，不能完成那个项目。

　　He has made up his mind to once more try this method. 他已经下定决心再试试这个方法。

　　E.withwithout +名词+不定式结构

　　"withwithout +名词+不定式"结构在句子中通常起状语的作用。

　　With so much work to do, I shall not be able to go to the cinema with you.有这么多工作要做，我不能和你去看电影了。

　　With him to stay in the house, I feel quite safe.有他住在家里，我感到十分安全。

　　Without anything to eat, he died of hunger.由于没有东西吃，他饿死了。