(八)非谓语动词一、动词不定式1.动词不定式的句法功能 (1)不定式作主语 To know something about English is one thing；to know English is quite another. 此时，常用it作形式主语，而把不定式放在句子的后部。 It isnt easy for her to find a new job. (2)不定式作宾语 不定式可作某些动词的宾语，常见的动词有：afford， agree，ask，decide，desire，expect，fail，hope，manage， promise，pretend，plan，intend，refuse，wish等。 I promised not to be late. 介词but/except后接不定式作宾语时，如前面有实义动词do，不 定式就要省略to。 It has no choice but to lie down and sleep. They did nothing but complain.(3)不定式作宾语补足语某些动词如tell，want，wish，advise，or
