课件4 B7 U1 Grammar-动词不定式 (P7-9 in Vic En).pptVIP

一，不定式的句法功能 动词不定式由“_____________”构成， 可以在句中作___________________ __________________________等, 但不能作_______。 不定式作主语 To finish this report took him a week. 注意①：主谓一致 To master a foreign language ____ not easy. To know what is good and to do what is right _____ two different things. 注意②：形式主语 ▲ It is + adj. / n. + to do. It is not easy to master a foreign language. 注意③：作介词 but / except 的宾语 She could do nothing but _____ to her teacher that she was wrong. A. admit B. admitted C. to admit D. admitting ▲ can do nothing but / except do “只好…” = have no choice but to do … = cannot choose /help but do… 注意④：help 后的宾语带不带 to 均可 She can’t help _____ the house because she is busy making a cake. A. to clean B. cleaning C. cleaned D. being cleaned ▲ can’t help (to) do can’t help doing 注意：v. 短语 + sb. + to do call on / wait for / depend on / rely on / care for / long for / would like 老师号召我们向雷锋学习。 The teacher _________________________ Lei Feng. 我可以依靠他来处理这个问题吗？ Can I _________________________ the problem? 不定式作定语 注意①：不定式作定语多表示将来 This is the bridge ________ (build) last year. This is the bridge ___________ next year. 注意②：first / last / next / only / 序数词 / 最高级 + to do 他总是第一个到学校的人。 He is always ___________________school. 注意③：不定式的主动表被动 (作定语的不定式与被它所修饰的名词有着 主谓关系或者与主语间存在动宾关系) Have you got anything _________ (say) for yourself? ( you 和 say 之间有主谓关系 ) Have you got anything ___________ (type), manager? ( type 的动作不是 you / manager 发出 This question is hard (for you)_________.. 注意④： 不定式若为 vi. 其后则须有相应的 prep. The chair looks rather hard, but in fact it is very comfortable to _____. A. sit B. sit on C. be sat D. be sat on There are five pairs _____, but I’m at a loss which to buy. A. to be chosen B. to choose from