动词不定式的用法.pptx

1. 动词不定式作主语
动词不定式作主语,谓语动词用第三人称单数。
To get there by car will take a whole day.
How to get enough money is still a question.
To make a plan for our study is very important.
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1. 动词不定式作主语
有时候为了保持句子平衡,常用it作形式主语,放到句首,而将作真实主语的动词不定式放到句末。
It will take a whole day to get there by car.
It is important to make a plan for our study.
It is impossible for me to finish the work in a week.
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2. 动词不定式作宾语
动词不定式作宾语常用于下列及物动词后:
want, agree, decide, manage, wish, hope, ask, like, love , choose, promise, continue, plan, learn, expect, offer, prepare, refuse, pretend, attempt, intend, threaten, seek, hesitate, long, desire, fail等等。
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I have learned to drive the car.
He promised e but he hasn’t turn up yet.
He pretended to be reading when his mother came into his room.
The boys are longing to watch the World Cup.
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动词不定式作宾语应注意的问题

try, go on, stop, mean, regret, remember, forget等
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try to do sth. 尽力去做某事
try doing sth. 试一试,试试看
Try knocking at the back door if nobody hears you at the front door.
Try to get there on time.
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mean to do
mean doing
I won’t wait if it means delaying a week.
I meant to help you, but I was busy at that moment.
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forget to do sth. 忘了去做某事
forget doing
I forget telling her about it
I forget to bring the purse with me when I left home this morning.
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remember to do
remember doing
I remember reading the story in some book.
Remember to post the letter for me when you go to the post office.
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stop to do (表目的)
stop doing (作宾语)
I suggest we should stop to have a rest
The students stopped talking when the teacher came in.
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