《动词不定式》PPT课件.ppt

文档介绍：动词不定式
To do that sort of thing is foolish。
I want to see you this evening.
All you have to do is to finish it quickly.
We found a house to live in.
She came here to study English.
I warned the patient not to eat cold water after the operation.
主语
宾语
表语
定语
状语
宾补
1
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作主语
To give up smoking is right.
It is right to give up smoking.
试比较：
It is impossible for you to persuade him.
It is very kind of you to help me.
Seeing is believing.
To see is to believe.
2
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动词不定式做宾语
:ask,agree,care,
choose,demand,dare,decide,expect,fail,help,hope,learn,manage,offer,
plan,prepare,pretend,promise,
refuse,want,wish等不能用-ing形式作宾语，只能用动词不定式
Tom refused to lend me his pen.
3
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：begin,start,like,
love,hate,continue,prefer可用-ing也可用动词不定式作宾语
I prefer to go to Paris by air.
I prefer going to Paris by air.
4
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：forget,remember,
try,regret,go on,mean等可用-ing也可用动词不定式作宾语，但表达的意思不同
I forget to bring my homework.
I forget opening the windows.
5
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:tell,advise,show,teach,
learn,know,decide,find out等，作其宾语的动词不定式前往往加一个疑问词
I don’t know how to cook.
He told me how to get to the
station.
6
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,need,require等，当其主语是“物”时，表示“需要”，常用动词不定式的被动式作宾语
Your bedroom needs to be
cleaned.
Your bedroom needs cleaning.
7
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，但可用带疑问词的不定式
Marx gave some advice on how
to learn English well.
但but,except后可跟不定式作宾语
The boss had no choice but to
give in.
但当主要动词是do时，to省掉
They could do nothing but wait.
8
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作宾语
Fred didn’t have any money, so he decided to look for a job.
1. Fred 没有钱，所以他决定找一份工作。
请注意；
Karl Marx found it important to study the situation of Russia.
9
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作表语
My job is to teach English.
试比较；
My job is teaching English.
10
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