不定式中省略to的情况-查字典英语网
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不定式中省略to的情况

发布时间:2015-01-08  编辑:查字典英语网小编

1) 情态动词 ( 除ought 外,ought to):

2) 使役动词 let, have, make:

3) 感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补,省略to。

注意:在被动语态中则to 不能省掉。

I saw him dance.

=He was seen to dance.

The boss made them work the whole night.

=They were made to work the whole night.

4) would rather,had better:

5) Why… / why not…:

6) help 可带to,也可不带to, help sb (to) do sth:

7) but和except:but前是动词do时,后面出现的动词用不带to的动词不定式。

8) 由and, or和than连接的两个不定式,第二个to 可以省去:

9) 通常在discover, imagine, suppose, think, understand等词后,可以省去to be:

He is supposed (to be) nice. 他应该是个好人。

举例:

He wants to move to France and marry the girl.

He wants to do nothing but go out.

比较:  He wants to do nothing but go out.

He wants to believe anything but to take the medicine.

典型例题

1) ---- I usually go there by train.

---- Why not ___ by boat for a change?

A. to try going  B. trying to go  C. to try and go  D. try going

答案:D. why not 后面接不带to 的不定式,因此选D。

2) Paul doesn't have to be made ___. He always works hard.

A. learn  B. to learn  C. learned  D. learning

答案:B. make后接不带to 的动词不定式,当其用于被动时,to 不可省略。

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