[动词不定式]省去to 的动词不定式-查字典英语网
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[动词不定式]省去to 的动词不定式

发布时间:2016-03-01  编辑:查字典英语网小编

  1) 情态动词 ( 除ought 外) 后。

  2) 使役动词 let, have, make后,感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后。

  注意:被动语态中不能省去to.例如:

  I saw him dance. 我看见他跳舞。

  =He was seen to dance.

  The boss made them work the whole night. 老板让他们整夜干活。

  =They were made to work the whole night.

  3) would rather,had better句型后

  4) Why / why no句型后

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

  6) but和except后。but前是实义动词do时,后面出现的不定式不带to.

  比较:He wants to do nothing but go out. 他只想出去玩。

  He wants to believe anything but to take the medicine. 除了吃这药,他什么都信。

  7) 由and, or和than连接的两个不定式,第二个to 可以省去:

  8) 通常在discover, imagine, suppose, think等词后作宾补时,可以省去to be.例如:

  He is supposed (to be) nice. 他应该是个好人。

  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 doesnt 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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