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[小升初语法] 省略to 的动词不定式

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  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 ratherhad better

  5) Why / why not

  6) help 可带to,也可不带to, help sbtodo sth

  7) butexceptbut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, orthan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 supposedto benice. 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.

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