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2018年12月英语六级语法:省略to的动词不定式

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发表于 2018-8-9 23:17:10 | 显示全部楼层 |阅读模式
  英语六级语法:省略to的动词不定式
          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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