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英语学习之英语语法特殊词精讲1

2012-12-20 阅读 :

  8.1 stop doing/to do

  stop to do 停止,中断做某事后去做另一件事。

  stop doing 停止做某事。

  They stop to smoke a cigarette.  他们停下来,抽了根烟。

  I must stop smoking.  我必须戒烟了。

  典型例题

  She reached the top of the hill and stopped ___ on a big rock by the side of the path.

  A. to have rested B. resting  C. to rest D. rest

  答案:C。由题意可知,她到了山顶,停下来在一个路边的大石头上休息。因此,应选择"stop to do sth. 停下来去做另一件事"。而不仅仅是爬山动作的终止,所以stop doing sth.不正确。

  8.2 forget doing/to do

  forget to do 忘记要去做某事。 (未做)

  forget doing 忘记做过某事。(已做)

  The light in the office is stil on. He forgot to turn it off.

  办公室的灯还在亮着,它忘记关了。(没有做关灯的动作)

  He forgot turning the light off.

  他忘记他已经关了灯了。  ( 已做过关灯的动作)

  Don’t forget to come tomorrow.

  别忘了明天来。 (to come动作未做)

  典型例题

  ---- The light in the office is still on.

  ---- Oh,I forgot___.

  A. turning it off  B. turn it off  C. to turn it off  D. having turned it off

  答案:C。由the light is still on 可知灯亮着,即关灯的动作没有发生,因此用forget to do sth.

  而forget doing sth表示灯已经关上了,而自己忘记了这一事实。此处不符合题意。

本文标题:英语学习之英语语法特殊词精讲1
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