最新高中英语词语辨析大全:be to do sth

时间:2015-08-13 21:29:55

(单词翻译:单击)

  be to do sth;be about to do sth;be going to do sth.
 
  be to do sth.表示按计划或安排即将发生的动作,后可跟时间状语。如:
  You're to hand in your papers by 10 o'clock.十点钟以前你得交上试卷。
 
  be about to do sth.表示打算或安排即将发生的动作,它通常不与时间状语连用。如:
  I was about to go out when someone knocked at the door.我正要出去,这时有人敲门。
 
  be going to do sth.有三层含义:
  ①表示打算、计划或决定要做某事。如:
  We're going to spend our holidays in Wales this year. 今年我们打算到威尔士度假。
  ②用以表示某事物即将发生或很可能发生。如:
  I'm going to be twenty next month. 下个月我就二十岁了。
  ③有迹象表明即将发生的动作或状态。如:
  Look at those black clouds, there is going to be a storm. 瞧那些乌云,暴风雨就要来了。

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