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 职称英语考试词汇2011年辅导:助动词(1)

职称英语考试词汇2011年辅导:助动词(1)

1.英语中的助动词有下面这些:

 (1)be, am, is, are, was, were, been, being

  (2)have, has, had, having

  (3)shall, will, should, would

  (4)do, does, did

  这些助动词一般没有词义,主要帮助构成谓语,表示时态、语态、语气等,或构成疑问及否定形式。

  2.助动词be可用来:

  (1)构成进行时态:职称英语

  I’ll be seeing her at 10 tomorrow.

  我明天十点和她会面。

  What have you been doing these days?

  这些天来你在干什么?

  (2)构成被动语态:

  What has been assigned for today’s homework?

  今天留了什么作业?

  Preparations are being made for the speech contest.

  演讲比赛的准备工作正在进行。

  (3)和动词不定式构成复合谓语,表示按计划安排即将发生的事情:

  A new hospital is to be built in our district.

  我们区要修建一所新医院。

  Where are we to meet?

  我们在哪里碰头?

 

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