"情态动词 have done"用法小结

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  【摘要】每年高考单项填空必有一至两道考察情态动词的题目。近几年对于情态动词的考察始终不偏不怪
  ,创设的情景逼真,设问角度注重综合化和细微化。其中考察较多的就是"情态动词 have done"的用法。
  "情态动词 have done"结构所涉及的动作都发生在过去,做这类题目要以过去为前提。下面我将按照推测
  、可能性、必要性、责备、意愿、假想等几种类型来分类、用近三年的高考题做例句把"情态动词 have
  done"用法做一个较系统的小结。
  【关键词】推测可能性必要性责备意愿假想
  每年高考单项填空必有一道考察情态动词的题目,而且这一点一直没有改变,以后的高考题对于情态动词
  的考察也将不会有较明显的变化。近几年对于情态动词的考察始终不偏不怪,创设的情景逼真,设问角度
  注重综合化和细微化。其中考察较多的就是"情态动词 have done"的用法。下面我将就"情态动词 have
  done"用法用近三年的高考题做例句做一个较系统的小结。
  "情态动词 have done"结构中的 "have done"是完成式,即该动作在过去已经做完,因此所有"情态动词
   have done"的常见结构都发生在过去,都跟过去有关。我们要教给学生做这类题目要以过去为前提。另
  外,"情态动词 have done"的用法要注意所创设的情景,可按照推测、可能性、必要性、责备、意愿、假
  想等几种类型来分类。其常见结构及其用法如下:
  1. 推测:
  must have done 、can/can’’t have done、 may/might(not) have done和couldn’’t have done
  1)must have done 用于肯定句,表示对过去已发生的行为进行推测,意为:一定做了某事。如:
  ①(2009 上海,27) It must have been Tom that parked the car here, as he
  is the only one with a car。
  ②(2010年安徽卷32)Jack described his father, who must have been a brave boy many years
  ago, as a strong-willed man。
  2)can/ can not have done通常用在否定句和疑问句中,表示对过去已发生的行为的怀疑和不肯定。如:
  ① It took him five years to finish the work. He can not have forgotten it.
  ② He has a lot of work to do today. Can he have gone to his aunt’’s?(go)
  3) may/might(not) have done表示对过去已发生的行为进行推测,意为:也许已经做。了某事。一般只
  用于肯定句和否定句中。用might则表示语气更加不肯定。
  (2011年江苏卷34)--I left my handbag on the train, but luckily someone gave it to a railway
  official.
  --How unbelievable to get it back!I mean, someone might have done it.
  4) couldn’’t have done 用于定否定句表示推測,不可能已经做了某事。如:
  I saw Mr. Wang just now. He couldn’’t have gone to Beijing.
  2.可能性:
  could have done / might have done
  1) could have done:可表示过去没有实现的可能性,意为:本来可以/可能……。如:
  ①(2009 江苏,28) He did not regret saying what he did but felt that he could have expressed
  it differently.
  ②(2009安徽,34)But for their help, we could not have finished the program in time.
  2) might have done 表示本来可能做某事,但实际上没有发生。如:
  You might have given him more help,though you were busy.
  3. 必要性:
  needn’’t have done
  needn’’t have done 表示过去做了本来没必要做的事。如:
  You needn’’t have taken a taxi here, for it was very near to my house.
  注意:didn’’t need to do 表示没必要做而实际上也没做某事。如:
  I didn’’t need to clean the window. My brother did it.
  4.责备:
  should /ought to have done 和had better have done
  1) should /ought to have done 用于肯定句,表本来应该做某事,而实际上没做;
  用于否定句,则表示不该做的事反而做了。表示轻微的责备之意。如:   ①(2009 重庆,32)--Hi, Tom. Any idea where Jane is?
  --She should have been in the classroom. I saw her there just now.
  ②(2011全国,32)They should have arrived at lunchtime but their flight was delayed.
  2) had better have done 用于事后的建议,含轻微责备之意。表示当时最好做了某事。否定式则表示相
  反的含义。如:
  ① You had better have started earlier.
  ② You had better not have scolded her.
  5. 意愿:
  would rather have done、would like to have done
  1) would rather have done表示当时宁愿做某事。其否定式表相反的含义。两者都有后悔之意。如:
  ① I would rather have taken his advice.
  ② I disagreed with him at the meeting.But now I would rather not have done that.
  2)表示过去愿意做某事,但未做成。如:
  I would love to have gone to the party last night but I had to work for two more hours to
  make a plan.
  6.假想:
  would have done
  1)would have done 表示假想的過去的动作或事情。常与if引导的表示虚拟的从句连用,意为:要是。
  。。就。。。 。如:
  ① If I had seen the advertisement I would have applied for the job.
  ② If she hadn’’t gone back for the letter she wouldn’’t have missed the
  bus.
  2)would have done 也表示过去虚拟的动作,意为:本要做某事的。如:
  ①(2011年福建,34)---Pity you missed the lecture on nuclear pollution.
  ---I would have attended it, but I was busy preparing for a job interview.
  ②(2011年天津,15)15. I would have come sooner but I didn’’t know that they were waiting
  for me.
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