2018年6月英语六级基础语法知识:情态动词用法

2018-04-08 14:57:57来源:网络

  在大学英语六级考试中,单独考察英语六级语法的题型几乎是没有的,但是语法知识点却贯穿整张试卷,下面新东方在线英语六级频道为大家整理了大学英语六级基础语法知识,希望可以为大家带来帮助。

  2018年6月英语六级基础语法知识汇总

  英语六级基础语法知识:情态动词+have+过去分词

  1) may(might) have + done sth, can (could) have + done sth 表示过去,推测过去时间里可能发生的事情。

  Philip may (might) have been hurt seriously in the car accident.

  Philip can (could) have been hurt seriously in the car accident.

  2) must have +done sth,对过去时间里可能发生的事情的推测,语气较强,具有"肯定","谅必"的意思。

  ---Linda has gone to work, but her bicycle is still here.

  ---She must have gone by bus.

  3) ought to have done sth, should have done sth

  本应该做某事,而事实上并没有做。否定句表示"不该做某事而做了"。

  You ought to (should) have been more careful in this experiment.

  He ought not to have thrown the old clothes away.(事实上已扔了。)

  ought to 在语气上比should 要强。

  4) needn‘t have done sth  本没必要做某事

  I dressed very warmly for the trip, but I needn‘t have done so. The weather was hot.

  5) would like to have done sth  本打算做某事

  I would like to have read the article, but I was very busy then.

  2018年6月英语六级基础语法知识汇总

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2018年6月英语六级词汇完整版带音标下载

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