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成人学位英语考点:情态动词

环球网校·2019-11-01 14:10:12浏览159 收藏15

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摘要 为了让大家更好的准备2019年成人英语考试,环球网校小编整理了相关复习考点《成人学位英语考点:情态动词》,希望有助于考生全面系统的复习考试!

情态动词 考试重点:情态动词+完成时

情态动词用来表示能力、允许、许诺、可能、劝告、意愿等概念或态度。情态动词无人称变化,在句子中和动词原形一起构成谓语。根据这几年的考试看,着重测验情态动词接完成时的用法。

一、must +现在完成时

表示对已发生的事情的一种肯定的猜测。

1、Mr. Green _____ my letter, otherwise he would have replied before now.

A. must have received  B. must have failed to receive  C. must receive  D. must fail to receive

(答案:B)(1998年44题)

2、I believe he _____ an accident, otherwise he would have arrived on time.

A. would have had  B. could have had  C. should have had  D. must have had (答案为D)(2001年58题)

二、should (ought to )+完成时

表示应该做的事情而没有做,否定式表示不该做的事情做了。含有对过去的动作的责备、批评。

1、They have done things they ought _____.

A. not to do  B. not to be done  C. not to have done  D. not having done  (答案为C)(1999年59题)

2、I’m sorry I couldn’t get in touch with him before he left, I _____ him earlier.

A. had a telephone  B. have phoned  C. should have phoned  D. should be phoned (答案为C)(2000年26题)

三、could +完成时

表示能做的事情而没有做。表示对过去能做而未做的事情感到惋惜,遗憾。

1、He could have joined us, but he didn’t get our invitation in time.他本来能够参加我们的,但是他没有收到我们的请贴。

2、I could have passed, but I did not study hard enough.  我本来能及格的,但是没有努力学习。

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