为了让大家更好的准备2019年
成人英语考试,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 receivedB. must have failed to receiveC. must receiveD. 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 hadB. could have hadC. should have hadD. 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 doB. not to be doneC. not to have doneD. 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 telephoneB. have phonedC. should have phonedD. 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。