高三英语情态动词和虚拟语气

高三英语情态动词和虚拟语气内容摘要：

句是以现在事实相反 now. 以现在事实相反的虚拟语气的 主句结构是 : would/ should / might/ could ＋ v原形 (包括进行时 ) 与现在相反的虚拟语气 , If +主＋ did, 主 +would\should\might + do B 19. If I ____ pass the exam, I would treat you to dinner at KFC. A. will B. were to C. was to D. am going to shall用于第二人称表示向对方的承诺 . You shall get a birthday cake if you pass the exam. A 20. You ____ have the book when I finish it. A. shall B. will C. would D. could must have done一定已经发生某事 should have done本来应该做某事却未做 may have done有可能发生某事 might have done mustn’t表禁止 C 21. – Mum, I climbed to get the Teddy Bear from the top of the shelf. My goodness! You ____ yourself. You ____ do that again next time. A. must have hurt。 mustn’t B. should have hurt。 can’t C. may have hurt。 mustn’t D. might have hurt。 won’t be able to couldn’t+have done better不可能 再好了 , 也就是最好了 . 英语句子中通常用比较级表示最高级 . I can’t agree with you more. 我非常赞成你 . You can’t be too careful while crossing the street. 过马路时怎么小心也不为过 . C 22. –Mom’s gift? She ____ have chosen a better one for me. She ____ be very happy to know it. A. should。 must B. might。 must C. couldn’t would D. mustn’t。 would should be 是应该的意思 我们还可以做得更好些 . A 23. “We are not better at explaining the new law than we ______”, plained the young lawyer. A. should be B. would be C. will be D. can be shouldn’t +have done本不该做某事却做了 can’t +have done不可能发生某事 他不可能走远了 , 因为他的外套还在这 . needn’t +have done本不必做某事却做了 . C 24. –Do you know where David is? I couldn’t find him anywhere. Well, he ____ have gone far – his coat is still here. A. shouldn’t B. mustn’t C. can’t D. needn’t 虚拟语气用于主语从句 It is required (suggested ,desired ) that +sb+(should) do sth C 25. It is required in the regulations that you ____ other people the password of you account. A. won’t tell B. don’t tell C. not tell D. didn’t tell 用介词短语代替条件状语从句的虚拟语气 Without electricity =If there is no electricity 因为 electricity已经存在，这里假设没有， 用虚拟语气 D 26. Without electricity, what ______? A. will our life be like B. our life would be like C. our life will be like D. would our life be like more time and money given 是独立主格结构 , 因为后面主句的主语是 I, 前后不一致 , 时间和金钱是被给 , 用过去分词 , 相当虚拟的条件 如果给更多的时间和金钱 , 我会做得比现在这个样子 更好些 . could have done本来能够做某事 (但事实上没有 ) C 27. More time and money given, I _____ better than what it is. A. must have done B. need have done C. could have done D. should have done could have done 本来可以求助于 Mr. Smith但事实上并没有求助于他 . 结果浪费了一整天 .(这里是讲事实 ) A 28. – You could have turned to Mr. Smith for help, for he is always helpful. Yes, a whole day _____. A. was wasted B. h。