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1、高考复习情 态 动 词1. 情态动词的考点1、can; may; must should; need 等表示判断及推测；2、shall; should 的特殊用法；3、情态动词的应答策略；4、对过去的判断或推测；5、dare; need 的用法特点。2. 情态动词的用法特点1） 情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。2） 情态动词 除 ought 和 have 外，后面只能接不带to 的不定式。3） 情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。4） 情态动词没有非谓语形式，即没有不定式，分词，等形式。 f. 3. 情态动词表示推测的用法 A. 对
2、现在状态和动作的推测高考题点击： 1. Peter _ come with us tonight, but he isnt very sureyet. (N 1993)A. mustB. may C. canD. will2. Michael _ be a policeman, for he is much too short. (1994上海)A. needntB. cantC. shouldD. mayBBmust 加动词原形表示“必须做”；may 加动词原形表示“可能会做”；can 加动词原形表示“能够做”；can 表示“可能性”时只用在问句和否定句中 。该句的关键在于“but he i
3、snt sure yet”。neednt 表示“不必”；cant 表示“肯定不”；后两个选项与句意差别太 大。此句的关键在于 “for he is much too short”.3. Its nearly 7:00. Jack _ be here at any moment. (N 1995)A. mustB. needC. shouldD. can4. Johnny, you _ play with the knife, you _ hurt yourself. (N 1996)A. wont, cantB. mustnt, mayC. shouldnt, mustD. cant, sho
4、uldCBmust + be 表示“肯定会”；need + be 表示 “需要在”； should + 动词原形表示“非常有可能”；can 表示可能性只用在否定和疑问句中。前句表示“你不能玩刀”，此处的 “不能”并非表示“能力”， 而是表示“允许”，所以只能用“mustnt”；后句表示“可能会 伤着你自己”，故用 may。5. - Are you coming to Jeffs party?- Im not sure. I _ go to the concert instead. ( N 2000)A. mustB. wouldC. shouldD. might6. Mr. Bush is o
5、n time for everything. How _ it be that he was late for the opening ceremony? (2001上海春季)A. canB. shouldC. mayD. mustDA此句的关键在于“Im not sure”，既然不能肯定，只能是一种“可能性”。此句的意思为：“Bush 先生总是很守时，他怎么可能在出席开幕仪式时迟到呢？“ can 在否定句或疑问句中表示“可能性”。7. - Is John coming by train?- He should, but he _ not. He likes driving his car.(
6、N 2002)A. mustB. canC. needD. may8. - I heard they went skiing in the mountains last winter.- It _ true because there was little snow there. (N 2002北京)A. may not beB. wont beC. couldnt beD. mustnt beDC此句的关键是“He likes driving his car.” can 和 may 都可用 于否定句中，cant 表示“根本不可能”，语气很强；may not 表示“也许不可能”，语气较弱。co
7、uldnt 的语气比 cant 弱。B. 对过去动作或状态的推测1. Tom ought not to _ me your secret, but he meant noharm. (N1993)A. have told B. tell C. be tellingD. having told2. I told Sally how to get here, but perhaps I _ for her. (N 1994)A. had to write it outB. must have written it outC. should have written it outD. ought t
8、o write it outACought to 相当于 should；此句的关键是“He meant no harm”，显然指的是过去的事。should have written 意指“本该写但实际上并没有写”。3. - There were already 5 people in the car but they managed totake me as well.- It _ a comfortable journey. (N 1995)A. cant beB. shouldnt beC. mustnt have beenD. couldnt have been4. Susan_ wri
9、tten a report like this. (1995上海)A. can haveB. mustnt haveC. cant haveD. ought to not haveDC此句谈论的是过去的经历，故 A、B 不合题意；must 表示判断和推测只能用在肯定句中。该句的意思为 Susan 不可能写出这样的报告来。ought to have done 的否定式为 ought not to have done。5. Jack _ yet, otherwise he would have phoned me. (N 97)A. mustnt have arrivedB. shouldnt h
10、ave arrivedC. cant have arrivedD. neednt have arrived6. - I stayed at a hotel while in New York.- Oh, did you? You_ with Barbara. (N 1998)A. could have stayedB. could stayC. would stayD. must have stayedCA此句的关键是后半句，“otherwise he would have phoned me”，此处为省略了条件句的虚拟语气，表示“如果到了他会打电话给我的”，由此可见，他肯定没到。此句并不表示
11、判断，而是一个虚拟语气。7. There was a lot of fun at yesterdays party. You _ come,but why didnt you? (1999上海)A. must have B. shouldC. need haveD. ought to have8. I was really anxious about you. You _ home without a word. (N 2001)A. mustnt leaveB. shouldnt have leftC. couldnt have leftD. neednt leave9. Oh, Im no
12、t feeling well in the stomach, I _ so much fried chicken just now. (2002上海春季)A. shouldnt cutB. mustnt have eatenC. shouldnt have eatenD. mustnt eatDBC4. shall; should 的特殊用法 1. It has been announced that candidates _ remain in their seats until all the papers have been collected. (2002上海)A. canB. wil
13、lC. mayD. shall2. Its nearly 7:00. Jack _ be here at any moment. (N 95)A. mustB. needC. shouldD. canDC该句的意思为：“通知说所有的考生必须坐在位置上直到考卷收完了才能离开。”考生坐在位置上不能用“能够、将要、可以”来表示。而 shall 在第二、三人称里面表示一种“命令、警告、承诺”等。3. - When can I come for the photos? I need them tomorrowafternoon.- They _ be ready by 12:00. (N 1998)A.
14、 canB. shouldC. mightD. need4. You cant imagine that a well-behaved gentleman _ be so rude to a lady. (2001上海)A. mightB. needC. shouldD. wouldBC此句应是店主对顾客的承诺。should 与 how; why 等表示疑问或否定的词连用时，用来 表示一种惊奇的心情，意思为“居然、竟然”5. 情态动词的应答 1. - Shall I tell John about it?- No, you _. Ive told him already. (N 1994)A.
15、 needntB. wouldntC. mustntD. shouldnt2. - Could I call you by the first name?- Yes, you_. (1998上海)A. willB. couldC. mayD. mightAC此句的关键是“Ive told him already”，由此可见，你就不必再对他说了。在回答 “Could I ”这类婉客气的请求时，只能回答“Yes, you can 或 may”。不能用 could 或 might。3. - Will you stay for lunch?- Sorry, _. My brother is coming to see me. (N 1999)A. I mustnt B. I cantC. I needntD. I wont4. - Write to me when you get home.- _. (2001北京春季)A. I mustB. I shouldC. I willD. I canBC此句的关键是 “My brother is coming to see me.” 所以我不能在这儿吃饭。在回答对方的请求或命令时，应该用 “Yes, I will.”
