2013高考复习--情态动词高三公开课.ppt

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1、一一 情态动词表推测情态动词表推测;二二 情态动词情态动词+完成式完成式；三三 情态动词的做题技巧。情态动词的做题技巧。情 态 动 词Lets read and translate the sentences!She couldnt/cant be so stupid to do that.I may be busy from tomorrow on. You must be tired after working so long.She shouldnt be out in such an early morning.她不可能去做那种事吧。她不可能去做那种事吧。从明天起我可能会忙起来。从明天

2、起我可能会忙起来。你工作这么久以后肯定累了吧。你工作这么久以后肯定累了吧。她不会这么一大早就出去。她不会这么一大早就出去。一、一、情态动词表推测情态动词表推测1. 肯定的推测肯定的推测v一般用一般用must, should, may（might）或）或could（不用（不用can），其中，），其中，_的语气最强，的语气最强，译为译为“肯定肯定”、“准是准是”、“想必是想必是”；v_的语气次之，译为的语气次之，译为“很可能很可能”、“应该应该”，指按常理推测；，指按常理推测；_的语气最弱，译为的语气最弱，译为“也许也许”、“可能可能”。mustshouldmay（might），），could-

3、Are you coming to Jeffs party? - Im not sure. I _ go to the concert instead. A. mustB. wouldC. shouldD. might-Hi, tom. Any idea where jane is? She _ in the classroom. I saw her just now. A. shall be B. will be C. must be D. can beAccording to the speed, the car _ arrive at Shanghai before it gets da

4、rk. A. shall B. should C. must D. need 注：注：can 有时也用于肯定句中表示推测，有时也用于肯定句中表示推测，主要用于表示理论上的可能性主要用于表示理论上的可能性(即从理论上看是可即从理论上看是可能的，但实际未必会发生能的，但实际未必会发生)，或表示，或表示“有时有时”之意。之意。如：如：Even experienced teachers can make mistakes. _She can be very unpleasant. _Food poisoning can cause death. _即使是有经验的教师也可能出错。即使是有经验的教师也可能

5、出错。她有时很令人讨厌。她有时很令人讨厌。食物中毒可导致死亡。食物中毒可导致死亡。It is usually warm in my hometown in March, but it _ be rather cold sometime.A. must B. can C. should D. wouldPeter _ be really difficult to deal with at times even though hes a nice person in general.A. shall B. should C. can D. mustat times :有时；偶尔有时；偶尔2. 否定

6、推测分为两种情况：否定推测分为两种情况： v1）语气不很肯定时，常用语气不很肯定时，常用may not, might not，译为，译为_ v2）否定语气较强时，则用）否定语气较强时，则用_，译为译为“根本不可能根本不可能”、“想必不会想必不会”，可能不、也许不可能不、也许不cantYou might just as well tell the manufacturer（制造商（制造商 ）that male customers_ not like the design of the furniture. A. must B. shall C. may D. need Isnt that Ann

7、s husband over there? No, it _ be him Im sure he doesnt wear glasses. A. cant B. must not C. wont D. may notmay/might as well 不妨不妨；还是；还是的好的好3. 疑问句中的推测，疑问句中的推测，往往用can或could。 vMr. Bush is on time for everything. How _ it be that he was late for the opening ceremony？ A. can B. should C. may D. mustv4.

8、对已发生事情的推测。对已发生事情的推测。肯定推测常用肯定推测常用“must, may, might等等+完成式完成式”； 否定和疑问推测常用否定和疑问推测常用“can, may, might等等+完成式完成式” 。 must have done: _cant have done: _may/ might have done:_想必一定做了某事想必一定做了某事不可能做了某事不可能做了某事可能可能 /或许已经或许已经v Guess what! I have got A for my term paper. Great! You _ read widely and put a lot of work

9、 into it. A. mustB. should C. must have D. should havevMy MP4 player isnt in my bag. Where_I have put it? A. can B. must C. should D. wouldv I cant find my purse anywhere. - You _ have lost it while shopping. A. may B. can C. should D. would 二、二、“情态动词情态动词+完成式完成式”二、二、“情态动词情态动词+完成式完成式” 1. “should（ough

10、t to）+完成式完成式”表表示示_。其否定式其否定式“shouldnt（oughtnt to）+完成式完成式”表示某种行为表示某种行为_。本应该做某事而实际上没有做本应该做某事而实际上没有做不该发生但却发生了不该发生但却发生了Oh, Im not feeling well in the stomach, I _ so much fried chicken just now. A. shouldnt eat B. mustnt have eaten C. shouldnt have eaten D. mustnt eatIll tell Mary about her new job tomor

11、row. You_ her last week. A. ought to tell B. would have told C. must tell D. should have toldv2. “could+完成式完成式”表示表示_的但结果没能做成，含有的但结果没能做成，含有遗憾的意味。遗憾的意味。 vHe paid for a seat, when he _ have entered free. A. could B. would C. must D. need本来能够做成某事本来能够做成某事3.might have done表示_的但实际上没有发生。I left my handbag on

12、 the train, but luckily someone gave it to a railway official.How unbelievable to get it back! I mean, someone _ it.A. will have stolen B. might have stolen C. should have stolen D. must have stolen本来可能做某事本来可能做某事 3. “neednt+不定式的完成式不定式的完成式”表表示示_而实际上做了而实际上做了某事。某事。 The weather turned out to be fine yes

13、terday. I _ the trouble to carry my umbrella with me. A. should have taken B. could have taken C. neednt have taken D. mustnt have taken本来不必做某事本来不必做某事三三 情态动词的做题技巧情态动词的做题技巧:1. 1. 充分利用句子语境。充分利用句子语境。综观历年高考英语情综观历年高考英语情态动词的考查情况，有相当一部分考题从本质上态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即看都是在考查情态动词在具体语境中的运用，即只要

14、考生能弄清各个被考查情态动词的意思，就只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。如：可作出正确选择。如：Lucy doesnt mind lending you her dictionary. She _. Ive already borrowed one. A. cant B. mustnt C. neednt D. shouldnt 分析：答案选分析：答案选C。既然。既然“我已经借了一本我已经借了一本”，据此语，据此语境所以境所以“她就没有必要借给我了她就没有必要借给我了”。(1) Helen _ go on the trip with us, but she isnt q

15、uite sure yet. A. shall B. must C. may D. can(2) Ive taken someone elses green sweater by mistake.It _ Harrys. He always wears green. A. has to be B. will be C. mustnt be D. could be2.2.根据时间确定时态。根据时间确定时态。即要分清情态动词表推测时即要分清情态动词表推测时涉及的是现在情况还是过去情况。原则上说，若对现涉及的是现在情况还是过去情况。原则上说，若对现在情况进行推测，情态动词后接动词原形或进行式；在情况

16、进行推测，情态动词后接动词原形或进行式；若对过去情况进行推测，则后接动词的完成式；若对过去情况进行推测，则后接动词的完成式；This cake is very sweet. You _ a lot of sugar in it. A. should put B. could have put C. might put D. must have put分析：答案选分析：答案选D D。前文说。前文说“蛋糕很甜蛋糕很甜”，下文，下文“你一定你一定是在里面放了很多糖是在里面放了很多糖”，故用，故用“must have done”“must have done”表示表示对过去情况的肯定推测。对过去情况的

17、肯定推测。对现在或将来的推测常用结构为：对现在或将来的推测常用结构为：情态动词情态动词+_/_+_/_对过去情况的推测常用结构为：对过去情况的推测常用结构为：情态动词情态动词+_ +_ 如：如：dobe doinghave done(1) Catherine, I have cleaned the room for you.Thanks. You _it. I could manage it myself. A. neednt do B. neednt have done C. mustnt do D. mustnt have done(2) Mary stayed in Africa studying wild animals for 13 years before she returned. Oh, dear! She _ through a lot of difficulties! A. may go B. might go C. should have gone D. must have gone