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1、高考情态动词考查的热点： 情态动词表示推测的用法 (can/could/may/might/must),一对现在和将来情况的推测, 形式为： 情态动词+动词原形 二对正在发生的情况的推测 形式为：情态动词+be doing 三 对过去发生情况的推测 形式为：情态动词+have done,1 It is usually warm in my hometown in March, but it _be rather cold sometimes.(2008 福建） A must B can C should D would,2 Thank you for all your hard work la
2、st week. I dont think we _it without you.(2008 山东) A can manage B could have managed C could manage D can have managed 3Why hasnt the speaker turned up? He _the flight! Ill find it out at once. A must have missed B might have missed Cmight miss D could miss,can not不可能,可能吗,可能,could not不可能,可能吗,可能,may/
3、might not可能不,一定,Can you tell the difference?,一 句式不同 口诀：前提条件：在表示推测时 can 不肯 may(might)不问 must肯定不否问,表示推测,?,二 意义不同 问题：“一定没有，一定不是”如 何表达？,一表示对现在和将来情况的推测， 形式：情态动词动词原形 1 应用：表示推测时_是正确的句子。 A He can come. B May he come? CHe could come. D Must he come? 2 特别说明：can用于肯定句中表示推测的情况：,The World Wide Web is sometimes jo
4、kingly called the World Wide Wait because it _be very slow.(2005浙江） A must B C will D can,解释：当表示客观的（理论）可能性，意义为有时可能时，can可以用于肯定句中表示推测。这种用法常常可以说明人或事物的特征。,D,should,C,1 You _be hungry alreadyyou had lunch only two hours ago!(2008 浙江) A wouldnt B cant C mustnt D neednt 2Is there a basketball match between
5、 the Lakers and the Huston Rockets this evening?(2008 江苏无锡模拟） There_be. Ill phone the gym and find it out. A might B C must D would,B,A,should,二表示对正在发生情况的推测， 形式为：情态动词be doing 译为(可能，一定）正在 例题： 1_he be watching TV now? A:Yes,he _be watching TV now. B:No, he _be watching TV now. A Must; can; mustnt B Ca
6、n ; must; cant C Can; can; mustnt D May; must; neednt,B,三 表示对过去发生情况的推测， 形式为情态动词+have done, 译为:过去(可能，不可能,) 注意could,might +动词原形 表示对_(时间）的推测。,现在,将来,A: He knows much about Australia. B:He_ the book The History of Australia. A could read B could have read A might read B might have read,B,1He cant have lo
7、st his way.He got a map with him. 2They could have had a meeting yesterday,but Im not sure. 3He could have gained full markes, but he was so careless to make a spelling mistake. 4 You were so rude.You may have hurt him. 5He douted,“I might have met her a long time ago.” 6He might have given you more
8、 help,but he didnt. 7This cake is very sweet.You must have put a lot of sugar in it. 8He mustnt have sit up too late last night, for he got up early this morning.,三 对过去的推测 情态动词+have done,以下8个句子，有一个是错的，请找出并翻译剩余句子,1,2,2,1,1,三 对过去的推测 情态动词+have done,如何区分表示推测的情态动词 (can/could/may/might/must) 三个方面,1 从时间上区分
9、，三段时间表达形式不一样。,2 从句式上区分，不同的情态动词所用的句式 不一样。,3 从意义上区分，不同情态动词意义不一样。,1 It is usually warm in my hometown in March, but it _be rather cold sometimes.(2008 福建） A must B can C should D would,2 Thank you for all your hard work last week. I dont think we _it without you.(2008 山东) A can manage B could have mana
10、ged C could manage D can have managed 3Why hasnt the speaker turned up? He _the flight! Ill find it out at once. A must have missed B might have missed Cmight miss D could miss,B,B,B,一 课堂练习 二 知识回顾，竞赛,1 从时间上区分，三段时间表达形式不一样,2 从句式上区分，不同的情态动词所用的句式 不一样。,3 从意义上区分，不同情态动词意义不一样。,如何做情态动词表推测的题目?,1 can 在所有的句式中都能使用 吗？,2 should +动词原形可以表示推测吗？,3 可以用could do ,might do 表示对过去的猜测吗？,4 mustnt have done 可以使用吗？,5 could have done可以用于肯定句吗？可以表示虚拟吗？,6表示推测的情态动词句式要求是什么？,7 如何做情态动词表示推测的题目？,抢答题,Oversleeping will never make your dream come true.睡懒觉永远不会使梦想成真。,Bye bye!,Homework: Recite your notes.背诵笔记,
