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1、中考英语专题讲练:情态动词(一)要点归纳情态动词概述:情态动词有:can,may, will, shall, must, ought to,need,should,dare,be able to,和have to等。情态动词表示说话人对某种动作和状态的看法,但情态动词不能单独作谓语,一般只能和动词连用构成谓语。情态动词的语法特征: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。常见情态动词的用法:1.
2、 can:能,会,表示能力,相当于be able to(适用于任何时态)。可以,表示许可,相当于may。Cant be 不可能。2. may:可以,可能,或许。 May be 可能是,作谓语, 请区别maybe副词 ,可能。may be,maybe may be和maybe一分一合,但它们的含义和用法却截然不同。 maybe是副词,意思是“也许、可能”,在句中作状语,相当于perhaps,常位于句首。 Maybe shell come this afternoon. 她可能今天下午来。 Maybe you put the letter in your pockets. 大概你把信放在衣袋里了。
3、 在may be中,may是情态动词,be是动词原形,两者构成完整的谓语形式,与主语形成系表结构,意为“也许是、可能是”。 I cant find my watch. It may be in your pocket. 我找不到我的手表了,它可能在你的口袋里。 He may be a soldier. 他可能是军人。 maybe和may be可相互转换。 He may be in the office. = Maybe he is in the office. 他或许在办公室。 You may be right. = Maybe you are right. 你或许是对的。 3. must:必
4、须,表示肯定的猜测。 Must be 准是,一定是。 Mustnt用于否定句表示“禁止,不准”等4. could: 比can语气更委婉,客气,并不表示过去时。5. need: 需要。可作情态动词,也可作行为动词(有人称和数变化,后接带to的动词不定式)。He need make a plan. He needs to make a plan.6. 注意回答形式: May I? Yes, you may. No, you cant (mustnt)。 Must I ? Yes, you must. No, you neednt。7. must 表示说话人的主观看法,have to 表示外界客观愿
5、望, 不得不。Her mother is ill. She has to stay at home and take care of her.You must look after your clothes.8. should 表示”应当,应该”,与疑问词连用表意外,惊奇。What should I do? 我该怎么办呢?9. will, would 在交际用语中,would更客气,表邀请。Will you? Would you? 好吗?(二)专项练习一、选择适当的情态动词填空。( ) 1. John_ come to see us tonight, but he isnt very sure
6、 yet.A. may B. can C. has to D. must ( ) 2 .They _ do well in the exam.A. can be able to B. be able to C. can able to D. are able to ( ) 3. May I take this book out? No, you_.A. cant B. may not C. neednt D. arent ( ) 4. You_ go and see a doctor at once because youve got a fever.A. can B. must C. dar
7、e D. would ( ) 5. Can you speak Japanese? No, I_.A. mustnt B. cant C. neednt D. may no( ) 6. He_ be in the classroom, I think. No, he _ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; cant D. may; mustnt( ) 7. Shall I get one more cake for you, Dad?Thank
8、s, but you_, Ive had enough.A. may not B. must not C. cant D. neednt ( ) 8 .Even the top students in our class cant work out this problem, so it _ be very difficult.A. may B. must C. can D. need( ) 9 .He isnt at school. I think he _ be ill.A. can B. shall C. must D. has to( ) 10. _ I take this one?A
9、. May B. Will C. Are D. Do( ) 11. The children_ play football on the road.A. cant B. can C. mustnt D. must ( ) 12 .You _ be late for school again next time.A. mustnt B. neednt C. dont have to D. dont need to ( ) 13. Must I do my homework at once? No, you_. A. neednt B. mustnt C. cant D. may not( ) 1
10、4. His arm is all right. He_ go and see the doctor.A. has not to B. dont have to C. havent to D. doesnt have to( ) 15. He had to give up the plan, _ he?A. did B. didnt C. does D. doesnt( ) 16. - Could I use your dictionary? - Yes, you . A. will B. could C. can D. must( ) 17. He had better stay here,
11、 _ he?A. didnt B. dont C. hadnt D. isnt ( ) 18 .Youd better _ late next time. not to be B. not be C. wont be D. dont be( ) 19. Youd better _ your hair _ once a month.A. had; cut B. had; cutted C. have; cut D. have; cutted ( ) 20. You_ ask that man over there. Maybe he knows the way. A. had better no
12、t to B. had not better C. had better D. had better not( ) 21.-Shall we go and visit the History Museum next Sunday? - _ A. Here you are B. Sorry, I cant C. Yes, please D. Let me try ( ) 22 .-Why dont you ask Mike to go with us? -Thanks, _.A. I will B. I wont C. lean D. I may ( ) 23. _ I take the new
13、spaper away?No, you mustnt. You _read it only here. A. Must; can B. May; can C. Need; must D. Must; must( ) 24. Excuse me. _ you please pass me that cup?A. Do B. Should C. Would D. Must ( ) 25. _ you like to have another try?A. Could B. Will C. Would D. Do ( ) 26. Would you like to go boating with us? Yes, _.A. Id like B. I want C. Id like to D. I do( ) 27. You_ worry about your son. He will get well soon. A. neednt B. cant C. mustnt D. have to ( ) 28. The poor man needs our h