1、中考英语情态动词复习1.Can/ may/ must用法概览 情态动词许可猜测其他can可以/表能力，“能够，会”be able tocant不可以不可能表示不能做，能力的缺失may可以可能表祝愿May you be happy!must/一定表义务，必须have tomustnt不可以，禁止/典型例题1. You _ lose your way if you walk alone in the mountains at night. A. may B. need C. should D. ought to 答案：A。通过审读题目我们可以知道本题考查的情态动词表示推测的用法，结合句意我们可知这
2、里表达的是一种“可能性”的推测，所以答案选择A。2.For our safety, we _ drive cars after drinking any wines.A) cantB) needntC) shouldntD) mustnt答案：D。本题表达的意思是喝酒禁止驾车，选项中D选项表示“禁止”的含义，故为答案。3. Can you speak louder, please? I _ hear you clearly. A. mustnt B. shouldnt C. neednt D. cant答案：D。从前一句我们可以知道说话人声音太小了，第二句进一步说明原因，不能听清楚，所以答案为
3、D。4. Passengers _ stay seated during the take-off and landing.A) canB) mayC) shouldD) must答案：D。这里表达乘客在乘坐飞机时的一种规范，也可以理解为一种责任或者义务，所以答案为D。5. Computers _solve many difficult problems quickly.A) can B) must C) need D) should 答案：A。计算机能够很快地解决很多难题，表示计算机的一种能力，故选can。6. It _ be fantastic if more students join
4、in the charity show tomorrow. A must B need C can D may答案：A。如果更多的学生参与到明天的慈善表演中，一定会很精彩，句意表达的是一种肯定的推测，所以选择must。2.关于问答句Can I?Yes, you can/ may.No, you cant/mustnt.May I?同上Must I?Yes, you must.No, you neednt.= No, you dont have to.1.-Mum, can you buy me the new iPad after the High School Entrance Examin
5、ation?典型例题1. - Im afraid I _, dear. We are short of money now. A cant B mustnt C shouldnt D neednt答案：A。根据表格中的信息，我们知道Can I,若是否定回答，往往用cant 这种形式。2. -Must we finish the poster in class? -No, you . You can finish it after class. AMustnt B. neednt C. shouldnt D. cant答案：B。Must I do? 若是否定回答，就用neednt。关于need的
6、考点情态动词：need do 行为动词：need to do，need sth.needsneeded need 为行为动词need+n. 批注：因为need一词既可以当情态动词，也可以当实义动词，意思相同但形式不同，那么就很容易引起学生的混淆，通过搭配及形式的不同可以让学生知道什么时候是情态动词什么时候是实义动词，避免错解。典型例题1. Plants and flowers _ water and sun when they start growing. A. need to B. dont need C. neednt D. need答案：B。本题重在考查学生对于need两词性的识别与辨析
7、，横线后面的词为名词，显然这是实义动词的need，其否定形式需要添加助动词，所以答案为B。2. There is still quite a lot of meat in the fridge, so you _ buy any more. A. mustnt B. neednt C. cant D. shouldnt答案：B。此题表达没有必要的意思，所以答案选择neednt。3. The weather report says it wont rain this afternoon, so you take an umbrella with you.A) shouldnt B) mustnt
8、C) cantD) neednt答案：D。同上一题，也是表达没有必要的意思，D为正解。强化练习1. Passengers _ stay seated during the take-off and landing.A) canB) mayC) shouldD) must2. Millie _ come to attend your birthday party tonight, but he isnt very sure yet.A) may B) must C) need D) has to3. Computers _solve many difficult problems quickly
9、.A) can B) must C) need D) should 4. Some Americans think if students chew gum（咀嚼口香糖）in class, they _ focus on their study. A) may notB) needntC) shouldntD) mustnt5. There is still quite a lot of meat in the fridge, so you _ buy any more. A. mustnt B. neednt C. cant D. shouldnt6. The weather report
10、says it wont rain this afternoon, so you take an umbrella with you.A) shouldnt B) mustntC) cantD) neednt7. Cathy has to do the same thing every day. She _ be very bored with her job.A) can B) need C) should D) must8. The manager says theres no hot water after 8:00p.m. You mean we _ go to bed without
11、 a shower. How terrible!A) have to B) mayC) mustD) can9. You _ watch sports news for a while if you have finished your homework.A) mustB) needC) shouldD) may10. On School Open Day, parents _ know how colorful their kids school life is. A) shouldB) canC) must D) need11.For our safety, we _ drive cars
12、 after drinking any wines.A) cantB) needntC) shouldntD) mustnt12.Plants and flowers _ water and sun when they start growing. A. need to B. dont need C. neednt D. need13. You have already tried your best, so you _ worry too much about the exams. A. cant B. neednt C. mustnt D. shouldnt14. Only you _ d
13、o such a thing, Im sure, and nobody else has such an ability. A. must B. should C. may D. can15. You _ worry about your son. He can take care of himself. A. cant B. may not C. mustnt D. neednt16 -Mum, will you buy me the new iPad after the High School Entrance Examination? - Im afraid I _, dear. We
14、are short of money now. （ A cant Bmustnt C shouldnt D neednt17. It _ be fantastic if more students join in the charity show tomorrow. A must B need C can D may18. Nowadays even a small personal computer _ store huge amounts of information. A. must B. need C. should D. can19. Every citizen _ try his
15、best to protect our environment. Its our duty. A. need B. must C. can D. may20. -Must we finish the poster in class? -No, you . You can finish it after class. AMustnt B. neednt C. shouldnt D. cant21. Christy has been in China for two years, but she still _ speak Chinese. A. neednt B. cant C. mustnt
16、D. shouldnt22. Tom, you mustnt play with fire. You hurt yourself if you dont stop. A. may B. can C. should D. need to23. You _ wash your car at the moment. Its going to rain. A. neednt B. mustnt C. shouldnt D. cant24. Can you speak louder, please? I _ hear you clearly. A. mustnt B. shouldnt C. neednt D. cant答案：1-5 DAAAB 6-10 DDADB 11-15 DDBDD 16-20 AADBB 21-24 BAAD
