1、初中情态动词讲解及练习题 情态动词表示语气和态度。有实际词义，但是没有单复数等词形变化。后面通常加动词原形中考主要考查can，must，may，need四个情态动词。除此之外，表示必要性的情态动词还有should，应该，这个语气比must弱，还有had better（not）do ，最好（不）去做，这个语气更弱。情态动词词义否定式缩略否定式can/could能够，可能can/could notcant/couldntmay/might可以，也许may/might notmaynt/mightntmust必须，一定must notmustntshould应该should notshouldnto
2、ught to应当ought not tooughtnt toshall可以，必将shall notshantwill/would愿意，决心will/would notwont/wouldntneed需要need notneednt易考点：一比较have to和must：1) 两词都是必须的意思，have to 表示客观的需要， must 表示说话人主观上的看法，既主观上的必要。 My brother was very ill, so I had to call the doctor in the middle of the night. 我弟弟病得很厉害，我只得半夜里把医生请来。(客观上需要
3、做这件事) He said that they must work hard. 他说他们必须努力工作。（主观上要做这件事） 2) 在否定结构中： dont have to 表示不必 mustnt 表示禁止， You dont have to tell him about it. 你不一定要把此事告诉他。 You mustnt tell him about it. 你一定不要把这件事告诉他。二 肯定句中，表示推测，语气最强的是must，但在否定句和疑问句中，表示怀疑，猜测，要用cant. （mustnt禁止，不允许，不能用来表推测； cant 不可能） There is someone knoc
4、king the door. It must be Tom. It cant be Tom in the classroom. Because he is ill and he doesnt come to school today.三 情态动词的回答 1. 以can开头的一般疑问句，其肯定和否定回答分别用：can和cant。（Could也是） 2. 以may开头的一般疑问句，其肯定和否定回答分别用：Yes, you may. / No, you mustnt. May/might表推测时，语气最弱。表建议请求时，语气最委婉。 May 也可以表示祝愿。 -May I go now? -Yes.
5、 You may. / No, you mustnt. We may go to Shanghai, but we are not sure. May you success! 3. - Must I finish the project today? - Yes, you must. / No, you neednt.四其他 Shall 用于第一人称，表示征求意见，询问。 Shall we have lunch here? Should表示义务责任。 We should obey traffic rules.【课堂练习】1、(2010河北省卷31. 1) Do we have to fini
6、sh our homework this afternoon? Yes, you _. A. must B. can C. may D. need2、 （2010湖南省娄底市5. 1） Must I be in hospital for a week, Doctor?No, you . You can go back home tomorrow. A. mustnt B. neednt C. must 3、 (2010江苏省盐城市3.1) The desk is not dirty. You_ clean it.A. mustntB. shouldntC. neednt C. cant4、 (
7、2010四川省内江市23. 1) What is your mother going to do this Saturday? Im not sure. She _go to see my grandmother. A. can B. mustC. may5、 (2010山东省潍坊市23. 1) Is Jessica giving us a speech this evening? No, it _be her. She _to Japan.A. mustnt ;has gone B .mustnt ;has been C. cant ;has goneD. cant ;has been6、
8、（2010江苏省南京市6. 1）Its the library! So you _know shouting is not allowed here.A. canB. mustC. needD. may7、 (2010浙江省衢州市24. 1) Boys and girls, dont forget your report. It _ today. A. cant finishB. cant be finished C. should finishD. should be finished8、 (2010江苏省无锡市8. 1)Mr Smith must have been to your hom
9、e this morning. No, he _, because he didnt know my address.A. couldntB. cantC. mustntD. may not9、 (2010湖南长沙25. 1)Must I finish my homework at school? _.You can do it at home and hand it in next week. A. Yes, you mustB. No, you needntC. Yes, I can10、（2010四川省成都市33. 1）The lake is said to be dry. Is tha
10、t true? It _. Look, some kids are swimming in it. A.must be true B.cant be trueC.may not be true11、（2010浙江省湖州市19，1）Is the man over there Mr. Brown? It_be him. Hes much shorter. A.mustB.cantC.needntD.may12、（2010山西省26，1）_your American friend eat with chopsticks? Yes, but he cant use them well. A. Can
11、B.Should C. Must13、（2010湖北省十堰市29，1）Wheres Jeff? Im not sure. He _be playing football on the playground. A.needB.mightC.mustD.can14、（2010山东省莱芜市30，1）Listen! Is it Linda singing in the next room? No, it _be her. She is still in Shanghai. A. cant B .couldnt C. may not D. might not15、（2010贵州省铜仁市24，1）This
12、 pair of shoes _ belong to Jack. He likes this kind very much. It _ be his. Its too large for him.A. can; cant B. may; neednt C. must; mustnt D. must; cant16、（2010湖北省荆门市29，1） You _ _ smoke. You are only 14 and it isnt allowed. A. mustnt B. dont have to C. neednt D. wont 17、（2010湖北省襄樊市34，1） Can I go
13、to the movie , Mum ? Certainly, But you _ be back by ten oclock . A. can B. may C. might D. must 18、（2010广西省定西市22，1）Whos that man? Is he Mr. Brown?That be Mr. Brown. He never walks this way. A. cant B. mustnt C. must D. can19、（2010广西省桂林市34，1）_ I use your ruler, Lingling? Sure. Here you are. A. MayB. Would全品中考网 C. NeedD. Must20、（2010四川达州21，1） Must I finish my homework right now? No, you .A. neednt B. may not C. mustnt D. cant参考答案： 1-5 ABCCC 6-10 BDABB 11-15 BABAD 16-20 ADAAA
