⑴It’s already 1230 now. You _______ ________ hungry. 现在十二点半了，你一定饿了。
⑵Look The light is still on. He _______ _____ working in his office now.瞧灯还亮着，他一定还在办公室工作。
⑶--Susan has bought a large house with a swimming pool . ---It _____ be very expensive. I never even dream about it. A.must B. might C. can’t D. shouldn’t ⑷Whose book is this ---It _____ be Joan’s. There is her name on the cover. A. might B. may C. must D. shall 5 Listen There must be someone _______ talk in class. （推测）听一定有人在课堂上讲话。
must表示推测，只用在肯定句中，否定句中用can’t. ******* Must说明主观看法或要求，have to“必须”，强调客观需要。
We had to be there at 10 o’clock. （客观需要） We must be back before 10 o’clock. （主观认为） ---Must we hand in our papers now ---Yes, you must. No, you needn’t/ you don’t have to （重庆中考）（ ）25. ---Must I clean the room now ---No, you _______. You can do it tomorrow. A. mustn’t B. must C. needn’t D. need （重庆中考）（ ）32. Mom, must I clean my room now No, you _____. You can do it tomorrow. A. can’t B. needn’t C. mustn’t D. shouldn’t mustn’t 是表示说话人不允许对方做某事，语气很强硬，意为“禁止，不允许”。
You mustn’t talk like that. B can , could 表推测多用于否定句can’t和疑问句中（could不是过去式，比can 可能性更小） ①Jack ______ be a policeman because he’s much too short.杰克不可能是警察，因为他太矮了。
②Who’s the man over there Is it Mr. Black ---It________ be him. He’s much taller. A. can’t B. mustn’t C. should D. may ③There ______ be anyone in the classroom because the light is off. A. might B. could C. must D. can’t ④This must be Tom’s home. （改为否定句） This ________ be Tom’s home.（must表示推测，只用在肯定句中，否定句中用can’t.） ⑤ Where ________ Tony be 托尼可能在哪里呢 ******* can和could的用法 （1）表能力。
如 be able to Can you finish the work in such a short time A computer can’t think for itself; it must 必须be told what to do. With our help, he was able to build the house （2）表示请求和许可。如 ---Can I use your bike ---Yes, you can. *注意could用过去式表示请求时，是一种委婉的说法，回答时不可用过去时进行回答，而要用一般现在时进行回答。如 ---Could you tell me the way to the post office, please ---Yes, I can/may. （2020重庆中考） 30. –Mr. Wang, can I finish my homework tomorrow --Sorry, you ________. A. can’tB. don’tC. needn’tD. won’t （2020重庆中考）33. ---Can you play the piano --- Yes, I _____. I often practice it on weekends. A. needn’t B. need C. can’t D. can C may, might 多用于肯定句中，但语气不很肯定，might 比 may 更加不肯定 ① He _____ be in the classroom. I’ll go and make sure.他可能在教室里，我将去确定一下。
② Are you coming to the party ---I’m not sure. I might go to the concert instead. ③ I’m not sure. Ask that man. He ______ know. 我不敢肯定，问问那个男的，他可能知道。
A． can B.may C. need D. shall 注意maybe 和may be 的区别 Our Chinese teacher ________ over 30 years old.______ our Chinese teacher ______ over 30 years old. She may know it . _______ she _____ it. *******表示请求或许可，might在语气上比may更委婉。肯定回答时，可用may/can/might;否定回答时，用can’t或mustn’t。如 ---May I leave now ---Yes, you can/may. No, you can’t. 中考知识点复查 1. --- Can you swim in the river --- No, I _____. A. mustn’t B. may not C. can’t D. needn’t 2. --- Ｍay I go swimming now --- No, you ______. You must finish your homework first. A. mustn’t B. may not C. couldn’t D. needn’t 3. --- Excuse me. Where is the zoo --- Sorry, I don’t know. Ask that policeman. He _____ know. A. shall B. may C. need D. would 4. __________ I finish the work today No, you needn’t. A. Must B. May C. Can D. Need 5. --- Must I finish my homework now --- No, you _________. You may have a rest first. A. mustn’t B. can’t C. may not D. needn’t 6. --- Tom, where is your father --- I’m not sure. He_______ in his office. A. is B. may be C. maybe D. may 7. ---______________I visit Lucy on Sunday, Mum ---Yes, you______________. A. Must；
can B. May；
may C. Need；
need D. May；
need 8. --- Where is Tom --- He hasnt come to school today. I think he________ be ill. A. has to B. should C. may D. need 9. --- Can you fly a kite --- No, I _____. A. mustn’t B. needn’t C. can’t D. couldn’t 10. This book _____ Lucy’s. Look Her name is on the book cover. A. must be B. may be C. can’t be D. mustn’t be 2、Whose Eg, 1 This is my watch. This wacth is mine. （划线提问） ______ watch is this _______ is this watch 2）The tennis balls are Jim’s. _________ are the tennis balls 2020重庆中考 25．Theres a red car parking in our neighborhood. Do you know _______ it is A. what B. who C. whose D. whom 3、 belong to 属于，是、、、、的一员（其后不能接名词所