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1、 情态动词不能单独作谓语，它必须和动词 原形连用一起构成谓语。 一、情态动词的情态意义表示法 考点一：can可表示现在或将来的能力， 意为“能；会”。can还可表示请求、允 许，意为“可以”。如： Gabriella can speak French fluently. Can you help me lift this box?考点二：could可表示过去的能力；当 could表示允许时，语气比can更加委婉和客气。如： Could I have a drink of water, please? 考点三：may表示请求、允许，意为“可 以”。如： May I come in and wai
2、t? Thank you. You may go now.考点四：might表示允许时，语气比may更 加委婉和客气。如： Might I borrow your pen? 考点五：must表示义务、命令或必要，意 为“必须”，强调主观看法。mustnt表示“不 允许；禁止”之意。如： All passengers must wear seat belts. You mustnt talk to your mother like that. 考点六：have to意为“不得不”，强调客观 需要。如： It is getting late. I have to go.考点七：should意为“应
3、该”，既可以表示义 务或责任，还可以表示劝告或建议。其否定 式为shouldnt，意为“不应该”。如： You should read his new book. Its really interesting. Children shouldnt be allowed to play in the street. 考点八：had better do sth.意为“最好做某 事”，其否定式在better后加not。如： Youd better (not) see the film yourself. 考点九：need表示“需要”，作情态动词时， 通常用于否定句或疑问句中。【中考链接】 1. Je
4、nny finally got the job because she _ speak English well.A. might B. must C. could (2015 广东佛山)2. How do you usually go to school?My school is far away. I _ take the bus to school.A. must B. might C. have to (2015 山东菏泽)3. Its surprising that Mr. Mas little daughter _ speak English so well.A. must B.
5、canC. mustnt D. cant (2015 重庆A卷)4. As middle school students, we _ be afraid of difficulties if we want to make our dreams come true.A. must B. shouldnt C. need (2015 黑龙江哈尔滨)5. Cars, buses, bikes and people _ stop when the traffic lights are red.A. can B. may C. must (2015 四川成都)6. _ I use your dicti
6、onary?Of course. But please return it to me before you leave.A. Must B. Need C. May (2015 湖南长沙)7. Mum, the train is leaving in eight minutes. I _ go now.Okay, Jim, call me when you get there.A. may B. must C. can (2015 四川乐山)8. You _ return the book now. You can keep it until next week if you like.A.
7、 have to B. cantC. mustnt D. neednt (2015 山东青岛)9. You _ park here! Look at the sign, it says “No parking”.Sorry, I didnt notice that sign just now.A. wont B. needntC. mustnt D. couldnt (2015 江苏苏州)二、情态动词表示推测 考点一：can表示推测时常用于否定句 中，此时cant意为“不可能”。如： That cant be his mother. Shes not that old. 考点二：could常用
8、于肯定句中，表示不 确定的推测，意为“可能”。如： You could be right, but I dont think you are.考点三：may表示推测，意为“可能；也许”。 如：I may be late, so dont wait for me. 考点四：might表示推测时，比may的可能性 更小。 如： She might not want to come with us, I guess. 考点五：must表示推测时常用于肯定句中， 表示很有把握的推测，意为“一定”。如： The machine doesnt work. There must be something w
9、rong with it.1. Look! It _ be David in the classroom.It _ be him. Because I saw him in the library a moment ago.A. may; mustnt B. must; cantC. can; cant D. mustnt; can (2015 四川广安)【中考链接】 2. Harrys been driving all day he _ be tired. 1. A. need 2. B. can 3. C. shall 4. D. must (2015 浙江杭州)3. Look! The
10、man at the gate _ be our headmaster. He is always standing there every morning.No, it _ be him. He is holding a meeting in the office now.A. must; cant B. must; mustntC. cant; cant D. cant; mustnt (2015 山东滨州)4. I have been to the moon twice.You _ be joking! Its impossible!A. can B. may C. must D. ne
11、ed (2015 山东潍坊)5. Do you have any plans for this Sunday?Im not sure. I _ go to the countryside to see my grandmother.A. can B. must C. may D. need (2015 安徽)6. Will Karen come to our party?She hasnt decided yet. She _ come. 1. A. need 2. B. must 3. C. may 4. D. has to (2015 山东聊城)7. The green dictionar
12、y _ belong to _. Her name is on it.A. may, Carlas B. must, CarlaC. cant, Carla D. must, Carlas (2015 四川南充)8. Do you have any plans for this summer vacation?Im not sure. I _ take a trip to Taiwan.A. must B. need C. may D. should (2015 江苏盐城)9. Life is changeable. No one knows what _ happen in the futu
13、re.A. should B. needC. have to D. might (2015 山东莱芜)三、情态动词一般疑问句的回答 考点一：may表示请求时，用于主语为第一人称的一般疑问句中，其否定回答 不用may not，而用mustnt或cant。如： May I use your glasses for a few minutes? No, you mustnt / cant.考点二： 在回答由must引起的一般疑问句时, 肯 定回答常用must, 否定回答常用 neednt或dont have to，表示“不必”。如： Must we finish this project today
14、? Yes, you must. / No, you neednt / dont have to.考点三：在回答由need引起的一般疑问 句时，肯定回答用must，否定回答用 neednt。如： Need I bring you a coat? Yes, you must. / No, you neednt. 考点四：在回答由could(表示委婉语气) 引起的一般疑问句时，常用can / cant回答。1. Must I finish all the homework this evening?No, you _. Tomorrow is Saturday, and you have enou
15、gh time for it.A. mustnt B. needntC. wont D. cant (2015 江苏连云港)【中考链接】 2. A: Mum, may I go out to play football for an hour?B: No, you _. The air outside is not very clean.A. cant B. neednt C. couldnt (2015 贵州遵义)3. Must I hand in the exercise book today, Miss Green？No, you _. Take your time. Just tomorrow.A. shouldnt B. needntC. mustnt D. cant (2015 四川内江)4. Must I sing the song in Russian?No, you _. Its up to you.A. mustnt B. cantC. dont D. neednt (2015 四川资阳)5. Can you come t
