情态动词学案
【知识导图】
Step 1：中考试练
1.(2017,河北）I have travelled a lot. I _______ speak four languages.
A.can
B. may
C. must
D. need
2.(2015，河北) There’s an important football match today.
I _______ miss it.
A.may
B. can’t
C. must
D. needn’t
3.（南充）—Mum, may I play computer games this evening?
—No way, you ______ finish your homework at first.
A.can
B. must
C. may
D. will
4.（2019，眉山）—I can’t find my phone anywhere. —You ________ have lost it while shopping.
A.may
B. can
C. should
D. would Step 2：归纳总结
一．情态动词的基本用法
5.(连词成句) what, you, can, guess, happen, will
___________________________________________________?
6.(连词成句)my, would, more, time, I, talking with, family, spend
___________________________________________________.
7.(连词成句)say sorry, needn’t, you, him, to
__________________________________________________. 8.(连词成句) them, should, stop, disappearing, we, from_______________________________________________.
9.—Mom, must I do my homework now？
—No, you ________.You can go outside and play with your friends now.
A.mustn’t
B. shouldn’t
C. can’t
D. needn’t
10.Be confident, everyone. We _______ finish the difficult task on time.
A.can
B. should
C. must
D. need
11.—________ you like another glass of milk?
—Yes, I’d like to.
A.Need
B. Would
C.Should
D. Can
12.______ I see your ID card, sir? We have to check your information.
A.May
B. Must
C. Should
D. Need
归纳小结：
二、情态动词的推测用法
13.You ________be tired after working for eight hours without a rest. [广东]
A. can
B. may
C. must
D. need
14. —Look at the boy running on the ground．Is it Davis?
—It ____be him．I saw him go to the teacher’s office just now．[黄冈]
A. must
B. can’t
C. could
D. might
15. —Who is the girl under the tree?
—She ________ be Tom’s sister. But it’s too far, I’m not sure.
A.may
B. can’t
C. must
D. shouldn’t 归纳小结：
二、情态动词的应用
根据短文内容以及所给提示，在文中的横线上填写一个正确的单词。（22题考察了情态动词）
The Great Wall is known as one of the wonders of the world. Every year thousands of tourists from all over the world come to visit this place of 16. _____________ in China.
Last Saturday I went to the Great Wall with some of my 17._________(friend). It was a sunny day. On our way up, we saw many volunteers keeping order in the sun. They also
helped the elder with their bags,18. _______(take)photos for some tourists and answered people's questions. Though they were very tired, they didn't stop to have a rest. We were 19. _________ (deep )moved when we saw this. Just at that moment, we saw 20. _______ little boy standing alone and crying. We went over and asked what21.___________(happen )to him. From his answer we knew that he 22.__________(can)find his mother. We told him not to 23.__________( worry ) about it and then we tried to get in touch with his mother with the phone number he gave us. Twenty minutes later, his mother turned up. When she saw her son, she was very excited and thanked 24. ________ (we)with tears in her eyes.
That day we not only enjoyed the beauty of the Great Wall, but also felt the warmth of the society.25. _______ everyone can reach out a helping hand to others, the world around us will be more and more harmonious.
【巩固练习】
1.—Must we finish giving out the posters today? —Yes, we _______. It can’t be put off any longer.
A.need
B. may
C. must
D. can
2. —I didn’t pass the math test. I think I have spent too much time playing computer games recently.
—I agree. You_______ play like that any more. [河南]
A. needn’t
B. mustn’t
C. may not
D. wouldn’t
3.— ______ I fill in the check-in form right now, sir? — No, you needn’t. You can complete it this afternoon.
A. May
B. Can
C. Would
D. Must
4. You play with fire, Tom. It’s dangerous.
A. needn’t
B. may not
C. mustn’t
D. wouldn’t
5. You ______ worry about him. He will get well soon.
A. needn’t
B. can’t
C. mustn’t
D. may not 【素质拓展】[原创]
近日，新型冠状病毒（2019-nCov）肆虐，严重影响了人
们的日常生活和学习。作为一名初中生，你有什么合理的建议
可以和大家分享？请以“What should you do to prevent the spread of 2019-nCov? ”为题，根据提示，写一篇英语短文。
提示： 1. What should you do if you must go out?
2.What do you need to do when you stay at home?
3.......
要求：1.短文必须包括所有提示内容，可适当发挥。
2.短文中不得出现真实的地名、校名和人名。
3.词数80个左右（开头已给出，不计入总词数）。参考词汇：mask（口罩），keep distance, regularly（定期地），take one’s temperature(给某人量体温)
What should you do to prevent the spread of 2019-nCov? Recently, the spread of 2019-nCov is very serious. ____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
_______
参考答案
1-4.ABCA
5. Can you guess what will happen?
6. I would spend more time talking with my family.
7. You needn’t say sorry to him.
8. We should stop them from disappearing.
9-12. DCBA
13-15.CBA
16. interest
17. friends
18. took
19. deeply
20. a
21. happened
22. couldn’t
23. worry
24. us
25. If
巩固练习
1-5. CBDCA
语法学案5：情态动词（Modal Verbs） 助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词有十三个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to. 上述两类助动词的共同特征是，在协助主动词构成限定动词词组时，具有作用词的功能： 1）构成否定式：He didn’t go and neither did she.The meeting might not start until 5 o’clock. 2）构成疑问式或附加疑问式： Must you leave right now? You have been learning French for 5 years, haven’t you? 3）构成修辞倒装： Nowhere can he obtain any information about his sister. Hardly had he arrived when she started complaining. 4）代替限定动词词组：A: Who can solve this crossword puzzle? B: Tom can. B: Yes, do. 语气和态度。 1. 后面一般+动词原形 2. 一般没有人称和数的变化即第三人称单数不加-s 3. 一般只有现在式和过去式两种形式，但可以表示现在时间，过去时间和将来时间。 4. 情态动词没有非谓语形式，即没有to do, doing, done等形式 现代英语语法还将be able to(能够), had better(最好), would rather(宁愿),used to(过去常常)等列为情态动词。
英语情态动词专项练习题及答案含答案解析 一、初中英语情态动词 1．— _______ you play tennis? —Yes, and I'm a good player. A. Can B. May C. Must D. Should 【答案】 A 【解析】【分析】句意：——你会打网球吗？——会，我是一名优秀的网球员。Can能，表示能力；may可以，表示允许；must必须，表示要求；should应该，表示建议；结合句意，此处表示能力，故用情态动词can，故选A。 【点评】此题考查情态动词的用法。 2．All passengers ______ go through safety check before they take a plane. A. can B. may C. must D. could 【答案】 C 【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。 3．You be tired after walking for such a long time. Sit down and have a rest. A. can B. can't C. mustn't D. must 【答案】 D 【解析】【分析】句意：走了这么长时间你一定很累了。坐下休息一下吧。can能，能够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定推测，情态动词使用must，故选D。 【点评】此题考查情态动词。弄清每个情态动词的使用规则，根据句意确定所使用的情态动词。 4．—Where is Mom now? —I'm not sure. She _________ be in the kitchen. A. shall B. may C. need D. must 【答案】 B 【解析】【分析】句意：—妈妈现在在哪里？—我不确定，她也许在厨房。A. shall 将要； B. may 可以，可能； C. need 需要； D. must必须，一定；根据I'm not sure可知是不确定；故选B。 【点评】此题考查情态动词表推测的用法。 5．—Who it be that is knocking at the door? —It be father, but I'm not sure.
Modal verbs 情态动词的用法二 (By Wang Huiyu from Newman School ) I. Teaching Objectives: 1. Cultivate Students’ abilit y of logical thinking and creative thinking, as well as the ability of thinking in English. 2. Cultivate Students’ comprehensive aptitude of Eng lish language use. 3. Cul tivate the students’ ability. II. Focus and difficult points: The second usage of modal verbs---guessing III. Teaching Methods: Communicative/task-based/ student-oriented teaching method IV. Teaching Aids PPT/ Pictures/songs/ Learning paper V. Teaching duration: 40minutes VI. Teaching process: 一. lead in Watch a video, then answer a question. 二、Through three steps Step 1 Go over the first usage of modal verbs 5 tasks Step 2 The second usage of modal verbs---guessing，4 tasks。 Step 3 Exercises 三、Summary 四、homework 1.Finish a paper of modal verbs 2.Preview Section A.
情态动词专项练习（一） 1. I __________ you, because I thought I must be wrong. A. dare not ask B. dare not to ask C. dare not asking D. dare to not ask 2. There __________ some flowers in the garden. A. were used to be B. used to be C. uses to be D. used to be having 3. ―__________ I take it out?‖―I′m sorry, you __________.‖ A. Could …couldn′t B. Might…might not C. Could…can D. May…can′t 4. You were stupid to climb the tree. You __________ hurt yourself. A. may B. might C. will D. might have 5. You __________ those letters. Why didn′t you ? A. should post B. should have posted C. must have posted D. ought to post. 6. All the lights are on, the Smiths __________ up. A. must get B. is getting C. must be getting D. would get 7. He __________ lead a horse to the water but he __________ not make it drink. A. will…can B. may…can C. may…dares D. dare…can 8. ―Need we do this job now?‖―Yes,__________.‖ A. you need B. you should C. you must D. you can 9. __________ to have lunch with us today? A. Do you likes B. Would you like C. Will you liked D. Have you liked 10. He said that you __________ watch TV all the evening if you wished. A. may B. must C. can D. might 11. –Is John coming by train? --He should, but he __________ not. He likes driving his car. A. must B. can C. need D. may 12. Peter __________ come with us tonight, but he isn′t very sure yet. A. must B. can C. may D. will 13. Michael __________ be a policeman, for he′s much too short. A. needn′t B. can′t C. shouldn′t D. won′t 14. I thought you __________ be hungry, so I have brought you some cakes. A. may B. might C. can D. could 15. I wonder how he __________ that to the teacher. A. dare to say B. dare saying C. not dare say D. dared say 16. Come on! We __________ hurry because there isn′t much time left. A. may B. must C. can D. need 17. Amy did best in the English test. She __________ hard last week. A. must have working B. should have worked C. should work D. must work 18. The fire spread through the hotel very quickly but everyone __________ get out. A. had to B. would C. could D. was able to 19. –--I stayed at a hotel while in New York. ---Oh, did you? You __________ with Barbara. A. could have stayed B. could stay C. would stay D. must have stayed 20. It′s nearly seven o′clock. Jack __________ be here at any moment. A. must B. need C. should D. can 专项练习（二） 1. Jean have kept his promise. I wonder why he changed his idea. A. must B. should C. need D. would
Modal verbs（情态动词的用法） ————课堂导学案 一、Lead in Watch a video, then answer a question. ---How does Mr. Bean like the man? --- _____________________ 二、教学过程 Step 1: 复习情态动词用法一 5 tasks 1.动词的种类：_________________ _________________ _________________ _________________ 2.情态动词的定义:___________________________________________________ 3.已经学过的情态动词：4-3-2 ①能、会____________ 也许，可能___________ 应该______________ 将会_________________ ②必须___________ 需要________________ 敢_______________ ③不得不_________ 最好_____________________ 4 情态动词的语法特征： ①后接动词____________He can speak English. ②无_____和______ 的变化They can speak English? ③构成否定句时，在其后加______ 构成疑问句时，将其_____ He can’t speak English Can he speak English? 注意：have to 不遵循以上②、③规则，其有_____ _____的变化，疑问句也要借_____来完成。如：They have to go home . She has to go home. They don’t have to go home. She doesn’t have to go home. Do they have to go home? Does she have to go home? ④情态动词的肯定回答, 用开头的词来回答. --- May I go now? ---Yes, you may. ⑤情态动词疑问句的否定回答，通常用相应的否定形式. ---Can she swim?---No, she can’t. 但may 和must 的一般疑问句的否定回答，分别用____________ ; _____________ 5. Have a try(小试牛刀) ( )1. ---Must we clean the classroom before breakfast? ---No, you _____. A. can’t B. may not C. mustn’t D. needn’t ( )2. ---Can you tell us the story in English? ---No, I_____. A. needn’t B. don’t C. won’t D. can’t ( )3.---May I take the books out of the room?--- No, you ___. A. may not B. mustn’t C. needn’t D. don’t ( )4. You _____ go there at once. A. hav en’t to B. doesn’t have to B. don’t have to D. not have to Step 2 情态动词表推（猜）测，4 tasks。 1. He plays basketball every day, so he must be very strong now. 2. must /have to must 表________________________ 2. He looks handsome, he may/might/could be an actor in the future. may/might /could表___________________ 表示“可能性”，三者之间区别不大may 的可能性稍大。 3. can’t / can ①He is riding a bike outside, so he can’t be at home.can’t 表_______________
情态动词讲解 一．概念引入 情态动词表示一种情感和态度，是___________________(实义动词or 助动词)，它本身语义不完整，要和实义动词一起使用，后接动词的____________形式。 注：实义动词即行为动词，表示动作的动词，可单独使用做谓语。与实义动词相对应的是非实义动词，包括（帮助构成时态、语态的）be动词，（帮助构成时态、强调、虚拟的）助动词（do / does / did, have / has / had）以及情态动词。 eg. I did a lot of homework today, and I felt satisfied. People do love to have holidays for various reasons. 情态动词有__________________________________________________________ _______________________________________。 二．基础讲解 can / could 1. 表示_______________. eg. My grandma is 80 years old, but she can drive without glasses. 2. 表示________________, could 可以代替can, 表示语气较为委婉。 eg. They asked whether they could smoke in the hall. Could you please pick me up at the airport at 5 p.m. next Monday? 3. 表示推测或理论上的可能性，意为_________________. eg. I thought the story could not be true. Even an experience teacher can make mistakes. may / might 1. 表示_______________, 它的否定形式可以用may not，但表示“强烈禁止”等意思时常用_______________. eg. May I turn up the radio a little? He said that I might use his telephone. 2. 表示______________的推测, might 比may 的语气更弱。 e g. Our football team didn’t p lay well today, but we might do better tomorrow. 3. 表示_____________. eg. May you succeed! / May you live a happy life. will / would 1. 表示_________________. eg. I have told him to stop smoking many times, but he will not listen. 2. 表示询问意愿或提出请求。 eg. Will you give him a message when you see him? Would you like to join the football club?
情态动词专项练习 1. Jean have kept his promise. I wonder why he changed his idea. A. must B. should C. need D. would 解析：选B. “should have +过去分词” 表示“过去本来应该(但没能)做某事”； keep one’s promise 意为“信守诺言”。 2. Jane have come to the party, but she not find the exact time. A. could; could B. might; could C. should; could D. should; would 解析：选A.“ could have+过去分词表示过去本来应该(但没能)做某事”。 3. So many mistakes in your homework! You more careful. A. may be B. had to C. would be D. should have been 解析：选D. “You should have been more careful”. 意为：你本来应该更细心的。 4．Her brother be at home now, because he was seen playing basketball in the stadium just now. A. mustn’t B. needn’t C. can’t D. shouldn't 解析：选C. can’t be at home 意为：不可能在家。 5．---I can’t understand wh y our boss is late. ---He the early bus. A. could miss B. may have missed C. can have missed D. might miss 解析：选B. “may have+过去分词”表示对过去动作的判断，意为：可能做了某事。注意：can表示可能时，只能用于疑问句和反问句。 6. She didn't answer the phone, she ______ asleep. A. may be B. must be C. should have been D. must have been 解析：选D. 表示：对过去发生的事情的肯定推测。 7．The little girl’s eyes were red. She ______. A. may cry B. must cry C. must be cried D. must have been crying 解析：选D. 意为：她刚才肯定一直在哭。对过去某事正发生的推测。 8．He______ his supper now, for the dining hall is still closed. A. can’t be having B. needn’t be having C. mustn’t be having D. shouldn't be having 解析：选A. 对现在正在发生的事情的否定推测。 9．I parked my bike behind the building, but now it is gone. It ________ . A. may be stolen B. must be stolen C. must have been stolen D. must have stolen 解析：选C. 对过去发生的事情的肯定推测的被动式。 10. ______ Mr. Black_______go to work by ferry before the bridge was built? A. Did; used to B. Use; to C. Did; use to D. Does; use to 解析：选C. used to do的疑问式，可以是Used+主语+to do ?或Did +主语+use to do? 11. The hotel is only a stone’s throw away, you ______ take a bus. A. need not to B. not need to C. don't need D. need not 解析：选D. 说话人认为不必要乘车, need 为情态动词。 12. I am busy now, _______ my brother do it for you ? A. Will B. Shall C. Must D. May 解析：选B. 在疑问句中shall 用于第三人称，也表示征求意见。 13. ---You needn’t do it right now, need you? ---Yes I am afraid I ______ . A. need B. needn’t C. must D. mustn’t 解析：选C. Yes的意思是：不。意为：恐怕我必须现在就做。 14.My English-Chinese dictionary has disappeared . Who _____ have taken it? A. should B. must C. could D. would 解析：选C. could/can have done 用于否定推测和疑问推测。 15. ---The room is so dirty._______ we clean it? ----Of course.
<<情态动词>>教学设计 Ⅰ.Teaching Aims and Demands 1.knowledge Objects can ,could, may,might,, must,need, will would shall should 2.Ablity objects (1)Train students’the skill of doing exercises. (2)How to use Modal verb. 3.Moral Object Helping each other is very important, It is a good quality.. ⅡTeaching key points and Difficult Points (1)can ,must (2)Must I do some chores? Yes, you must. No, you need not. ⅢTeaching Methods Explanations and teaching Doing some exercises. ⅣTeaching aid Some materials ⅤTeaching procedures Step1 Lead in Make a list of modal verbs by students. Step2 New lesson 1.can (1)can ＝be able to. (2)Could you do sth?
Yes,you can No ,you can not. (3)can not 做否定推测 2.may (1)May I come in? Yes, you can. No, you cannot/must not. (2)may be and maybe 3.must (1)must 表肯定推测 (2)Must I finish this job? Yes, you must . No, you need not. 4.will and would would you like to go with me? Yes, I would like to . Sorry ,I can not. 5.shall and should shall we go together? You should be allowed to use mobile phone. Step3 Doing some exercises (1)first students do them by themselves. (2)Teacher check the answers one by one, and emphasize the important points and mistakes. Step4 summary This class we have learnt the modal verbs, and do some exercises about
Ⅰ. 单项选择(45%) 1.I thought you like something to read, so I have brought you some books. A.may B.might C.c ould D.must 2.You to the meeting this afternoon if you ha ve something important to do. A. needn't to come B. don't need come C. don't need coming D. needn't come 3. He you more help, even though he was very busy. A. might have given B. might give C. may have given D. may give 4.─I help you with some shoes, madam? ─ Yes, I would like to try on those brown ones. A. Will B. Should C. May D. Must 5. The reason why they leave wasn't explained t o us. A. had B. had to C. must D. might
6. I searched for my wallet and it wasn't there. I thought I it at home. A. left B. have left C. might have left D. coul d hav e left 7. I asleep because it took me a long time to realize t hat the telephone was ringing. A. could have fallen B. should have fallen C. must have fallen D. mustn't have fallen 8. The only thing that really matters to the children is ho w soon they return to their school. A. can B. must C. have to D. ought to 9. I want to go to the chemist's, but you go wi th me. A. need not B. must not C. need D. must 10. I thought it over, but come to no conclusion. A. can B. could C. should D. would
教师学科教案[ 20 – 20 学年度第__学期] 任教学科：_____________ 任教年级：_____________ 任教老师：_____________ xx市实验学校
Book 3--Unit 1 Grammar: Modal verbs(教 师版) Step1. Listen to an English song and fill in the blank with Modal verbs. I want to be with you ----BONZO DOG BAND (1)There are things that be done That are not yet begun Things that I do When I want to be with you Although we’re far apart You’re with me in my heart No one else do I just want to be with you (2)I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love (3)The two of us are one
Mother of my son No one else do I just want to be with you (4)I want to be with you you hear me? I need you near me I want to be with you I need you near me, my love
高中情态动词练习(附答案) 一、单项选择情态动词 1．What a pity! Considering his ability and experience, he ___________ it better. A．need have done B．must have done C．can have done D．might have done 【答案】D 【解析】 【详解】 考查虚拟语气中的情态动词。句意：真遗憾啊！考虑到他的能力和经验，他也许可以做得更好。can have done较少使用此结构，表示对过去行为的怀疑；用于疑问句时意为“难道 真的做了吗”，表示怀疑；need have done需要做某事，实际上却未做（表示虚拟语气）；must have done一定做了某事（表示对过去发生的事情的肯定推测）；might have done表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中。故D正确。【点睛】 本题是高考必考考点，一定要牢记句型意思。must have done过去肯定做了某事。should have done本应该做而实际未做。can’t have done过去不可能做了某事；shouldn’t have done 本不应该做而实际做了。need have done本有必要做某事而没做；needn’t have done本没有必要做某事；注意没有mustn’t have done的形式。 2．Most of the top leaders expressed a common desire at the UN conference, ______ that different cultures ______ coexist with tolerance. A．the one ; must B．the one ; should C．one ; must D．one ; should 【答案】D 【解析】 【详解】 考查替代和情态动词。句意：大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。替代表泛指的单数名词，通常用one替代。此处用one替代前面的a desire，是同位语；结合句意第二空用情态动词should“应该”。故选D。【点睛】 that ,it ,one 代指前面的名词时的用法 1.one 指代前面出现的可数名词，是泛指。可以和冠词连用，也可以有自己的定语。一般不能用做特指，但和定冠词连用时可以是特指。如： Please show me the cup, the red one on the shelf. 2.It 指代前面提到的单数名词，相当于the one。当one是泛指的时候，指的是同名异物，it是指同一物体.如： ----Do you want the cup ? ---Yes ,I want it. 3.that通常用来代替前面出现的可数名词\不可数名词,主要是用来避免重复。如： The weather of Guangzhou is hotter than that of Beijing.
情态动词ought to 编稿：张桂琴审稿：梁晓 概念引入 Such things ought not to be allowed. 这类事不该容许。 He said I ought to write an article about it. 他说我应当写一篇文章谈这事。 I ought to be fit for work next month. 下个月我想必可以工作了。 I don’t think you ought to have done that. 我想你不应该这样做的。 语法讲解 ought to的用法讲解 ought to是一个比较奇怪的情态动词，因为其他所有情态动词都后接动词原形，而ought to 虽然也是后接动词原形，但却无意中构成了ought to do sth结构，其中的to do sth.便是一个典型的带to不定式，并且ought to do sth在用法上也是基本上将ought与to do sth 分开使用——如构成疑问句，只需将ought提前，而不是将ought to提前；构成否定式时，是在ought后面加上not，而不是在ought to的后面加not。如： Ought I to tell her the truth? 我应该把真实的情形告诉她吗？ We ought to be careful，oughtn’t we?我们应该小心，对吧? Oughtn’t he to see a doctor?他是不是该去看医生? You oughtn’t to stay out so late.你不应当在外面待到这样晚。 在美国英语中，ought to用于否定句和疑问句时可将其中的to省略。如： Ought we (to) have done it? 我们本该做此事吗? 但是，肯定句中的to通常是不会省略。另外，在简略答语中，有时也可以省去to。如： —Ought he to go with us? 他应该同我们一起去吗? —Yes, he ought (to). 对，应该一起去。 意义如下： （1）ought没有人称或时态的变化，后跟带to的不定式。常译作“应该”，“应当”等，和should 同义，只是口气稍重一些。其否定式为ought not to (oughtn't to )，疑问式为Ought I /you to…? You ought to start at once你应该立刻出发。 Such things ought not to be done.这种事不应该干。 -Ought he to go? 他应该走了？ -Yes, he ought to.是的，应该走了。 （2）表可能性 Mary ought to be home by now.玛丽这会儿该是到家了。 There is a fine sunset. It ought to be a fine day tomorrow.今天有晚霞，明天应该是个好天。 It ought to be a fine day tomorrow morning.明天旱晨大概是个好天气。 （3）表示没有履行过去的义务时，用“ought to +完成时。
Section_ⅢGrammar—情态动词(Ⅰ) 语法图解 探究发现 ①Festivals can also be held to honour famous people. ②Some festivals are held to honour the dead or to satisfy the ancestors, who might return either to help or to do harm. ③Most ancient festival would celebrate the end of cold weather, planting in spring and harvest in autumn. ④For the Japanese festival Obon, people should go to clean graves and light incense in memory of their ancestors. [我的发现] 以上四个句子都使用了情态动词。其中，第①句中的can表示许可，意为“可以”；第②句中的might表示推测，意为“可能会”；第③句中的would表示过去习惯性动作，意为“过去常会”；第④句中的should表示劝告或建议，意为“应该”。 一、基本特征 1．情态动词有一定的词义，不能单独作谓语，需和实义动词或系动词一起作谓语。 She can speak English though she is six. 尽管她才6岁，但她会说英语。 2．情态动词一般无人称和数的变化，个别情态动词有现在时和过去时两种时态变化。 They must be in the classroom. 他们一定在教室里。 3．构成否定句时，not放在其后面。 The young man can't carry the big stone.
情态动词练习题含答案及解析 一、单项选择情态动词 1．—What’s wrong with you? —Oh, I am sick. I ________ so much ice cream just now. A．shouldn’t eat B．mustn’t eat C．couldn’t have eaten D．shouldn’t have eaten 【答案】D 【解析】 【详解】 考查情态动词和虚拟语气。句意：——你怎么了？——我生病了，我刚才不应该吃那么多冰激凌。A. shouldn’t ea t不应该吃；B. mustn’t eat禁止吃；C. couldn’t have eaten不可能吃；D. shouldn’t have eaten本来不应该吃。根据just now可知，是发生在过去，故选D。 2．---We want someone to design the new art museum for me. ---_____ the young fellow have a try? A．Shall B．May C．Will D．Need 【答案】A 【解析】 【详解】 考查情态动词。句意：——我们想找人为我设计一个新的艺术博物馆。——是不是让这位年轻小伙子试一试？shall作为情态动词,用于二三人称,表示"询问"，"警告"，"允诺"，"命令"，"决心"，"强制"等语气。will作为情态动词，用于主语是各种人称的陈述句中，表示"意愿"和"倾向"。用于第二人称的疑问句中，表"请求"。故选A。 3．Mr. Baker, some students want to see you. ______ they wait here or outside? A．May B．Should C．Shall D．Will 【答案】C 【解析】 【详解】 考查Shall的用法。句意：贝克先生，有些学生想见你。他们是在这里等还是在外面 等?Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。故选C。 【点睛】 Shall的用法 Shall作为助动词，一般用于第一人称Ⅰ和We，表示一个将来的动作，构成将来时态。Shall后面接动词原形。例如： （1）I shall think it over and Let you know my idea.我将考虑一下此事，然后告诉你我的想法。 （2）We shall have a good time in the park.我们在公园里会玩得很高兴的。常考的特殊用法