1、2012屆高三情態動詞講義 一、情態動詞的推測用法考點1. must , can ,could, may , might 表推測的區別A wolf and seven lambsThe mother sheep goes to the forest .Several minutes later the wolf comes and knocks at the door.Lamb1: Listen. Someone is knocking at the door. Who _ it be?Lamb6: It _ be Mummy but I am not sure. Lamb 7: It _ b

2、e Mummy. Lets open the door .Lamb 2: It _ be Mummy. She cant come back in such a short time.Lamb 1(shout in a loud voice): Who is it ?Wolf: It is mommy. I forgot something. Please open the door.Lamb1: You _ be mommy. Her voice is always sweet but you sound so hoarse. You _ be lying.Wolf: I have just

3、 had a bad cold.Lamb1: Let me see your hands.(The wolf reaches out his hands)Lamb2: Gosh! They are so dark! How _ they be moms hands. My mothers hands are extremely white.總結：_考點2：對現在的推測和過去的Mom: The ground is wet. It _(rain) last night.Son: Then what?Mom: So it _(be) slippery outside. Do be careful w

4、hile riding.Son: I am not a little boy now. Bye-bye.Mom: Wait a minute. It may rain in the afternoon. Youd better take the raincoat with you.Son: I have to hurry . My deskmate _(wait) for me now.歸納：must/can/may/might have done 表示對_的推測 must/can/may/might do 表示對_的推測 must/can/may/might be doing表示對_的推測【

5、鞏固練習】1. It _ _(be)Tom that parked the car here, as he is the only one with a car. 2.Good morning. Ive got an appointment with Miss Smith in the Personnel Department.Ah, good morning. You _ (be) Mrs. Peters.3. She _ (not leave) school, for her bike is still here. 4. I didnt hear the phone. I _(be) as

6、leep. 5. I cant find my purse anywhere. You _ (lose) it while shopping. 6. She looks very happy. She _ （pass） the exam. I guess so. Its not difficult after all. 7. Tom _(play) basketball on the play ground now for I saw him in the library a moment ago.考點3：can 用在肯定句表“有時會, 可能會”與 must表推測用法的區別比較：a. Taki

7、ng the bullet train can be dangerous.b. Look. A bullet train has fallen off the track. An accident must have happened.【鞏固練習】1. a. Accidents _ happen to any drunken driver.b. A driver is sleeping in the car which is parked in the middle of the road. He _be a drunken driver. 2. a. Jeff won the first p

8、rize again in the maths contest. He _ be a very clever boy. b. Jeff is a very clever boy, but he _ be very dull sometimes.3. It is usually warm in my hometown in March, but it _ be rather cold sometime. A. must B. can C. should D. would4. The World Wide Web is sometimes jokingly called the World Wid

9、e Wait because it _be very slow. A can B. should C. must D. will 考點4 should/ ought to 表推測 She promised to come by 10. But she may be late since the road is very crowded these days. She promised to come by 10. She should be here at any moment. (表估計，預期的事，常譯為“按道理應該”)【鞏固練習】1.When can I come for the phot

10、os? I need them tomorrow afternoon. They _ be ready by 12:00. A. can B. should C. might D. need2. There _ be any difficulty about passing the road test since you have practiced a lot in the driving school.A. mustnt B. shant C. shouldnt D. neednt3. The soccer team has been doing well this season, so

11、they _ win the championship. A. should B. might C. would D. could二、表示請求、允許、許諾 考點一、 may/might, can/could, will/would , shall 提出建議，請求對方許可 _ we wait outside?_ you wait outside? _ he wait outside?【鞏固練習】1. I take the book out? I'm afraid not.A. Will B. May C. Must D. Need 2. You park here! Its an eme

12、rgency exit.A. wouldnt B. neednt C. couldnt D. mustnt3. Could I use your phone? Yes, of course you _. A. can B. could C. must D. shall4. May I take this book out of the reading room? No, you _. You read it in here. (2010陜西卷) Amightn't Bwon't Cneedn't Dmustn't5. _ he come to see you?

13、- Of course, please. And Id rather he told me the truth. A. Will B. Shall C. Would D. Do6. -Whats the name? - Khulaif. _I spell that for you. A. Shall B. Would C. Can D. Might7. Mr.Smith, _ he have all these letters typed for you right now? He _. They should be ready by 10 oclock this morning. A. wi

14、ll; must B. shall; has to C. need; will D. would; ought to考點二、Shall 用于二、三人稱，表示保證、承諾、威脅、警告 或規定You shall be punished if you insist on doing it this way.If he passes the exam he shall have a holiday.The law shall come into effect on May 1st.【鞏固練習】1- Excuse me, but I want to use your computer to type a

15、report. - You have my computer if you don't take care of it. A. shan't B. might not C. needn't D. shouldn't 2. I havent got the reference book yet, but Ill have a test on the subject next month.Dont worry. You _ have it by Friday. (2010江蘇卷) A. could B. shall C. must D. may3.-Dont for

16、get to take your cell phone.-But its just been announced that no students _ bring cell phone. A. shall B. may C. can D. will4What does the sign over there read?No person _ smoke or carry a lighted cigarette in this area. Awill Bshall Cmay Dmust5.“Attention，please.Whoever can answer one of my questio

17、ns _receive a prize，” the teacher said in class.Amight Bshall Cshould Dwould6. Mum，would you please buy me an MP5 player?If you can help do the dishes the whole vacation，you _have one as a reward.Amust Bneed Cwould Dshall三、表必要性考點1 must & have toMust we hand in our exercises today?Yes，you must.是的

18、，必須交。(肯定回答)No，you neednt (you dont have to)不，May I smoke here ? No, you mustnt.(考點2 need 翻譯： 你沒有必要工作到那么晚 you dont have to work so late. You dont need to work so late You neednt work so late.比較：Did you work very late last night? No, I didnt. I didnt need to because I had finished all the assignments.

19、 Did you work very late last night? Yes. I had to prepare for the English test. You neednt have worked late last night because the English test has been cancelled.【鞏固練習】-It was Sunday today, and I _ up very early. -So you really had a good rest.A. didnt need to get B. neednt have got C. neednt to ge

20、t D. dont need get考點3 must .表示偏要， 偏偏（做或發生不愉快的事情） Must you worry her with questions, just when she is busy cooking dinner? Just when we are ready to go away for the holidays, the baby must catch a cold.【鞏固練習】1Look at the floor, Tom！_you watch TV while having a meal?AShould BCouldCWould DMust2. I have

21、 told you the truth. _ I keep repeating it?AMust BCan CMay DWill3.If you _ smoke, please go outside because this is a non-smoking office.A. mustB. shouldC. canD. may4.If you _ talk about it with me, please wait till I finish my work at hand.A、can B、may C、must D、should考點 4 should / ought to 表示義務，職責等

22、Should have done / ought to have done 本應該做的事 沒做I think todays children should really learn to respect their elders.Humans ought to stop polluting nature.You ought not to be late for such an important. 【鞏固練習】1. There was a lot of fun at yesterdays party. You _ come, but why didnt you? A. must have B.

23、 should C. need have D. ought to have2. Look! Tom is too sleepy to workHe _ up watching TVAmustn't have stayed Bshouldn't have stayedCmustn't stay Dought not to say五、表習慣性或特性 考點1 will /would used to美文欣賞Every time I see a girl playing with her father, I will think of my father and the days

24、 I spent with him. Every Sunday morning, we would go for a drive. Daddy would get into the car and turn the key. Inevitably（不可避免地）, nothing would happen. He would push every button on the dashboard, but the car still wouldnt start. At last he would sigh and say to me, “Honey, the car just wont start until you give me a kiss.” So I did, and it did, and off we went. For a long time I believed there was some kind of connection between kissing and car starting.【鞏固練習】1.Oil will float on the water.2. Every time Big Big wolf fa