英语语法情态动词练习

第一篇：英语语法情态动词练习

英语语法教学微课教案（情态动词can和could）

一、Teaching Content: Topic:Unit 5 Can you play the guitar? Grammar：Using “can”/ “could” to talk about ability

二、Teaching Aims: 1.Use can talk about the ability at present. 2.Use could talk about ability in the past.

三、Teaching Key and Difficult Points: How to use “can” and “could” to express ability in the present and past.

四、Teaching Methods: Task-Based Language Teaching Method

五、Teaching Procedures: Step 1：Warming up

Task 1: Revision T: What can you do now? S1: I can sing. S2: I can draw S3: I can dance. T: Can you ride a bike / swim / fly a kite / play football / play chess? Ss:Yes , I can. / No, I can’t.

Task 2: Playing a game T: Now let us play a game. Five students come to the front and perform for to my instructions.and gestures.The others answer my questions. T : What can she do? Ss : She can ride a bike /swim/ fly a kite/ play football / play chess . T: Can she swim/ fly a kite/play football /play chess. Ss: Yes ,She can? No, she can’t. T: Say the whole sentences: eg: A can ride a bike. He can’t / cannot swim. Step 2: Presentation T: Can you ride a bike now? S1:Yes. I can T:Could you ride a bike five years ago ?

Yes, I could./ No, I couldn’t ( Help him answer) S1:Yes, I could./ No, I couldn’t. T: we can use “could” t talk about the past

.e.g I can play computer now .But, last year I couldn’t play. T: Could you row a boat last year? S1:Yes I could . No, I couldn’t.

T: Could she he row a boat last year?( Ask other students) Ss: Yes she he could . No she he couldn’t T:Yes , A could ride a bike five years ago. He couldn’t swim five years ago.

the class according (Teach the students to say the whole sentences): A could ride a bike five years ago. He couldn’t swim five years ago.) (Ask other students in the same ways) Step 3: Practice :work in pairs T: Ask your partner more questions eg: Could he / she …?

(Yes, he / she could. / No, he / she couldn’t.) ... Step 4: Production Task 3: Explanation T: Let’s work out the rule.

① 肯定句式: can could

② 否定句式: can’t couldn’t

③ 疑问句式: Can „?Could „?

T: We can use “am (is , are) able to “ instead of “can”,and “was (were) able to “ instead of “could“.

eg.①Mike can sing more than 20 English songs.

Mike is able to …

②She could speak English when she was four. She was able to…

T: Please give more examples.to practice them. Step 5: Summary T:In this class, we have learnt the use of can and could about talking about abilities .Who knows the differences between “can” and “could” Step 6: Homework Finish off the practice on the workbooks ,Fill in the blank with can/could

第二篇：高一英语情态动词与虚拟语气

选择题 1.A.can’t

. B.couldn’t

C.may not

D.might not .

D.had been broken D.can’t; shouldn’t

2.A.breaks 3. B.has broken.C.were broken

.

A.won’t; can’tB.mustn’t; may C.shouldn’t; must

4.--Shall I tell John about it?

I’ve told him already. B.wouldn’t

C.mustn’t

D.shouldn’t

A.needn’t5.--Alice, why didn’t you come yesterday?

.

B.would B.would

C.was going to

C.could

D.did get out. D.was able to

A.hadA.had to

6.7.--When can I come for the photos? I need them tomorrow afternoon.

--They________ be ready by 12:00. A.can

B.shouldC.mightD.need

8.Peter_______ come with me tonight, but he’s not sure yet.

A.mustB.mayC.canD.will 9.--Will you stay for lunch?

--Sorry,________.My brother is coming to see me. A.I mustn’t

B.I can’t

C.I needn’t

D.I won’t

10.--Are you coming to Jeff’s party?

--I’m not sure.I_______ go to the concert instead. A.must

B.would

C.should

D.might

11.The two strangers talked as if they _______ friends for years.

—1—

A.should be

-- Of course. B.would beC.have beenD.had been 12.-- The room is so dirty, ________we clean it?

A.WillB.Shall

A.needn’tC.WouldD.Do 13.Michael_______ be a policeman, for he’s much too short. B.can’tC.shouldD.may

14.--Could I call you by your first name?

--Yes, you________.

A.willB.could

license________ take an eye test.

A.canB.mustC.wouldD.may

D.should C.mayD.might 15.According to the local regulations, anyone who intends to get a driver’s 16.I should have been there, but I ______not find the time. A.wouldB.couldC.might

17.--Write to me when you get home.--_______.

D.I can A.I mustB.I shouldC.I will

ceremony? 18.Mr Bush is on time for everything.How ________it be that he was late for the opening

A.canB.shouldC.mayD.must

19.You can’t imagine that a well-behaved gentleman_______be so rude to a lady.

A.mightB.needC.shouldD.would

20.--I hear you’ve got a set of valuable Australian coins._________I have a look? --Yes, certainly.

A.DoB.MayC.ShallD.Should

21.--Is John coming by train?

--He should, but he________not.He likes driving his car.

A.mustB.canC.need

papers have been collected.

—2— D.may 22.It has been announced that candidates_________remain in their seats until all the

A.canB.willC.mayD.shall

23.Naturally, after I told her what to do, my daughter_______ go and do the opposite !

A.mayB.canC.mustD.should

24.--I hear they went skiing in the mountains last winter.

--It_______ true because there was little snow there.

A.may not beB.won’t beC.couldn’t beD.mustn’t be

25.A left-luggage office is a place where bags__________ be left for a short time, especially at a railway station.

A.shouldB.canC.mustD.will

26.How_________ you say that you really understand the whole story if you have covered only part of the article?

A.canB.mustC.needD.may

27.--Who is the girl standing over there?

--Well, if you______ know, her name is Mabel.

A.mayB.canC.mustD.shall

28."The interest_________ be divided into five parts, according to the agreement made by both sides," declared the judge.

A.mayB.shouldC.mustD.shall

29.--I don’t mind telling you what I know.

--You_________. I’m not asking you for it.

A.mustn’tB.may notC.can’tD.needn’t

30.I________ pay Tracy a visit, but I am not sure whether I will have time this Sunday.

A.shouldB.mightC.wouldD.could

31.I often see lights in that empty house.Do you think I_______ report it to the police?

A.shouldB.mayC.willD.can

32.-- Excuse me, but I want to use your computer to type a report.

-- You________ have my computer if you don’t take care of it.

A.shan’tB.might notC.needn’tD.shouldn’t

33.--Excuse me .Is this the right way to the Summer Palace?

—3—

--Sorry, I am not sure.But it________be.

A.mightB.willC.mustD.can

34.--Mum , I’ve been studying English since 8 o’clock._________ I go out and play with Tom for a while.

--No, I’m afraid not .Besides , it’s raining outside now .

A.Can’tB.Wouldn’tC.May notD.Won’t

35.Children under 12 years of age in that country________be under adult supervision when in a public library.

A.mustB.mayC.canD.need

36.--Isn’t that Ann’s husband over there?

--No, it__________be him--I’m sure he doesn’t wear glasses.

A.can’tB.must notC.won’tD.may not

37.You ________ be tired--you’ve only been working for an hour.

A.must notB.won ’t beC.can’tD.may not

38.--Tom graduated from college at a very young age.

--Oh, he________have been a very smart boy then.

A.couldB.shouldC.mightD.must

39.You might just as well tell the manufacturer that male customers ______ not like the design of the furniture.

A.mustB.shallC.mayD.need

40.Tom, you___________leave all your clothes on the floor like this!

A.wouldn’tB.mustn’tC.needn’tD.may not

D.Need 41.John, look at the time.___________you play the piano at such a late hour?A.MustB.CanC.May

it________ be very slow.

A.shouldB.mustC.willD.can 42.The World Wide Web is sometimes jokingly called the World Wide Wait because

43.--Lucy doesn’t mind lending you her dictionary.

-- She_________.I’ve already borrowed one.

—4—

A.can’tB.mustn’tC.needn’tD.shouldn’t

44.--I’ve taken someone else’s green sweater by mistake.

--It_______Harry’s.He always wears green.

A.has to be

A.can’tB.will beC.mustn’t beD.could be 45.You know he is not going to let us leave early if we_______get the work done. B.may notC.shouldn’tD.mustn’t

46.--What’s the name?

--Khulaifi.________I spell that for you?

A.Shall

A.can’tB.WouldC.CanD.Might 47.There’s no light on--they_______be at home. B.mustn’tC.needn’tD.shouldn’t

48.--Mr Gordon asked me to remind you of the meeting this afternoon.Don’t you forget it !

--OK, I_________.

A.won’tB.don’tC.willD.do

49.--Is Jack on duty today?

--It_________be him.It’s his turn tomorrow.

A.mustn’tB.won’tC.can’tD.needn’t

50.--I think I’11 give Bob a ring.

--You________.You haven’t been in touch with him for ages.

A.will

A.needB.mayB.mustC.have toC.shouldD.shouldD.can 51.We hope that as many people as possible_________join us for the picnic tomorrow.

52.Some aspects of a pilot’s job________be boring, and pilots often___________work at inconvenient hours.

A.can; have to

C.have to; may

53.--May I smoke here?

--If you________, choose a seat in the smoking section.

—5—B.may; can D.ought to; must

A.should

A.can

tough task.B.couldC.mayD.must 54.--Could I have a word with you, mum?B.must--Oh dear, if you______. C.mayD.should 55.Black holes ________ not be seen directly,so determining the number of them is a

A.canB.shouldC.mustD.need

56.-- How’s your tour around the North Lake? Is it beautiful?

-- It_________be, but it is now heavily polluted.

A.willB.wouldC.shouldD.must

57.In crowded places like airports and railway stations, you_______take care of your luggage.

A.canB.mayC.mustD.will

58.My MP4 player isn’t in my bag.Where _________ I have put it?

A.canB.mustC.shouldD.would

59.As a result of the serious flood, two -thirds of the buildings in the area________.

A.need repairing

C.needs repairingB.needs to repairD.need to repair

60.The boss has given everyone a special holiday, so we________go to work tomorrow.

A.can’tB.mustn’tC.needn’tD.shouldn’t

61.- What does the sign over there read?

--“No person_______smoke or carry a lighted cigarette, cigar or pipe in this area.”

A.willB.mayC.shallD.must

62.--What do you think we can do for our aged parents?

--You___________do anything except to be with them and be yourself.

A.don’t have toB.oughtn’t toC.mustn’tD.can’t

63.--Turn off the TV, Jack._________your homework now?

--Mum, just ten more minutes, please.

A.Should you be doing

B.Shouldn’t you be doing D.Will you be doing C.Couldn’t you be doing

—6—

第三篇：英语人教版八年级下册情态动词can和could微课教学设计()

初中英语语法教学微课教学设计(情态动词can和could)

教学思路: 本节课我教的是情态动词can和could作“能力”解时的区别。这节课我打算通过复习以前学过的情态动词can的用法，以及通过做游戏，让学生在轻松愉快的氛围中掌握can的用法，以及了解can和could的区别。

一、teaching content: topic: unit 5 can you play the guitar?

grammar：using “can”/ “could” to talk about ability

二、teaching aims: 1.use can talk about the ability at present. 2.use could talk about ability in the past.

三、teaching key and difficult points: how to use “can” and “could” to express ability in the present and past.

四、teaching methods: task-based language teaching method

五、teaching procedures: step 1：warming up

task 1: revision t: what can you do now? s1: I can sing. s2: I can draw s3: I can dance. t: can you ride a bike / swim / fly a kite / play football / play chess? ss: Yes , I can. / no, I can’t.

task 2: playing a game t: now let us play a game. five students come to the front and perform for the class according to my instructions. and gestures. the others answer my questions. t : what can she do? ss : she can ride a bike /swim/ fly a kite/ play football / play chess . t: can she swim/ fly a kite/play football /play chess. ss: yes ,she can? no, she can’t. t: say the whole sentences: eg: a can ride a bike. he can’t / cannot swim. step 2: presentation

t: can you ride a bike now? s1:yes. I can t: could you ride a bike five years ago ? yes, I could./ no, I couldn’t ( help him answer) s1:yes, I could./ no, I couldn’t.

t: we can use “could” t talk about the past

.e.g I can play computer now .but, last year i couldn’t play. t: could you row a boat last year? s1:yes I could . no, I couldn’t.

t: could she he row a boat last year?( ask other students) ss: yes she he could . no she he couldn’t t: yes , a could ride a bike five years ago. he couldn’t swim five years ago.

(teach the students to say the whole sentences): a could ride a bike five years ago. he couldn’t swim five years ago.) (ask other students in the same ways) step 3: practice :work in pairs t: ask your partner more questions eg: could he / she …?

(yes, he / she could. / no, he / she couldn’t.) ... step 4: production task 3: explanation t: let’s work out the rule. ① 肯定句式: can could ② 否定句式: can’t couldn’t ③ 疑问句式: can …?could …?

t: we can use “am (is , are) able to “ instead of “can”, and “was (were) able to “ instead of “could“.

eg.①mike can sing more than 20 English songs. mike is able to …

②she could speak English when she was four. she was able to…

t: please give more examples. to practice them. step 5: summary

t: in this class, we have learnt the use of can and could about talking about abilities .who knows the differences between “can” and “could” step 6: homework

finish off the practice on the workbooks ,fill in the blank with can/could

第四篇：情态动词教案

情态动词

1. 概念: 情态动词: 表示说话者的某些观点或态度的词语.如 “能” , “或许” , “必须” , “需要” , “应该” 等. 2. 情态动词主要有: can, may, must, need, should, … 这些情态动词后面 + 动词原形. 3. 用法

① can ⑴ 表示能力,意为”能, 会”. 如:

eg: I can play basketball. 我会打篮球.

---Can you play basketball ? 你会打篮球吗? --- Yes, I can. / No, I can’t. 是的, 我会. / 不, 我不会.

⑵ 表示怀疑、猜测，常用 be 连用, 放在否定句和疑问句中。如：

eg: He can’t be in the room. 他一定不在房间里.

⑶ 表示请求或允许, 多用于口语中, 意为”可以”, 相当于 may. 如:

eg: You can go now. 你现在可以走了.

② could ⑴ 是can 的过去式, 表示过去的能力. 如:

eg: I could swim when I was a child. 当我还是一个小孩子的时候我就会游泳了.

⑵ couldn’t: “不能” 用could 提问肯定和否定回答分别用 could, 和 couldn’t.

如:

eg: --- Could you skate last year? 你去年会滑冰吗?

--- Yes, I could. / No, I couldn’t. 是的, 我会. / 不, 我不会.

③ may ⑴ 表示推测, 意为“可能; 或许” 用于肯定句中.

eg: He may be a teacher. 他或许是一个老师.

⑵ 表示请求、许可， 意为”可以” 如: eg: ---May I borrow your book? 我可以借你的书吗?

--- Yes, you can. / No, you mustn’t. 是的, 可以. / 不, 你你禁止借书. 注意: 当由may 来提问的时候, 肯定回答我们用Yes, you can. 否定回答用 No, you mustn’t. ④ must ⑴ 表示“必须、应该“;

eg: You must do your homework. 你必须做作业.

⑵ 表示推测, “一定” 常与be 动词连用. eg: He must be in the classroom. 他一定在教室.

⑶ must + not = mustn’t 禁止

eg: You mustn’t smoke. 禁止吸烟.

⑷ must 放于句首提问, 肯定回答Yes, you must. 否定回答 No, you needn’t.

⑸ must 与 have to 的区别：

must强调主观的看法.

have to 强调的是客观因素. eg: I must do my homework. 我必须做作业.(个人看法)

I have to go home now, because my mother is ill. 我不得不回家，因为我妈妈病了.(客观原因所导致)

⑤ need ⑴ 作情态动词使用后跟动词原形. You needn’t come here so early.

⑵ 作实义动词使用后接to do, He needs to drink some water. 他需要喝些水. 变否定句: He doesn’t need to drink any water.

变疑问句: Does he need to drink any water? Yes, he does. / No, he doesn’t.

⑥ should “应该” 一般指应尽的某种义务.

eg: As a student, we should finish our homework. 作为一个学生，我们应该完成作业.

练习：

(

) 1. Mr Wang ______ be in Nanjing now, he went to Beijing only this morning.

A. mustn’t

B. may not

C. can’t

D. needn’t (

) 2. –Must I saty at home, Mum?

--No, you ______.

A. needn’t

B. mustn’t

C. don’t

D. may not (

) 3. –Can you go swimming with us this afternoon?

--Sorry, I can’t. I _____ take care of my little sister at home because my mother is ill.

A. can

B. may

C. would

D. have to (

) 4. –May I go to the cinema, Mum? --Certainly. But you ______ be back by 11 o’clock.

A. can

B. may

C. must

D. need (

) 5. To make our city more beautiful, rubbish ______ into the river.

A. needn’t be thrown

B. mustn’t be thrown

C. can’t throw

D. may not throw (

) 6. –May I go out to play basketball, Dad? --No, you ______. You must finish your homework first. A. mustn’t

B. may not

C. couldn’t

D. needn’t (

) 7. –Where is Jack, please ?

--He _____ be in the reading room. A. can

B. need

C. would

D. must (

) 8. –Who is the man over there? Is it Mr Li?

--No, it ______ be him. Mr Li is much taller. A. musn’t

B. may not

C. can’t

D. needn’t

(

) 9. These books ______ out of the reading room. You have to read them here.

A. can’t take

B. must be taken

C. can take

D. mustn’t be taken (

) 10. –Mum, may I watch TV now?

--Sure, but you ______ help me with my housework first.

A. can

B. may

C. must

D. could (

) 11. The boy said he had to speak English in class, but he ______ speak it after calss.

A. could

B. didn’t have to

C. might

D. shouldn’t (

) 12. –Must we hand in the papers now?

--No, you ______.

A. can’t

B. may not

C. mustn’t

D. needn’t (

) 13. John ______ go there with us tonight, but he isn’t very sure about it.

A. must

B. can

C. will

D. may (

) 14. Even the top students in our class can’t work out this problem. So it ______ be very difficult.

A. can

B. may

C. must

D. need (

) 15. Put on more clothes. You ______ be feeling cold with only a shirt on.

A. can

B. could

C. would

D. must (

) 16. It’s still early. You ______.

A. mustn’t hurry

B. wouldn’t hurry

C. may not hurry

D. don’t have to hurry (

) 17. –May I stop here?

--No, you ______.

A. mustn’t

B. might not

C. needn’t

D. won’t (

) 18. A computer ______ think for itself, it must be told what to do.

A. can’t

B. couldn’t

C. may not

D. might not (

) 19. –Could I borrow your dictionary?

-- Yes, of course you _______.

A. might

B. will

C. can

D. should (

) 20. Peter ______ come with us tonight, but he isn’t very sure yet.

A. must

B. may

C. can

D. will (

) 21. Michael ______ be a policeman, for he’s much too short.

A. needn’t

B. can’t

C. should

D. may (

) 22. ______ I know your name?

A. May

B. Will

C. Shall

D. Must (

) 23. You ______ be more careful next time.

A. have to

B. may

C. must

D. might (

) 24. You ______ miss the lesson, though we ______ have it on Thursday.

A. mustn’t; needn’t

B. needn’t; mustn’t

C. mustn’t; mustn’t

D. needn’t; needn’t (

) 25. This pen looks like mine, yet it isn’t. whose ______ it be?

A. must

B. may

C. would

D. can (

) 26. What kinds of homes will we live in the future? Nobody ______ be sure, but scientists are working out new ideas now.

A. will

B. may

C. can

D. must (

) 27. I ______ like to know where you were born.

A. shall

B. should

C. do

D. may (

) 28. ______ you be happy!

A. Might

B. Must

C. Wish

D. May (

) 29. A teacher ______ do every exercise, but a student must.

A. may not

B. needn’t

C. can’t

D. mustn’t (

) 30. The matter ______ be changed into a gas, but it _______ be heated to its boiling point.

A. may; needn’t

B. may; can

C. mustn’t; needn’t

D. can; must (

) 31. Teachers and students ______ look coldly at you for a day or two, but there are friendly feelings in their hearts.

A. must

B. can

C. may

D. should (

) 32. Cars and buses ______ stop when the traffic lights turn red.

A. can

B. need

C. may

D. must (

) 33. –Do you think his story ______ true? --I don’ think so. But it sounds good.

A. must be

B. may be

C. can be

D. has to be (

) 34. Look out! The knife is very sharp. You ______ cut your finger.

A. need

B. must

C. should

D. may (

) 35. –How long ______ the book be kept?

--For two weeks, but you ______ return it on time.

A. can; may

B. may; need

C. can; must

D. must; need (

) 36. – May I have an apple, Mum?

--Certainly. But you ______ wash your hands first?

A. may

B. must

C. can

D. need (

) 37. –There is a lot of smoke coming out of the teaching building there.

--Really? It ______ be a fire, most probably.

A. can

B. ought to

C. may

D. must (

) 38. –Shall I tell John about the bad news?

--No, you ______. I think that will make him sad.

A. needn’t

B. wouldn’t

C. shouldn’t

D. mustn’t (

) 39. –Could I call you by your first name?

--Yes, you ______.

A. will

B. could

C. may

D. might (

) 40. –Let’s go to the cinema, shall we?

-- _______.

A. No, I can’t

B. Yes, I will

C. Yes, thank you

D. No, we’d better not (

) 41. --______ the man over there be our new teacher?

--He ______ be, but I’m not sure.

A. May; mustn’t

B. Can; may

C. Must; can’t

D. Can; can’t (

) 42. –Someone is knocking at the door. Who ______ it be?

--It ______ be Tom. He is still in the school.

A. can; can’t

B. can; mustn’t

C. might; could

D. might; may (

)43. Lily finished _______ the book yesterday.

A. read

B. reading

C. to read

D. reads (

) 44. Susan’s parents have bought a large house with a swimming pool. It _______ be very expensive.

A. must

B. can

C. mustn’t

D. can’t (

) 45. –The room is so dirty. _______ we clean it?

-- Of course.

A. Will

B. Would

C. Do

D. Shall

第五篇：情态动词小结

情态动词有：can(could)， may(might)， must，have to, shall(should)，will(would)，need, dare, ought to等。 一. 情态动词can, may, must用法 ㈠基本用法 1. can ⑴ 会，能够 --Can you swim? --Yes, I can. --No, I can‟t. ⑵ 口语中代替may. You can (may) park here. 你可以把车停在这里。(许可) 2. may允许，许可 --May I come in? --Yes, you may./Sure, come on in. --No, you mustn‟t./No, you can‟t.

No, you‟d better not. 3. must必须 --Must we finish the exercise today? --Yes, you must. --No, you needn‟t./No, you don‟t have to. 4. need 需要，必需--Need you go now?= -- Must you go now? --Yes, I must. --Yes, I must. --No, I needn‟t. --No, I needn‟t. (need作为情态动词，通常用在否定句和疑问句中。)

1 注意一：can 与be able to 都可以表示“能力”，区别是： ⑴ can只有现在和过去两种形式

I can play the piano. She couldn‟t play the piano when she was a little girl. ⑵ be able to ① 有更多的形式和时态

We shall/will be able to finish the work next week. I haven‟t been able to find the book. ② 指具体一次活动

I can swim but I am not able to cross the rough sea. 有时两者可以互换: I‟m not able to (can‟t) answer your question. Are you able to (Can you) type(打字)?

注意二：could的用法

⑴ 作为can的过去式，表示过去的能力。

When I was young I could climb any tree in the forest. 这时也可用was(were)able to ⑵ 用来代替can，婉转地提出请求，想法，建议等。回答这种情况下could引导的一般疑问句时，不用could，而要用can。 A: Could you tell me how to get to the hospital? B: Of cause, I can. 注意三：must的否定形式表示“不得”，“一定不要”，“禁止”

2 ① You mustn‟t take photos in here. It‟s forbidden(禁止). ② You mustn‟t drive without a license(驾照). ③ We mustn‟t be late, must we?

(与第4页对比，此must不表猜测,两回事。) 注意四：must的过去式是must，常用 had to 代替。 I had to see the dentist. 注意五：must 和 have to 都可以表示必须，但must表示说话人的主观看法，have to表示客观需要。 You must say sorry to me for that. You have to drive quickly, we have little time. 注意六：May+动词原形表“祝愿”。

May you succeed. May you be happy every day. ㈡ 可能性用法

1. can表示“可能性”① 疑问句：只能用can

Who can it be ?

② 否定句：cannot(can‟t)“不可能 It cannot be Jenny. 2. may表示“可能性”① 否定句：may not“可能不”

It may not be Jenny.

② 肯定句：“大概”，“也许”，“可能” It may be Jenny.

3 3. must表示“可能性”，只能用于肯定句，表推测：“一定是”，“准是”，“必是”，“必定”。

It must be Jenny. 小结表示“可能性”：

疑问句：只能用can 否定句：cannot(can‟t)“不可能”(反义词是must“准是”) may not“可能不”

肯定句：may “大概”

must“准是”(反义词是can‟t) 注意一: 在表示“可能性”时，凡是对过去事物的猜测，不管是疑问..句，否定句还是肯定句，都要用完成时。 ...① It must have rained last night. You see, the ground is still wet. ② He can‟t have been to your home. He doesn‟t know your address注意二：may+原型 表示 现在或将来的可能性。若表示对过去事物 .... 的猜测，则用完成时。 ③ He may come today.(tomorrow) He might come today.(tomorrow) (might语气更不肯定，不是may的过去时) ④ She might have called for help.她可能大声喊“救命”了。 请翻译下里句子：

1. Where can Wei Fang be?

4 2.That can‟t be Mary. She is in hospital. 3. Surely you can‟t be hungry. You‟ve only just had lunch. 4. The key can‟t be in the room. I have just searched it carefully. 5. You may/ can go and ask him. But he may not answer you. 6.A：Look! Someone is coming. Who can it be? B: It may be our headmaster. A: It can‟t be him. He has gone to Shanghai. B: It must be Mr. Zhang. He looks like our headmaster. 7. Anna may know Tom‟s address. 8. They may be waiting at the station. 9. I may be going to Europe next year. 10.He may have gone abroad. 11. I‟m afraid I must be going now. 12. You must be hungry. Have something to eat. 13. They must be twins. 14. There‟s a lot noise from next door. They must be having party a party. 15. I can‟t find him anywhere. He must have left. 16. I can‟t find my book. I must have left it at home. 17. You must have been thinking of something. 18. A: We went to Hainan for the winter vacation.

5 B: That must have been nice. 注意三：must表示猜测时的反义疑问句

⑴ “must be +表语”的结构，must表示肯定猜测时，含有“准是”，“势必”，“一定”等意义时，反义疑问句用“isn‟t/aren‟t+主语” They must be hungry after the long walk, aren‟t they? ⑵ “must have done” 表示猜测时，反义疑问句用“haven‟t/hasn‟t +主语”或“didn‟t+主语”

① They must have studied English before, haven‟t they? ② She must have met a fairy(仙女), hasn‟t she? ③ You must have seen the film last week, didn‟t you? ........解题秘笈：① 把must去掉 ② 找时间状语 ③ 重新组成一新句子 ④ 按新句子的时态造反义疑问句

① You must have been to Beijing, ___ __?

去掉must;无时状;重组成You have been to Beijing; 故答案为：haven‟t you ② You must have finished your homework yesterday, .........___ __?去掉must;时状为yesterday; 重组成 You finished your homework yesterday; 故答案为：didn‟t you 二.情态动词need的用法

⑴ need 表示“需要”，“必需”。作为情态动词，通常用在否定句和疑问句中。

① He needn‟t pay for it.( 情态动词)

6 =He doesn‟t need to pay for it.(行为动词) ② --Need you go now?= -- Must you go now? --Yes, I must. --Yes, I must. --No, I needn‟t. --No, I needn‟t. ⑵ need也可用作行为动词，其变化与一般动词相同。 ① We need to think it over.(肯定句) ② Does he need to know it?=Need he know it? ③ She didn‟t need to go.=She needn‟t go. ⑶ 按句型背：

need doing=need to be done ① The door needs painting. =The door needs to be painted. ② The old man needed looking after. = The old man needed to be looked after. 三.情态动词dare的用法

⑴ dare 表示“敢” 作为情态动词，通常用于否定句，疑问句或条件句中。dare 作为情态动词只有两种形式:dare, dared(当主语是第三人称单数时，dare 不加s) ① She dare not do so.(否定句) ② Dare he do it? (一般疑问句) ③ How dare you say I‟m unfair. (特殊疑问句) ④ Jump if you dare.有胆量你就跳。(条件句)

7 ⑵ 除了在“I dare say…” 这种习惯用语中，dare 在肯定句中作 情态动词的情况是很少的。(特殊用法，口语中常用，按句型背) ① I dare say you are wrong. ② A: If you die, who will get your money?

B: I dare say my uncle will. I have no other relatives. (亲戚) ⑶ dare 也可用作行为动词，其变化与一般动词相同。 ① Who dare to go? ② I don‟t dare (to) ask her. 问：此句中的to 为什么可以省略?

答: 当dare 作为①行为动词②在否定句中(两个条件必须同时具备)，其后面的不定式可以省略to。又如： ③ We didn‟t dare (to)try a shot. 四.情态动词shall和should的用法

⑴ shall 作为情态动词，用于二，三人称，表示说话人的意愿，有........“命令”，“警告”，“威胁”，“强制”，“允诺”等意思。(一人称用 shall是将来时)

① You shall do as I say.(命令) ② Tell him that he shall have the book tomorrow.(允诺) ③ You shall have whatever you want.(诺言) (我答应)你要什么我给你什么。

④ He shall be sorry for it one day.(警告)

8 有一天他会后悔的，我告诉你。

⑵ 在疑问句中，shall 用来征询对方意见或请求指示，用于一，三...........人称。译成“(你说)…好吗?”

① Where shall I wait for you? (你说)…

② 区别： Shall he come at once? (你说)他要不要立刻来?

(征求你的意见，情态动词)

Will he come at once?他将立刻来吗?(纯将来时) ③ Shall we start the meeting now?

④ Let‟s have a rest, shall we?(Let‟s 包括对方) 对比：Let us have a rest, will you?(Let us 不包括对方) 对于上述这类问句的回答，没有严格不变的肯定或否定模式。 ⑤ Shall I open the window? Yes, please. ⑥ Shall I get you some more tea? Yes, please. ⑦ Shall we have a meeting tomorrow? Yes ,I agree./ ( Well, I don‟t think we need to.) ⑧ Shall we go there by bike? All right.

( OK./Yes, I think so.) ⑨ Shall we go to the park? Good idea! ⑶ should 作为情态动词，译成“应该”

① You should keep your promise. ② We should be strict in all our work. 五.情态动词 will和would的用法

9 ⑴ will 表示“意志”,“意愿”,可用于各种人称。 .... ① I will(乐意，愿意) tell you all about it. ② We will help him if he asks us (to). ③ He won‟t go. ⑵ 在疑问句中，will用来征询对方意见或请求指示，用于二人称。...........译成“(你说)…好吗?”

① ---I‟m going down to the shop after school. Will you go with me? ---Yes,I will.( I‟m sorry, I can‟t) ② Will you please open the window? =Please open the window, will you? ③ Don‟t forget to give her some food and change her water, will you?(祈使句,用will you) ④ Be sure to write to us, will you?( 祈使句) ⑤ Let us have a look at your photos, will you? ⑥ –Alice, you feed the bird today,___? -But I fed it yesterday. A. do you B. will you C. didn‟t you D. don‟t you ⑶ 表示习惯性动作，有“总是”，“惯于”的意思。还表示“自然倾向”。

① He‟ll talk for hours if you give him the chance. ② Fish will die out of water.

10 would ⑴ would是will的过去式，表示过去时间的“意志”，“愿望”用于各种人称。

①“We will help you.” said they. They said that they would help us. ② No one would say that he couldn‟t see the Emperor‟s new clothes. ③ I promised that I would do my best.(按句型记) made a promise ⑵ 表示说话人的意愿或向对方提出请求，语气比will婉转。指的是现在时间。

① I‟d like to see your ten-speed bicycles. ② Would you like some bananas?( Bananas! I love them./ Yes, please./ No, thanks.) ③ --Would you like to see a film? --Yes, I‟d like to./I‟m glad to./I want to./ I‟d love to.…

/Thanks. I‟m afraid I won‟t be able to./Thanks. That would be nice. ④ --Would you like to come to supper? --Oh, thank you! I would love to. 注意：I‟d like to=I‟d love to=I would like to=I should like to =I would like to=I should love to.

11 ①--④按句型记

⑤ Would you tell me the way to the station?(比will 婉转) ⑶ 表示过去的习惯动作,“总是，惯于，过去常常”比used to 正式。且没有“现在已无此习惯”的含义。

① In winter, snow fell and the roofs of my old house would become thick, and all the trees would become white. ② She would sit like that for hours. ③ Every day she would get up at six o‟clock. ⑷ 表猜测

① It would be ten o‟clock when she left home. ② I‟d say she „s about 40. 六.情态动词ought to的用法

ought to=should“应该”，“应当” 否定形式oughtn‟t to= shouldn‟t ① You ought to visit your parents more often. = You should visit your parents more often. ② You oughtn‟t to make private phone calls in work time. = You shouldn‟t make private phone calls in work time. 七.情态动词had better的用法

had better表示“最好…”(had 常缩写为‟d) 否定形式为had better not ① You‟d better take a nap after lunch.

12 ② We‟d better wait for him. ③ You‟d better call a doctor. ④ They‟d better go home. ⑤ You‟d better not talk like that. 13