unit1 grammar-modal verbs[下学期]
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| 名称 | unit1 grammar-modal verbs[下学期] |  | |
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| 文件大小 | 283.6KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 通用版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2007-03-18 17:10:00 | ||
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课件28张PPT。Unit1 Festivals around the worldGrammarModal verbs 情态动词·情态动词(1).?情态动词 + 动词原形.?
(2). 否定式: 情态动词 + not +动词原形.(3).?情态动词没有人称, 数的变化, 但have to 除外. 常见的情态动词有：can, could, may, might, will, would, must, have to, ought to, need, dare, shall, should 等。 特征can和could的用法1. No one could pass the exam last week.2. Could you lend me a pen,please?3. You can stay here until your father comes to pick
you up .5. He can’t be at home at this time. (能力)(推测/可能性)(允许)(请求)can或could表推测时, 常用于否定句和疑问句.4. Can this news be true?
How can you be so foolish? (怀疑)(惊异)表怀疑或惊异主要用于否定句,疑问句和感叹句中They can't have gone out because the light is still on.can/could not have done表示对过去的推测,“可能已经做了某事”某事”。--- Isn’t that Ann’s husband over there?
--- No,it_________be him. I’m sure he doesn’t wear glasses.
A.can’t B.must not C.won’t D.may not
The room is in a terrible mess; it ____ cleaned.
A. can’t have been B. couldn’t be
C. may have been D. would be
AA How____ you say that you really
understand the whole story if you
have covered only part of the article?
A. can
B. must
C. need
D. mayAcan/could 和be able to的用法1. can, be able to都可表示“能力”can的主语是人或物,be able to的主语是人 She can/be able to sing the song in English.
This machine can make you feel comfortable.2. can只用于现在式和过去式(could)。
be?able?to可以用于各种时态。 We’ll be able to finish the work soon.
I haven’t been able to see the film.3.表示特定的某一过去能力或成功地做了某事时，只能
用be?able?to, 不能用could。 He?was?able?to?flee?Europe?before?the?war?broke?out. ??
He?was?able?to?swim?halfway?before?he?got?tired. The fire spread through the hotel very quickly but every one_________ get out.
A.had to B.would C.could D.was able to
D-- Could you lend me your dictionary?-- Yes, you can. could的语气比can委婉.
在回答时不用could, 而用can.may和 might的用法---May I use your pencil?
---Yes, you may.3. She may not be working now.
John might be at home now.(请求)2.You may go now.(许可)(推测/可能性)may/might表推测时, 用于肯定句和否定句中。She may/might have gone to the cinema. They may/might not have received our telephone.4. May you succeed!
May?God?bless?you! may/might (not) have done表示对过去的推测.(祝愿) ---Where is Emma?
---I can’t say for sure where she is, but she___ be
out shopping.
A. can B. should C. must D. mayD--May I /Might we …？--Yes, please.或Certainly/Yes,you may.( 肯定回答)-- Please don’t.或No, you mustn’t.( 否定回答)-- May/Might we leave now?
-- No, you mustn’t. /certainly.must的用法： 1. “必须”
(说话人的主观看法)You must talk to them about their study.Why must it rain on Sunday? 2. “偏偏要”He must be ill. He looks pale.3. “一定/肯定” 推测，暗含很大的可能性。must表推测时, 只能用于肯定句.We mustn’t waste our time.4. must not “不准/不可以”表禁止---- May I take this magazine out? ---- No, you mustn’t.must 用于一般疑问句的时候，肯定回答应用yes, you must 或者 I’m afraid so, 其否定回答应用 needn’t 或者 don’t have to。5. Must的否定式: need not 或 don’t have to-- Must I finish my homework now?
-- yes, you must. 或
-- No, you needn’t / you don’t have to. will和would的用法：1. will do 用于构成将来时是助动词。I will tell you something important.2. The whole family will come for dinner .
She asked if I would help.(承诺和意愿)3. Would you join us?表示请求，此时用would语气较委婉。4. In those days,whenever I had difficulties, I would go to
Mr.Shen for help.(总是/总会)would+do表示过去的习惯, “总是/总会”shall 的用法：Perhaps I shall pay a visit to England this winter.Shall与第一人称连用, 表“将来”.2. You shall do as I say.
Tell him that he shall have the book tomorrow.
Nothing shall stop me doing it. (命令)(允诺)(决心)shall用于第二、三人称的陈述句表示说话人给对方的允诺、警告、命令、威胁等。3. Shall I open the window for you？（征求意见）
Shall he fetch some water for you？（请求）shall在疑问句中, 与第一、三人称连用，表示请求或征求对方的意见。should 的用法：You should keep your promise.1. should表示劝告, 建议, 命令.It’s nearly 7 o’clock. Dad should come home soon.
2. should + 动词原形用于陈述句, 表示推测, “应该”. You should have told her the truth earlier.
She shouldn’t have left without saying a word.3. should have done “本应该…”. 表示“本应该 做的
事但没有做”should not have done表示“不该做的事但却做到了.”1.---There were already five people in the car but they managed to take me as well.
---It ____a comfortable journey. ( )
A. can't be B. mustn't have been
C. shouldn't be D. couldn't have been
D2.The fire spread through the hotel very quickly but everyone ___ get out. ( )
A. had to B. would
C. could D. was able to
DEXERCISES4. Peter ___ come with us tonight, but he isn’t very sure.
must B. can C. may D. willC5. --- Could I call you by your first name? --- Yes, you____.
A. will B. could C. may D. mightC6. Sorry, I ’m late. I ___ have turned off the alarm clock and gone back to sleep again.
might B. should C. can D. willA7.--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’t B. might not C. needn’t D. shouldn’tA8. ---When can I come for the photos ? I need them tomorrow afternoon.
---They _____be ready by 12 : 00 .
A. can B. should C. might D. needB9. With so much work on hand, you ____to see the game last night.
A. mustn’t go B. could have gone
C. shouldn’t go D. shouldn’t have goneD10.Johnny, you ______play with the knife, you ____hurt yourself. ( )
A. won't ; can't B. mustn't ; may
C. shouldn't ; must D. can't ; wouldn'tB11. I missed the bus, so I ___ go home on foot.
A. must B. may C. can D. had toD 2. A: ______ Xiao Feng find the origin of Easter from that book?
B: No, he _____________. 1. A: ______ you like to go to a special event with us on Saturday?
B: Yes, I _____________________ _________.Would’d like to go with you on SaturdayCouldcouldn’t find itExercise 3. A: _____ I go with my friend to the harvest festival?
B: Yes, you _________________ ________. 4. A: If I want to be a doctor _______ I study science?
B: Yes, you ____________________. should study scienceMay may go ( with your shouldfriends )5. A: He is very handsome. ____ he play the role of the prince?
B: No, he _______________________ ______. can’t play the role of theCanprince 6. A: The neighbour’ s children are older this year. _______________ they stop playing tricks at Halloween?
B: Perhaps, they _______.Mightor Shouldmightmust 和have?to1.Must用于一般问句中,肯定回答用must否定式用?needn’t或don’t have to，做?“不必”,mustn’t表示“禁止，不允许” ?— Must?I?finish?all?assignments?at?a?time? ??—Yes, you must.
No,?you?needn't. You?mustn’t?get?down?while?the?car?is?still? moving. I don’t like this TV set. We must buy a new one. There was no more bus. They had to walk home.2.表示“必须”这个意思时，must?和have?to?稍有区别。must着重说明主观看法，have?to?强调客观需要。另外，have?to?能用于更多时态。 ?You?must?be?the?new?teacher. ?
He?must?be?joking. There?is?nobody?here.?They?must?have?all gone?home. 3.must表示对某人某事的猜测，?作“准是”，“一定” ，一般用于肯定句中。对过去发生的事情作肯定判断用must have done He must come and worry her with question, just when she was busy cooking the dinner. Of course，after I gave her my advice，she must go and do the opposite。4. Must表示“偏要，硬要”，指做令人不快的事情Thank you
(2). 否定式: 情态动词 + not +动词原形.(3).?情态动词没有人称, 数的变化, 但have to 除外. 常见的情态动词有：can, could, may, might, will, would, must, have to, ought to, need, dare, shall, should 等。 特征can和could的用法1. No one could pass the exam last week.2. Could you lend me a pen,please?3. You can stay here until your father comes to pick
you up .5. He can’t be at home at this time. (能力)(推测/可能性)(允许)(请求)can或could表推测时, 常用于否定句和疑问句.4. Can this news be true?
How can you be so foolish? (怀疑)(惊异)表怀疑或惊异主要用于否定句,疑问句和感叹句中They can't have gone out because the light is still on.can/could not have done表示对过去的推测,“可能已经做了某事”某事”。--- Isn’t that Ann’s husband over there?
--- No,it_________be him. I’m sure he doesn’t wear glasses.
A.can’t B.must not C.won’t D.may not
The room is in a terrible mess; it ____ cleaned.
A. can’t have been B. couldn’t be
C. may have been D. would be
AA How____ you say that you really
understand the whole story if you
have covered only part of the article?
A. can
B. must
C. need
D. mayAcan/could 和be able to的用法1. can, be able to都可表示“能力”can的主语是人或物,be able to的主语是人 She can/be able to sing the song in English.
This machine can make you feel comfortable.2. can只用于现在式和过去式(could)。
be?able?to可以用于各种时态。 We’ll be able to finish the work soon.
I haven’t been able to see the film.3.表示特定的某一过去能力或成功地做了某事时，只能
用be?able?to, 不能用could。 He?was?able?to?flee?Europe?before?the?war?broke?out. ??
He?was?able?to?swim?halfway?before?he?got?tired. The fire spread through the hotel very quickly but every one_________ get out.
A.had to B.would C.could D.was able to
D-- Could you lend me your dictionary?-- Yes, you can. could的语气比can委婉.
在回答时不用could, 而用can.may和 might的用法---May I use your pencil?
---Yes, you may.3. She may not be working now.
John might be at home now.(请求)2.You may go now.(许可)(推测/可能性)may/might表推测时, 用于肯定句和否定句中。She may/might have gone to the cinema. They may/might not have received our telephone.4. May you succeed!
May?God?bless?you! may/might (not) have done表示对过去的推测.(祝愿) ---Where is Emma?
---I can’t say for sure where she is, but she___ be
out shopping.
A. can B. should C. must D. mayD--May I /Might we …？--Yes, please.或Certainly/Yes,you may.( 肯定回答)-- Please don’t.或No, you mustn’t.( 否定回答)-- May/Might we leave now?
-- No, you mustn’t. /certainly.must的用法： 1. “必须”
(说话人的主观看法)You must talk to them about their study.Why must it rain on Sunday? 2. “偏偏要”He must be ill. He looks pale.3. “一定/肯定” 推测，暗含很大的可能性。must表推测时, 只能用于肯定句.We mustn’t waste our time.4. must not “不准/不可以”表禁止---- May I take this magazine out? ---- No, you mustn’t.must 用于一般疑问句的时候，肯定回答应用yes, you must 或者 I’m afraid so, 其否定回答应用 needn’t 或者 don’t have to。5. Must的否定式: need not 或 don’t have to-- Must I finish my homework now?
-- yes, you must. 或
-- No, you needn’t / you don’t have to. will和would的用法：1. will do 用于构成将来时是助动词。I will tell you something important.2. The whole family will come for dinner .
She asked if I would help.(承诺和意愿)3. Would you join us?表示请求，此时用would语气较委婉。4. In those days,whenever I had difficulties, I would go to
Mr.Shen for help.(总是/总会)would+do表示过去的习惯, “总是/总会”shall 的用法：Perhaps I shall pay a visit to England this winter.Shall与第一人称连用, 表“将来”.2. You shall do as I say.
Tell him that he shall have the book tomorrow.
Nothing shall stop me doing it. (命令)(允诺)(决心)shall用于第二、三人称的陈述句表示说话人给对方的允诺、警告、命令、威胁等。3. Shall I open the window for you？（征求意见）
Shall he fetch some water for you？（请求）shall在疑问句中, 与第一、三人称连用，表示请求或征求对方的意见。should 的用法：You should keep your promise.1. should表示劝告, 建议, 命令.It’s nearly 7 o’clock. Dad should come home soon.
2. should + 动词原形用于陈述句, 表示推测, “应该”. You should have told her the truth earlier.
She shouldn’t have left without saying a word.3. should have done “本应该…”. 表示“本应该 做的
事但没有做”should not have done表示“不该做的事但却做到了.”1.---There were already five people in the car but they managed to take me as well.
---It ____a comfortable journey. ( )
A. can't be B. mustn't have been
C. shouldn't be D. couldn't have been
D2.The fire spread through the hotel very quickly but everyone ___ get out. ( )
A. had to B. would
C. could D. was able to
DEXERCISES4. Peter ___ come with us tonight, but he isn’t very sure.
must B. can C. may D. willC5. --- Could I call you by your first name? --- Yes, you____.
A. will B. could C. may D. mightC6. Sorry, I ’m late. I ___ have turned off the alarm clock and gone back to sleep again.
might B. should C. can D. willA7.--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’t B. might not C. needn’t D. shouldn’tA8. ---When can I come for the photos ? I need them tomorrow afternoon.
---They _____be ready by 12 : 00 .
A. can B. should C. might D. needB9. With so much work on hand, you ____to see the game last night.
A. mustn’t go B. could have gone
C. shouldn’t go D. shouldn’t have goneD10.Johnny, you ______play with the knife, you ____hurt yourself. ( )
A. won't ; can't B. mustn't ; may
C. shouldn't ; must D. can't ; wouldn'tB11. I missed the bus, so I ___ go home on foot.
A. must B. may C. can D. had toD 2. A: ______ Xiao Feng find the origin of Easter from that book?
B: No, he _____________. 1. A: ______ you like to go to a special event with us on Saturday?
B: Yes, I _____________________ _________.Would’d like to go with you on SaturdayCouldcouldn’t find itExercise 3. A: _____ I go with my friend to the harvest festival?
B: Yes, you _________________ ________. 4. A: If I want to be a doctor _______ I study science?
B: Yes, you ____________________. should study scienceMay may go ( with your shouldfriends )5. A: He is very handsome. ____ he play the role of the prince?
B: No, he _______________________ ______. can’t play the role of theCanprince 6. A: The neighbour’ s children are older this year. _______________ they stop playing tricks at Halloween?
B: Perhaps, they _______.Mightor Shouldmightmust 和have?to1.Must用于一般问句中,肯定回答用must否定式用?needn’t或don’t have to，做?“不必”,mustn’t表示“禁止，不允许” ?— Must?I?finish?all?assignments?at?a?time? ??—Yes, you must.
No,?you?needn't. You?mustn’t?get?down?while?the?car?is?still? moving. I don’t like this TV set. We must buy a new one. There was no more bus. They had to walk home.2.表示“必须”这个意思时，must?和have?to?稍有区别。must着重说明主观看法，have?to?强调客观需要。另外，have?to?能用于更多时态。 ?You?must?be?the?new?teacher. ?
He?must?be?joking. There?is?nobody?here.?They?must?have?all gone?home. 3.must表示对某人某事的猜测，?作“准是”，“一定” ，一般用于肯定句中。对过去发生的事情作肯定判断用must have done He must come and worry her with question, just when she was busy cooking the dinner. Of course，after I gave her my advice，she must go and do the opposite。4. Must表示“偏要，硬要”，指做令人不快的事情Thank you