九年級教學案
題
5u3 語法復習 情態動詞型復習教學
目標
歸納語法情態動詞 鞏固練習 情態動詞重點
鞏固練習 情態動詞難點
歸納語法情態動詞教學
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教學內容
措施矯正
激情導入
搶答造句自主
預
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情態動詞
情態動詞有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情態動詞無人稱和數的變化；不能單獨使用，必須與其后的動詞原形構成謂語。
1. can, could
1) 表示能力（體力、知識、技能）。 例如：Can you lift this heavy box?（體力） ary can speak three languages.（知識） Can you skate?（技能） 此時可用be able to代替。Can只有一般現在時和一般過去式；而be able to則有更多的時態。
例如： I’ll not be able to come this afternoon. （一般將時）當表示“經過努力才得以 做成功某事”時應用be able to，不能用Can。如： He was able to go to the party yesterday evening in spite of the heavy rain.
2) 表示請求和允許。
例如：-----Can I go now? ---Yes, you can. / No, you can’t. 此時可與may互換。在疑問句中還可用could, might代替，但could, might 并不表示過去式，只是語氣更委婉。它們不能用于肯定句和答語中。
例如：--- Could I come to see you tomorrow? -- Yes, you can. (No, I’m afraid not.)
3) 表示客觀可能性（客觀原因形成的能力）。例如： They’ve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least.4) 表示推測（驚訝、懷疑、不相信的態度），用于疑問句、否定句和感嘆句中。
Can this be true? This can’t be done by him. How can this be true?
教學
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教學內容
措施矯正
交
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任
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2. may, might
1) 表示請求和允許。might比 may語氣更委婉，而不是過去式。否定回答時可用can’t 或mustn’t，表示“不可以，禁止”。 例如：
----ight/ ay I smoke in this room? --- No, you mustn’t.
---- ay/ight I take this book out of the room?
--- Yes, you can. (No, you can’t / mustn’t. ) 用ay I...？征徇對方許可時比較正式和客氣，而用Can I...？在口語中更常見。
2）用于祈使句，表示祝愿。 例如：ay you succeed!
3) 表示推測、可能性（不用于疑問句）。might不是過去式，它所表示的可能性比may小。 例如：He may /might be very busy no
Your mother may /might not know the truth.
3. must, have to
1) 表示必須、必要。例如： You must come in time.
在回答引出的問句時，如果是否定的，不能用mustn’t（禁止，不準），而用needn’t, don’t have to（不必）。
例如： -- ust we hand in our exercise books today? --- Yes, you must. --- No, you don’t have to / you needn’t.
2) must是說話人的主觀看法，而have to則強調客觀需要。ust只有一般現在時，have to 有更多的時態形式。
例如：His play isn’t interesting, I really must go no I had to work when I was your age.
3) 表示推測、可能性（只用于肯定的陳述句）例如： You’re Tom’s good friend, so you must knohat he likes best.
Your mother must be waiting for you no4. dare, need
1) dare作情態動詞用時, 常用于疑問句、否定句和條從句中, 過去式形式為dared。例如： How dare you say I’m unfair?
2) need 作情態動詞用時, 常用于疑問句、否定句。在肯定句中一般用must, have to, ought to, should代替。
例如：You needn’t come so early. ---- Need I finish the work today? --- Yes, you must. / No, you needn’t.
3) dare和 need作實義動詞用時， 有人稱、時態和數的變化。在肯定句中，dare后面常接帶to的不定式。在疑問句和否定句中，dare后面可接帶to或不帶to的不定式。而need后面只能接帶to的不定式。
例如：I dare to swim across this river. He doesn’t dare (to) answer.
5. shall, should
1) shall 用于第一人稱，征求對方的意見。 例如：What shall we do this evening? 2) shall 用于第二、三人稱，表示說話人給對方的命令、警告、允諾或威脅。 You shall fail if you don’t work hard. (警告) He shall have the book when I finish it.(允諾) He shall be punished.(威脅 )教學
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教學內容
措施矯正
交
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任
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討
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6. will, would
1) 表示請求、建議等，would更委婉。
例如： Will / Would you pa ss me the ball, please?
2) 表示意志、愿望和決心。例如： I will never do that again. They asked him if he would go abroad.
3) would表示過去反復發生的動作或某種傾向。would表示過去習慣時比used to正式，且沒有“現已無此習慣”的含義。
例如： During the vacation, he would visit me every other day. The wound would not heal.
7. sho uld, ought to
1) should, ought to表示“應該”，ought to表示義務或責任，比s hould語氣重。
I should help her because she is in trouble. You ought to take care of the baby.
2) 表示勸告、建議和命令。should, ought to可通用，但在疑問句中常用should。
You should / ought to go to class right away.
Should I open the window?
3) 表示推測
should , ought to (客觀推測), must(主觀推測)。
He must be home by no (斷定他已到家)
He ought to/should be hom e by no(不太肯定)
This is where the oil must be. (直爽)
This is where the oil ought to/should be. (含蓄)
一，選用can, could, may, must, shall, should, will, would, can’t, mustn’t, needn’t或have to
1. There is air around us, thought we ________ see it.
2. Your mother is getting better and better. You _______ worry about her.
3. You _______ play football in the busy street.
4. “_______ it be true ?.” “Yes. It _______ be true indeed.”
5. Tom _______ come to the party tonight, but I’m not sure.
6. _______ you please fetch me some water for me?
7. Young trees ________ be planted in spring.
8. “ust we hand in our exercise books today?”
“Yes, you ______.” “No, you ________.”
9. “ay I take this magazine out of the reading-room?”
“Yes, you _______.” “No, you _______.”
10. Please speak a little louder so that I _______ hear you.
二1. If you are not careful in the street, a car ______ hit you.
A. can B. may C. would D. must
2. ?ay I watch TV now, mum?
-No, you _____. You _____ do your homework first.
A. don’t; must B. don’t; can’t C. can’t; must D. can’t; can
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教學內容
措施矯正
反
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3. ?r. John, we must hand in our work today, ______?-No, you ______. But you must bring it to school tomorro
A. needn’t we; mustn’t B. mustn’t we; needn’t
C. mustn’t you; mustn’t D. needn’t we; needn’t
4. He isn’t in the school. I think he ______ be ill. A. can B. shall C. must
5. Children ______ play on the road or in the street. It is dangerous.
A. may not B. mustn’t C. couldn’t D. needn’t
6. Even the top students in our class can’t work out this problem, so it _____be very difficult. A. may B. must C. can D. need
7. ?Can you ride a bike? -No, I _____.
A. may not B. can’t C. needn’t D. mustn’t
8. ?ust I return the book this morning?
-No, you _____. But you ______ return it before supper.
A. needn’t; must B. mustn’t; can C. mustn’t; may D. can’t; need
9. You ____ to go and see the doctor right no
A. must B. should C. have D. will
10. Don’t play with the knife. You ______ hurt yourself.
A. may B. should C. have to D. need
三，1. What _____ I do for you, madam?
A. may B. must C. can D. will
2. You’re made the same mistake again. How _____ you be so careless!
A. shall B. may C. can D. must
3. Peter _____ come with us this afternoon, but he isn’t very sure yet.
A. shall B. may C. can D. must
4. Don’t worry! The news _____ be true.
A. may not B. mustn’t C. will not D. needn’t
5. The traffic _____ stop when the lights are red in the street.
A. can’t B. don’t have to C. mustn’t D. must
6. ?Look! It _____ be the new headmaster.
-It _____ be him. He went to Beijing yesterday.
A. can; mustn’t B. can; can’t C. must; can’t D. must; may
7. ______ I close the window? It’s so cold here.
A. ust B. Will C. Need D. Shall
8.You ___ return the bike no You can keep it till tomorrow if you like.
A. can’t B. mustn’t C. needn’t D. may not
9.You _____ yourself about money. A. needn’t worry B. needn’t to worry C. don’t need worry D. needn’t be worry
10.any people want to see you. _____ they wait here or outside?
A. Do B. Will C. Need D. Shall
11.____ I ask your name, please? A. Will B. Shall C. ay D. ust
12.You _____ do it even if you don’t want to.
A. can’t B. mustn’t C. have to D. needn’t
13.I _____ like someone to take me to the museum.
A. will B. would C. shall D. need
14.Look, what you have done! You _____ more careful.
A. may be B. had to C. should be D. should
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