Giáo án Tiếng Anh 12 - Unit 10

Unit 10: MODALS
 English 12
Revision : May, might, must, mustn’t, needn’t 
E.g:
* May: 
1: present/ future probability : He may not be at home now.
2: Permission: May I come in?
* Might:
1: probability: We might not come to the party tonight
2: Permission: Might I ask you a favor?
* must: Express necessity
1: Obligation: I must go home now. I’ve got to be at work early tomorrow.
2: logical necessity: An’s mother is ill again. She must be very worried.
* mustn’t: is used for obligation and it means “ obliged not to” “ or “ not allowed”
You mustn’t smoke in here, or we will be sent out.
* needn’t: It is not necessary to do sth
( needn’t / don’t need to / haven’t got to do )
You needn’t pay me back the money you owe me until next week
Modal Perfect MODAL+ HAVE + P.P 
Could have + P.P: raát coù theå ñaõ (dieãn taû1 khaû naêng ñaõ coù trong qk,nhöng chöa ñöôïc söû duïng tôùi).
Couldn’t have + P.P: Taát nhieân ñaõ khoâng theå (dieãn taû1 haønh ñoäng hieån nhieân khoâng theå laøm ñöôïc)
Should have + P.P: Ñaùng leõ phaûi (dieãn taû 1 lôøi khieån traùch ñoái vôùi 1 haønh ñoäng quaù khöù ñaùng leõ neân laøm maø laïi khoâng laøm)
Shouldn’t have + P.P: Leõ ra khoâng neân (dieãn taû 1 lôøi khieån traùch ñoái vôùi 1 haønh ñoäng quaù khöù ñaùng leõ khoâng neân laøm maø laïi laøm).
Must have + P.P: AÉt haún ñaõ (dieãn taû 1 söï suy ñoaùn gaàn ñuùng veà 1 söï kieän ôû quaù khöù: 
May/ might (not) have P.P: Coù theå, coù leõ (dieãn taû nhöõng gì coù theå (hoaëc khoâng) xaûy ra ôû qk)
Needn’t have P.P: Khoâng caàn thieát( Dieãn taû moät söï vieäc khoâng caàn thieát phaûi bieát roõ söï vieäc or tg) 
Would have + P.P: Coù leõ ñaõ (duøng trong caâu ñieàu kieän loaïi 3)
II. Practice: 
1. You have been reading for four hours. This book ___ be very interesting.
	A. can	B. might	C. must	D. should	
2. Don’t phone Ann now. She ___ be having lunch.
	A. might	B. can	C. must	D. has to
3. This road is very narrow. It ___to be widened.
 	A. might	B. needs	C. mustn’t 	D. may
4. They have plenty of time, so they needn’t ___.
	A. be hurry	B. to hurry	C. hurry	D. to be hurried
5. You’re having a sore throat. You’d better___ to the doctor.
	A. to go	B. went	C. go	D. going
6. My mother permitted me to go out at night. She said, “You ___ go out tonight.”
	A. may	B. have to	C. must	D. ought to 	 
7. He advised me to take an English course. I ___ it early.
	A. should have taken	B. should take	C. will have taken	D. may take
8. You ___ ring the bell; I have a key.
	A. mustn’t 	B. needn’t 	C. couldn’t 	D. shouldn’t
9. It must ___ without delay.
	A. be done	B. have been done	C. do	D. be doing
10. By the time a baby has reached his first birthday, he should ___ sit up or even stand up.
	A. to be able to	B. able to	C. to be able	D. be able to 
11. Many birds will ___ more than 3,000 miles to reach their winter homes.
	A. flying	B. fly	C. be fly	D. flew
12. The pen won’t write; It ___ out of ink.
	A. must run	B. must be running	C. must have run	D. must have ran
13. The line is busy; someone ___ the telephone now.
	A. must be using	B. must have used	C. must use D. must have been using
14. She told me that she’d rather ___ on the committee. 	
	A. not to serve	B. not serving	C. not serve	D. serving not
15. “Are you still going to Florida for vacation?” “Yes, but I really ___because I don’t have much money.”
	A. shouldn’t 	B. can’t	C. mustn’t 	D. won’t
16. “Did Peter go downtown by car or by train?” “He ___by train because his car was in the mechanics.”
	A. must go	B. has to go	C. had gone	D. must have gone
17. “Why are you so mad?” “You ___ me you weren’t coming to dinner. I waited for you for two hours.”
	A. should tell	B. should have told	C. should told	D. should had told
18. “Do you like to play tennis?” “I ___, but now I prefer golf”
	A. used to	B. used to do	C. used to played	D. used to playing
19. “Have you seen Kate?” “No, but she ___ be at her desk.”
	A. may	B. ought	C. would	D. can
20. “Can I borrow twenty dollars?” “No, you know I ___ lend you money any more.”
	A. might not	B. shouldn’t have	C. won’t 	D. not going to
MODALS- Con’t
I ______ be delighted to show you round the factory.
a. ought to 	b. would 	c. might	d. can
Leave early so that you ______ miss the bus.
a. didn’t 	b. won’t c. shouldn’t	d. mustn’t
Jenny's engagement ring is enormous! It ______ have cost a fortune
a. must 	b. can 	c. will	d. should
You ______ to write them today.
a. should 	b. must 	c. had	d. ought
______ you be in Rome tonight? 
a. will 	b. may 	 c. might	 d. maybe
Jeanette did very badly in the exam. She _____ harder.
a. must have studied	b. should have studied c. could have studied	d. must studied
 He was very lucky when he fell off the ladder. He _____ himself.
a. could have hurt b. should have hurt c. must have hurt	d. will have hurt
 Marcela didn’t come to class yesterday. She _____ an accident.
a. should have had b. might have c. must have	d. may have had
 John still hasn’t come out. He ______ everything for the trip now.
a. must have been preparing 	c. must be preparing
b. will be preparing 	d. will have prepared
 Thomas received a warning for speeding. He _____ so fast.
a. shouldn’t have driven b. would have driven c. should have	d. must drive
 The photos are black. The X-ray at the airport _____ them.
a. should have damaged b. would have damaged c. would damage d. must have damaged
 Tom didn’t do his homework, so the teacher became very angry. He _____ his homework.
a. must have done 	b. should have done	 c. might have 	d. will have done
 My car stopped on the high way. It _____ out of gas
a. may run 	b. may have run 	c. must be	d. should have run
Robert arrived without his book. He _____ it.
a. could have lost b. should have lost 	c. would have lost	d. will have lost
Berbatov painted his bedroom black. It looks dark and dreary. He _____ a different color.
a. had to choose 	b. should have chosen 	c. must have chosen	d. could have been choosing
The children _____ “thank you” to you when you gave them their gifts.
a. will have said b. must say 	c. should have said	d. should say
These two boys look identical. They _____ twins.
a. must have been b. must be 	 c. should be	d. should have been
I’ll write today so that he ____ know when to expect us 
 	a. must	b. need	 	 c. may	d. should
Twenty years ago, David _________ speak Arabic fluently. Now he’s forgotten a lot. a. could 	b. might 	c. needed 	d. must 
Something ………… to stop these accidents
 	a. must do 	b. can be done 	 c. must be done	d. must have been done
This box isn’t as heavy as it looks. You ______ help me with it. Thanks anyway for offering to help. a. must 	b. mustn’t 	 c. might 	d . needn’t 
 You ________ play loud music at night. The neighbors will call the police.  a. mustn’t 	b. needn’t 	 c. might not 	d. couldn’t 
 You __________ stand up. There are a lot of seats available on the bus.  a. couldn’t b. mustn’t c. needn’t d. might not
This library book is overdue. I _________ better return it today. a. need b. must 	c. might d. had 
Our company provides free advice on the use of our products. You _________ pay us. a. must 	b. have to 	c. needn’t d. mustn’t 
 We ………open the lion’s cage. It is contrary to zoo regulations. a. must 	b. mustn’t 	 c. needn’t 	d. should 
 I …….arrive on time, so please start dinner without me. a. could 	b. may 	c. may not 	d. should 
 "Are these gloves necessary?" "Yes. You….use this chemical without gloves. It will burn your skin" a. must not 	b. don’t have to c. could not d. need not 
All the questions …………….. right now. I need time to think over
 a. should have been answered b. can be answered c. mustn’t be answered d. can’t be answered
 The windows ............ cleaning . You haven’t dusted them since last month.
 	a. need 	b. must be 	 c. had better 	d. should be
Carl ………..studied harder; he failed the test again. a. must have 	b. should have 	c. could have 	d. needn’t have 
 "Would you like to go with me to the Williams’ wedding next month?" "I’m not sure. I……. be too busy with school work." a. will 	b. might 	 c. maybe 	d. should 
Jane often wears beautiful new clothes. She _______ be very rich.
a. must 	b. could 	 c. might 	d. needn’t
We……. take a taxi. Otherwise we’ll be late. a. would rather b. had better 	 c. must have d. will have
The trip_________ postponed because the children were all excited about it 
a. could have 	b. should not have been c. must have 	d. had better be
They prayed that their daughter……… be lucky again 
a. may	b. could 	 c. might 	d. could
He ……………all that money so she could save some 
a. didn’t need to spend b. needn’t have spent	 c. shouldn’t spend	d. shouldn’t have spent
They have plenty of time, so they need not …….
a. be hurry 	b. hurry 	 c. to hurry 	d. to be hurry
I ………. poor but happy than rich without happiness	
a. may 	b. had better 	 c. would rather d. will be
Tom has just got a job. He ………. be very pleased
	a. must	b. might	 c. should	d. will