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1: we didn't visit the museum because we didn't have time.
---> If we had had time, we would have visited the museum.
2: she got tired because she worked so hard.
---> If she hadn't worked so hard, she wouldn't have gotten tired.
3: he didn't pass the exam because he didn't work hard
---> If he had worked hard, he would have passed the exam.
4: they didn't attend the lectuer, so they were punished
----> If they had attended the lecture, they wouldn't have been punished.
5: I didn't have an unbrella with me so I got wet.
----> I wouldn't have gotten wet if I had had an umbrella.
6: you drink too much coffee , that's why you can't sleep
-----> If you didn't drink too much coffee, you could sleep.
7:dick is in prison because a detective recognized him.
----> If a detective hadn't recognized Dick, he wouldn't be in prison.
8: I don't have any money , so I can't lend you any .
---> If I had some money, I could lend you some.
9: I didn't have the money , so I didn't buy a new suit.
----> If I had had the money, I would have bought a new suit.
10: she doesn't live in london because she doesn't know anyone there.
----> If she knew someone in London, she would live there.
11: I can't live in the country because I don't find a job there .
---->If I found a job in the country, I could live here
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EX3.
1. You could make better progress if you...attended (attend) class regularly
2. If I .knew... (know) his telephone number, I'd give it to you
3. If he worked more slowly, he..wouldn't make. (not make) so many mistakes
4. I shouldn't drink that wine if I.were.. (be) you
5. If someone (give)..gave.. you a boat, what would you (do)...do.?
6. If you are kind to me, I (be).will be.. good to you
7. He (come).would come... if you waited
8. If you (ring) rang..the bell, the servant would come
9. It is (not, rain)... a lot, the rice crop wouldn't grow -> sai đề rồi
10. If today (be) were..Sunday, we wouldn't have to work
EX4:
1. Keep silent or you'll wake the baby up
-> If...you don't keep silent,you'll wake the baby up...........
2. Stop talking or you won't understand the lesson
-> If....you don't stop talking,you won't understand the lesson.......
3. I don't know her number, so I don't ring her up
-> If..I knew her number,I would ring her up...................
4. I don't know the answer, so I can't tell you
->...If I knew the answer,I could tell you......................
5. We get lost because we don't have a map
-> If....we had a map,we wouldn't get lost...............
6. Susan felt sick because she ate four cream cakes
->If...Susan hadn't eaten four cream cakes,she wouldn't have felt sick...........
7. If anyone didn't come, we would phone you at once
-> Unless...anyone came,we would phone you at once..............
8. If we had enough rain, we couldn't grow rice
-> Unless...we had enough rain,we couldn't grow rice.................
(nhưng câu 8 cũng sai đề rồi :))) phải là if we didn't have enough rain,we couldn't grow rice thì đáp án mới như trên)
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1. If i knew his number , i would call him
2. If he invited me to his birthday party,i could come there
3.If the motor were expensive , t could affort it
4.If i didn't have to work tomorrow evening,i could meet you
5 If you didn't lived so far away, i could visit you very often
6. If he understood the lesson ,he could do the exercise
7.If she didn't study hard ,her parents would be proud of her
9.If he spoke very clearly ,people could understand him.
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Rewrite the following sentences
1. He smokes too much; that's why he can't get rid of his cough.
->Were he not to smoke too much, he could get rid of his cough.
2.He doesn't take any exercises. He is so unhealthy
->Were he to take some exercise, we would be so healthy.
3.We can't get the ticket because I don't have the right change.
->Were I to have the right change, we could get the ticket.
4.Study hard or you won't pass the exam.
-> Should you study hard, you will pass the exam.
5.Don't be impatient or you will make mistakes.
->Should you be impatient, you will make mistakes.
6.I didn't eat lunch, I feel hungry now.
->Had I eaten lunch, I wouldn't feel hungry now.
7.I only come if they invite me.
->Unless they invite me, I won't come.
8.He didn't revise all his lesson, he failed the exam.
->Had he revised all his lesson, he wouldn't have failed the exam.
9. The park is over there, only 5 minutes walk.
->If you walk to the park, it will take you 5 minutes.
10.Leave me alone or I'll call the police.
->Unless you leave me alone, I'll call the police.
11.The car breaks down so often because you don't take good care of it.
->Were you to take good care of the car, it wouldn't break down so often.
12.He is very bad-tempered, that's why his wife left him soon after marriage.
->If he were not very bad-tempered, his wife wouldn't have left him soon after marriage.
13.Don't tell lies to your boss or you'll be fired at once.
->Should you tell lies to your boss, you'll be fired at once.
14.She got married at such an early age: otherwise, she would be at unisersity now.
-> Had she not got married at such an early age, she would have been at unisersity now.
1. He smokes too much; that's why he can't get rid of his cough.
-> Were he not to smoke too much, he couldn't get rid of his cough.
2.He doesn't take any execises. He is so unhealthy
-> Were he to take any execises, he wouldn't be so unhealthy.
3.We can't get the ticket because I don't have the right change.
-> Were I to have the right change, we couldn't get the ticket.
4.Study hard or you won't pass the exam.
-> Should you hard study, you will pass the exam.
5.Don't be impatient or you will make mistakes.
-> Should you be impatient, you won't make mistakes.
6.I didn't eat lunch, I feel hungry now.
-> Had I eaten lunch, I wouldn't feel hungry now.
7.I only come if they invite me.
-> Unless they invite me, I won't come.
8.He didn't revise all his lesson, he failed the exam.
-> Had he revised all his lesson, he woulfn't have failed the exam.
9. The park is over there, only 5 minutes walk.
-> If you walk to the park, it will take you only 5 minutes.
10.Leave me alone or I'll call the police.
-> Unless you leave me alone, I'll call the police.
11.The car breaks down so often because you don't take good care of it.
-> Were you to take good care of the car, it wouldn't break down so often.
12.He is very bad-tempered, that's why his wife left him soon after marriage.
-> If he wasn't very bad-tempered, his wife wouldn't have left him soon after marriage.
13.Don't tell lies to your boss or you'll be fired at once.
-> Should you tell lies to your boss, you'll be fired at once.
14.She got married at such an early age: otherwise, she would be at unisersity now.
-> Had she not got married at such an early age, she would be at unisersity now.
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Exercise: Kết hợp câu dùng câu điều kiện.
11. If you do not like this one, I'll bring you another.
--> Unless you like this one, I'll bring you another.
12. Martin failed his driving test last week because he was very nervous.
--> If Martin hadn't been very nervous, he wouldn't have failed his driving test last week.
13. He paid me last night. I had enough money to buy a car.
--> If he hadn't paid me last night, I wouldn't have had enough money to buy a car.
14. I stayed up late last night that's why I can't get up early today.
--> If I hadn't stayed up late last night, I could get up early today.
15. If you can't arrive at the office earlier, please turn on the airconditioner.
--> Unless you can arrive at the office earlier, please turn on the airconditioner.
16. He got troubles, so he couldn't go to the airport on time.
--> If he hadn't got troubles, he could have gone to the airport on time.
17. The car breaks down so often because you don't take good care of it.
--> If you took good care of the car, it wouldn't broke down so often.
18. He tells lies to his boss that's why he is fired at once.
--> If he didn't tell lies to his boss, he wouldn't be fired at once.
19. He didn't revise all his lessons, so he failed the exam.
--> If he had revised all his lessons, he wouldn't have failed the exam.
20. Rita is exhausted today because she didn't sleep last night.
--> If Rita had slept last night, she wouldn't be exhausted today.
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- You are tired today because you didn't go to bed when I told you
-> You wouldn't be tired today if you had gone to bed when I told you
- Tom refused to work overtime. That's why he didn't get promotion
-> If it hadn't been for his refusal to work overtime, Tom would have got promotion
- You are tioured today because you didn't go to bed when I told you
-> You wouldn't be tired today if you went to bed when I told you.
- Tom refused to work overtime. That's why he didn't get promotion
-> If it hadn't been for Tom's refusal to work overtime, hư would have got promotion.
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REWRITE THE FOLLOWING SENTENCES USING IF-> UNLESS
TYPE1
1. If he doesn't hurry, he will be late for school
-> unless he hurry, he will be late for school
2. unless it stops raining, we won't go out
-> if it doesn't stop raining, we won't go out
3. you will get success if you are patient
- unless you aren't patient,you will get success
4. those flowers will die if nobody waters them
- unless nobody doesn't water them,those flowers will die
5. no one can help him if he doesn't tell the truth
- unless he tell the truth,no one can help him
6. you will catch a cold unless you keep your feet dry
- if you don't keep your feet dry,you won't catch a cold
7. if i don't catch the plane, i will not be home by five
- unless i catch the plane, i will not be home by five
8. if you don't apologize, i will never speak to you again
-unless you apologize, i will never speak to you again
9. unless he gives me his number, i won't phone him
- if he doesn't give me his number, i won't phone him
10. he cannot do that exercise if he doesn't learn his lessons carefully
-unless he learn his lessons carefully,he can do that exercise
TYPE 2
1. unless the studied harder, he would fail the final exam
- if the didn't study harder, he would fail the final exam
2. unless the drank alcohol, he would pass the contest
- if the didn't drink alcohol, he would pass the contest
3. unless he phoned immediately, he wouldn't meet Mary
-if he didn't phone immediately, he wouldn't meet Mary
4/ if we didn't have a calculator, we couldn't work his more quickly
-unless we didn't have a calculator, we couldn't work his more quickly
5. if i weren't weak, i could walk
- unless i were weak, i could walk
6. if you weren't slow now, you could uiwn the race
- unless you were slow now, you could uiwn the race
7. if you didn't speak very quickly, the students could hear you well
- unless you spoke very quickly, the students could hear you well
8. if tom didn't invite me, i wouldn't go to the party
- unless tom invited me, i wouldn't go to the party
9. if they didn;t know his number now, they wouldn't give it to me
- unless they knew his number now, they wouldn't give it to me
10. unless he were careful, he would have serious accident
- if he weren't careful, he would have serious accident
1. If you had been careful, you wouldn't have made many mistakes
2. If you had done as I told you, you would have succeeded
3. If I remembered his telephone number, I would call him
4. If today were not Sunday, we wouldn't stay at home