1. We didn't hurry, so we were late for the concert.

=> If we had hurried, we wouldn't have been late for the concert.

2. In order to get a driver's license, you must be at least 18 years old.

=> If you want to get a driving license, you must be at lest 18 ys old.

3. A person must have a passport to be able to travel abroad.

=> A person cannot travel abroad unless he/she has a passport.

4. Tom dosen't do anything if you don't tell him what to do.

=> Unless you tell Tom what to do, he doesn't do any thing.

5. We must take steps to preserve natural resources, or the planet will be in danger.

=> Unless we take steps to preserve natural resources, the planet will be in danger.

6. He doesn't get a job, so he can't pay his bills

- If He got a job, he could pay his bills

7. She isn't fit because she sits around too much

- If she didn't sit around too much, She would be fit

8. The fire brigade came immediately, so the house didn't burn down

- If The fire brigade hadn't come immediately, the house would have burned down

Rewrite:

1. We didn't hurry, so we were late for the concert

- If we had hurried, we wouldn't have been late for the concert.

2. In order to get a driver's license, you must be at least 18 years old

- If you want to get a driver's license, you must be at least 18 years old.

3. A person must have a passport to be able to travel abroad

- A person cannot travel abroad unless he/she has a passport.

4. Tom doesn't do anything if you don't tell him what to do

- Unless you tell Tom what to do, he won't do anything.

5. We must take steps to preserve natural resources or the planet will be in danger

- Unless we take steps to preserve natural resources; the planet will be in danger.

6. He doesn't get a job, so he can't pay his bills

- If he got a job, he could pay his bills.

7. She isn't fit because she sits around too much

- If she didn't sit around too much, she would be fit.

8. The fire brigade came immediately, so the house didn't burn down

- If the fire brigade hadn't come immediately, the house would have burned down.

Rewrite:

1. We didn't hurry, so we were late for the concert

- If .....we had hurried, we wouldn't have been late for the concert ......

2. In order to get a driver's license, you must be at least 18 years old

- If you........get a driver's license, you must be at least 18 years old .......

3. A person must have a passport to be able to travel abroad

- A person cannot travel abroad unless........he/she has a passport ........

4. Tom doesn't do anything if you don't tell him what to do

- Unless.........you tell him what to do, Tom doesn't do anything .......

5. We must take steps to preserve natural resources or the planet will be in danger

- Unless.........we take steps to preserve natural resources, the planet will be in danger ......

6. He doesn't get a job, so he can't pay his bills

- If........he got a job, he could pay his bills .........

7. She isn't fit because she sits around too much

- If...she didn't sit around too much, she would be fit ......

8. The fire brigade came immediately, so the house didn't burn down

- If.......the fire brigade hadn't come immediately, the house would have burned down .......

Rewrite these sentences as directed:

1. He doesn't eat fish when he isn't extremely hungry.

=> If he isn't extremely hungry, he doesn't eat fish. ( Điều kiện loại 0 , nêu lên 1 sự thật chắc chắn xảy ra)

2. We didn't hurry, so we were late for the concert.

=> If we had hurried, we wouldn't have been late for the concert.

3. In order to get a driver's license, you must be at least 18 years old.

=> If you want to get a driving license, you must be at lest 18 ys old.

4. A person must have a passport to be able to travel abroad.

=> A person cannot travel abroad unless he/she has a passport.

5. Ann's having a lot of trouble because she lost her passport last week.

=> If Ann hadn't lost her passport lastweek, she wouldn't be having a lot of trouble

6. Tom dosen't do anything if you don't tell him what to do.

=> Unless you tell Tom what to do, he doesn't do any thing.

7. We must take steps to preserve natural resources, or the planet will be in danger.

=> Unless we take steps to preserve natural resources, the planet will be in danger.

8. It's such a pity your sister can't come as well

=> If only your sister could come as well.

9. The soil would become poor unless the farmer added fertilizers.

=> If the farmer hadn't added fertilizers, the soil would have become poor.

10. You probably won't have time, but I'd like you to come and see.

=> If you have time, I'd like you to come and see.

D. Rewrite these sentences as directed:

1. He doesn’t eat fish when he isn’t extremely hungry.

à If he isn't extremely hungry, he doesn't eat fish.

2. We didn’t hurry, so we were late for the concert.

à If we had hurried, we wouldn't have been late for the concert.

3. In order to get a driver’s license, you must be at least 18 years old.

à If you want to get a driver's license, you must be at least 18 years old.

4. A person must have a passport to be able to travel abroad.

à A person cannot travel abroad unless he has a passport.

5. Ann’s having a lot of trouble because she lost her passport last week.

à If Ann hadn't lost her passport last week, she wouldn't be having a lot of trouble.

6. Tom doesn’t do anything if you don’t tell him what to do.

à Unless you tell Tom what to do, he doesn't do anything.

7. We must take steps to preserve natural resources, or the planet will be in danger.

à Unless we take steps to preserve natural resources, the planet will be in danger.

8. It’s such a pity your sister can’t come as well.

à If only your sister could come as well.

9. The soil would become poor unless the farmer added fertilizers.

à If the farmer added fertilizers, the soil wouldn't become poor.

10. You probably won’t have time, but I’d like you to come and see.

à If you have time, I'd like you to come and see.

11. There were such a lot of traffic; that’s why we are late.

à Hadn't there been such a lot of traffic, we wouldn't have been late.

12. I couldn’t have managed it without your help.

à If you hadn't helped me, I couldn't have managed it.

13. It was her determination which enable her to get better so quickly.

à If she hadn't been determined, she wouldn't have got better so quickly.

14. He doesn’t get a job, so he can’t pay his bills.

à If he got a job, he could pay his bills.

15. She isn’t fit because she sits around too much.

à If she didn't sit around too much, she would be fit.

16. The fire brigade came immediately, so the house didn’t burn down.

à If the fire brigade hadn't come immediately, the house would have burned down.

17. Sue walked to work in the rain and caught a cold.

àIf Sue hadn't walked to work in the rain, she wouldn't have caught a cold.

18. I was sick yesterday, so I didn’t go to class.

à If I hadn't been sick yesterday, I would have gone to class.

19. Because Alan never eats breakfast, he always overeats at lunch.

à If Alan ate breakfast, he wouldn't always overeat at lunch.

20.The teacher is very angry now. His pupils did their homework carelessly

-> If the teacher's pupils hadn't done their homework carelessly, he wouldn't be very angry now.

D. Rewrite these sentences as directed:

1. He doesn’t eat fish when he isn’t extremely hungry.

à If he isn't extremely hungry, he doesn't eat fish.

2. We didn’t hurry, so we were late for the concert.

à If we had hurried, we wouldn't have been late for the concert.

3. In order to get a driver’s license, you must be at least 18 years old.

à If you want to get a driver's license, you must be at least 18 years old.

4. A person must have a passport to be able to travel abroad.

à A person cannot travel abroad unless he has a passport.

5. Ann’s having a lot of trouble because she lost her passport last week.

à If Ann hadn't lost her passport last week, she wouldn't be having a lot of trouble.

6. Tom doesn’t do anything if you don’t tell him what to do.

à Unless you tell Tom what to do, he doesn't do anything.

7. We must take steps to preserve natural resources, or the planet will be in danger.

à Unless we take steps to preserve natural resources, the planet will be in danger.

8. It’s such a pity your sister can’t come as well.

à If only your sister could come as well.

9. The soil would become poor unless the farmer added fertilizers.

à If the farmer added fertilizers, the soil wouldn't become poor.

10. You probably won’t have time, but I’d like you to come and see.

à If you have time, I'd like you to come and see.

B

b

1. we have to start walking ___________ we don't be late

a: so that b: so as to c. because d. although

2. the school boys are in hurry ___________ they will not be late for school

a: so as to b: to c: in order that d: for

3. we set off early ____________ we wouldn't get stuck in the traffic

a. although b. so that c. because d. in case

4. my mother went to london ____________ see my aunt's family

a in order to b. so that c. not to D. not

Câu 1, we don't be late không phải là một câu đúng về mặt ngữ pháp.

1/ We hurried to school so as not to be late.

=> We hurried to school so that we wouldn't be late.

2/ He climbed the tree in order to get a better view.

=> He climbed the tree in order that he could get a better view.

3/ Some young people like to earn their own living in order to be independent of their parents

=> Some young people like to earn their own living so that they could be independent of their parents.

4/ We should take advantage of the scientific achievements of the world so as to develop our national economy.

=> We should take advantage of the scientific achievements of the world so that we could develop our national economy.

5/ Every people in the world must unite their efforts to maintain and protect peace.

=> Every people in the world must unite their efforts in order that they could maintain and protect peace.

Ex 2 : Đổi những câu sau sang mệnh đề, dùng "so that / in order that"

1. We hurried to school so as not be late

 we hurried to school so that we wouldn't be late

2. He climbed the tree in order to get a better view

he climbed the tree in order that he could get a better view

3. Some young people like to earn their own living in order to be independent of their parents

somw young people like to earn their own living so that to be independent of their parents

4. We should take advantage of the scientific achivements of the world to develop our national economy

we sould take adventage of the scientific achivements of the world so that we could develop our national aconomy

5, Every people in the world must unite their efforts to maintain and protect peace

evey people in the world must unite their efforts in order that they could maintain and protect peace

1. We don’t have enough money, so we can’t buy that house.

A. If we had enough money, we could buy that house. B. We could buy that house if we have enough money.

C. If we had had enough money, we could buy that house. D. We could have bought that house if we had had enough money.

2.Water these plant or they will die

A.Unless you water these plants ,they will die B.Unless you watered these plants ,they will die

C. Unless you water these plants ,they won’t die D. If you water these plants ,they will die

3. Hurry up or we’ll be late for the correct

A. If we don’t hurry , we won’t be late for the concert B.If we didn’t hurry , we will be late for the concert

C. If we don’t hurry, we will be late for the concert D.Unless we don’t hurry, we will be late for the concert

4..I can’t do this test because it is very difficult

A.If this test were difficult,I could do it B. If this test weren’t difficult ,I could do it

C.If this test weren’t difficult,I couldn’t do it D.Unless this test were difficult, I couldn’t do it

5. Study harder or you won’t pass the exam.

A. Only if you study harder, you will fail the exam. B. Unless you study harder, you will pass the exam.

C. If you don’t study harder, you will fail the exam.D. If you don’t pass the exam, you will have to study harder.

6. Take action soon or the pollution will get much worse.

A. If you don’t take action soon, the pollution will get much worse.

B. Unless you don’t take action soon, the pollution will get much worse.

C. The pollution will get much worse if you didn’t take action soon.

D. Only if you take action soon, the pollution will get much worse.

7. The fire will go out if we don’t put more wood on.

A. If we don’t put more wood on, the fire won’t go out. B. Unless we put more wood on, the fire will go out.

C. The fire will go out, so we don’t put more wood on. D. Unless we put more wood on, the fire won’t go out.

8. They spent a lot of money on food and clothes.

A. A lot of money was spent on food and clothes. B. A lot of money were spent on food and clothes.

C. A lot of money on food and clothes were spent. D. A lot of money on food and clothes was spent.

9. People have used the Internet all over the world.

A. The Internet has used all over the world. B. The Internet was used all over the world.

C. The Internet has been used all over the world. D. The Internet has been using all over the world.

10. Our house is going to be rebuilt by a local firm.

A. We are going to rebuild our house. B. We are going to have our house to rebuild.

C. A local firm are going to rebuild our house. D. A local firm is going to rebuild our house.

1. We don’t have enough money, so we can’t buy that house.

A. If we had enough money, we could buy that house. B. We could buy that house if we have enough money.

C. If we had had enough money, we could buy that house. D. We could have bought that house if we had had enough money.

2.Water these plant or they will die

A.Unless you water these plants ,they will die B.Unless you watered these plants ,they will die

C. Unless you water these plants ,they won’t die D. If you water these plants ,they will die

3. Hurry up or we’ll be late for the correct

A. If we don’t hurry , we won’t be late for the concert B.If we didn’t hurry , we will be late for the concert

C. If we don’t hurry, we will be late for the concert D.Unless we don’t hurry, we will be late for the concert

4..I can’t do this test because it is very difficult

A.If this test were difficult,I could do it B. If this test weren’t difficult ,I could do it

C.If this test weren’t difficult,I couldn’t do it D.Unless this test were difficult, I couldn’t do it

5. Study harder or you won’t pass the exam.

A. Only if you study harder, you will fail the exam. B. Unless you study harder, you will pass the exam.

C. If you don’t study harder, you will fail the exam.D. If you don’t pass the exam, you will have to study harder.

6. Take action soon or the pollution will get much worse.

A. If you don’t take action soon, the pollution will get much worse.

B. Unless you don’t take action soon, the pollution will get much worse.

C. The pollution will get much worse if you didn’t take action soon.

D. Only if you take action soon, the pollution will get much worse.

7. The fire will go out if we don’t put more wood on.

A. If we don’t put more wood on, the fire won’t go out. B. Unless we put more wood on, the fire will go out.

C. The fire will go out, so we don’t put more wood on. D. Unless we put more wood on, the fire won’t go out.

8. They spent a lot of money on food and clothes.

A. A lot of money was spent on food and clothes. B. A lot of money were spent on food and clothes.

C. A lot of money on food and clothes were spent. D. A lot of money on food and clothes was spent.

9. People have used the Internet all over the world.

A. The Internet has used all over the world. B. The Internet was used all over the world.

C. The Internet has been used all over the world. D. The Internet has been using all over the world.

10. Our house is going to be rebuilt by a local firm.

A. We are going to rebuild our house. B. We are going to have our house to rebuild.

C. A local firm are going to rebuild our house. D. A local firm is going to rebuild our house.