1.Peter is fat because he eats so many chips => 

If he didn't eat so many chips, he wouldn't be fat

2.If you are not careful,you will cut yourself with that knife =>

Unless you are careful,you will cut yourself with that knife.

3.If you do not like this one,I'll bring you another =>

Unless you like this one, I'll bring you another.

4.I'll not be able to do any work if I do not have a quiet room =>

.Unless I have a quite room,I'll not be able to do any work.

5.If she does not hurry,she will be late =>

Unless she hurries, she’ll be late.

6.She doesn't have a bike so she has to walk to school =>

If she had a bicycle, she wouldn't have to walk to school

7.I am not rich businessman and I can't afford to buy an expensive car =>

 If I were a rich businessman, I could afford to buy an expensive car

 8.My parents don't allow me to go,so I have to stay at home =>

 If my parents allowed me to go, I wouldn't have to stay at home

9.She doesn't pay attention to her cooking so the food is horrile =>

If she paid attention to her cooking, the food wouldn't be horrible

10.They do not know each other very well so they do not talk to each other =>

 If they knew each other very well , they would not be reserved 

11.He is not a millionaire,so he can't give you all that you want => 

 If he were a millionaire , he could give you all that you want 

12.She loves him so she forgives him easily =>

 If she didn't love him, she wouldn't forgive him easily.

13.We get up late in the morning so we do not have time to have breakfast =>

If we got up late this morning, he wouldn't have time to have breakfast

14.If she does not hurry,she will be late for school => 

.Unless she hurries,you'll be late.

15.We can't go out because he has to study for his exam => 

 If he didn't have to study for his exam, he could go out

16.She is lazy so she can't pass the exam =>

 If she weren't lazy, she could pass the exam.

17.He will pay me tonight,I will have enough money to buy a car =>

 If he pays me tonight, I will have enough money to buy a car

18.He smokes too much;that why he can't get rid of his cough =>

 If he didn’t smoke too much, he could get rid of his cough.

19.She is very shy,so she doesn't enjoy the party =>

 If she weren’t very shy, she would enjoy the party.

20.He doesn't take any exercises.He is so unhealthy =>

 If he took some exercises, He would be healthy.

21.Study hard or you won't pass the exam =>

If you don’t study hard, you won’t pass the exam.

22.Don't be impatient or you will make mistakes =>

 If you are impatient, you will make mistakes.

23.If you want my advice,I wouldn't buy it => 

 If I were you, I wouldn't buy it.

24.I only come if they invite me =>

 Unless they invite me, I will not come.

25.He didn't revise all his lessons,he failed the exam =>

 If he had revised all his lessons, he wouldn't have failed the exam.

26.Leave me alone or I'll call the police =>

Unless you leave me alone, I'll call the police

1. Peter is fat because he eats so many chips

If he didn't eat so many chips, he wouldn't be fat

2.If you are not careful,you will cut yourself with that knife 

Unless you are careful,you will cut yourself with that knife.

3.If you do not like this one,I'll bring you another 

Unless you like this one, I'll bring you another.

4.I'll not be able to do any work if I do not have a quiet room 

Unless I have a quite room,I'll not be able to do any work.

5.If she does not hurry,she will be late

Unless she hurries, she’ll be late.

6.She doesn't have a bike so she has to walk to school 

If she had a bicycle, she wouldn't have to walk to school

7.I am not rich businessman and I can't afford to buy an expensive car 

 If I were a rich businessman, I could afford to buy an expensive car

 8.My parents don't allow me to go,so I have to stay at home 

 If my parents allowed me to go, I wouldn't have to stay at home

9.She doesn't pay attention to her cooking so the food is horrile 

If she paid attention to her cooking, the food wouldn't be horrible

10.They do not know each other very well so they do not talk to each other 

 If they knew each other very well , they would not be reserved 

11.He is not a millionaire,so he can't give you all that you want 

 If he were a millionaire , he could give you all that you want 

12.She loves him so she forgives him easily 

 If she didn't love him, she wouldn't forgive him easily.

13.We get up late in the morning so we do not have time to have breakfast 

If we got up late this morning, he wouldn't have time to have breakfast

14.If she does not hurry,she will be late for school 

Unless she hurries,you'll be late.

15.We can't go out because he has to study for his exam 

 If he didn't have to study for his exam, he could go out

1 If I had enough money, I would buy it

2 If I wasn't busy, I could help you

3 If it doesn't rain, there will be a shortage of water

4  If she didn't eat many chíp, she wouldn't be fat

5 I won't only help you unless you promise to try harder

6 Unless it rains soon, the crop will be lost

7 If I weren't tired , I could concertrate properly

8, We don't have a garden, so we don't grow our own vegetables

--> If we had a garden, we would grow our own vegetables

9,He doesn't give you good advice because he isn't your true friend

--> If he were your true friend, he would give you good advice

10, We come late because the rain is so heavy

--> If The rain weren't so heavy, we wouldn't come late

11, You don't get better marks because you don't study harder

--> If you studied harder, you would get better marks

12, She is very busy so she can't go out tonight

--> If she weren't busy, she could go out tonight

13, I don't know anything about her background, so I can't tell you

--> If I knew anything about her background, I could tell you

14, I wasn't hungry so I didn't feel like eating

--> If I had been hungry, I would have felt like eating

15, She's so shy, that why she doesn't have many friends 

--> If she weren't so she, she would have many friends

16, I remembered Susan's birthday only because you reminded me about it

--> If you hadn't remind me about Susan's birthday, I wouldn't have remembered it

17, The car in front stopped so suddenly, so I crashed into its back

--> If the car hadn't stopped so suddenly, I wouldn't have crashed in to it's back

18, They painted the wall brown, that's why the house looked very dark

--> If they hadn't painted the wall brown, the house wouldn't have looked dark

19, My brother will have enough money. He will buy a bicycle

--> If my brother have enough money, He will buy a bycicle

20, I'll buy a new hat. I'll give it to you

--> If i buy a new hat, I will give it to you

21, You'll ask the teacher. He'll explain the lesson to you

--> If you ask the teacher, he will explain the lesson to you

22, I don't have enough money. I can't go on a long holiday this year

--> If I had enough money, I could go on a long holiday this year

23, I don't haave a typewriter. I can't type it myself

--> If I had a typewriter, I could type it myself

24, I don't live in a big city, so I can't go to the cinema very often

--> If I lived in a big city, I could go to the cinema very often

25, Lan doesn't have a bike, she walk to school

--> If Lan had a bike, she would walk to schook

26, He didn't hungry, so he missed the rain

--> If he had hurried, he wouldn't missed the train

27, We canceled our picnic because it rained very hard yesterday

--> If it hadn't rained very hard yesterday, we wouldn't have canceled our picnic

chúc e học tốt

1, I don't buy it because I don't have enough money

--> If I have enough money, I will buy it

2,I am busy now, so I can't help you

--> If I don't busy now, I will help you

3, There will be a shortage of water unless it rains

--> If  it doesn't rain, there will be a shortage of water

4, John is fat because she eat many chips

--> If she doesn't eat many chips, she won't fat

5, I'll only help you if you promise to try harder

--> Unless you promise try harder, I'll only help you

6, If it doesn't rain soon , the crops will be lost

--> Unless it rain soon, the crops will be lost

7, I am very tired so I can't concertrate properly

--> If I don't tired, I will concertrate properly

8, We don't have a garden, so we don't grow our own vegetables

--> If I have a garden, I will grow our own vegetables

9,He doesn't give you good advice because he isn't your true friend

--> If he give you good advice, he will your true friend

10, We come late because the rain is so heavy

--> If it doesn't rain so heavy, we won't come late

viết lại câu sao cho nghĩa không đổi

1. I do not buy it because I do not have enough money

--> If I had enough money , i would buy it

2. I am búy now, so I can not help you

--> If I weren't buying now , i could help you

3. There will be a shortage of water unless it rains

--> If it doesn't rain , there will be a shortage of water

4. John is fat because she eat many chips

--> If she didn't eat many chips , she wouldn't be fat

5. I will only help you if you promise to try harder

--> Unless you promise to try harder , i won't help you

6. If it does not rain soon, the srops will be lost

--> Unless it rains soon , the crops will be lost

7. I am very tired so I can not concentrate properly

--> If i weren't tired , i could concentrate properly

8.We do not have a garden , so we do not grow our own vegetables

--> If we had a garden , we would grow our own vegetables

9. He does not give you good advice because he is not your true friend

--> If he were your true friend , he would giv you good advice

10. We come late becavuse the rain is so havely

--> If the rain weren;t so heavy , we wouldn't come late

viết lại câu sao cho nghĩa không đổi

1. I do not buy it because I do not have enough money

--> If I had enough money, I would buy it.

2. I am búy now, so I can not help you

--> If I wasn't busy now, I could help you.

3. There will be a shortage of water unless it rains

--> If it didn't rain, there would be a shortage of water.

4. John is fat because she eat many chips

--> If she didn't eat many chips, she wouldn't be fat.

5. I will only help you if you promise to try harder

--> Unless you promise to try harder, I will not help you.

6. If it does not rain soon, the srops will be lost

--> Unless it rains soon, the srops will be lost.

7. I am very tired so I can not concentrate properly

--> If I wasn't very tired, I could concentrate properly.

8.We do not have a garden , so we do not grow our own vegetables

--> If we had a garden, we would grow our own vegetables.

9. He does not give you good advice because he is not your true friend

--> If he was your true friend, he would give you good advice.

10. We come late becavuse the rain is so havely

--> If the rain wasn't so heavy, we wouldn't come late.

1. The children can't go swimming because the sea is rough. 
=> If  the sea weren't rough, the children could go swimming
2. John is fat because he eats so many chips 
=> If John didn't eat so many chips, he wouldn't be fat
3. They are poor, so they can't help us
=> If they weren't poor, they could help us
4. Mary is shy, so she doesn't enjoy parties
=> If Mary weren't shy, she would enjoy parties
5. I haven't got a key. That's why I can't get in 
=> If I had got a key, I could get in
6. It's raining, so we can't have lunch in the garden
=> If it weren't raining, we could have lunch in the garden
6. I don't know anything about him, so I can't tell you 
=> If I knew something about him, I could tell you
7. She doesn't take any exercise, so she is overweight 
=> If  she took some exercise, she wouldn't be overweight
8. I am bad at English. That's why I can't do homework
=> If I weren't bad at English, I could do homework
9. He doesn't practise speaking French, so he doesn't speak it fluently 
=> If he practised speaking French, he would speak it fluently

-Câu điều kiện loại 2 diễn tả điều không thể xảy ra ở hiện tại hoặc tương lai.

-Cấu trúc: If+S+V(quá khứ đơn), S+would/could/might+ V

EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

If we had known your phone number, we could have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

If Simon lived near his mother, he could visit her often.

3/ she didn't hurry , so she missed the train

If she had hurried, she would have caught the train.

6/ John is fat because he eats so many chips

If John didn't eat so many chips, he wouldn't be fat.

7/ Bill never does anything if you don't tell him what to do.

-> Unless................... you tell Tom what to do, he will never do anything.........................................

8/ They don't have enough time so they cannot do me a favour.

If they had enough time, they could do me a favor.

9/we did not visit the museum because we had no time .

If we had had time, we would have visited the museum.

10/ we can't buy this car because it is very expensive

This car is too expensive for me to buy.

11/ Susan felf sick because he ate 4 cream cakes

If Susan hadn’t ate 4 cream cakes, he wouldn’t have felt sick

EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

=> If we had known your phone number , we would have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

=> If Simon lived near his mother , he could visit her often

3/ she didn't hurry , so she missed the train

=> If she had hurried , she wouldn't have missed the train

6/ John is fat because he eats so many chips

=> If John didn't eat so many chips , he wouldn't be fat

7/ Bill never does anything if you don't tell him what to do.

-> Unless....Bill never does anything , you tell him what to do ........

8/ They don't have enough time so they cannot do me a favour.

=> If they had enough time , they could do me a favour

9/we did not visit the museum because we had no time

=> If we had had time , we would have visited the museum

10/ we can't buy this car because it is very expensive

=> If it weren't very expensive , we could buy this car

11/ Susan felf sick because he ate 4 cream cakes.

=> If Susan hadn't eaten 4 cream cakes , he wouldn't have felt sick

164. It’s a six–hour drive from London to Edinburgh.
 It takes __SIX HOURS TO drive from London to Edinburgh.____
165. It’s ages since Alan visited his parents.
 Alan ___HASN'T visited his parents FOR AGES_____
166. Mr. Will lost his job because he was late every day.
 If _____MR WILL HADN'T BEEN LATE EVERYDAY, HE WOULDN'T HAVE LOST HIS JOB ____
167. The police made the youth empty his pocket.
 The youth ___WAS MADE TO EMPTY HIS POCKET BY THE POLICE__
168. Lawrence hasn’t seen his sister since she left for Japan.
 Lawrence last __SAW HER SISTER WHEN she left for Japan_____
169. John is fat because he eats so many chips.
 If __JOHN DIDN'T EAT SO MANY CHIPS, HE WOULDN'T HAVE BEEN FAT___
170. If Joe doesn’t change his way, he will end up in prison.
 Unless ___JOE CHANGE HIS WAY, he will end up in prison.__
171. Having a vacation abroad is interesting.
 It’s ______INTERESTING TO HAVE A VACATION ABROAD_______

1.If I were good at English, I could do homework.

2.If it snowed heavily, the meeting could be canceled.

3.If John didn't eat so many chips, he wouldn't be fat.

4.If the mobile phone wasn't too expensive, I would buy it.

5.If he played sport, he wouldn't be fat.

Đáp án A