1 . If you work hard you will pass the exam.
2 . If Henry fails his examination,his parents will be sad.
3. If sue go out this weekend,she wont have time to study. 
4. If it snow tomorrow I will go skiing.
5 . If he doesn’t leave soon he will mis the bus.
6 . If you phay with matches you will hurt yourself.

1. if you shouldnt work hard you wont pass the exam

2. if Henry failed his examination, his parent will be sad

3. Unless you come , I will go .

4.  if the weather'll snow tomorrow, i will go skiing

5. if he leave soon, he'll miss the bus

6. if you play the matches, you'll hurt yourself

1.   You should work hard, or you won’t pass the exam.

      If you work hard, you will pass the exam

2.   Henry fails his examination. His parents will be sad.

      If Henry fails his examination, his parents will be sad.

3.   If you don’t come , he will go

      Unless you come,  he will go

4.   I think it’ll snow tomorrow. I will go skiing.

      If it snows tomorrow. I will go skiing.

5.   He should leave soon, or he’ll miss the bus.

      If he doesn't leave soon, he’ll miss the bus.

6.   Don’t play with matches. You will hurt yourself.

     If you play with matches,you will hurt yourself.    

Rewrite the sentences without changing the meaning.

1. He 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

2. She is lazy so she can’t pass the exam.

→  If she weren’t lazy, she could pass the exam.

3. He will pay me tonight; I will have enough money to buy a car.

→ If he pays me tonight, I would have enough money to buy a car.

4. He smokes too much; that’s why he can’t get rid of his cough.

→ If  he didn't smoke too much, he would  get rid of his cough

5. She is very shy, so she doesn’t enjoy the party.

→ If she weren’t shy, she could enjoy the party.

6. I get a work permit. I will stay for another month.

→ If I get a work permit, I will stay for another month 

7. He doesn’t take any exercises. He is so unhealthy.

→ If he didn’t take any exercises, he is so unhealthy

8. We can’t get the ket because I don’t have the right change.

→ If I had the right change,we could get the ket

9. Study hard or you won’t pass the exam.

→ If you study hard, you would pass the exam

10. Don’t be impatient or you will make mistakes.

→ If you are impatient, you will make mistakes.

1. The river which flows through Ho Chi Minh City is the Sai Gon River.

2. Mr Phong who is supposed to be at the meeting hasn’t come yet.

3. Our solar system is in a galaxy which is called the Milky Way.

4. I come from a city which is located in the southern part of the country.

5. I’ve recently gone back to the town where I was born.

6. Do you know the name of the hotel where John is staying?

7. There are some words which are very difficult to translate.

8. What is the name of the man whose car you borrowed?

9. This watch which I have lost costs a lot of money.

10. We were given a lot of information most of the which was useless.

VI-Supply the correct verb form

1. If you study (study) hard, you will pass the written examination

2. If the weather is (be) fine, We will go for a picnic

3. He will write (write) to you if he has time

4. They will have (have) a lot of fun if they come there

5. If she doesn't hurry(not hurry), she will miss the bus

6.Had I had a map, I wouldn't have lost way (not lose)

7. He said he would go (go) to HCM city the following day

8. She asked if my school was (be) near there

9. Maryam said she had to (must) go then

10. I asked her where she lived (live)

11. The examiner asked me if I spoke (speak) any foreign languages

  She will take the bus home if her mother doesn't pick her up. (NOT/ PICK)          You won’t pass the examination if you don't study more. (NOT/ STUDY)

  if the student doesn't try harder, he won’t pass the examination. (NOT/ TRY)

       If he hadn’t wasted too much time, he wouldn't have failed in his examination. (NOT/ FAIL)

     If we leave for the meeting now, we will go there on time. (GO)                              Unless she turns up, her friends will be disappointed. (TURN UP)

She will take the bus home if her mother____doesn't pick________ her up. (NOT/ PICK)    

     You won’t pass the examination if you ____don't study______ more. (NOT/ STUDY)

  if the student _____doesn't try____ harder, he won’t pass the examination. (NOT/ TRY)

       If he hadn’t wasted too much time, he___wouldn't have failed_______ in his examination. (NOT/ FAIL)

     If we leave for the meeting now, we __will go______ there on time. (GO)                              Unless she ___turns up_____, her friends will be disappointed. (TURN UP)

1. doesn't pick

2. don't study

3. doesn't try

​4.  wouldn't have failed

5. will go

​6. turns up

Exercise 1:

1 would make

2 went

3 tries

would make

went

tries

1 would make

2 went

3 tries

1, If you don't study hard, you will fail the exam

=> If you study hard, you won't fail the exam

2, If you don't work hard, you will fail the examination

=> If you work hard, you won't fail the examination

3, If you don't water flowers, they will die

=> If you water flowers, they won't die

4, If we don't keep the environment clean, we won't have an ideal place to live 

=> If we keep the environment clean, we will have an ideal place to live

5, If you get up early, you won't be late for school

=> If you don't get up early, you will be late for school

1. Study hard or you will fail the exam.

→ If you don't study hard, you will fail the exam.

→ If you study hard, you won't fail the exam.

2. Work hard or you won’t pass your examination.

→ If you don't work hard, you won't pass your examination.

→ If you work hard, you will pass your examination.

3. Water flowers or they will die.

→ If you don't water flowers, they will die

→ If you water flowers, they won't die.

4. Keep the environment clean or we won’t have an ideal place to live.

→ If we don't keep the environment clean, we won't have an ideal place to live

→ If we keep the environment clean, we will have an ideal place to live.

5. Get up early or you’ll be late for school.

→ If you don't get up early, you will be late for school.

→ If you get up early, you won't be late for school.

* Nhìn chung thì đây là những câu điều kiện loại 1 cơ bản. Mình cho khẳng định và phủ định làm thành 2 dạng câu.

* Cấu trúc:

- Câu điều kiện loại 1: If + Present simple, S + will/can + V (bare)

- Câu điều kiện loại 2: If + Past simple, S + would/could + V (bare)

- Câu điều kiện loại 3: If + Past perfect, S + would have + VPII

1.If you..study.(study) hart,you will pass the written examination.

2.If the weather..is.(be)fine,we will go for a picnic.

3.he.will write..(write)to you if he time.

4.They...(have)a lot of fun if they come there.

will have

5.If she..doesn't hurry.(not hurry),she will miss the bus.

6.You would feel better if you(take)..took.a short rest.

7.What(happen).would happen..if the moon disappeared?

8.If I..were.a bird,I would be a dove.

9.Ifwe flew,we(see)..would see.the world from above easily.

10.Had I had a map .I..wouldn't have lost.(not lose)way.

1.If you.STUDY..(study) hart,you will pass the written examination.

2.If the weather.IS.(be)fine,we will go for a picnic.

3.he..WILL WRITE.(write)to you if he time.

4.They..WILL HAVE.(have)a lot of fun if they come there.

5.If she..DOESN'T HURRY.(not hurry),she will miss the bus.

6.You would feel better if you(take).TOOK..a short rest.

7.What(happen)...WOULD HAPPEN if the moon disappeared?

8.If I..WERE.a bird,I would be a dove.

9.If we flew,we(see).WOULD SEE..the world from above easily.

10.Had I had a map .I..WOULDN'T HAVE LOST.(not lose)way.