Mẫu câu conditional 1:

If + S + V, S + will + V

1. Turn off all the lights and you will not pay more money.
If you turn of all the lights, you won't pay more money.
2. Unless she wears warm clothes, she will have a cold.
If she doesn't wear warm clothes, she will have a cold.

CHÚ THÍCH: unless=if not
3. Be careful or you may have an accident.
If you don't be careful you may have a accident.
4. phone your parents or you have a trouble.
If don't phone your parents, you'll have a trouble.
5. Unless she whispers, everyone knows what she is saying.
If she doesn't whisper, everyone will know what she is saying.

6. Stay here and you will feel save.
If you stay here, you'll feel save.
7. Pay electricity bill today or your electricity will be cut off.
If .you don't pay electricity today, your electricity will be cut off.
8. Stop smoking otherwise your cough may be worse.
If you don't stop smoking, your cough will be worse.
9. Unless we use less fossil fuel, they will be run out soon.
If we don't use less fossil fuel, they will be run out soon.
10. Unless it stops raining today, we may be faced with a serious flood.
If it doesn't stop raining today, we will may face with a serious flood.

   1.     Don’t go out in the rain because you will get wet.

     __If you go out in the rain, you will get wet._________________________ .

   2.     I won’t enjoy the film if you aren’t with me.

     _I won’t enjoy the film unless you are with me.__________________________ .

   3.     My brother will have enough money. He will buy a bicycle.

     __If my brother has enough money, he will buy a bicycle._________________________ .

   4.     I will buy a new hat. I will give it to you.

     __ If I buy a new hat, I will give it to you._________________________ .

   5.     Let’s ask the teacher. He will explain it to you.

     __If you ask the teacher,he will explain it to you._________________________ .

1.If you go out in the rain,you will get wet.

2.If you aren't with me,I will not enjoy the film.

3.If my brother has enough money,he will buy a bicycle.

4.If I buy a new hat,I will give it to you.

5.If you ask the teacher,he will explain it to you.

II/ Rewrite the following sentences, using “The first conditional sentence”.

1. Your mum will be very surprised when you cook her breakfast.

- If ___________________you cook your mum her breakfast, she will be very surprised__________________________________________.

2. Follow these safety instructions or you may get burn.

- If you _______________don't follow these safety instructions, you may get burn__________________________________________.

3. Children may only eat junk food unless we talk to them about healthy eating.

- If we don’t ________________________take to children about healthy eating, they may only eat junk food ______________________________.

1 If you go out in the rain, you will get wet

2 If you are with me, I will enjoy the film

3 If my brother has enough money, he will buy a bicycle

1. If you go out in the rain, you will get wet.

2. If you aren't with me, I won't enjoy the film.

3. If my brother has enough money, he will buy a bycicle

Rewrite the sentences, using Conditional sentences 

1. Read that book, and you will understand that problem

-> If you read that book, you will understand that problem

-> Unless you read that book, you won't understand that problem

2. Go to the seaside with me, and you will have a lot of fun

-> If you go to the seaside with me, you will have a lot of fun

3. Take morning exercises regularly, and you will feel healthy

-> If you take morning exercises regularly, you will feel healthy

4. Nam will get better, but he has to take his medicine

-> If Nam takes his medicine, he will get better

5. Hoa will catch the bus, but she has to leave now

-> If Hoa leaves now, she will catch the bus

6. Ba won't be late but he has to hurry

-> If Ba hurries, he won't be late

7. Do more grammar exercises or you'll get poor marks

-> If you don't do more grammar exercises, you will get poor marks

-> Unless you do more grammar exercises, you will get poor marks

8. Hurry up or you will be late for school

-> If  you hurry up, you won't be late for school

-> Unless you hurry up, you will be late for school

9. Be careful or you will fall over the rock

-> If you are careful, you won't fall over the rock

-> Unless you are careful, you will fall over the rock

1. Read that book, and you will understand that problem

-> If you don't read that book, you won't understand that problem 

-> Unless you read that book, you won't undertand that problem

2. Go to the seaside with me, and you will have a lot of fun

-> If you don't go to the seaside with me, you won't have a lot of fun

3. Take morning exercises regularly, and you will feel healthy

-> If you don't take morning exercise regularly, you won't feel healthy

4. Nam will get better, but he has to take his medicine

-> If Nam doesn't have to take his medicine, he won't get better

5. Hoa will catch the bus, but she has to leave now

-> If Hoa doesn't leave now, she won't catch the bus

6. Ba won't be late but he has to hurry

-> If Ba doesn't hurry, he will be late

7. Do more grammar exercises or you'll get poor marks

-> If you don't do more grammar exercises, you will get poor marks

-> Unless you don't more grammar excercises, you will get poor marks

8. Hurry up or you will be late for school

-> If you don't hurry up, you will be late for school

-> Unless you hurry up, you won't be late for school

9. Be careful or you will fall over the rock

-> If you are not careful, you will fall over the rock

-> Unless you careful, you won't fall over the rock

1. Read that book, and you will understand that problem

-> If you read that book, you will understand that problem

-> Unless you read that book, you won't understand that problem

2. Go to the seaside with me, and you will have a lot of fun

-> If you go to the seaside with me, you will have a lot of fun

3. Take morning exercises regularly, and you will feel healthy

-> If you take morning exercises regularly, you will feel healthy

4. Nam will get better, but he has to take his medicine

-> If Nam takes his medicine, he will get better

5. Hoa will catch the bus, but she has to leave now

-> If Hoa leaves now, she will catch the bus

6. Ba won't be late but he has to hurry

-> If Ba hurries, he won't be late

7. Do more grammar exercises or you'll get poor marks

-> If you don't do more grammar exercises, you will get poor marks

-> Unless you do more grammar exercises, you will get poor marks

8. Hurry up or you will be late for school

-> If  you hurry up, you won't be late for school

-> Unless you hurry up, you will be late for school

9. Be careful or you will fall over the rock

-> If you are careful, you won't fall over the rock

-> Unless you are careful, you will fall over the rock

Exercise 2. Rewrite the following sentences using conditional sentence type 1 

1. Drive carefully or you will cause accident.

=> If you drive to fast, you may have an accident

2. Be quiet or you’ll wake the baby up

=> If you don’t keep silent, you’ll wake the baby up.

3. I don’t have free time, that’s why I can’t go to see him.

=> If I had free time, I would go to see him

3. C. Read the sentences with the zero conditional and the first conditional. Underline the correct verb form. 

(Đọc các câu điều kiện loại 0 và điều kiện loại 1. Gạch chân dạng đúng của động từ.)

1. If you need some money, go / will go to the ATM.

2. Put on your coat if it rains / will rain.

3. If our friends come tonight, we have / ’ll have a party.

4. If you don’t pay me, I didn’t do / won’t do the work.

5. If you press / will press this button, the washing machine turns off.

6. We meet / ’ll meet you at the airport if we have time tomorrow.

7. I ask / ’ll ask my parents for the money if the bank doesn’t give me a loan.