1. If you turn off all lights, you will not pay more money.

2. If she doesn't wear warm clothes, she will have a cold.

3. If you aren't careful, you may have an accident

4. If you don't phone your parents, you will have a trouble

5. If she doesn't whisper, everyone will know what she is saying

6. If you stay here, you will feel safe

7. If you pay electricity bill today, your electricity will not be cut off

8. If you stop smoking, your cough may not be worse

9. If it doesn't stop raining today, we may be faced with a serious flood

10 If you do morning exercises regularly, your body will be fitter

1. Turn off all the lights and you will not pay more money.

If you turn off all the lights, you will not 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

3. Be careful or you may have an accident.

If you aren't careful, you may have an accident

4. phone your parents or you have a trouble.

If you don't phone your parents, you will have a trouble

5. Unless she whispers, everyone knows what she is saying.

If she doesn't whispers, everyone knows what she is saying

6. Stay here and you will feel save.

If you stay here, you will feel safe

7. Pay electricity bill today or your electricity will be cut off.

If you don't pay electricity bill today, your electricity will be cut off

8. Stop smoking otherwise your cough may be worse.

If you don't stop smoking, your cough may 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 may be faced with a serious flood

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. The air in John's area is polluted , so he has breathing problem. ( if / because / because of / make / lead )

=>If the air in John's area weren't polluted,he wouldn't have breathing

=>Because The air in John's area is polluted , he has breathing

=>John has breathing because of the polluted air in his area

=>The polluted air in John's area makes him breath

2. The soil is posoned because farmers use too many pesticides and herbicides . ( so )

- If farmer ..didn't use too many pesticides and herbicides,the soil wouldn't be posoned................

=>Farmers use too many pesticides and herbicides,so the soil is posoned

3. Turn off all the lights and you will not pay more money - If you Turn off all the lights,you will not pay more money ..............

Unless you Turn off all the lights,you will pay more money .............. .........................

4. Be careful or you may have an accident -

If .you are careful,you may not have an accident........................

Unless you are careful ,you may have an accident.............................

5. He can't understand what she has said because he doesn't know English . ( If / so / because of )

=>If he knew E,he could understand what she has said

=>he doesn't know E,so He can't understand what she has said

=>Because of not knowing E,he can't understand what she has said

6. Many people have stomachache due to the contaminated food ( because / so / if )

=>Because the food is contaminated,many people have stomachache

7. There is sewage in the lake , so the aquatic animals die . ( because / result / due to / make if )

=>Because there is sewage in the lake,the aquatic animals die

=>Ban lm tg tu nhes

Đề bài là như thế nào bạn nhỉ?

4 Unless you invite her, she won't go to the party

5 Unless you run, you won't be on time

6 If you don't pay the money, I will call the police

7 Unless you put on your coat, you will get a cold

8 Unless he stops smoking, he will have problems later 

9 If he doesn't know the news, he won't come back

10 Unless you help me, I won't give you that Beyonce'CD

1. If we miss the bus,we will take the taxi

Unless we  miss the bus,we will not take the taxi

2.I will give you a lift if you don't have a bicycle

Unless you have a bicycle, I will give you a lift 

3.Unless he wins the money,he won't have enough money to pay his bills

If he doesn't win the money,he won't have enough money to pay his bills

Hoàn thành các câu sau sử dụng câu điều kiện loại một và các từ sau: not get,have,become,continue,throw,put,decrease,turn off.

1. If all people throw the garbage on the roads or rather wherever they find, the Earth wiil be flooded in the garbage.

2.The pollution will decrease if we find ways to reuse old items.

3. If Trung brings his lunch to his picnic, he will put the food in a reusable box.

4. If I leave a room,I will turn off the lights and the fans.

5. If Hue has old books and clothes, she will swap them with me.

6. There will be more floods if deforestation continues to happen.

7. If soil pollution becomes more serious, a large number of plants will die.

1. I would be surprised if Ann came to see us now.

2. If we had enough money,we would go on holiday

3. Unless you do these exercises more carefully, you will fail the exam.

4. If I knew the answer, I could tell you.

5. If she knew French, she could apply for the job

6. Unless she cam here now, we'd come back home

7. Unless you are careful, you will be able to get the job

8. If it rains soon, the tree won't die

* Rewrite the sentences.

1. It is late now; I don't think Ann will come to see us.

-> I would be surprised if __________Ann came to see us________.

2. We don't go on holiday because we don't have enough money.

-> If _________we had enough money, we would go on holiday_________.

3. Do these exercises more carefully or you will fail the exams.

->Unless_________you do these exercises more carefully, you will fail the exams_________.

4. I do not know the answer so I cannot tell you.

-> If _________I knew the answer, I could tell you_________.

5. She can't apply for the job because she doesn't know Frencj.

-> If she knew__________Frencj, she could apply for the job________.

6. If she didn't come here now, we'd come back home.

-> Unless__________she came here now, we'd come back home________.

7. Be careful or you will not be able to get the job.

-> Unless__________you are careful, you won't be able to get the job________.

8. The trees will die unless it rains soon.

-> If_________it doesn't rain soon, the trees will die_________.

1) It is late now; I don't think Ann will come to see us

-> I would be surprised if Ann came to see us.

2)We don't go on holiday because we don't have enough money

-> If we had enough money, we would go on holiday.

3) Do these exercises more carefully or you will fail the exams

-> Unless you do these exercises more carefully, you will fail the exams.

4) I do not know the answer so I can not tell you

-> If I knew the answer, I could tell you.

5) She can't apply for the job because she doesn't know French

-> If she knew French, she could apply for the job.

6) if she didn't come here now, we'd come back home

-> Unless she came here now, we'd come back home.

7) Be careful or you will not be able to get the job

-> Unless you are careful, you will be able to get the job.

8) The trees will die unless it rains soon

-> If it doesn't rains soon, the trees will die.