1B

2A

3D

1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the eviroment , we will destroy ourselves

7. If she is more hard - working , she will get low marks

=> Unless she isn't more hard-working , she'll get low marks

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents , he will fail

1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6.If she doesn't work harder, she'll lose her job

=> Unless she works harder, she won't lose her job

7.We will cycle to school every day. We will keep fitter

If we cycle to school every day, we will keep fitter .

8. We will use recycled products. We will save money

If we use recycled products, we will save money.

đây là tiếng anh lớp 6 hỉ

1.   Recycle and we will save natural resources. 

→ If we recycle, we will save natural resources. 

2.Hurry up or you will be late for work

→ If you don't hurry up, you will be late for work

→ Unless you hurry up, you will be late for work

3.     Don’t leave the lights all night or you’ll waste electricity.

→ If you  leave the lights all night, you’ll waste electricity.

4.     You can improve your English by practicing speaking English every day.

→ If you practice speaking E everyday, you can improve your ENglish

5.     Phone me tonight or he won’t get any information. 

→ If he doesn't phone me tonight, he won’t get any information. 

→Unless he phones me tonight, he won’t get any information. 

6. “Where are you living now?” I said to him 

→ I asked him where he was living then

7.“What do you do to improve your English?” the examiner asked me. 

→ The examiner asked me what I did to improve my English

8. “Will you finish these reports for me tomorrow, Mary?” said Peter  

→ Peter asked Mary if she would finish thóe reports for him the day after

9.“I must stay at home tonight to do my homework” said John.

→ John said ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­he had to stay at home that night to do his homework

10. “You can use my telephone if you need it.” said Lan to me    

→ Lan told me I could use her telephone if I needed it

1) he speak very quickly so i can't understand him

-> if he didn't speak very quickly, l could understand him.

2) i don't knoww his address , that's why i can't visit him

->If l knew his address, l could visit him.

3) do your homework ỏ you will be punished by the teacher

->If you don't do your homework, you will be punished by the teacher.

4) tell the police the truth , they will believe rou

->If you don't tell the police the truth,they will believe rou

5) keep your feet dry or you will believe you

->if you don't keel your feet dry ,you will believe you.

6) learn hard or you will get a cold

->ìf you don't learn hard,you will get a cold.

7)save the electricity or wqe have run out of energy

->ìf we don't save the electricity, we have run out of energy.

8)don't throw the trash in the street , the air will be polluted

->if you throw the trash in the street, the air will be polluted.

9) if save don't keep your feet dry , you will be catch a cold

->unless save keeps your feet dry,you will be catch a cold.

10) she will get good mark if she leans harder and harder

->unless she learns harder and harder, she won't get good mark.

11) they will be died if they aren't taken to the hospital

->unless they are taken to the hospital, they will be died.

12) we will have a picnic unless it rains

->if it doesn't rain,we will have a picnic.

13)i will buy that book if it isn't so expensive

->unless it is so expensive, l will buy that book

14) they will not help you if they don't have time

->if they have time ,they will help you.

->unless

15) he is overweight beacause he eats so much chocolate

->ìf he didn't eat so much chocolate, he wouldn't be overweight.

16) i mised the bus this morning , so i was be late for class

->if l hadn't missed the bus this morning, l wouldn't have been late for class.

17) he didn't pass the exam becausr he didn't work hark

->ìf he had worked hard,he would have passed the exam.

18) he didn't wear glove so the police caught him

->if he had worn glove,the police wouldn't have caught him

19) i was drowning , but he saved me

_if l hadn't been drowning, he wouldn't have saved me.

20) i will only help you if promise to try harder

-> if you promised to try harder, l will only help you.

làm hộ mk nha cần gấp !!!

1. I won't go to school unless I feel better.

2. Tony won't you unless you question him.

3. Unless you put  on your overcoat, you’ll be cold.

4. You will fail the exam unless you work hard.

5. You’ll get a cold unless you keep your feet dry.

6. Unless I leave now, I’ll miss my flight.

III. Rewrite the following sentences .(2.5ms)

1. You practise your English regularly or your English does not improve .

If you practise your English regularly, your English will improve.

2. Water the plants regularly or they will die .

If you don't water the plants regularly, they will die.

3.Only if you study hard , you will pass the test .

Unless you study hard, you won't pass the test.

4.Work harder , otherwise you will fail the exam .

You will fail the exam unless you work harder.

5.If we don't hurry, we will be late for the show.
Unless we hurry, we will be late for the show.

you will catch a cold if you don't keep your feet dry     

unless..you keep your feet dry, you will catch a cold...

you will catch a cold if you don't keep your feet dry     

unless...you keep your feet dry, you will catch a cold..

you will catch a cold if you don't keep your feet dry     

-> Unless you keep your feet dry, you will catch a cold.

1. We must leave now , or we will miss the plane

=> If we don't leave now , we will miss the plane

2. Be careful or you many fall

=> If you are careless , you may fall

3. Hurry up or we'll be late for the concert

=> If we don't hurry up , we will be late for the concert

4. Oủ sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy , it will soon end

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry , you will catch a cold

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the eviroment , we will destroy ourselves

7. Unless she is more hard - working , she will get low marks

=> If she isn't more hard-working , she'll get low marks

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents , he will fail

1. We must leave now , or we will miss the plane

=> If we don't leave now, we will mis the plane.

2. Be careful or you many fall

=> If you aren't careful, you'll fall.

3. Hurry up or we'll be late for the concert

=> If you don't hurry up, you'll be late for the concert.

4. Our sources of energy will soon end if we don't try to save them

=> Unless we try to save our sources of energy, they will soon end.

5. You will catch a cold if you don's keep your feet dry

=> Unless you keep your feet dry, you will catch a cold.

6. Unless we protect the envirmonent , we will destroy ourselves

=> If we don't protect the envirmonent, we will destroy ourselves

7. Unless she is more hard - working , she will get low marks

=> If she isn't more hard working, she will get low marks.

8. Unless he listens to his parents , he will fail

=> If he doesn't listen to his parents, he will fail.

he tells the truth, no one can help him.

you don't  keep your feet dry, you will catch a cold.

he didn't  phone immediately, he wouldn't meet Mary.

unless he  doesn't tell the truth , no one can help him

if you don't  keep your feet dry, you will catch a cold.

if he didn't  phone immediately, he wouldn't meet Mary.