1. Work hard and you will get good marks.

=> If ……you work hard, you will get good marks.….……………

2. Be careful or you will have an accident.

=> If …you aren't careful, you will have an accident.………

3. Hurry up or we will miss the last bus.

=> If ……we don't hurry up, we will miss the last bus.…..……….

4. If the weather isn’t beautiful, we will stay at home.

=> Unless …the weather is beautiful, we will stay at home.……

5. If we don’t start now, we won’t get on time.

=> Unless …we start now, we won’t get on time.…..………

6. If Lan doesn’t get up early, she will miss the train.

=> Unless ……Lan gets up early, she will miss the train.………..

7. If Ba doesn’t study harder, he will fail his next exam.

 => Unless ……Ba studied harder, he will fail his next exam.…

8. If you don’t promise to return back, I won't lend you.

=> Unless ....you promise to return back, I won't lend you.......

Rewrite the following sentences using the first confidential sentences.

3. The servant will come when you ring the bell.

If............................YOU RING THE BELL , THE SERVANT WILL COME..................................

7. People will travel more by public transport. The exhaust fumes in big cities will be reduced.

If...................PEOPLE TRAVEL MORE BY PUBLIC TRANSPORT , THE EXHAUST FUMES IN BIG CITIES WILL BE REDUCED..........................................

8. We start at 6.00. We will arrive there before noon.

If................WE SART AT 6.00 , WE WILL ARRIVE THERE BEFORE NOON......................................

9. The boy eats so many green apples. He will be ill.

If.................THE BOYS EAT SO MANY GREEN APPLES , HE WILL BE ILL...........................................

10. You join an English speaking club. Your speaking skill will be improved soon.

If............You join an English speaking club , Your speaking skill will be improved soon.............................................

11. Try harder and yoy will succeed.

If....................YOU TRY HARDER , YOU WILL SUCCEED.............................................

12. Take an umbrella or you will get wet.

If..................YOU TAKE AN UMBRELLA , YOU WON'T GET WET.........................................

13. Hurry and you will catch the bus.

If................YOU HURRY , YOU WILL CATCH THE BUS....................................................

14. Go out with me and you will feel at ease.

If....................YOU Go out with me , you will feel at ease.................................................

15. Read this book and you will get a lot of information.

If..............YOU Read this book , you will get a lot of information........................................

16. Join us and you will enjoy yourself.

If....................,.YOU .............................Join us , you will enjoy yourself..................

17. Ask him for advice and you will find a way out.

If..............YOU Ask him for advice, you will find a way out.....................................................

18. Work harder or you will fair the exam.

If...........YOU DON'T Work harder , you will fair the exam..........................................

19. Go right now or you will be late for school.

If.................YOU DON'T Go right now , you will be late for school..............................................

20. Take a rest or you work will tire you.

If.................YOU DON'T TAKE A REST , YOUR WORK WILL TIRE YOU...............................................

21. Hurry or you won't be able to catch the bus.

If...............YOU DON'T HURRY , you won't be able to catch the bus. , .................................................

22. Phone her or she won't come.

If...................YOU DON'T PHONE HER ,SHE WON'T COME............................................

1.Work hard and you will pass the Entrance examination 10

            If……you work hard, you will pass the Entrance examination 10………

                  2.Hurry up or you will not catch the first bus

            If …you don't hurry up, you will not catch the first bus………

  3.Recycle and we will save natural resources

            If …we recycle, we will save natural resources……

                   4. You should call the tourist agency. They will explain to you more clearly

            If …you call the tourist agency, they will explain to you more clearly ……

                   5. Unless she feels better, she won’t go to school tomorrow

             If …she feels better, she will go to school tomorrow………

                    6.If you don’t rest, you really will be ill

             Unless……you rest, you really will be ill……

                    7.Start at once or you will be late for school.

             If …you don't start at once, you will be late for school……………

8.I may have free time tomorrow. I’ll go out with you.

               If ……I have free time tomorrow, I’ll go out with you.…………

9.Be calm and everything will be all right.

               If …you are calm, everything will be all right…

10.Students don’t litter and our school yard is clean.

               If ……students don't litter, our school yard will be clean…………

E2. Underline vào từ/cụm từ sai trong các câu sau.

1.Her boss will give her a raise if she work =>works hard.

2.If you set =>don't set your alarm clock, you should wake up on time.

3.If you want=>don't want  to get wet, you should take an umbrella with you.

4.If it was=>is cold tomorrow, we will not go to the beach.

5.If you won't=>don't put the milk in the fridge, it will sour.

6.If Lam goes jogging regularly, he must=>will lose some weight.

7.You must get a passport if you want to travel abroad.

8.If we hurry, we will is=>be able to make it to the game.

9.If you will=>ommit go to school, you can wear a T-shirt and shorts. =

10.We can go for a walk if you came =>come early.

1, If we don't hurry up, we will be late for the bus

2, If you don;t study harder, you won't pass the exam 

3, If  we talk in class, we won't understand what the teacher is explaning

4, If you aren't carefull, you will break the flower vase

5, I will call the police if you don't give my cycle back

6, Unless you don't give my bicycle back, i will call the police

7, If you don't study harder, , you will fail the next exam 

8, If we aren't hurry up, we will late for the concert

9, If it doesn't stop ranning, we won't go out

10, UNless Joe change his way, he will end up in príon

1. Hurry up, or we will be late for the bus.

" If we ………………don't hurry up, we will be late for the bus……………………………………………………………………………

2. Study harder, or you won’t pass the final exam.

" If you ………………don't study harder, you won't pass the final exam……………………………………………………………………………

3. Don’t talk in class, or you won’t understand what the teacher is explaining.

" If we ………………talk in class, we won’t understand what the teacher is explaining. ……………………………………………………………………………

4. Be careful, or you will break the flower vase.

" If ….…………………………you are not careful, you will break the flower vase…………………………………………………………………

5. Give me the bicycle back, or I will call the police

" I will.…………………call the police if you do not give me the bicycle back…………………………………………………………………………

6. I’ll call the police if you don’t give back my bicycle. (Unless = If …. not)

→ Unless ……………you give back my bicycle, I will call the police……………………………………………………………………………

7. Study harder or you will fail in the next exams.

→ If ……………………you do not study harder, you will fail in the next exams…………………………………………………………………………

8. Hurry up or we’ll be late for the concert.

→ If ……………………you do not hurry up , we will be late for the concert…………………………………………………………………………

9. We won’t go out unless it stops raining.

→ If ………………………it does not stop raining, we will not go out………………………………………………………………………

10. If Joe doesn’t change his way, he will end up in prison.

→ Unless ………………Joe changes his way, he will end up in prison…………………………………………………………………………

6) If you don't hurry up you wiil miss the bus

7) Viet got wet because he forgot his raincoat

8) My brother is good at playing the guitar

9A

10C

6, If you don’t hurry up, we will miss the bus.

7, Viet got wet if he forgot his raincoat

8, My brother is a good guitar player.

9, A

10, C

41.He said: "They will take you to the hotel by car tomorrow"

->He said______they would take me to the hotel by car the following day.___________

42. Get up early or you will miss the bus.

->If ____you don't get up early, you will miss the bus____

43.He started working as an engineer 5 years ago.

->He has __worked as an engineer for 5 years______

44.Although he has a lot of money, He feels unhappy

>Despite____having a lot of money, he feels unhappy____

45.They have just bought an expensive car.

->An ___expensive car has just been bought by them

Ex 1 : Viết lại câu dưới dạng câu điều kiện 

1. You won’t lose weight if you eat so much,

  If you didn't eat so much, you would lose weight.

2. Hurry up or you will be late for the last train.

  If you don't hurry up, you will be late for the last train.

3. I will feel relaxed this weekend if I finish all my work by next Friday.

  I won’t feel relaxed this weekend if I don't finish all my work by next Friday.

4. If you don’t deal with your stress, your health will suffer.

Unless you deal with your stress, your health will suffer.

5. Stress hormones will stay in your body if you don’t do some exercise.

Unless you do some exercise, stress hormones will stay in your body.

6. You will feel very stressed if you don’t try to relax.

 You will feel very stressed unless you try to relax.

7. Keep silent or you’ll wake the baby up.

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

8. Don’t go out in the rain because you’ll get wet.

If you go out in the rain, you’ll get wet.

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

 Unless you are with me, I won’t enjoy the film

10. Stop talking or you won’t understand the lesson.

If you don't stop talking, you won’t understand the lesson.

11. You should take a map because you might get lost in those mountains.

 In case you get lost in those mountains, you should take a map.

12. If Joe doesn't change his ways, he will end up in prison.

 Unless Joe changes his ways, he will end up in prison.

13. If he doesn't work harder, he'll lose his job.

 Unless he works harder, he'll lose his job.

14. Joan will stay on at school unless she finds a good job before September.     

 If Joan doesn't find a good job before September, she will stay on at school.     

15. Unless someone has a key, we can't get into the house.

 We can not get into the house if someone doesn't have a key.

16. I’ll call the teacher if you don’t leave me alone.

 Unless you leave me alone, I’ll call the teacher.

17. When you ask me for the car, I will lend it to you.

 Unless you ask me for the car, I will not lend it to you.

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

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

19. Walk faster or you will miss the bus.

 If you don't walk faster, you will miss the bus.

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

 Unless you are with me, I won’t enjoy the film.

21. You must leave home early or you will miss the flight

 If you don't leave home early, you will miss the flight.

22. John will pass the driving exam if he isn’t nervous

 Unless John is nervous, he will pass the driving exam.

23. They will go on holiday if they have time.

 Unless they have time, they won't go on holiday.

24. You have to get up early or you will be late for school.

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

25. I'll only help you if you promise to try harder.

 Unless you promise to try harder, I won't only help you.

26. He will take a taxi if it rains.

 Unless it rains, he won't take a taxi.

27. Unless he phones immediately he won't get any information.

 If he doesn't phone immediately, he won't get any information.

Đổi câu sang if clauses (mệnh đề điều kiện)

1. He wants to pass the exam, so he works hard every day.

->If........................he works hard every day he can pass the exam..................................

2. They may not go swimming because it will be cold tomorrow

->If ........................it is cold tomorrow, they won't go swimming............................

3. We will have a party this weekend. We will invite some of our close friends.

-> If.......................we have a party this weekend, we will invite some of our close friends...............................

4. I will buy some tickets, and I will take the children to the movies.

->If..........................I buy some tickets, i will take the children to the movies...............................

5. Hurry up or you will be late for school.

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

6. Get up early or you will go to school late.

->If..........................you don't get up early, you will go to school late............................

7. Don't play in the rain or you will have a cold.

->If.............................you play in the rain, you will have a cold........................

8. Don't make noise or you'll wake the baby up.

->If..........................you make noise, you'll wake the baby up.........................

9. Be carefull or you'll break the glasses.

->If........................you aren't careful, you will brak the glasses.............................

10. Put garbage into the garbage bin or you will make the classroom dirty.

->If........................you don't put the garbage into the garbage bin, you will make the classroom dirty.............................

Đổi câu sang if clauses (mệnh đề điều kiện)

1. He wants to pass the exam, so he works hard every day.

->If.......he wants to pass the exam , he works hard every day..

2. They may not go swimming because it will be cold tomorrow

->If ...it weren't cold tomorrow , they might go swimming........

3. We will have a party this weekend. We will invite some of our close friends.

-> If. we have a party this weekend , we will invite some of our close friends

4. I will buy some tickets, and I will take the children to the movies.

->If......buy some tickets , I will take take the children to the movies

5. Hurry up or you will be late for school.

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

6. Get up early or you will go to school late.

->If....you get up early , you won't go to school late............

7. Don't play in the rain or you will have a cold.

->If...you play in the rain , you will have a cold......

8. Don't make noise or you'll wake the baby up.

->If......you make noise m you will wake the baby up......

9. Be carefull or you'll break the glasses.

->If........you are careful , you won't break the glasses...........

10. Put garbage into the garbage bin or you will make the classroom dirty.

->If........you don't put garbage into the garbage bin , you you will make the classroom dirty......

1 If she doesn't hurry up, she will miss the last train

2 She asked me why I was talking in English

3 heroically