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Viết lại câu là câu điều kiện loại 1
1.He doesn't take any exercises.He is so unhealthy =>If he takes exercises,he won't be unhealthy
2.We can’t get the ticket because I don’t have the right change.=> If i have the right change, we can get the ticket
3.Study hard or you won’t pass the exam.=>If you don't study hard, you won’t pass the exam.
4.Don’t be impatient or you will make mistakes.=>If you aren't impatient, you will make mistakes
5.My mother will have enough money.She will buy a new house=>If my mother has enough money, She will buy a new house
6.Getting up late makes him feel tired =>If he doesn't get up late, he won't feel tired
7.Henry will finish the report. He will go out for a walk=>If Henry finishes the report, he will go out for a walk
8.Do the homework for me, and i'll give you a gift =>If you do the homework for me, i'll give you a gift
9.Watching TV makes me feel relaxed=>If i watch TV, I'll feel relaxed
10. Don't tell lies to your boss or you'll be fired at once=>If you tell lies to your boss , you'll be fired at once
1.He doesn't take any exercises.He is so unhealthy
=>If He doesn't take any exercrise, he'll unhealthy
2.We can’t get the ticket because I don’t have the right change.
=> If I don't have the right change, we won't get the ticket
3.Study hard or you won’t pass the exam.
=>If you study hard, you'll pass the exam
4.Don’t be impatient or you will make mistakes.
=>If you impatient, you'll make mistakes
5.My mother will have enough money.She will buy a new house
=>If my mother have enough money, she'll buy a new house
6.Getting up late makes him feel tired
=>If he gets up late, he'll feel tired
7.Henry will finish the report. He will go out for a walk
=>If Henry finish the report, he'll go out for a walk
8.Do the homework for me, and i'll give you a gift
=>If you do the homework for me, I'll give you a gift
9.Watching TV makes me feel relaxed
=>If I watch TV, I'll feed relaxed
10. Don't tell lies to your boss or you'll be fired at once
=>If you tell lie to your boss, you'll be fired at once
Study hard 
Complete each of the following sentences so that it means the same as the sentence before it.
1. She doesn't live in London because she doesn't know anyone there.
=> She'd ..................LIVE IN LONDON IF SHE KNEW SOMEONE THERE.....................
2. I can't live in the country because i can't find a job there.
=> I'd ………………LIVE IN THE COUNTRY IF I COULD FIND A JOB THERE…………………
3. The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow.
=> If the SCHOOLchildren ………WATERED SOME SEEDS, THEY WOULF GROW………
5. They don't understand the problem. They won't find a solution.
=> If they ……………understood the problem, they’d find the solution.………………
6. He sits around too much. He isn't fit.
=> If he ……………didn’t sit around too much, he’d be fit.…………………
7. She's very thin: perhaps that's why she feels cold so much.
=> If she ……………wasn’t too thin, she wouldn’t feel cold so much.………………
8. Carol didn't answer the phone because he was studying.
=> If Carol …………hadn’t been studying, she’d have answered the phone.………………
9. He never polishes his shoes, sho he never look smart.
=> If he ……………polished his shoes, he’d look smart.…………………
10. He can't park near his office: that's why he doesn't come by car.
=> If he ……………could park near his office, he’d come by car.…………………
11. My house is guarded by two big dogs. That's the only reason it isn't broken into every night.
=> If my house ………was guarded by two big dogs, it’d be broken into every night.……………
12. The flats are not clearly numbered, so it is very difficult to find anyone.
=> If the flats …………were clearly numbered, it wouldn’t be difficult to find someone.……………
13. I don't know her email address, so i can't tell you.
=> If i ………………knew her e-mail address, I could tell you.…………………
14. She work in the evening. She has no time to play with her children.
=> If she ……………didn’t work in the evening, she’d have time to play with her children.………………
15. I don't want them to be upset, so I've decided not to tell them what happened.
=> They'd ……………be upset if I told them what happened.…………………
16. I am not tall enough to join the basketball team.
=> If I ………………was tall enough, I would join the basketball team.…………………
17. He doesn't see the signal so he doesn't stop his car.
=> If he ………………saw the signal, he’d stop his car.………………
18. Peter gets bad marks because he doesn't prepare his lesson well
=> If Peter …………prepared his lessons well, he wouldn’t get bad marks.………………
19. Mary doesn't have enough money. She can't buy a new car.
=> If Mary …………had enough money, she’d buy a new car.………………
20. Go right now or you'll be late for the train.
=> If you …………don’t go right now, you’ll be late for the train.……........………
21. He doesn't apply for the job because he doesn't have enough qualifications.
=> If he ……………… had enough qualifications, he’d apply for the job.………………
22. Hurry up, or we will be late for the exam.
=> If we ……………don’t hurry, we’ll be late for the exam.…………………
23. They do not understand you because you do not often talk to them.
=> If you ……………often talked to them, they’d understand you.………………
24. Because you speak English unnaturally, they do not understand you.
=> If you ……………spoke English naturally, they’d understand you.………………
Complete each of the following sentences so that it means the same as the sentence before it.
1. She doesn't live in London because she doesn't know anyone there.
=> She'd ....................live in London if she knew someone there...................
2. I can't live in the country because i can't find a job there.
=> I'd ………………live in the country if I could find a job there…………………
3. The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow.
=> If the children ………hadn't forgotten to water the seeds, they would have grown………
5. They don't understand the problem. They won't find a solution.
=> If they ………………understood the problem, they would find a solution……………
6. He sits around too much. He isn't fit.
=> If he ………………didn't sit around too much, he would be fit………………
7. She's very thin: perhaps that's why she feels cold so much.
=> If she ………………weren't very thin, she wouldn't feel cold so much……………
8. Carol didn't answer the phone because he was studying.
=> If Carol ……………hadn't been studying, he would have answered the phone……………
9. He never polishes his shoes, so he never look smart.
=> If he ………………polished his shoes, he would look smart………………
10. He can't park near his office: that's why he doesn't come by car.
=> If he ………………could park near his office, he would come by car………………
11. My house is guarded by two big dogs. That's the only reason it isn't broken into every night.
=> If my house …………weren't guarded by two big dogs, it would be broken into every night…………
12. The flats are not clearly numbered, so it is very difficult to find anyone.
=> If the flats ……………were clearly numbered, it wouldn't be very difficult to find someone…………
13. I don't know her email address, so i can't tell you.
=> If i ………………knew her email address, I could tell you…………………
14. She work in the evening. She has no time to play with her children.
=> If she ………………didn't work in the evening, she would have time to play with her children……………
15. I don't want them to be upset, so I've decided not to tell them what happened.
=> They ………………would be upset if I told them what had happened………………
16. I am not tall enough to join the basketball team.
=> If I …………………were tall enough, I would join the basketball team………………
17. He doesn't see the signal so he doesn't stop his car.
=> If he ………………saw the signal, he would stop his car………………
18. Peter gets bad marks because he doesn't prepare his lesson well
=> If Peter ……………prepared his lesson well, he wouldn't get bad marks……………
19. Mary doesn't have enough money. She can't buy a new car.
=> If Mary ……………had enough money, she could buy a new car……………
20. Go right now or you'll be late for the train.
=> If you ………………don't go right now, you'll be late for the train........………
21. He doesn't apply for the job because he doesn't have enough qualifications.
=> If he ………………had enough qualification, he would apply for the job………………
22. Hurry up, or we will be late for the exam.
=> If we ………………don't hurry up, we will be late for the exam………………
23. They do not understand you because you do not often talk to them.
=> If you ……………often talked to them, they would understand you………………
24. Because you speak English unnaturally, they do not understand you.
=> If you ………………speaked English naturally, they would understand you……………
1) I’ll call the teacher if you don’t leave me alone.
Unless you leave me alone, I will call the teacher.
2) When you ask me for the car, I will lend it to you.
Unless you ask me for the car, I won’t lend it to you.
3) Don’t go out in the rain because you will get wet.
If you go out in the rain, you will get wet.
4) Walk faster or you will miss the bus.
If you don’t walk faster, you will miss the bus.
Tham khảo
1) I’ll call the teacher if you don’t leave me alone.
Unless you leave me alone, I will call the teacher.
2) When you ask me for the car, I will lend it to you.
Unless you ask me for the car, I won’t lend it to you.
3) Don’t go out in the rain because you will get wet.
If you go out in the rain, you will get wet.
4) Walk faster or you will miss the bus.
If you don’t walk faster, you will miss the bus.
1 He smokes so much , perhaps that's why he can't get rid of his cough
=> If he didn't smokes so much, he will get rid of his cough
2 She is very shy , that's why she doesn't enjoy parties
=>If she weren't verry shy, she will enjoy the parties
3 I haven't the right change so we can't get tickets from the machine
=>If I have the right change, we will get tickets from the machine
4 They speak French to her , not English , so her Eghlish doesn't improve
=> If they don't speak French to her, her English will be improve
5 He doesn't work overtime , so he doesn't earn as much as I do
=>If he work overtime, he will earn as much as I do
6 My number isn't in the directory so people don't ring me up
=>If my number is in the directory, people will ring me up
7 He is very thin perhaps that't why he feels very cold
=>If he isn't verry thin, he will not feels very cold
8 I'm far , that't why I can't get through the bathroom's window
=>If I'm not fat, I will be able to get through the bathroom's window
Rewrite these sentsnces , using 'if ' construction :
1 He smokes so much , perhaps that's why he can't get rid of his cough
=> If he didn't smoke so much, he could get rid of his cough
2 She is very shy , that's why she doesn't enjoy parties
=> If she weren't very shy, she would enjoy parties
3 I haven't the right change so we can't get tickets from the machine
=> If I had the right change, we could get tickets from the machine
4 They speak French to her , not English , so her Eghlish doesn't improve
=> If they spoke English to her, she could improve her English
5 He doesn't work overtime , so he doesn't earn as much as I do
=> If he worked overtime, he would earn as much as I do
6 My number isn't in the directory so people don't ring me up
=> If my number were in the dictionary, people would ring me up
7 He is very thin perhaps that't why he feels very cold
=> If he weren't very thin , he wouldn't feel very cold
8 I'm far , that't why I can't get through the bathroom's window
=> If I weren't fat, I could get through the bathroom's window
Help me.
8. He smokes too much: that's why he can't get rid of his cough.
=>If he didn’t smoke too much, he could get rid of his cough.
9. She is very shy, so she doesn't enioy the party.
=> If she weren’t very shy, she would enjoy the party.
10. I will get a work permit. I will stay for another month.
=> If I get a work permit I will stay for another month.
11. He doesn't take any exercises. He is so unhealthy.
=> If he took some exercises, he weren't so unhealthy
12. We can't get the ticket because I don't have the right change.
=> If I had the right change, we could get the ticket.
15. My mother will have enough money. She will buy a new house.
=> If my mother have money, she will buy a new house.
16. Getting uplate makes him feel tired.
=> If he doesn't get up late, he won't feel tired/
17. Henry will finish the report. he will go out for a walk.
=> If Henry finishes the report, he will go out for a walk/
18. Do the homework for me, and I'll give you a gift.
=> If you do the homework for me, I'll give you a gift.
19. Watching TV makes me feel relaxed.
=> If I watch TV, I will feel relaxed.
1. If you __are__ (be) scared of spiders, don't go into the garden.
2. We'll have to go without Jonh if he (not arrive)__doesn't arrive___ soon
3. Please don't disturb him if he (be) ____is_____ busy.
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
exercise 4 .rewrite the flowing sentence with the same meaning
1 if you don't study harder ,you 'll fail the next exam
=> Unless................................. you study harder, you will fail the next exam......................................
2 if he doesn't practiese writing every day ,he can't improve his writing skill
=>Unless............. he practices writing every day, he can't improve his writing skill...................................................................
3,Unless this man is a drive ,he can't help you move by car
=>If............................. this man is a driver, he can help you move by car.............................................................
4 Unless you go out more often ,you might fall ill
=>If............................. you don't go out more often, you might fall ill...........................................................
5 if you don't return this book to the library today,you 'll have to pay a fine
=> Unless................. you returns this book to the library, you’ll have to pay a fine..........................................................................
6 Unless he cleaned up the car now ,his book could ask him to do this
=> if............................... he didn't clean up the car now, his boss could ask him to do this............................................................
7 Unless they were absent now ,they would meet the haedmaster
=> if..................................... they were not absent now, they would meet the headmaster.............................................................
8 if I didn't know the number ,I would not ring her up
=>Unless.......................... I knew the number, I would not ring her up.................................................................
9 If my sister didn't have a terrible headache she wouldn't be absent from her class
=>Unless..................... my sister had a terrible headache she wouldn’t be absent from her class...............................................................................
10 If Peter didn't study hard ,he could not get good marks
=> Unless.......................... Peter studied hard, he could not get good marks..................................................................
I. Rewrite sentences so that the meaning stay the same .
1. We don't have a garden, so we don't grow our own vegetables
If we had a garden, we would grow our own vegetables
2. He doesn't give yu goodadvice because he isn't your true friend.
If you were his true friend, you would be given good advice
3. We come late because the rain is so heavy
If the rain weren't so heavy, we wouldn't come late
4. You don't get better marks becaise you don't study harder.
If you studied harder, you would get better marks
5. She is very busy so she can't go out tonight
If she weren't busy, she would go out tonight
6. I don't know anything about her background, so I can't tell you.
If I knew something about her background, I would tell you
7. I wasn't hungry so I didn't feel like eating.
If I had been hungry, I would have felt like eating
8.She's so shy, that why she doesn't have many friends.
If she weren't shy, she would have many friends
9. I remembered Susan's birthday only because you reminded me about it.
If you had reminded me about Susan's birthday, I would have remembered
10. The car in front stopped so suddenly, so I crashedinto its back.
If the car in front hadn't stopped so suddenly, I wouldn't have crashed into its back
11. They painted the wall brown, that's why the houselooked very dark.
If they hadn't painted the wall brown, the house wouldn't have looked very dark
Thanks ban nha! Yeu ban nhieu
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