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writing:
1. don't go out in the rain because you'll get wet.
=> if ...you go.................................................................. in the rain, you'll get wet. (go)
2. When she invites me, it is possible that I will go.
=> ...If she invites..........................me, I'll go (IF)
3. Children don't have to go to school on stormy days.
=> If it is stormy, children ......will have........................................................ go to school. (have)
4. you should decrease your use of water, or you will have to pay a lot.
=> If you ..........reduce.....................................use of water, you will have to pay a lot. ( Reduce)
5.These trees need water or they will die.
If you ...........water............................... these trees, thuy will die. (water)
writing:
1. don't go out in the rain because you'll get wet.
=> if you go in the rain, you'll get wet. (go)
2. When she invites me, it is possible that I will go.
=> If she invites me, I'll go (IF)
3. Children don't have to go to school on stormy days.
=> If it is stormy, children won't have to go to school. (have)
4. you should decrease your use of water, or you will have to pay a lot.=> If you reduce your use of water, you will have to pay a lot. ( Reduce)
5.These trees need water or they will die.
If you don't water these trees, they will die. (water)
1 Give correct tences of the verbs:
1 if pollution increases, more and more trees (die).....will die.......................
2wwe will go for a picnic if the weather (be)......is...........fine tomorrow.
3 Unlesss it (rain)......rains.............they will go shopping.
4 He will be late if he (not/hurry).............don't hurry...............
5 If we (cycle)....cycle......more, there will be less air polllution.
6 We (do).........will do .........this for you if you want.
7 if he (miss)........misses........the bus, he (take) .......will take.............taxi.
8 Unless she (eat).....doesn't eat......fruit,she (get).will get ...a cold.
9 if your father (not/ stop).......doesn't stop.......smoking, he (have)........will have...........poblems later.
10 She (go)...........will go.......to the party with you if you (invite)......invite.....her.
11 You ( be).......will be...........on time if you (run).....run......
12 They (not/see).........won't see...........that flim unless they (have)..........have....time.
13 if you (rent)..........rent.......a DvD, I (come)......will come.........over to your house.
14 if you (give)..give...me some money, i (buy)......will buy.....some chocolate for you.
15 (he/have).....Will he have......an accident if he (drive)....drives.........so fast?
16 (you/be)....Will you be........at home soon if you (leave).......leave........now?
1 Give correct tences of the verbs:
1 if pollution increases, more and more trees (die)will die
2 we will go for a picnic if the weather (be)is fine tomorrow.
3 Unlesss it (rain) rains they will go shopping.
4 He will be late if he (not/hurry) don't hurry
5 If we (cycle) cycle more, there will be less air polllution.
6 We (do) will do this for you if you want.
7 if he (miss) misses the bus, he (take) will take taxi.
8 Unless she (eat) doesn't eat fruit,she (get)will get a cold.
9 if your father (not/ stop) doesn't stop smoking, he (have) will have poblems later.
10 She (go) will go to the party with you if you (invite) invite her.
11 You ( be)will be on time if you (run) run
12 They (not/see)won't see that firm unless they (have) have time.
13 if you (rent) rent a DvD, I (come)will come over to your house.
14 if you (give) give me some money, i (buy) will buy some chocolate for you.
15 (he/have)Will he have an accident if he (drive) drives so fast?
16 (you/be)Will you be at home soon if you (leave) leave now?
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ...mustn't... turn right.
2. The sign says ''No smoking''. You ...mustn't... smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ..don't have to.... tell me. I already know.
5. The big boss will be at the meeting. You ...mustn't... be late.
6. You can help me if you want to but you ....don't have to..
7. You ...mustn't... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ...don't have... to wear a tie in this company but they prefer it if you do.
10. You ....mustn't.. criticize David. He's doing the best he can.
11. You ..mustn't.... drive there. You can take the train.
12. You ....mustn't.. play tennsis to enjoy watching tennis matches.
13. You ..don't have to.... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ...mustn't... tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ...mustn't... bring any food or drink in here.
18. You ...don't have to... come at 8:00. Come at whatever time suits you.
19. You ....mustn't.. smoke in this area. It is forbidden.
20. I ...don't have... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...mustn't... wear jeans.
22. You ...mustn't... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ...mustn't... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You .mustn't..... enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ..needn't.... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...needn't... hungry. We have plenty of time.
5. You ....mustn't.. smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ....needn't.. sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ..mustn't.... show this e-mail to anyone else. I'll trust you.
10. The students ...mustn't... forget their home work.
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have to'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ..mustn't.... turn right.
2. The sign says ''No smoking''. You ....mustn't.. smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ...don't have to... tell me. I already know.
5. The big boss will be at the meeting. You ...don't have to... be late.
6. You can help me if you want to but you .don't have to.....
7. You .mustn't..... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ..don't have to.... to wear a tie in this company but they prefer it if you do.
10. You .don't have to.... criticize David. He's doing the best he can.
11. You ...mustn't... drive there. You can take the train.
12. You ...don't have to... play tennsis to enjoy watching tennis matches.
13. You ...don't have to... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ....don't have to.. tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ....don't have to.. bring any food or drink in here.
18. You ....don't have to.. come at 8:00. Come at whatever time suits you.
19. You ..mustn't.... smoke in this area. It is forbidden.
20. I ...don't have to... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...don't have to... wear jeans.
22. You .don't have to..... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ..mustn't.... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You ....don't have to.. enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ...mustn't... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...mustn't... hungry. We have plenty of time.
5. You ...mustn't... smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ..mustn't.... sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ....mustn't.. show this e-mail to anyone else. I'll trust you.
10. The students ..mustn't.... forget their home work.
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.
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 
Rewrite the following sentences:
1/ If there's an emergency, ring this number
-> In case there's an emergency, ring this number
2/ He spends too much money on his clothes
-> If I were him,I wouldn't spend too much money on clothes
3/ Minh is overweight because he eats too much chocolate
-> If Minh didn't eat too much chocolate,he wouldn't be overweight
4/ You should take a map with you because you might get lost in the mountains
-> In case you might get lost in the mountains,You should take a map with you
5/ We won't go on holiday unless we have enough money
-> If we have enough menoy,we will go on holiday
6/ You shouldn't eat too much meat
-> If I were you,I wouldn't eat too much meat
7/ Without her help we would all have died
-> If it hadn't been for her help,we would all have died
8/ It's such a pity your sister can't come as well
-> If only your sister could come as well
9/ Keeping calm is the secret of passing you driving test
-> As long as you keep calm,you will pass your driving test
10/ I'll lend you the money as long as you promise to pay me back
-> On condition that you promise to pay me back,I'll lend you the money
11/ The only thing that prevented the passing of the bill was the death of the Prime Minister
-> but for the death of the Prime Minister,the passing of the bill wouldn't have been prevented
12/ It would have been a superb weekend if it hadn't been for the weather
-> But for the weather, It would have been a superb weekend
1, I (drive)..would drive... to work if i had a car
2.Many people would be out of work if that factory (close)...had closed.. down
3.The police (arrest).would arrest.. him if they catch him
4.If you (not go)..don't go... away i'll send for the police
5.We wouldn't mind having children if we (live)...lived..in the country
6. If you ( not pass)..didn't pass.. the exam, would you take it again?
7. If i had gone to your party last night, i (be).would have be...very tired
1, I (drive)...would have driven.. to work if i had a car
2.Many people would be out of work if that factory (close)...closes .. down
3.The police (arrest).will arrest .. him if they catch him
4.If you (not go)...don't go .. away i'll send for the police
5.We wouldn't mind having children if we (live)..live ...in the country
6. If you ( not pass)...don't pass . the exam, would you take it again?
7. If i had gone to your party last night, i (be)...could have been .very tired
BT1: Match the phrases to from a sentence in the first conditional, and write the answer in each blank A B
1. If we leave now a. it'll bite you
2. If I give you some money b. I'm sure she'll say "yes"
3. If you wear that shirt c. we'll go to the beach
4. If you invite her to the cinema d. will you buy some chocolate for me?
5. If he drives that car fast e. you'll look really good
6. If I phone you at nine f. we'll be home by ten
7. If it's hot tomorrow g. he'll have an accident
8. If you touch that dog h. will you be at home?
1F
2D
3E
4B
5G
6H
7C
8A