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1.Pollution (increase) will increase if we (use) use more oil and coal
2 The climate (change) will change if more trees (die) die.
3.If we (try) try to control pollution, it (be) will be expensive
5.If we (not control ) don't control pollution soon, it (be) will be too late.
6.If you need any more money i will lend you some.(you some)
7.You can go if you want to.
8. If the weather if fine tomorrow we will go for a picnic
9. Just ask me if you need any help
10. If anyone phones for me while i am out tell them i'll be back at 4 o'clock
11. go to bed now if you are tired
II. Put the verbs in breakets in the correct form, using the conditonal type 2 or type 3.
(Viết hình thức thích hợp của động từ trong ngoặc, dùng câu điều kiện loại 2 hoặc loại 3)
1. He ___would have gone___(go) to study abroad if his family had had enough money→→Type_3_.
2. If ___hadn't had___(not have) a terrible headache, I ___would have finished___(finish) the report yesterday→→Type_3_.
3. If I __had____(have) the choice, I would live by the sea→→Type_2_.
4. If you __had taken____(take) an aspirin, your pain would have disappeared→→Type_3_.
5. If the dress weren't so expensive, she ___would buy___(buy) it→→Type_2_.
6. You would need less money if you __lived____(live) in the country→→Type_2_.
7. If he ____hadn't given__(not give) me a lift, I'd have been late for the interview→→Type_3_.
8. Our neighbors ____would have been__(be) very disappointed if we hadn't come to their party→→Type_3_.
9. The soup would taste better if it __weren't____(not be) so salty→→Type_2_.
10. If I had known you were in trouble, I ___would have helped___(help) you→→Type_3_.
II. Put the verbs in breakets in the correct form, using the conditonal type 2 or type 3.
(Viết hình thức thích hợp của động từ trong ngoặc, dùng câu điều kiện loại 2 hoặc loại 3)
1. He __would have gone____(go) to study abroad if his family had had enough money→→Type_3_.
2. If ____hadn't had__(not have) a terrible headache, I ___would have finished___(finish) the report yesterday→→Type_3_.
3. If I ___had___(have) the choice, I would live by the sea→→Type_2_.
4. If you ____had taken__(take) an aspirin, your pain would have disappeared→→Type_3_.
5. If the dress weren't so expensive, she ___would buy___(buy) it→→Type_2_.
6. You would need less money if you __lived____(live) in the country→→Type_2_.
7. If he ___hadn't given___(not give) me a lift, I'd have been late for the interview→→Type_3_.
8. Our neighbors ___would have been___(be) very disappointed if we hadn't come to their party→→Type_3_.
9. The soup would taste better if it ___weren't ___(not be) so salty→→Type_2_.
10. If I had known you were in trouble, I ___would have helped___(help) you→→Type_3_.
1. You (be)will be late for school if you (not go)don't go now
2. I( help)will help you with the homework if i (be)am free
3. There (be)will be big floods every year if we (cut)cut down too many trees in the forests
4. If we (not stop)don't stop littering, the environment (become)will become more and more polluted
5. She (pay)will pay 50,000 dong if she (use)uses 2 energy-saving bulbs
6. If i (see)see him, i (give)will give him a lift
7. The table (will collapse)will collapse if you (stand)stand on it
8. If he (eat)eats all that, he (be)will be ill
9. What (happen)happen if the pollution (go)goes on?
10. If the work (not finish)doesn't finish on time, we (fire)will fire you
11. If we (not stop)don't stop smoking, you (die)will die soon
12. The electricity will be cut off if you (not pay)don't pay the bill within 2 days
13. If it ( not rain)won't rain tomorrow, we (come)will come to visit them
1. If it (rain) , we (change) our plan .
=> rains, will change
2. The air (be) cleaner if they (go) to work by bike .
...................will be, go...........................................
3. If pollution (increase) , more and more trees (die ) .
..............increases, will die......................................
4. If she ( work ) harder , things (go) well .
..........works, will go....
5.If you (not do) your homework , I (not let ) you watch TV . .........don't do, won't let....
6. We (save) a lot of paper if we (use) tree leaves to wrap food .
......will save, use..............
7. Alex (be) late if he ( not hurry) up .
........will be, doesn't hurry.....
8. If we (not lend ) them our tools , they (work) with their hands .
...........don't lend, will work......
9. How long it (take) if we (get) there by ship ?
............will it take, get.......
10. How we (get) there if the train (be) delayed ?
............................will we get, is..............................
11.I (go) to university if I (be) awarded the scholarship .
.............will go, am...........
Bạnhãyviếtlạicáccâusau, và chia cácđộngtừtrongngoặctheothìđúng: present simple hoặc will/ won't.
a. If we (keep on)…keep on…..using more and more motor vehicles, we (run out)…will run out……… of oil.
b. If we (run out)…run out……… of oil, we (need)………will need……… other kind of energy.
c. If we (use)……use……. more oil and coal, pollution (increase)……will increase……..
d. If pollution (increase)……increases…………, more and more trees…will die…………. (die).
e. If more and more trees (die)…die………, the climate….will change. ….(change).
f. If the climate (change)……changes…, we (meet)……will meet…….with natural disasters.
g. If we (try)…try…..to control pollution, it (be)…will be……….. very expensive.
h. But if we (not control)……don't control………..pollution, it (be)……will be……… too late.
III. Finish the second sentence so that it has a similar meaning to first one.
(Hoàn thành câu thứ hai để nó có nghĩa tương tự như câu thứ nhất)
1. I don't know anything about her background, so I can't tell you.
→→ If I knew something about her background , I could tell you
2. I wasn't hungry, so I didn't feel like eating.
→→ If I had been hungry , I would have felt like eating
3. She's too shy; that's why she doesn't have many friends.
→→ If she she weren't too shy , she would have many friends
4. They were able to buy the house only because their parents lent them the money.
→→ If their parents hadn't lent them the money , they would have been able to buy the house
5. People use so many cars in the city; that's why there's so much pollution.
→→ If people didn't use so many cars in the city , there wouldn't be so much pollution
6. I remembered Susan's birthday only because you reminded me about it.
→→ If you hadn't reminded me about Susan's birthday , I wouldn't have remembered it
7. The car in front stopped so suddenly, so I crashed into its back.
→ → If the car in front hadn't stopped so suddenly , I wouldn't have crashed into its back
1. 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
2. I wasn't hungry so I didn't feel like eating.
If I had been hungry, I would have felt like eating
3.She's so shy, that why she doesn't have many friends.
If she weren't shy, she would have many friends
4. They were able to buy the house only because their parents lent them the money.
→ If their parents lend them the money, they will buy a house
5. People use so many cars in the city; that's why there's so much pollution.
→ If people use a lot of cars in the city, there will be a lot of pollution.
6. 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
7 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
1. It's a pity I can't go to the beach today, but I have to stay at home and study.
could I wish i could go to the beach today, but I have to stay at home and study.
2. If it weren't raining, we could go on a picnic.
stop I wish it were sunning so we could go on a picnic.
3. It's a shame we didn't see the exhibition.
had We wish .we had see the exhibition.
4. George needs a new car but he can't afford to buy one.
could George wishes he could bought.. a new car.
5. It's a pity Jenny wasn't invited to the party.
been Jenny wishes she had been invited to the party.
6. I've been offered a job in Paris but I can't speak French.
speak I wish i spoke french. because I've been offered a job in Paris.
7. George never arrives on time when we arrange to go out.
only If george only arrives on time when we arrange to go out.
8. I would really like to be lying on the beach now.
were I wish i were lying on the beach now.
9. Your mother's worried about you. You should phone her.
better You better your mother as she's worried about you.
10. Will you ever think about finding a flat of your own?
time It'stime about finding a flat of your own.
11. Look at how he lives - he thinks he is a millionaire.
if He lives .if he is a miliionaire.
12. This summer, I would rather book a holiday in Monaco than Lyons.
prefer This summer, I prefer book a holiday in Monaco rather than Lyons.
13. Why didn't tell me yourself that you were leaving?
rather I'd .rather tell . me yourself that you were leaving.
14. She wants to be more like her mother.
wishes She .wishes she were more like her mother.
15. I should have taken that job in Canada last year.
only If i only took. that job in Canada last year.
16. You should have checked the oil before you set out.
better It 's.better you had checked the oil before you set out.
1. It's a pity I can't go to the beach today, but I have to stay at home and study.
could I wish i could go to the beach today, but I have to stay at home and study.
2. If it weren't raining, we could go on a picnic.
stop I wish it had stopped so we could go on a picnic.
3. It's a shame we didn't see the exhibition.
had We wish we had seen the exhibition.
4. George needs a new car but he can't afford to buy one.
could George wishes he could afford to buy a new car.
5. It's a pity Jenny wasn't invited to the party.
been Jenny wishes she had been invited to the party.
6. I've been offered a job in Paris but I can't speak French.
speak I wish i could speak French because I've been offered a job in Paris.
7. George never arrives on time when we arrange to go out.
only If only George arrives on time when we arrange to go out.
8. I would really like to be lying on the beach now.
were I wish i were on the beach now.
9. Your mother's worried about you. You should phone her.
better You had better phone your mother your mother as she's worried about you.
10. Will you ever think about finding a flat of your own?
time It's time about finding a flat of your own.
11. Look at how he lives - he thinks he is a millionaire.
if He lives if he were a miliionaire.
12. This summer, I would rather book a holiday in Monaco than Lyons.
prefer This summer, i prefer book a holiday in Monaco rather than Lyons.
13. Why didn't tell me yourself that you were leaving?
rather I'd not rather tell me yourself that you were leaving.
14. She wants to be more like her mother.
wishes She wishes she were more like her mother.
15. I should have taken that job in Canada last year.
only If only i shouldn't take that job in Canada last year.
16. You should have checked the oil before you set out.
better It is better that you had checked the oil before you set out.
Chúc bn học tốt nhé! Mk cũng ko chắc lắm 
1, We got lost because we didn't have a map
→→If we......................had had a map, we wouldn't have lost..................
2, I would prefer you to deliver the sofa on Friday
→→ I would rather .............you delivered the sofa on Friday.................
3, The bridge was so low that the bus couldn't go under it
→→It was ................such a low bridge that the bus couldn't go under it.....................
4, That was a silly thing to say
→→What ...............a silly thing to say !..........................
5,We've run out of tea
→→ There ........is no tea left...................
6, I last saw him when I was a student
→→Ii haven't ..........seen him since i was a student.................
7, Susan was to excited to sleep
→→Susan was ............excited about sleeping................
8, Robert has not had a job for two years
→→Robert has been ...............unemployed for two years..................
9, She will complete the work only when she is paid ectra
→→She will not ...........complete the work without being paid ectra................
10, I think you should spend more time on your written work . That's what I'd do
→→ If .....................i were you, i would spend more time on my written work....................
1, We got lost because we didn't have a map
→→If we.......had had a map, we wouldn't have got lost.................................
2, I would prefer you to deliver the sofa on Friday
→→ I would rather .........you delivered the sofa on Friday.....................
3, The bridge was so low that the bus couldn't go under it
→→It was ........such a low bridge that the bus couldn't go under it.............................
4, That was a silly thing to say
→→What .........a silly thing to say !................................
5,We've run out of tea
→→ There .........isn't any tea left...................
6, I last saw him when I was a student
→→Ii haven't .......seen him since I wasn't a student....................
7, Susan was to excited to sleep
→→Susan was ......too eager to sleep ......................
8, Robert has not had a job for two years
→→Robert has been .....unemployed for 2 years............................
9, She will complete the work only when she is paid ectra
→→She will not .......complete the work until she is paid extra....................
10, I think you should spend more time on your written work . That's what I'd do
→→ If ...............I were you, I would spend more time on my written work...........................
I. There is a mistake in each of these sentences . Underline the mistake and then correct it
1. If we run out of oil , we need other kind of energy => will need
2. If pollution will increase , more and more trees will die => 0
3. You shouldn't eat quick , it's not good for your health=> quickly
4. Hoa is studying hardly for her exams => hard
5. I usually feel worriedly before an exam =. worried
6. They are certain that they can help us cleaning up the beach => certainly
7. I am disappointed that they did not tell us how doing it =. to do
8. He couldn't meet you because of he was busy => 0
9. She went to bed early because her sickness => because of
10. the pupils were divided in small groups =. into
1 knew
2 wouldn't buy
3 would help
4 lived
5 weren't - wouldn't be
6 ran out - would need
7 will increase - use
8 try - won't be
9 will change - die
10 had known - would have gone
11 he had missed - he would have been
12 had been
13 It would have been - I had walked