I . put the verbs in brackets into the correct form

1. If we ( recycly ) ...recycle......... more , we will help the Earth

2. Factories ( not dump ) ..won't dump........... waste into rivers if the government fine them heavily

3. If people travel to work by bus , there ( he ) .will be............... fewer ear fumes

4. We ( save ) ...will save............ thousands of trees if we don't waste paper

5. If we use water carefully , more people ( have ) ..will have............ fresh water

6. If the factory ( continue ) ...continues.............. dumping poison into the lake all the fish and other aquatic animals will die

(Vừa nãy nhầm)

I . put the verbs in brackets into the correct form

1. If we ( recycly ) ..recycle.......... more , we will help the Earth

2. Factories ( not dump ) ..won't dump........... waste into rivers if the government fine them heavily

3. If people travel to work by bus , there ( he ) ...would be............. fewer ear fumes

4. We ( save ) ...will save............ thousands of trees if we don't waste paper

5. If we use water carefully , more people ( have ) ..will have............ fresh water

6. If the factory ( continue ) ........continues......... dumping poison into the lake all the fish and other aquatic animals will die

Question II. Put the verbs in brackets into the correct form.

1.If we (recycle) __recycle___ more, we will help the Earth.

2. Factories (not dump) ____won't dump_______waste into rivers if the government fine them heavily.

3. If people travel to work by bus, there (be) ___will be _____fewer car fumes.

4. We (save) ____will save_______thousands of trees if we don’t waste paper.

5. If we use water carefully, more people (have) _____will have______fresh water.

6.If you (be) ______were_______ the president, what would you do to help the environment ?

7.They get sick so often.If they exercised more, they (be) ______would be_____ heathier. 8.If I (have) _____had____ one million US dollars , I would build more parks in our city.

9.Quan’s mother is unhappy.If Quan tided his room every day, his mother (not be) __wouldn't be__so upset.

10.There isn’t a garden at house .If there were, we (grow) ___would grow__ vegetables.

III. Complete the sentences with the correct form of the verbs in brackets.

1) If we DON'T RECYCLE ( not recycle) paper now, we'll need to cut down more trees in the future.

2) If the local people HAD (have)

fresh water, they wouldn't have to use polluted water.

3) What WOULD HAPPEN ( happen) if radioactive material was not handled properly?

4) If we recycle more household waste, there WILL BE ( be) less damage to the environment.

5) If we DIDN'T UNDERSTAND ( not understand) environmental ptoblems, we would not be able to do anything about them.

6) If the polar ice-caps melted completely, Sea levels worldwide WOULD RISE ( rise) about 60 metres.

7) The amount of plastic in the ocean WILL INCREASE ( increase) if we DON'T TAKE ( not take) action now.

8) These fish WOULDN'T DIE ( not die) if the factory DIDN'T DUMP ( not dump) its toxic waste into the river.

9) There WON'T BE ( not be) enough oxygen if we DON'T PROTECT ( not protect) the rain forests.

10) If I WERE ( be) the President, I WOULD BAN ( ban) billboards in cities in order to reduce visual pollution.

Đáp án: will have (câu điều kiện loại 1)

1. will crack

2. is

3. will help

4. will disappear 

5. won't go

6. is

7. provoke

8. won't be

9. will stay

10. will be

xin vía học giỏi

Question I: put the verbs in brackets into the correct form.( câu điều kiện loại 1)

1. If we( recycle).......recycle..... more, we help the earth.

2. factories( not dump).......won't dump..........waster into rivers if the government fine them heavily.

3. if people travel to work by bus, there( be)..will be.... fewer car fumes.

4. we( save) ...will save.......thousands of trees if we don't waste paper.

6. if the factory( continue)........continues.... dumping poison into the lake, all the fish and other aquatic animals will die.

7. if we recycle mỏe, we( help).........will help............. the earth.

8. if people ( travel)...........travel........ to work by bus, there will be fewer car fumes.

9. we save tthusands of trees if we( not waste).................don't waste paper.

10. factories don't dump waste into rivers if the govenment( fine).......fine.......... them heavily.

Question II. put the verbs in brackets into the correct form.

1. if he( study)......studies........ harder, he can passan exam.

3. if you study harder, you(pass)......will pass............ the exam.

4. if you are kind to me, I(be)......will be............good to you.

5, if he( give)............gives............up smoking,as his doctor orders, he will be soon well again.

6. you( not pass)......will not pass........your driving test unless you drive more carefully.

7. he'll be ill if he( not stop).......does not stop...........worrying so much.

8. we'll go to the beach tomorrow if it( be)......is................... nice.

Question III. put the verbs in brackets into the correct form.( câu điều kiện loại 2)

1. if I were you, I(look)....would look.............. for a new place to live.

3. if there were fewer cars on the road, there(be).....would be................ less pollution.

4. if people really cared about the environment, they( not dump)...........wouldn't dump.......waste into the lake.

5. if there was no fresh water in the world, what(happen).....would happen........

6. if you (be)..........were.......the president, what would you do to help the environment?

1. If we( recycle).......recycle..... more, we help the earth.

2. factories( not dump).......won't dump..........waster into rivers if the government fine them heavily.

3. if people travel to work by bus, there( be)..will be.... fewer car fumes.

4. we( save) ...will save.......thousands of trees if we don't waste paper.

5. if we use water carefully, more people( have)..will have..fresh water.

6. if the factory( continue)........continues.... dumping poison into the lake, all the fish and other aquatic animals will die.

7. if we recycle mỏe, we( help).........will help............. the earth.

8. if people ( travel)...........travel........ to work by bus, there will be fewer car fumes.

9. we save tthusands of trees if we( not waste).................don't waste paper.

10. factories don't dump waste into rivers if the govenment( fine).......fine.......... them heavily.

Question II. put the verbs in brackets into the correct form.

1. if he( study)......studies........ harder, he can passan exam.

2. she may be late if she( not hurry)....does not hurry..............

3. if you study harder, you(pass)......will pass............ the exam.

4. if you are kind to me, I(be)......will be............good to you.

5, if he( give)............gives............up smoking,as his doctor orders, he will be soon well again.

6. you( not pass)......will not pass........your driving test unless you drive more carefully.

7. he'll be ill if he( not stop).......does not stop...........worrying so much.

8. we'll go to the beach tomorrow if it( be)......is................... nice.

Question III. put the verbs in brackets into the correct form.( câu điều kiện loại 2)

1. if I were you, I(look)....would look.............. for a new place to live.

2. if Lan wasn't ill, she( join)........would join.. out tree plating activity.

3. if there were fewer cars on the road, there(be).....would be................ less pollution.

4. if people really cared about the environment, they( not dump)...........wouldn't dump.......waste into the lake.

5. if there was no fresh water in the world, what(happen).....would happen........

6. if you (be)..........were.......the president, what would you do to help the environment?

1. will have

2. was made

3. was waiting

4. to repair

5. wasn't

4-repair