7. Put the verbs in brackets into the correct form of conditional sentence type 1:

1. If people (pollute) _______the environment, a lot of animals (die) _____.

2. If water (consist)______ germs, people (get)_____ ill.

3. If the poles (melt)_____, huge landmasses (be)____ underwater.

4. Many precious animals (disappear)_____, if people (cut down)______trees.

5. If nuclear waste (throw)______ away, it (be)______ very dangerous.

6. If the emission of CO₂ (continue)_____ at high rate, the climate (destroy)________.

7. We (save)_____ the trees if we (save) ______ paper.

8. If schools (teach)______ about environmental problems, all students (know)_____ how to protect the environment.

9. if more people (travel)_______ by bike or bus, we (not have)____ traffic jam.

10. if the government (fine)_______ heavily to the factories, they (not dump)____ sewage into the ocean.

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

2. Factories (not dump)… ………………. waste into the rivers if the government fines them heavy.

3. If people travel to work by bus, there (be) ………………….…….. fewer cars fumes.

4. We will save thousands of trees if we (not waste)……………………….. paper.

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

6. If you (be)……………..…. the president, what ………………..you (do)……………….?

7. They get sick so often. If they (exercise)…………… more, they (be)……….. healthier.

8. If I (have)……………… one million US dollars, I (build)…………….. more parks in our city.

9. Ngoc’s mother is unhappy. If Ngoc (tidy)……………..……..……….. her room every day, her mother

(not be)……………………… so upset.

10. There isn’t a garden at our house. If there (be)……….., we (grow)……………….…..vegetables.

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

2. Factories (not dump) ______________waste into rivers if the government fine them heavily.

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

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

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

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

7.If we recycle more, we (help) ________________ the Earth.

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

9. If he (study) ________________  harder, he can pass an exam.

10. She may be late if she (not hurry) ________________.

11.If you study harder, you (pass) ________________  the exam.

12. If you are kind to me, I (be) _______________  good to you.

Question IV.Combine 

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

2. Factories (not dump) ______________waste into rivers if the government fine them heavily.

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

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

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

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

7.If we recycle more, we (help) ________________ the Earth.

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

9. If he (study) ________________  harder, he can pass an exam.

10. She may be late if she (not hurry) ________________.

11.If you study harder, you (pass) ________________  the exam.

12. If you are kind to me, I (be) _______________  good to you.

I . put the verbs in brackets into the correct form

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

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

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

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

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

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

The environment is seriously polluted today. To protect the environment, we should reduce the plastic bags, bottles and cans. We should put the garbage in a certain place or in the forest. That means we can reduce the soil pollution. It would be better if we go to work or school by bike or walk, we can save energy and keep the air cleaner. Or we can reuse and recycle things. And we should not throw trash into the rivers and lakes to keep the water not polluted. Do these things we will protect the enviroment and we will live healthier life.
1. How is the enviroment today ?
...............................
2. Where should we putthe garbage ?
...............................
3. Why must we save and recycle paper ?
..............................
4. Will we live healthier life if we keep the enviroment clean ?
..............................

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

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

2. Factories (not dump) ______________waste into rivers if the government fines them heavily.

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

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

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

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

7.If we recycle more, we (help) ________________ the Earth.

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

9. We will save thousands of trees if we (not waste) _______________ paper.

10. Factories won’t dump waste into rivers if the government (fine) _______________ them heavily.

11. Our teacher (tell) _______________ us yesterday that he (visit) _______________ England in 1970.

12. Alan (have) _______hardly (prepare) ________for dinner when her husband (go) _______home

13. No sooner (have) ___________I (watch) _______TV than the phone (ring) __________

14. Before I (watch) __________ TV, I (do) _____________my homework.

15. After I (wash) _____________my clothes, I (sleep) _______________

1. If we (have) ____ a yacht, we (sail) ____ the seven seas.
2. If he (have) ____ more time, he (learn) ____ karate.
3. If they (tell) ____ their father, he (be) ____ very angry.
4. She (spend) ____ a year in the USA if it (be) ____ easier to get a green card.
5. If I (live) ____ on a lonely island, I (run) ____ around naked all day.
6. We (help) ____ you if we (know) ____ how.
7. My brother (buy) ____ a sports car if he (have) ____ the money.
8. If I (feel) ____ better, I (go) ____ to the cinema with you.
9. If you (go) ____ by bike more often, you (be / not) so flabby.
10. She (not/talk) ____ to you if she (be) ____ mad at you.

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