UNIT 7: POLLUTION

I. Choose the words that have the different stress from the others.
1. A. definition B. electricity C.contaminate D. radiation
2. A.dramatic B. overhead C. centuryD. groundwater
3. A. thermal B.beneathC. rubbishD. earplug
4. A.affect B. billboard C. visualD. substance
5. A. aquatic B. behavior C. pollution D.permanent
II. Choose the correct answers.
1. Household and farming chemicals ……………. air pollution.
A. lead in B. result toC. cause D. causes
2. Thermalpollution………..the temperature of a river go up.
A. makesB. cause C. lead to D. result in
3. Radioactive pollution ……………… skin disorders.
A. makes B. causes C. leads D. results
4. Forest fires…………. the pollution of the air.
A. results in B. causes C. leads to D. lead to
5. What …….. the death of so many fish in the river.
A. made B. has cause C. led in D. has resulted
6. The air has been polluted ………. emissions from car engines.
A. since B. becauseC. because of D. due of
7. Forest fires happen too often, ………the air is polluted.
A. soB. because C. since D. due to
8. Skin disorders happens ……………radioactive pollution.
A. because B. due to C. since D. so
9. If I……….. the same problem you had as a child, I might not have succeeded in life as well as you have.
A. have B. would have C. had had D. should have
10. If someone …………….. into the store, smile and say, “May I help you?”
A. comes B. came C. come D. should come
11. If I didn’t work for an accounting firm, I ………….. in a bank now.
A. work B. will work C. have worked D. would work
12. If she ………… him, she would be very happy.
A. would meet B. will meetC. met D. should meet
13. If I had enough money, I …………. abroad to improve my English.
A. will go B. would go C. went D. should have go to
14. The bench would collapse if they ………………. on it.
A. stood B. stand C. standing D. stands
15. If it …………….. convenient, let’s go out for a drink tonight.
A. beB. is C. wasD. were
III. Write thecorrect forms of the verbs in brackets.
1. If you ( go) ……….. away, please write to me.
2. If he (eat) ........… another cake, he will be sick.
3. I (not do) …….………that if I (be) …….……….you.
4. If he (take) ……….………. my advice, everything can go well.
5. He never does homework.If he (do) …….is homework, he (not worry) ……...about his exam.
6. What you (do) ……………… if she refuses your invitation?
7. If today (be) ……………..Sunday, we (go) …..…………. to the beach.
8. Unless they (pass) ….……. their examinations, they would join the army.
9. You (be) ………… ill if you drink that water.
10. I could understand the French teacher if she (speak) ………… more slowly.
IV. Complete the sentences, using the correct form of the words in brackets.
1. The soil becomes ……….. because of the use of so many pesticides and fertilizers. (contaminate)
2. …………… waste spills can contaminate groundwater. (industry)
3. In many developing countries, water pollution is usually a leading cause of …………. (die)
4. …………… elements have been found in both ground and underground water sourses. (pollute)
5. Fish and many other animals are killed by ………………..in their habitat. (pollute)
6. Don’t use …………….. chemicals. They’re harmful to our health. (poison)
7. Water pollution causes a lot of fish to ……………… (dead)
8. The polluted air …………………… our health badly. ( damage)
9. The serious ………………… has left the river with very few fish. (contaminate)
10. The acid rain has caused great …………………… to the environment. (damage)
V. Combine each pair of sentences, using the words/ phrases in brackets. Don’t change the given words/ phrases.
Ex: 0. Noise pollution happens. There is a change in animal’s living pattern. (causes)
- Noise pollution causes a change in animal’s living pattern.
1. Radioactive pollution is very dangerous. It can cause abnormal growth. (since