Unit 7: Pollution

1. A. person B. father C. teacher D. enjoy

2. A. prefer B. enjoy C. mother D. agree

4. A. pollution B. visit C. listen D. open

5. A. depend B. advise C. affect D. listen

6. A. affect B. father C. teacher D. picture

7. A. prefer B. enjoy C. mother D. affect

8. A. affect B. happen C. pollution D. fancy

9. A. pollution B. picture C. village D. factory

11. A. artistic B. historic C. dramatic D. scientific

12. A. medical B. national C. chemical D. historical

13. A. athletic B. dramatic C. scientific D. heroic

14. A. medical B. hospital C. politic D. electric

15. A. chemical B. physical C. environmental D. medical

16. A. athletic B. historic C. dramatic D. scientific

17. A. medical B. national C. chemical D. informal

18. A. athletic B. dramatic C. scientific D. heroic

19. A. medical B. hospital C. politic D. electric

Câu 3, 10, 20 sai hay sao á bạn.

1. A. person B. father C. teacher D. enjoy

2. A. prefer B. enjoy C. mother D. agree

4. A. pollution B. visit C. listen D. open

5. A. depend B. advise C. affect D. listen

6. A. affect B. father C. teacher D. picture

7. A. prefer B. enjoy C. mother D. affect

8. A. affect B. happen C. pollution D. fancy

9. A. pollution B. picture C. village D. factory

11. A. artistic B. historic C. dramatic D. scientific

12. A. medical B. national C. chemical D. historical

13. A. athletic B. dramatic C. scientific D. heroic

14. A. medical B. hospital C. politic D. electric

15. A. chemical B. physical C. environmental D. medical

16. A. athletic B. historic C. dramatic D. scientific

17. A. medical B. national C. chemical D. informal

18. A. athletic B. dramatic C. scientific D. heroic

19. A. medical B. hospital C. politic D. electric

còn câu 3,10 ,20 mình không biết làm á

Thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature, the sudden change in temperature decreasesoxygen supply and affects ecosystem composition. Fish and other organisms adapted to particular temperature range can be killed by an abrupt change in water temperature (either a rapid increase or decrease) known as "thermal shock."

Urban runoff—stormwater discharged to surface waters from roads and parking lots—can also be a source of elevated water temperatures.

When thermal pollution happens, the water temperature in streams, rivers, lakes, or oceans changes. It is one of the most serious types of pollution.

Thermal pollution can have many different causes. Power station are one factor. They use water in the nearby lakes or rivers to cool their equipment, which heats up the water. Then they dump the hot water back into its source. Thermal pollution may also happen due to the discharge of cold water from reservoirs into warm rivers.

Thermal pollution can have dramatic effects. Most aquatic creatures need a certain temperature to survive. Warmer water has less oxygen in it, and this can harm fish populations. Besides, warmer water can cause harmful algal blooms. This can change the colour of the water like in the first picture and, more seriously, the algea poisons the fish.

1. Water _______ in the lake has made the fish die.

A. pollution B. pollute C. polluted D. polluting

2. Water pollution is the ______ in the lake has made the fish die.

A. contaminating C. contaminated

B. contaminate D. contamination

Chúc bạn học tốt!

1-A

2-D

GOOD LUCK

1A

2D

Hoàn thành câu với dạng đúng của từ trong ngoặc:

1.Many fish in the lake near my house have died because of the polluted water. (pollute)

2.My friend and I are going to give a presentation about our environmental problems. (environment)

3.Too much use of electric lights in cities may cause light pollution. (electricity)

4.Nowadays, people use too much herbicide so many animals don't have enough food and they become sick . (sickness)

5. Oil spills from ships in oceans and rivers lead to the death of many aquatic animals and plants. (die)

I. Fill in each blank with the correct preposition.

1. Thousands of people were exposed..to. radiation when the nuclear plant exploded.

2. Waste water from many factories which is dumped.into.. water bodies directly causes water pollution.

3. Land pollution is responsible for damage done .to.. natural habitat of animals.

4. Americans throw..away. twenty-eight and a half million tons of plastic in landfills every year.

5. Scientist have come up ..with. new ways of saving energy.

II. Circle the mistake in each sentence, and then correct it.

1. Long exposure to loud noise results->results in permanent hearing loss.

2. The misuse of resources and improper dumping of waste make->cause land pollution.

3. The soil becomes contaminated because->because of the use of so many pesticides and other farming chemicals.

4. Oil slicks from boats or ships pollute the sea, because->therefore many fish and sea birds die.

5. In many developing->developed countries, water pollution is usually a leading cause of death if people drink from polluted water sources.

6. We should plant trees in our neighbourhood so->because trees help cool the planet.

III

The major cause of water pollution in Vietnam is the weakness industrial wastewater management. Many factories..use.. fresh water to carry away waste..from. their plants into canal rivers and lakes. Most of them do not have..any.. wastewater treatment system. Industrial was water is directly discharged into canals, lakes, ponds and rivers, causing serious.pollution. of surface water. For example,..in. 2008, Vedan factory, a sodium glutamate plant, release their untreated industrial wastewater into the Thi Vai River and.caused.. tons of fish and ducks the river to die.

Another cause of water pollution in Vietnam is the lack of awareness among citizens. Every day people genera a lot of..trash. , and they throw it directly into canals, rivers and ponds. They.collect.. water from these sources to do their laundry, wash dishes, bathe and then they throw the dirty water that cointain detergent and shampoo directly into them.

CONDITIONAL SENTENCES

I. Rewrite the following sentences, using an "if" construction.

1. The pupils will learn hard. They will pass the coming exams

If the pupils learn hard, they will pass the coming exams.

2. He doesn't take any exercise; that's why is so unhealthy.

If he took exercises , he wouldn't be unhealthy.

3. I didn't know your number so I didn't ring.

If i had known your number, I would have phoned.

4. I have no ladder so I can't get over the wall.

If I had a ladder, I could get over the wall.

5. My friends will have time. They will come visit me.

If my friends have time , they will come visit me.

6. We haven't got central heating, so the house is rather cold.

If we had got central heating , the house wouldn't be rather cold.

7. We don't go by air because We didn't have enough money.

If we had had enough money, we would go by air.

8. I am fat; that's why I can't get through the bathroom window.

If I wasn't fat, I could get through the bathroom window.

9. He ​wasn't looking where he was going. That's why he was run over.

If he hadn't been looking where he was going , he wouldn't have been run over.

10. The bus didn't stop because you didn't put your hand up.

If you had put your hand up, the bus would have stopped.