what a beatureful world! But…

Unit 10

Pollution

Pollution is one of the greatest problems facing our country today.

Industry should be responsible for some of the pollution.Water pollution is dangerous because polluted drinking water and sea food do great harm to us.

True False

People throughout the world are fighting against pollution.

We may upset the balance of nature by using insecticides to kill insects that attack crops.

In cities of developed countries, fumes from factories are a majorcause of air pollution.

F

F

T

T

TT

listening

Extensive reading

Read the text quickly, then match the main idea of each paragragh :

Para 1

Para 2

Para 3

Para 4

Para 5

Sources of pollution

Water pollution

Air pollution

Food pollution

Measures to control pollution

Extensive reading

Read the text carefully, and then answer the following questions:

1.What is pollution? Pollution means the poisoning of the land, the seas, and the air.

2. Is pollution a serious problem? Why?

Yes. With the development of modern industry and agriculture,

more and more waste is produced. As the air and water become

badly polluted, human beings are in danger. Because people cannot

live without air and water, pollution is one of the greatest problems

we have to solve today.

3.Who are to blame for the pollution that exists? Why?

Industry

• Factory chimneys release dangerous fumes, smoke and dust into the air.

• Some factories pour wastes that contain dangerous chemicals directly into our rivers without being treated.

Cars: Fumes from cars do great harm to the air.

Oil tankers: Oil discharged from tankers by accident or on purpose when its tanks are being cleaned out pollutes the beaches and kills seabirds. (water pollution)

Insecticides:

• Upset the balance of nature by killing the insects, the food supply for birds.

• In some cases, the substances in insecticides may also harm animals that feed on the crops.

意外地 故意地

(air pollution)

(water pollution)

Environmental problems are becoming more and more serious all over the world. For example, cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories. Trees on the hills have been cut down and waste water is being poured continuously into rivers.Furthermore, wherever we go today, we can find rubbish carelessly disposed. Pollution is, in fact, threatening our existence.     The earth is our home and we have the duty to take care of it for ourselves and for our later generations. Fortunately, more and more people have realized these problems. Measures have been taken to cope with these problems by the government. Laws have been passed to stop pollution. I hope the problem will be solved in the near future and our home will become better and better.

Environmental problems are becoming more and more serious all over the world. With the development of industry and agriculture, cars make great noises and give off poisonous gas. Trees on the hills have been cut down, and waste water is being poured continuously into rivers. Furthermore, wherever we go today, we can find rubbish carelessly disposed. The whole ecological balance of the earth is changing. Massive destruction of environment has brought about negative effects and even poses a great threat to man’s existence.     We must face the situation that exists and take actions to solve our environmental problems. For instance, new laws must be passed to place strict control over industrial pollution, the public must receive the education about the hazard of pollution and so on. We hope that all these measures will be effective and bring back a healthful environment.

1. Do you think pollution can be controlled? If you were government officials, what measures would you take to control the pollution?

2. In order to keep our environment clean, what should we do and what should we not do in our daily life?

do’s don’tsuse…plant…pick up …throw …into dustbincollect …for recycling

use…spit in public placesthrow things aboutcut down treessmokewaste

discussion

2.Plant trees 3.Wast water treatment

1.Recycle

Set it as a basic national policy.Design stricter laws to prevent further pollution. Make right development projects. Educate the public.Make reasonable use of resources

Everybody should remember:

There is only one earth for us. So the idea that everyone should keep in his or her mind is stopping any damage!

Homework1. Finish the comprehensive exercises on workbook.

2. Go to read the text a lot until you can retell it.

Tips: Make sure that your retelling includes the answers to the following questions:• What is pollution?• What are the sources of the pollution?• What are the measures to solve the pollution problem?

Thank you!

Good-bye!

Have a good day!

Water pollution

Food pollution

Air pollution

Air pollution

Water pollution

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