第二册第34课

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Air is being polluted.

 Factories, power stations and cars produce a lot of waste.

 A lot of things have to be done to reduce pollution. New laws should be passed and people should realize how serious the problem is.

A lot of people died from polluted air in both Russia and India.

 There were serious accidents that polluted the air.

Trees in the forest are destroyed and fish in the lakes are killed.

Chemical rain.

W

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T

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 In some places it’s no longer safe for swimming, nor is it safe to eat the fish.

 Factories and cities produce a lot of waste.

Same as above.

Lake Baikal, which used to be cleanest I the world, s now polluted.

 Waste produced from a chemical factory.

2.to summarize the text by giving the main idea of each passage.

Earth:

The area of desert is growing and good soil is gradually lost.

Air:

Chemicals in the smoke cause a lot of damage and serious accidents took place

from time to time.

Water:

Water pollution is caused by man’s waste.  The waters of this great lake have been dirtied and 4800 square km of ocean were polluted by oil.

Step&n