R Trees in the forest are destroyed and fish in the lakes are killed.
W In some places it’s no longer
A safe for swimming, nor is it
T safe to eat the fish.
1. Many parts of the world with large population and plenty of crops have become desert.(T)
2. Land may become poor if farmers do not limit their cattle.(T)
5. Chemicals in the smoke from power stations can travel hundreds of miles before falling down to the rain.
6. After a bad accident at a nuclear power station, 50%of the trees in Germany were damaged.
5. Chemicals in the smoke from power stations can travel hundreds of miles before falling down to the rain.(F)
6. After a bad accident at a nuclear power station, 50%of the trees in Germany were damaged.(F)
7. The writer uses the examples of the accidents in both India and Russia to explain how water is polluted.(F)
8. Once oceans are polluted, they are not able to clean themselves.(F)
R T Good soil is gradually lost.
H
Cattle eat grass.
Trees being cut down; strong winds blowing the valuable soil away.
Limit the number of the cattle.
Plant more trees and try to protect them.
AIR
WATER
1. Many parts of the world with large population and plenty of crops have become desert.
2. Land may become poor if farmers do not limit their cattle.
Air is being polluted.
Factries,power stations and cars produce a lot of waste.
A A lot of people died from polluted There are serious accidents
air in both Russia and India.
that polluted the air.
I
பைடு நூலகம்R Trees in the forest are destroyed
7. The writer uses the examples of the accidents in both India and Russia to explain how water is polluted.
8. Once oceans are polluted, they are not able to clean themselves.
Phenomena
E The area of desert is growing A every year. R T Good soil is gradually lost. H
Air is being polluted.
A lot of people died from A polluted air in both Russia and I India.
Saving the earth
Lesson 34 Unit 9 Earth, Air and Water
BY HUANG SHAOLU
USA Alska
Lake Baikal
Germany Mediterranean Sea
Russia Dunhuang
ChinaGebi
India
EARTH
3. Good soil is gradually lost these days as trees are being cut down.(T)
4. Air pollution and water pollution are the two causes of problem that many parts of the world have become desert.(F)
E Lake Baikal, which used to be
R
the cleanest in the world,is now polluted.
Causes
Suggestions
Phenomena
Causes
Suggestions
E The area of desert is growing A every year.
3. Good soil is gradually lost these days as trees are being cut down.
4. Air pollution and water pollution are the two causes of problem that many parts of the world have become desert.