saving the earth
DESCRIPTION
Saving the earth. Lesson 34 Unit 9. Earth, Air and Water. USA Alska. Lake Baikal. Russia. Germany. Dunhuang Gebi. China. Mediterranean Sea. India. EARTH. AIR. WATER. Many parts of the world with large population and plenty of crops have become desert. - PowerPoint PPT PresentationTRANSCRIPT
Saving the earth
Lesson 34 Unit 9
Earth, Air and Water
Lake Baikal
DunhuangGebi
India
Mediterranean Sea
Germany
USAAlska
China
Russia
EARTH
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.
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.
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.
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.
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)
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)
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)
k
Phenomena Causes Suggestions
E
A
R
T
H
The area of desert is growing every
year.
Good soil is gradually lost.
A
I
R
Air is being polluted.
A lot of people died from polluted
air in both Russia and India.
Trees in the forest are destroyed
and fish in the lakes are killed.
W
A
T
E
R
In some places it’s no longer safe
for swimming, nor is it safe to eat
the fish.
Lake Baikal, which used to be the cl
eanest in the world,is now polluted.
Phenomena Causes Suggestions
E
A
R
T
H
The area of desert is growing every
year.
Cattle eat grass. Limit the number of
the cattle.
Good soil is gradually lost.
Trees being cut down; strong
winds blowing the valuable soil
away.
Plant more trees and
try to protect them.
A
I
R
Air is being polluted. Factries,power stations and cars
produce a lot of waste.
A lot of things have to
be down to reduce pol
lutionn. New laws sho
uld de passed and peo
ple should realize ho
w serious the problem
is.
A lot of people died from polluted air
in both Russia and India.
There are serious accidents that
polluted the air.
Trees in the forest are destroyed and
fish in the lakes are killed. Chemical rain.
W
A
T
E
R
In some places it’s no longer safe for
swimming, nor is it safe to eat the fish.
Factories and cities produces a
lot of waste. Same as above.
Lake Baikal, which used to be the clea
nest in the world,is now polluted.
Waste produced from a
chemical factory.
The main idea of each passage
Earth:
Air:
Water:
The area of desert is growing and good soil is gradually lost.
Chemicals in the smoke cause a lot of damage and serious accidents took place from time to time.
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.
DISCUSSION
(1) What kind of pollution can you think of ?(2) Why trees are important?(3) What are the causes of water pollution?(4) What can be done to stop land from becoming into desert?(5) What else do we know about the problems that the earth is facing?(6) What steps should we take to save the earth?
A lot of damage has already been done to the earth, including pollution, nuclear waste, radiation and so on. We are also aware that there is only one earth for us. So the idea that everyone should keep in his or her mind is stopping any damage to the world and saving the earth.
So everybody should remember:
practiceNow you are a reporter from the 21st Century , when you are making a social survey in your home town, you see some factories in your home town are seriously polluting the air and the water. The environment is not well protected. You are going to Interview a government official and write a report about what you see. You are supposed to tell the Importance of stopping the pollution and Protecting the environment. Now do the interview first in pairs and then make an oral report according to the following pictures.