Unit 10. Conservation

Unit 10:Conservation
A:Reading
Before you read
Destroy (v):pha hñy
Destruction(n): sù ph¸ hñy
Constant(adj):kh«ng thay ®æi, nhÊt ®Þnh
Play an important part in sth : ®ãng mét vai trß quan träng trong…
Conserve(v):gi÷ g×n, b¶o tån
Clean up (v):lµm s¹ch
Pass laws:th«ng qua luËt
Paragraph
A

The loss of forest is destroying the earth’s plants and animals variety. Scientists say about 5,000 species of plants and animals are eliminated each year. This is especially worrying as many of those plants and animals could be used as medicines against cancer, AIDS, hearts disease and many other sicknesses. We may never know the true cost of this destruction.
Paragraph
B

Man and most animals need a constant supply of water to live. Farmers need water for their crops. Hydroelectric dams hold back needed water and provide power for homes and industries. Trees, grasses, and other plant life play an important part in the natural circulation of water, and thus help conserve it. Without plants, most water would run off as soon as it falls, taking away valuable soil. Rapid run – off would cause frequent floods and leave little water during dry seasons.
Paragraph
C
These days it is impossible to open a newspaper without reading about the damage we are doing to the environment. The earth is being threatened and the future looks bad. What can each of us do? We cannot clean up our polluted rivers and seas overnight. Nor can we stop the disappearance of plants and animals. But we can stop worsening the problem while scientists search for answers, and laws are passed in nature’s defence.
The loss of forest is destroying the earth’s plants and animals variety. Scientists say about 5,000 species of plants and animals are eliminated each year. This is especially worrying as many of those plants and animals could be used as medicines against cancer, AIDS, hearts disease and many other sicknesses. We may never know the true cost of this destruction.
Man and most animals need a constant supply of water to live. Farmers need water for their crops. Hydroelectric dams hold back needed water and provide power for homes and industries. Trees, grasses, and other plant life play an important part in the natural circulation of water, and thus help conserve it. Without plants, most water would run off as soon as it falls, taking away valuable soil. Rapid run – off would cause frequent floods and leave little water during dry seasons.
Task 1:Match the word in A with a suitable definition in B
A
B
eliminate
Circulation
Run-off
hydroelectric
The movement of something around a closed system
concerning or producing electricity by the power of falling water
Remove or get rid of completely
Liquid which flows off or from (something)














Task 1:Match the word in A with a suitable definition in B
A





B
eliminate
Circulation
Run-off
hydroelectric
The movement of something around a closed system
concerning or producing electricity by the power of falling water
Remove or get rid of completely
Liquid which flows off or from (something)
Task 2: Decide whether the following statements are true(T) or false (F).

Each year about fifty hundred species of plants
and animals are eliminated.
2.Many kinds of plants could be used to treat
various dangerous diseases.
3.Water can be held on land by vegetation.
4.Man is constantly doing harm to the environment.
5.Plants may cause floods and erosion.
6.We can do nothing to save the earth.
Task 2: Decide whether the following statements are true(T) or false (F).

Each year about fifty hundred species of plants
and animals are eliminated.
2.Many kinds of plants could be used to treat
various dangerous diseases.
3.Water can be held on land by vegetation.
4.Man is constantly doing harm to the environment.
5.Plants may cause floods and erosion.
6.We can do nothing to save the earth.


Task 3:Choose the most suitable main idea for each paragraph.



We cannot live without water.
Let’s do something to save the earth.
Forests give us a lot of valuable things.
Vegetation can help conserve water.


Task 3:Choose the most suitable main idea for each paragraph.



We cannot live without water.
Let’s do something to save the earth. C
Forests give us a lot of valuable things. A
Vegetation can help conserve water. B
After you read
Answer the following question
1.What is the consequence of losing forest?
2. How important is water in our life ?
3. What should we do for the future of our planet?
1.What is the consequence of losing forest?
The consequence of losing forest is destroying the earth’s plant and animal variety.
2. How important is water in our life ?
Man and most animals need a constant supply of water to
live on.
3. What should we do for the future of our planet?
We should protect our environment by passing laws in nature’s defence.