Unit 10. Conservation

Welcome to our class 10
Air pollution
Forest fires
extinction
What do you think about these pictures?
flood

Unit 10 : CONSERVATION
Lesson 1 : Reading
Unit 10: Conservation
* New words :
- To Conserve ( v )

- Eliminate (v)
- To run off ( v )
- Circulation (n)
bảo tồn, duy trì
- Conservation (n)
= disappear
sự bảo tồn, sự duy trì
- Hydroelectric dam (n)
sự lưu thông
đập thuỷ điện
Ex: We should conserve natural resources .
Ex: A lot of wild plants and animals are eliminated every year.
chảy, trôi đi
- Rapid run - off (n)
sự thoát nước nhanh
Ex: 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 – Work in pairs:
1. eliminate
2. circulation
3. run-off
4. hydroelectric
a. the movement of ST around a closed system
b. concerning or producing electricity by the power of falling water
c. remove or get rid of completely
d. liquid which flows off or from (ST)
Task 2: Decide whether the following statements are true (T) or false (F) – Work in groups.
1. 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.

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Without plants, most water would run off as soon as it falls. Rapid run-off would cause floods.
We can stop worsening the problems.
( Paragraph A - line : 2 )
( Paragraph A - line : 3, 4 )
( Paragraph B - line : 3, 4 )
( Paragraph C - line : 1, 2 )
( Paragraph B - line : 6, 7 )
( Paragraph C - line : 5, 6, 7 )
Task 3: Choose the most suitable main idea for each paragraph.
1. We cannot live without water.
2. Let’s do something to save the earth.
3. Forests give us a lot of valuable things.
4. Vegetation can help conserve water.
Unit 10: Conservation
Answer the following questions:
What is the consequence of losing forest?

How important is water in our life?

What should we do for the future of our planet?
The loss of the forest will cause destruction in the earth’s plant and animal variety.
Humans need a constant supply of water to survive.
We can stop worsening the problem, while scientists search for answers, laws are passed to help conserve natural.
Unit 10: Conservation
Answer the following questions:
What is the consequence of losing forest?

How important is water in our life?

What should we do for the future of our planet?
→ The loss of many forests is destroying the earth.
→ Man and most animals need a constant supply of water to live. Farmers need water for their crops.
→ We should stop polluting rivers and seas and stop the disappearance of plants and animals.