Unit 9:Preserving the environment
Listening
1. Listen and tick the words you hear.
Degrade

Resulted


Erosion

Civilization


Sewage

Aquatic


Awareness

Mass media



2. Listen and choose the best title.
1. The natural environment has been seriously _____ and degraded by human activities through many decades.
A. Affected B. Affect C. Effect D. Effected
2. The burning of fossil fuels by factories and motor vehicles has led to air pollution and resulted in acid rain, greenhouse effect and _________
A. Global Warming B. Polar ice melting C. Flood D. Land erosion
3. Deforestation for land use has affected the________ and led to the extinction of rare animals, extreme floods and land erosion.
A. Environment B. Plant C. Ecosystem D. Greenhouse
4. They have change and degraded the natural environment and led to _______
A. Healthy problems B. Health problems C. Serious problems D. Travelling problems
5. We should______ the burning of fossil fuels and encourage forestation to replace deforestation.
A. Control B. Reduce C. Decrease D. Eliminate
6. People should make ______ to protect environment for the next generation.
A. Toxic materials B. Friendly goods
C. Useful materials D. Friendly materials

3. Listen. Complete the sentences with the words from the box.
motor vehicles
rare animals
make

forestation
floods and land
animals and plants

rubbish
chemicals
effort


The environment is the natural world in which people, _____________live.
The burning of fossil fuels by factories and__________has led to air pollution.
The use of harmful _________in agriculture has led to serious soil pollution.
Deforestation for land use has affected the ecosystem and led to the extinction of____________, and extreme ______________erosion.
We should encourage ___________to replace deforestation.
We should be appropriate places to dump harmful _________and chemicals to reduce the rate of water pollution.
We should _____ every ______to preserve the environment for the next generation.
4.Choose the best title.
A. How to overcome natural disasters
B. Natural resource depletion
C. Environmental degradation
D. Deforestation and its effects
Ex5: Discuss. “What can you do to protect the natural environment?”
- Protect environment:
+ Plant trees
+ Dump rubbish in appropriate places
+ Recycle paper
+ Your ideas?

KEY
Ex1: Listen and tick the words you hear.
- Degraded
-Erosion
- Sewage
- Resulted
- Civilization
- Aquatic

Ex2. Listen and choose the best title.
1. The natural environment has been seriously _____ and degraded by human activities through many decades.
A. Affected B. Affect C. Effect D. Effected
2. The burning of fossil fuels by factories and motor vehicles has led to air pollution and resulted in acid rain, greenhouse effect and _________
A. Global Warming B. Polar ice melting C. Flood D. Land erosion
3. Deforestation for land use has affected the________ and led to the extinction of rare animals, extreme floods and land erosion.
A. Environment B. Plant C. Ecosystem D. Greenhouse
4. They have change and degraded the natural environment and led to _______
A. Healthy problems B. Health problems C. Serious problems D. Travelling problems
5. We should______ the burning of fossil fuels and encourage forestation to replace deforestation.
A. Control B. Reduce C. Decrease D. Eliminate
6. People should make ______ to protect environment for the next generation.
A. Toxic materials B. Friendly goods
C. Useful materials D. Friendly materials
Ex3:Listen. Complete the sentences with the words from the box.
The environment is the natural world in which people, animals and plants live.
The burning of fossil fuels by factories andmotor vehicles has led to air pollution.
The use of harmful chemicals in agriculture has led to serious soil pollution.
Deforestation for land use has affected the ecosystem and led to the extinction of rare animals, and extreme floods and landerosion.
We should encourage forestation to replace deforestation.
We should be appropriate places to dump harmful rubbishand chemicals to reduce the rate of water pollution.
We should make every effortto preserve the environment for the next generation.
Ex4: Choose the best title
C. Environmental Degradation.