Unit 7 : POLLUTION
Lesson : Skills 1 (p12)
Monday, February 7th 2022
1.Vocabulary:
1. sewage (n)
:nước thải
2. herbicide (n)
:thuốc diệt cỏ
3. pesticide (n)
:thuốc trừ sâu
4.untreated (adj)
:không được xử lý
5. point source pollution (n)
:ô nhiễm
có nguồn
6. non-point source pollution (n)
:ô nhiễm không có nguồn
2. Exercise 1/ p12
white
black
to the lake
from the lake
clean
dirty
There aren’t any factories
There are some factories
Water pollution
Water pollution is the contamination of bodies of water such as lakes, rivers, oceans and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.
Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution.
Water pollution
Water pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases because of people drinking untreated water. Humans can even die if they drink contaminated water. Polluted water also causes the death of aquatic animals such as fishes, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and cause further damage to the environment.
So what should we do to reduce water pollution?
3/Answer the questions. p12
1. What does the second paragraph tell you about?
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2. What does the third paragraph tell you about?
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3. What is groundwater?
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4. What are point source pollutants?
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5. What are non-point source pollutants?
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6. Why do people use herbicides?
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The causes of water pollution. (nguyên nhân)
The effects of water pollution. (hậu quả)
It’s the water beneath the earth’s surface.
They are industrial waste, sewage, pesticides and herbicides.
They are pollutants from storm water and the atmostphere.
They use herbicides to kill weeds.
4/ Exercise 3/ p12 (complete the notes about effects of water pollution)
If the drinking water is untreated, an outbreak of ………………….may happen.
2. People drinking contaminated water may ……………
3. Fish, crabs or birds, may also die because of ……………
4. Other animals may become ill if they eat the ………..... animals.
5. Herbicides kill both weeds and ………………...
cholera: dịch tả
die
polluted water
dead
aquatic plants
4. Work in groups and discuss the solutions to water pollution. Make notes of your answers.
Give heavy fines to companies that are found doing this.
2. Educate companies about the environment.
3. Give tax breaks to companies that find “clean” ways to dispose of their waste.
B. SPEAKING.
5. Now complete the diagram of water pollution. Use the information from the text for the causes and effects and your group’s ideas for the solutions.
Homework:
Learn by heart the vocabulary.
Do the exercises D1,2- 7 (Workbook)
C2,3- 7 (Exercise notebook)
Prepare: Unit 7 (Skills 2)