English 8
UNIT 7 . POLLUTION
PERIOD 58: SKILLS 1

1. What do the picture A- B tell you?

- The ducks are white.
- They're going to the lake.
- There aren't any factories
near the lake.
- The lake water is clean.

- The ducks are black.
- They're going from the lake.
- There are some factories near
the lake.
- The lake water is dirty/black.

A. READING:

I. Vocabulary:

- sewage (n): nước thải sống, nước cống
- household (n): hộ gia đình
- pesticide (n): thuốc trừ sâu
- herbicide (n): thuốc diệt cỏ
- factor (n): nhân tố
- dramatic (adj): kịch tính, sâu sắc
- outbreak (n): sự phun ra, sự bùng phát
- cholera (n): bệnh tả
- untreated (adj): không xử lý

2. Mi and Nick have decided to give a presentation on water pollution to the class.
Read what they have prepared and answer the questions.
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 'nonpoint source' 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 fish, 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?

ANSWER THE QUESTIONS

1. What does the second paragraph tell you about?
The second paragraph tells about the causes of water
pollution.
2. What does the third paragraph tell you about?
The third paragraph tells about the effects of water pollution.
3. What is groundwater? .
It's the water beneath the Earth's surface.
4. What are point source pollutants?
They are industrial waste, sewage, pesticides, and herbicides.
5. What are non-point source pollutants?
They are pollutants from storm water and the atmosphere.
6. Why do people use herbicides?
They use herbicides to kill weeds.

3. Read the text again and complete the notes about the effects of water
pollution. Fill each blank with no more than three words.
cholera
1. If the drinking water is untreated, an outbreak of ………… may
happen.
die
2. People drinking contaminated water may ……
polluted water
3. Fish, crabs or birds, may also die because of ………………
dead animals.
4. Other animals may become ill if they eat the …………
aquatic plants
5. Herbicides kill both weeds and ……………..

B.

IV. Homework:
- Learn by heart the vocabulary.
- Do the exercises D1,2- 7 (Workbook)
C2,3- 7 (Exercise notebook)
- Prepare: Unit 7 (Skills 2)