PICTURE A
The ducks are white.
They're going to the lake.
There aren't any factories near
the lake.

PICTURE B
The ducks are black.
They're going far from the lake.
There are some factories near
the lake.

The lake water is clean.

The lake water is dirty.

What does the
picture tell you?

Water pollution

Unit 7: POLLUTION
Lesson 5: Skills 1

Vocabulary:
- contamination (n) /kənˌtæmɪˈneɪʃn/: sự làm bẩn
- groundwater (n)/ˈɡraʊndwɔːtə(r)/: nước ngầm
- pesticide (n)/ˈpestɪsaɪd/: thuốc trừ sâu
- herbicide (n)/ˈhɜːbɪsaɪd/: thuốc diệt cỏ
- insect (n)/ˈɪnsekt/: côn trùng
- cholera (n)/ˈkɒlərə/: dịch tả
- untreated water (n)/ˌʌnˈtriːtɪd/ /ˈwɔːtər/: nước chưa qua xử lí
- sewage (n)/ˈsuːɪdʒ/: nước thải

CHECK VOCABULARY: MATCHING
sewage cholera pesticides insects herbicides groundwater untreated water
1.

5.

3.

2.

6.

4.

7.

1. Guess True or False for each sentence below.
1. Groundwater is the water above the Earth's surface.
2. Industrial waste, sewage, pesticides and herbicides are factors
cause 'point source pollution.
3. The outbreaks of cholera, the death of aquatic animals and plants
are the effects of water pollution.
4. Polluted water only makes aquatic animals die.

Read the text and check your prediction

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 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?

Activity 2: Read the text and answer True or False, then correct
the false sentences.
1. Groundwater is the water above
beneath the Earth's surface.
F
2. Industrial waste, sewage, pesticides and herbicides are
factors cause 'point source pollution.

T

3. The outbreaks of cholera, the death of aquatic animals
and plants are the effects of water pollution.

T

not make aquatic animals die.
4. Polluted water only

F

only

3. Reading the text again and then answer the questions.
1. What is the first paragraph about?
2. What is the second paragraph about?
3. What is the third paragraph about?
4. What is ground water?
5. What are the point source pollutants?
6. What are the non-point source pollutants?
7. Why do people use herbicides?

1.
is ground
water?
2.
are
thefirst
non-point
source
pollutants?
3.
the
paragraph
about
?
4.
point
source
pollutants?
5. What
Why do
people
use
herbicides?
Water pollution is the
The
water
beneath
thewater
Earth's
surface.
The
Pollutants
definition
from
ofpesticides,
storm
water
pollution.
andherbicides.
the atmosphere.contamination of bodies
to
Waste,
sewage,
and
kill
weeds..
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.

50

10

20

70

30
gift

40

60
Points

e
r
a
h
s

JERRY
110

TOM
40

4. Correct the answers.
1. What is the first paragraph about?
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.

The definition of
water pollution

2. What is the second paragraph about?
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.

Causes of water
pollution

Water
Waterpollution
pollutioncan
canhave
havedramatic
dramatic
effects.
effects.InInmany
manypoor
poornations,
nations,there
thereare
are 3. What is the third paragraph about?
frequent
frequentoutbreaks
outbreaksofofcholera
choleraand
andother
other
diseases
diseasesbecause
becauseofofpeople
peopledrinking
drinking
untreated
untreatedwater.
water.Humans
Humanscan
caneven
evendie
die
ififthey
theydrink
drinkcontaminated
contaminatedwater.
water.
Polluted
Pollutedwater
wateralso
alsocauses
causesthe
thedeath
deathofof
Effects of water
aquatic
aquaticanimals
animalssuch
suchasasfishes,
fishes,crabs,
crabs,oror
pollution
birds.
birds.Other
Otheranimals
animalseat
eatthese
thesedead
dead
animals
animalsand
andmay
mayalso
alsoget
getsick.
sick.InIn
addition,
addition,herbicides
herbicidesininwater
watercan
cankill
kill
aquatic
aquaticplants
plantsand
andcause
causefurther
furtherdamage
damage
totothe
theenvironment.
environment.
So
Sowhat
whatshould
shouldwe
wedo
dototoreduce
reduce
water
waterpollution?
pollution?

4. What is ground water?
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.

The water
beneath the
Earth's surface

Water pollution can have many
5. What are the point source pollutants?
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
waste, sewage,
can also lead to water pollution.
pesticides, and
These factors cause 'point source'
herbicides.
pollution while pollutants from storm
water and the atmosphere result in
'non-point source' pollution.

6. What are the non-point source pollutants?
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.

pollutants from
storm water and the
atmosphere

7. Why do people use herbicides?
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.

to kill weeds.

5. Read the text again and fill each blank with no more than three
words.
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?

1. If the drinking water is untreated, an
cholera
outbreak of_____________may
happen
2. People drinking contaminated water
may ______________.
die
3. Fish, crabs or birds may also die
polluted water
because of ______________
4. Other animals may become ill if
they eat the ____________animals
dead
5. Herbicides kill both weeds
aquatic plants
and_____________.

6. Work in groups and discuss the solution to water pollution.

Reduce to use herbicides and
pesticides in agriculture

Treat water before pumping
out of the nature

Use purifier

Collect trash along the
beach

Plant more trees

Collect oil spills

HOMEWORK
- Write and learn by heart vocabulary.
- Write a paragraph (70-80 words) about the causes and effects
of water pollution.