AV10-UNIT 5

Examples of air pollution are dust storms , volcanic eruptions, forest fires caused by lightning, pollen, and marsh gases.A dust storm... A large amount of air pollution in cities comes

Giáo viên: VAN AI

Và các em học sinh trường THPT

dustmasks

* VOCABULARY

•+ to provide sb (with sth) [prE'vaId] (v):

to supply sb (with sth)

- This book will provide you with (all)

the information you need

" provision [prE'vIZn] (n)

Ex: book/ provide/ you/ information/ need.

Clean air provides us

with a healthy supply

of oxygen.

When wastes are poured into the

atmosphere, the air becomes contaminated

and unpleasant to breathe.

- Chúng ta không nên làm ô nhiễm dòng sông của chúng ta bằng các chất thải và các hóa chất.

-We shouldn’t contaminate our

river with wastes and chemicals.

Ex: water vapour

+ vapour ( BrE )['veIpE(r)]

(n):

= vapor (AmE)

a mass of very small drops of liquid in the air, for example steam

(n):

CO 2

Water vapour and carbon dioxide occur in the air naturally.

+ to occur [E'k3:(r)] (v): to exist or be found

somewhere Ex: Sugar/ occur/ naturally/ fruit.

- Sugar occurs naturally in fruit.

Examples of air pollution are dust storms , volcanic eruptions, forest fires caused by lightning, pollen, and marsh gases.

A dust storm

… volcanic

eruptions , forest fires caused by

lightning, …

+ volcano [vKl'keInEV ] (n)

(plural volcanoes / volcanos)

Ex: A volcanic eruption

- An active volcano may erupt at any time.

" volcanic [vKl'kXnIk] (adj)

lightning, …

A volcanic eruption

Hawaii is a collection of undersea volcanoes that have risen above sea level over millions of years to form a chain of islands

A forest fire

A forest fire caused by lightning

+ pollen ['pKlEn] (n): phấn hoa

khí đầm lầy (khí mêtan CH 4 )

+ other than: different or differently from Ex: I have no choice other than

to accept his offer.

A large amount of air pollution

in cities comes from sources

other than industry, mainly automobiles, home heating, and

garbage disposal.

+ garbage ['9A:bIdZ] (AmE) (n):

=waste food, paper, etc rubbish [#rLbIF] ( BrE )

that you throw away

… mainly

automobiles, home

heating, and garbage

disposal.

" disposal [dI#spEUzl] (n)

to get rid of sb or sth that you do not

want or cannot keep

Ex:

Ex: garbage disposal (việc xả rác)

- Chúng ta nên tìm cách tốt hơn để loại bỏ rác thải trong gia đình.

- We should find a better way to dispose of household garbage.

… mainly automobiles,

home heating, and garbage disposal.

4 Dust storms, volcanic eruptions and forest fires are among many sources that can pollute the air T / F

5 Industry is the only source of air pollution in cities T / F

B QUESTIONS

- What does clean air provide us with?

- (Clean air provides us with) a healthy supply of oxygen.

1 What / clean air / provide / us?

- When does the air become contaminated and unpleasant to breathe?

- When wastes are poured into the

atmosphere.

2 When / air / become / contaminate /

unpleasant / breathe?

3 What / some examples / air pollution/

nature?

- They are dust storms, volcanic eruptions, forest fires caused by lightning, pollen

and marsh gases.

in nature?

- Are automobiles and garbage disposal the only sources of air pollution in cities?

- No, they aren’t Some other sources

are industry, and home heating.

4 automobiles/ garbage disposal/ only/ sources / air pollution / cities?

An industrial smokestack Exhausted fume

Large fires cause significant air pollution

C Look at the following activities and decide what we should do ( Ì ) and what we shouldn’t do ( × ) to reduce air pollution:

- use the car all the time ×

- use bicycles for short distances Ì

-use public transport as much as

- use coal in heating and cooking ×

- burn garbage ×

- put garbage in dustbins so that they can be collected Ì

- keep our house and the surroundings clean

Ì

Ì

“The quickest is the winner”

D FUN CORNER

1 2

3 4

5 6

7 8

1 The synonym for “provide” is …………

2 Water ……… occurs in the air naturally

3 An active …… may erupt at any time

4 The adjective from the noun “volcano” is …

5 An example of air pollution is …… storms 8 ……… means “to get rid of sb/sth that 6 A volcanic …… is one of the causes of air pollution.7 Man cannot exist without …… , food and water

we don’t want or cannot keep”.9 O is the symbol of ………

P O L L U T I O N

CROSSWORD PUZZLE

1 The synonym for “provide” is ………

2 Water ……… occurs in the air naturally

3 An active ……… may erupt at any time.

4 The adjective from the noun “volcano” is ………

5 An example of air pollution is ……… storms.

6 A volcanic …… is one of the causes of air

pollution.

7 Man cannot exist without …… , food and water.

8 ………… means “to get rid of sb/sth that we don’t want or cannot keep”.

9 O is the symbol of ……….