AV10-UNIT 5

Giáo viên: VAN AI
Và các em học sinh trường THPT
* 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.
Ex:
+ to contaminate [kEn`tXmIneIt] (v):
to contaminate sth (with sth)
to make dirty
" contamination [kEntXm1#ne1Fn] (n)
-The drinking water has become contaminated with lead.
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


+ carbon dioxide [`kA:bEn daI`KksaId] (n):

CO2
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
+ volcano [vKl`keInEV ] (n)
- An active volcano may erupt at any time.
" volcanic [vKl`kXnIk] (adj)
Ex:
- A dormant volcano [`dC:mEnt]
- An extinct volcano [Ik`stINkt]
.volcanic eruptions, forest fires caused by 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
+ marsh gas [mA:F �ỉs] (n):
khí đầm lầy (khí mêtan CH4)
+ 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):
= rubbish [#rLbIF] (BrE)
waste food, paper, etc. that you throw away

. mainly automobiles, home heating, and garbage disposal.
" disposal [dI#spEUzl] (n)
+ to dispose of sb / sth [dI#spEUz] (v):
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.
*VOCABULARY
* to provide [prE`vaId]
" provision [prE`vIZn]
* to contaminate [kEn`tXmIneIt]
* contamination [kEntXmI`neIFn]
* vapour [`veIpE(r)]
* carbon dioxide [`kA:bEn daI`KksaId]
* occur [E#k3:(r)]
* volcano [vKl`keInEV]
" volcanic [vKl`kXnIk]
* pollen [`pKlEn]
* marsh [mA:F]
* dispose [dI#spEUz]
" disposal [dI#spEUzl]
* garbage [`9A:bIdZ]
* COMPREHENSION
A. TRUE (T) - FALSE (F)
Clean air is very necessary for our T / F
health.
2. Wastes make the air dirty and T / F
unpleasant to breathe.
3. Water and carbon dioxide occur in the air naturally. T / F

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.
- What are some examples of air pollution 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 possible
Ì
- 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
S U P P L Y
V A P O U R
V O L C A N O
V O L C A N I C
D U S T
E R U P T I O N
A I R
D I S P O S E
O X Y G E N
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 ………………….






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 …………………….