Te 8 ruscha indd

7 2
U N IT 9 THE E N VIR O N M EN T
bacteria which clean the underground water. 
The chemicals later will come back again 
into our own drinking water. These chemicals 
are also found in fish and other wildlife.
3) Try to use electronic papers and maga­
zines.
4) Buy rechargeable batteries and use a 
battery charger. One rechargeable battery 
can be used instead of 100 usual batteries. 
They will perform better if you keep them in 
the refrigerator.
5) Most supermarkets have started using 
reusable bags to plastic bags. You can buy 
and use them every time.
6) Buy local products. This makes less 
pollution from transporting goods for long 
distances.

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LESSON 4 Global climate change
2 a
1 
Listen and re p e a t th e new w o rd s .
flood, tsunami, heat wave, hurricane, 
oxygen, CO2 (gas), hunger, spray
2 b W o rk in p a irs . Read and c h e c k y o u r id ea s.
Climate plays a very important role in the life 
of plants, animals and humans, and is d if­
ferent in different parts of the world. Some 
scientists think that the world is becoming 
hotter. Winters have become warmer be­
cause of the greenhouse gas. During the 
last 
100 years people have produced a lot 
of CO2 gas. This gas in the air works like 
glass in a greenhouse. It lets heat get in, but 
it does not let much heat get out. So the air 
becomes warmer. Where does the CO2 gas 
come from? CO2 gas is mostly produced by
3 Look a t th e R em em ber box and c o m p le te th e se n te n ce s. 
Use v e ry  o r re a lly .
W ork in pairs. Answ er th e questions.
1) What do you know about ‘climate 
change’?
2) Where does the ‘greenhouse gas’ 
come from? Is it good or bad?
human activities. We produce CO2 when we 
burn fossil fuels, use electricity, transport or 
other activities, for example, when we use 
spray for body or hair. Trees take this gas 
from the air and give oxygen. But in the last 
few years, people have cut down and burnt 
big areas of rainforest. This means there 
are fewer trees and, of course, more CO
2 
gas! These changes are dangerous for our 
planet because every year we have more 
floods, tsunami, hurricanes and fires.
1) The floods are e .g . really awful events on the earth. 2) After walking 
through the snow, my feet were ... freezing. 3) We’ve just had some ... bad 
news. 4) The weather was ... terrible. 5) When it is ... hot, we drink a lot of 
water. 
6) In Europe we don’t usually have ... boiling weather. 7) They had 
... miserable conditions of life. 
8) The natural disaster was ... awful when 
it first appeared in the news program.
W o rk in p a irs. Look a t th e p ic tu re s . Liste n and co m p le te
th e ta b le w ith y e a rs and n a tu ra l d is a s te rs .
5
W o rk in p a irs. Listen one m ore 
tim e and c o m p le te th e ta b le . 
W o rk in p a irs. T hin k w h a t p e o p le can 
do to re d u c e c lim a te cha ng e. C o m p le te
th e ta b le . Use m u s tn ’ t, c o u ld , m ay, 
s h o u ld , s h o u ld n ’ t.
R em em ber:
2011 - two thousand and eleven or
twenty eleven
very bad = really awful