What problems are developing countries facing with?
?
?
?
?
?
poverty
diseases
low standard
of living
illiteracy
Shortage of energy
UNIT 11
SOURCES OF ENERGY
GROUP 4
WARMER
VOCABULARY
WHILE-READING
PRE-READING
AFTER-READING
UNIT 11
GAMES
WARMER
A. Oil
B. Solar energy
C. Electricity
D. Gas
E. Wind energy
MATCHING
1
2
3
4
5
VOCABULARY
PRE-READING
ANSWER THE QUESTIONS

1.What sources of energy do these pictures above
refer to ?
2. What do you need energy for ?

1.They are the wind power, the solar energy
and the water power.
2.We need energy to cook meal, to light,
eat, to run machines…..
WHILE-READING
At present, most of our energy comes from fossil fuels (oil, coal, and
natural gas). However, such reserves are limited. Because power
Demand is increasing very rapidly, fossil will be exhausted within a
relatively short time. Therefore, people must develop and use
alternative sources of energy
One alternative sources is nuclear energy. Nuclear energy can
provide enough electricity for the world’s needs for hundreds of years,
but it can be very dangerous. Another alternative source of energy is
geothermal heat, which comes from deep inside the earth. Scientists
use this heat to make energy. However, this energy is available only in a
few places in the world.
The sun, water, and the wind are other alternative sources of energy.
The wind turns windmills and moves sailboats. It is clean source of
energy, and there is lots of it. Unfortunately, if the wind does not blow,
there is no wind energy. When water moves from a high place to a
lower place, it makes energy. This energy is used to create electricity
Water power gives energy within pollution. However, people have to build
dams to use this energy. And as dams cost a lot of money, water energy is
expensive.

The sun releases large amounts of energy every day. This energy
can be changed into electricity. Many countries use solar energy for
their daily life. Solar panels on the roofs of houses can create enough
energy to heat or cool an entire house. Solar energy is not only
plentiful and infinite but also clean and safe.
Although there are some disadvantages, the potential of alternative
sources of energy is great. However, how to make full use of these
sources of energy is a question for researchers all over the world.
alternative -limited – energy- released - exhausted

Task 1: Fill each blank with a suitable word
1.Six hundred balloons were……………………..at the ceremony.
2.They are looking for………………......methods of making it.
3.People use ……………..to run machines, heat and cool their homes.
4. The food in the restaurant is cheap, but the choice is rather………………....
5. Fuel supplies are nearly…………………………
released
alternative
energy
limited
exhausted
FILL IN THE TABLE :
TASK 2
It is not only plentiful
and infinite but also
clean and safe
It is clean and
unlimited
It’s available
It’s only possible during
the day time
There’s no wind energy
when there is no wind
It’s expensive
It is only possible in few
places
It is clean and
unlimited
It is unlimited
It can be very
dangerous
Task 3
Answer the questions
AFTER-READING
We need energy to live and work. Our major source of (1)………………
is oil. Oil is (2)…………......kind of fossil fuel. The amount of fossil
(3)………………in the world is (4)…………….. Therefore, we must
save it, and at the same time, we must find new sources of energy.
Geothermal heat and nuclear power are (5)……………… sources of
Energy. They can give us electricity. Other alternative (6)…………….
are the sun, waves and water. These sources are not only (7)…………...
and available but also clean and safe for the (8)……………... People
Should develop and use them more and more in the future.
Fill each blank with a suitable word
one environment alternative limited
unlimited sources energy fuels
energy
one
fuels
limited
alternative
sources
unlimited
environment.
GAMES
Lucky numbers
1
2
3
4
5
6
LUCKY NUMBER
What is our major source
of energy ?
Fossil fuel is our major
source of energy.
You are
Lucky ^-^
The ………….....create electricity.
water power
wind power
You are
lucky ^-^
What sources of energy can
replace fossil fuels ?
Geothermal heat, wind energy
water energy, nuclear power
and solar energy.
Intellectual game
1
2
3
4
5
6
7
8
E
G
R
E
N
E
F
S
O
U
O
S
C
R
Y

The wind turns windmills and moves ……………………
sailboats
THANK YOU
GOOD BYE