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 fuels will be exhausted within a relatively short time. Therefore, people must develop and use alternative sources of energy.
One alternative source 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 a clean source of energy, and there is lots of it . Unfortunately, if the wind does not blow, there is no wind energy. When weather moves from a high place to a lower place gives energy without pollution. However, people have to build dam to use this energy. And as dams cost a lot of energy, 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 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
TASK 2: Scan the passage and write down the advantage (s) and disadvantage (s) of each alternative source of energy.
It’s unlimited.
It can be very
dangerous.

It’s not only plentiful and
infinite but also clean and safe.

It’s only possible
during the day time.

It’s clean and unlimited.
It’s expensive.

It’s clean and unlimited.
There’s no wind energy
when there is no wind.
It’s available.
It’s available only in
a few places.
Nuclear power
Solar energy
Water power
Wind power
Geothermal heat

next
“Lucky Animal” game
What is our major source of energy ?
Our major source of energy comes from fossil fuels.
Is our major source of energy limited ? Why / why not ?
Yes, it is. Because power demand is increasing very rapidly , fossil fuels will be exhausted within a relatively short time .
How many sources of energy are mentioned in the text ?
What are they ?
Five sources of energy are mentioned in the text. They are : nuclear power, solar energy , water power, wind power , geothermal heat.
Which source of energy do you think has the most potential?
I think solar energy is the most potential.
Your answer is incorrect !!
Lucky animal !
Complete the summary of the reading passage by filling each
blank with a suitable word from the box.
one, environment, alternative, limited,
unlimited, sources, energy, fuels
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.

one
fuels
limited
alternative
sources
unlimited
environment
energy
Thank you very much for your attendance !