Welcome to our class
Unit 10 : Sources of Energy
Period Skill 1,2
2
What are the main sources of energy in Viet Nam?
What types of energy sources will be used in the future?
Professor Galton
Renewable and
non-renewable energy.
1. CREATE
2. DRIVE
3. GENERATE / CONVERT INTO
4. TURN
5. HEAT
A. MACHINERY
B. TURBINES
C. ALTERNATIVE ENERGY
D. HOUSES
E. ELECTRICITY
nuclear
wind
solar
coal
biogas
oil
natural gas
hydro
Dear guests, I’d like to talk to you today about renewable and non-renewable energy.

Fossil fuels are non-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity, or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too.

Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous.

The sun and the wind are other alternative sources of energy. The wind turns turbines to make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.
Dear guests, I’d like to talk to you today about renewable and non-renewable energy.

are non-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity, or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too.

Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous.

The sun and the wind are other alternative sources of energy. The wind turns turbines to make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.
Fossil fuels
Fossil fuels
nuclear
wind
solar
coal
biogas
oil
natural gas
hydro
Answer the questions:
1. How many types of energy sources are mentioned in the text? What are they?
2. What are the disadvantages of hydro and nuclear power?
5. What does the professor think Vietnam will use more in the future?
3. Why do you think the wind and the sun are called alternative sources of energy?
4.What types of energy does Vienam use most?
1. How many types of energy sources are mentioned in the text? What are they?
Two, they are renewable and
non-renewable.
2. What are the disadvantages of hydro and nuclear power?
Hydro power is limited because dams cannot be built in certain areas. Nuclear power is dangerous.
3. Why do you think the wind and the sun are called alternative sources of energy?
Because they are natural sources of power and we use them instead of non-renewable sources to get electricity we need.
4. What types of energy does Vietnam use most?
We use non-renewable sources of energy the most but we are increasingly using hydro power.
5. What does the professor think Vietnam will use more in the future?
He thinks Vietnam will use the wind and the sun as alternative sources of energy in the future.
What is your favourite source of energy?
18
III. writing
1. Complete the article. Use the phrases below.
A. burning fossil fuels for energy
B. leading to climate change
C investing in renewable energy
D because it can’t escape. It heats the planet
E. heating ours homes, cooking ours meals, etc
THE CHANGING CLIMATE
problem
We use energy for almost everything we do: for (1)…………………………………… .......... This use of energy is (2)………………………....... - the world is heating up. When
(3)………………….........................carbon dioxide is released. Carbon dioxide traps the sun’s heat in the atmosphere and
(4)……………........................................ Over the past thirty years, there has been a growing number of extreme weather event, such as floods, droughts and storms.

E. heating ours homes, cooking ours meals, etc
D because it can’t escape. It heats the planet
A. burning fossil fuels for energy
B. leading to climate change
Solution
We should protect our planet, by (5)……………………………………… . We should use sources of energy more wisely, for our future, and the future of the planet.

C. investing in renewable energy
2. Discuss the following ways to save energy. Decide on the 5 most important.
What should you do to save energy ?
Reduce our electricity bills.
Use electricity more efficiently.
Turn off the lights before going to bed.
Use low energy light bulbs.
Use public transport.
Increase the tax on petrol.
Avoid using cars or motorbikes for short trips.
Reduce the use of fossil fuels.
3. Write a short passage about what we should do to save energy
Star like this:
Every day, we use too much energy at home. We should use low energy light bulbs. I think we should ………………………………………
Homework
Learn by heart the new words.
Do the exercises of unit 10 in the workbook.