Unit 10. Sources of Energy. Lesson 5. Skills 1

Welcome to our class 7A3!
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?
What is your favourite source of energy?
How many types of energy sources are mentioned in the text? What are they?
Two, they are renewable and
non-renewable.
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.
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.
nuclear
wind
solar
coal
biogas
oil
natural gas
hydro
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 types of energy does Vietnam use most?
We use non-renewable sources of energy the most but we are increasingly using hydro power.
non - renewable
create energy, generate electricity, and drive machinery
harmful to the environment
renewable
generate a great deal of energy/ plentiful
limited /dams cannot be built in certain areas.
renewable
dangerous
renewable
renewable
not available
not available
convert into electricity,
heat or coal the houses/ abundant, clean, safe
make electricity/
abundant, clean, safe
Let’s talk!!!
Sources of energy
What is its advantage?

What type is it?
What is its disadvantages?
Ask and answer about advantages and disadvantages of energy sources.
A: What type of energy is oil?
B: It is non-renewable source of energy, because it can not easily be replaced.
A: What are its advantages and disadvantages?
B: It can be used to power machinery, but it also pollutes the environment.
Ask and answer about advantages and disadvantages of energy sources.
A: What type of energy is oil?
B: It is non-renewable source of energy, because it can not easily be replaced.
A: What are its advantages and disadvantages?
B: It can be used to power machinery, but it also pollutes the environment.
A: What type of energy is oil?
B: It is non-renewable source of energy, because it can not easily be replaced.
A: What are its advantages and disadvantages?
B: It can be used to power machinery, but it also pollutes the environment.
A: What type of energy is oil?
B: It is non-renewable source of energy, because it can not easily be replaced.
A: What are its advantages and disadvantages?
B: It can be used to power machinery, but it also pollutes the environment.
Oil is a non-renewable source of energy because it can not easily be replaced. It can be used to power machinery, but it also pollutes the environment .
Hydro power is a renewable source of energy because it comes from water. It is cheap and plentiful. Unfortunately, dams can only be built in certain areas.
Homework
Learn by heart the new words.
Do the exercises of unit 10 in the workbook.
Write a short passage about the advantages and disadvantages of each type of energy sources.