UNIT 10: sources of energy
Lesson 4: skills 1 + 2
1. VOCABULARY:
- fossil fuels (n) nhiên liệu hóa thạch /ˈfäsəl ˈfiuəl/
- guest (n) khách / ɡest/
- hydro power (n) năng lượng thủy điện /ˈhaīdrō ˈpauər/
- dam (n) đập ngăn nước /dem/
- convert (v) chuyển đổi /kenvərt/
- generate (v) tạo ra, phát ra /ˈjenəˌreit/
- power machinery (n) năng lượng cho máy móc /ˈpauər məˈʃinəri:/
- turbine (n) động cơ quay/ˈtərˌbaīn/
- value (n/v) giá trị /ˈvaliu/
- A great deal of = a lot of: (phr) nhiều
- machinery (n) máy, máy móc /məˈʃin(ə)ri:/
2. Can wind and sun be used in the future?
* Guiding questions
1. What are the main sources of energy in VN?
* Read the Professor’s speech
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 can not 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.
Read Professor Galton’ speech to check your prediction
1. What are the main sources of energy in VN?
2. What types of energy sources will be used in the future?
Non-renewable energy sources
and hydro power
The sun and the wind
II. Match the verbs with the nouns
b. Answer the questions (p44)
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?

3. Why do you think the wind and the sun are called alternative sources of energy?

4. What types of energy does Viet Nam use most?

5. What does the professor think Viet Nam will use more in the future?



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?


3. Why do you think the wind and the sun are called alternative sources of energy?


4. What types of energy does Viet Nam use most?


5. What does the professor think Viet Nam will use more in the future?



→ Two. They are renewable and non-renewable sources
→ Hydro power is limited because dams can’t be built in certain areas. Nuclear power is dangerous.
→ Because they are natural sources of energy and we use them instead of non-renewable sources to get the electricity we need.
→ We use non-renewable sources of energy the most but we are increasingly using hydro power.
→ He thinks VN will use the wind and the sun as alternative sources of energy in the future
10
III. writing
1. Complete the article. Use the phrases below.
A. burning fossil fuels for energy
(đốt nhiên liệu hóa thạch để lấy năng lượng)
B. leading to climate change. (dẫn đến biến đổi khí hậu)
C. investing in renewable energy. (đầu tư vào năng lượng tái tạo)
D. because it can’t escape. It heats the planet.
(bởi vì nó không thể thoát ra. Nó làm nóng hành tinh.)
E. heating ours homes, cooking ours meals, etc
(sưởi ấm ngôi nhà của chúng ta, nấu bữa ăn của chúng ta, v.v.)
THE CHANGING CLIMATE (Biến đổi khí hậu)
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
Ex5. Discuss the following ways to save energy. Decide on the 5 most important.
What should you do to save energy ?
Reduce our electricity bills. (Giảm hóa đơn tiền điện của chúng ta)
Use electricity more efficiently. (Sử dụng điện hiệu quả hơn)
Turn off the lights before going to bed. (Tắt đèn trước khi đi ngủ)
Use low energy light bulbs. (Sử dụng bóng đèn tiết kiệm năng lượng)
Use public transport. (Sử dụng phương tiện công cộng)
Increase the tax on petrol. (Tăng thuế xăng dầu)
Avoid using cars or motorbikes for short trips.
(Tránh sử dụng ô tô hoặc xe máy cho các chuyến đi ngắn)
8. Reduce the use of fossil fuels. (Giảm sử dụng nhiên liệu hóa thạch)
Ex6. 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 all new words
practice speaking English at home
do the exercises C1-2 in the workbook (P.33)
- Prepare for the Unit 10-part Looking back.
See You Again
THANK YOU FOR YOUR ATTENTION