English 7
WELCOME TO OUR CLASS
Warm-up
+ Tell me some energy sources.
+ Will it last forever or run out of someday?
+ How to save energy?
UNIT 10
SOURCES OF ENERGY
Period 85: Lesson: Skills 2
climate change(n):
drought (n):
escape (v):
release (v):
use up (v):
lead to (v):
heat up (v):
avoid (v):
invest (v):
increase (v):
reduce (v):
VOCABULARY
Biến đổi khí hậu
Hạn hán
Trốn, thoát
Thải ra
Sử dụng hết
Dẫn tới
Làm nóng lên
tránh
Đầu tư
Tăng
Giảm
He can escape from a fire
Coal power companies release dioxide into the atmosphere
Don`t use up all the hot water when you take a shower! I want to have one too.
This road leads to my best friend Susie’s house
* Guess True or False
Non-renewable sources are being used up.
Many poor people in developing countries have little electricity.
Biogas is a new source of energy available for poor people.
Biogas creates a lot of smoke.
The new energy source is not costly.
True or false statements.
is smoke-free
Complete the sentences.
1. People in ______________ areas have to gather wood to use as fuel.
2. Biogas is mainly used for _____________________.
3. Biogas helps solve the problem of indoor _____________.
4. The use of renewable energy sources in developing countries is __________________.
5. In the future, the ___________________ will be used as the environmentally friendly energy sources.
mountainous
cooking and heating
air pollution
on the increase
wind and the sun
Nguyên nhân
gây biến đổi khí hậu
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 events, such as floods, droughts and storms.
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.
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 our homes, cooking our meals, etc.
B.
Complete the article
Use electricity more efficiently.
2. Reduce our electricity bills.









3. Turn off the lights before going to bed.
4. Use low energy light bulbs.
5. Use public transport.
6. Increase the tax on petrol.
7. Avoid using cars or motorbikes for short trips.
8. Reduce the use of fossil fuels.
What should we do to save energy?
DECIDE ON THE FIVE MOST IMPORTANT WAYS
Nowadays, energy is very important with our life and non-renewable sources are being used up. So, we should find some ways to save energy. For example, we should turn off the light when we go out or go to bed. We should use the low light bulbs. And we also can ride to school more often.
Travelling with Doraemon
Non-renewable or renewable sources are being used up

B. non-renewable
A. renewable
A. biogas
B. coal
Which is a new source of energy available for poor people?


A. water pollution
B. air pollution
Biogas helps solve the problem of indoor______

A. right
B. wrong
To save energy, we should turn off the lights before going to bed and use low energy light bulbs
A. sun and wind
B. nuclear and oil
In the future, the ________and the___________ will be used as the environmentally friendly energy sources

Bye bye!
HOMEWORK
Learn new words by heart.
Write a short description about what we should do to save energy.
Do Ex. E1 / p. 35 / workbook.
Be ready for LOOKING BACK AND PROJECT.
See You Again
THANK YOU FOR YOUR ATTENTION