Welcome to our class - 11A4
Look at the picture
What are they doing?
UNIT 11: SOURCES OF ENERGY
Reading
Windmill
Wind power
Solar panels
Solar energy
Water Power
Hydroelectric dam
Nuclear Power
Nuclear reactor
Geothermal heat
/,dʒi:əu`θə:məl hi:t/

1.What sources of energy do you
know?
2.What do we need energy for ?

ANSWER THE QUESTIONS
2. We need energy to cook meal,
to light, to heat, to run machines…..

They are: coal, gas, water, wind,
nuclear, geothermal heat…..
Let’s listen
Listen and then underline new words
reserve (n) /ri`zə:v/
to exhaust (v) /ig`zɔ:st/
alternative (adj) /ɔ:l`tə:nətiv/
to release (v) /ri`li:s/
Vocabulary
limited (adj) /`limitid/
source (n) /sɔ:s/
energy (n) /`enədʒi/
fossil fuel (n) /`f?sl fju?l/
nhiên liệu hóa thạch
sự dự trữ, vật dự trữ
làm cạn kiệt
thay thế
thả, phóng thích
có giới hạn
không giới hạn
nguồn
năng lượng
potential (n) /pə`ten∫l/
tiềm năng
‘infinite (adj) = unlimited
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
“LUCKY ANIMAL” GAME
next
What is our major source of energy ?
Our main source of energy comes from fossil fuels.
How many sources of energy are mentioned
in the text ? What are they ?
Six sources of energy are mentioned in the text. They are: fossil fuel, nuclear energy, geothermal heat, wind power, water power, solar energy.
Which source of energy do you think has
the most potential?
I think solar energy is the most potential

Lucky animal !
Post- reading
What can we do to save energy?
What can we do to
save energy?
Suggested:

leaving class/ room/ house…?
before sleeping
at home/ in class…
…………
( light/ water/ television/ motorbike
…………)


Homework:

1. Do the cloze test page 126 in the
students’ book.
2. Learn by heart new words.
3. Prepare Unit 11 . Part B : SPEAKING.


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