Giáo viên: Vũ Thanh Tùng
WARM-UP
PLAYING GAME
EXPLAIN THE WORD
WATER
GAS
ELECTRICITY
COAL
WIND
SUN
Unit 11
Tuesday, November 8th, 2011
Sources of Energy
B. SPEAKING

Which source of energy is the most popular in our country?
Is it limited or unlimited?
What should we do to be sure that we can continue to use it in the future?
Answer the following questions
Nuclear reactor
-radiation
non-renewable:
-reactor
-renewable
Vocabulary
phong phú
lò phản ứng
lò phản ứng hạt nhân
sự phóng xạ
có thể phục hồi
[ri:`æktə]
(n)
[,reidi`ei∫n]
(n):
-abundant
[ə`bʌndənt]
(a):
[ri`nju:əbl]
(a):
không thể phục hồi
(n):
#
CHECKING VOCABULARY
-reactor
Nuclear reactor
-radiation
-abundant
-renewable
# non-renewable:
[ri:`æktə]
(n)
[,reidi`ei∫n]
[ə`bʌndənt]
[ri`nju:əbl]
phong phú
lò phản ứng
lò phản ứng hạt nhân
sự phóng xạ
có thể phục hồi
không thể phục hồi
Task 1: Read the sentence in the box and tick if these facts are advantages and disadvantages:







Task 2: Work in pairs.
Talk with your friend about the advantages and disadvantages of using each alternative sources of energy , using the suggestions from Task 1.
Why do you think so?
I think that wind power can be an alternative source of energy.......
I think that…………..
Why do you think / believe so?
It is………….However,……………
Useful expressions:
Useful language:
enormous, plentiful, available dangerous
clean and safe expensive
unlimited, renewable polluted
convenient limited, non-renewable
cheap, simple devices/ technology harmful exhausted
A: I think that can be an alternative sources
of energy.
B: Why do you think so?
A: Because our major sources of energy are running out while

Example :
wind power
(1)
is abundant and unlimited. (2)
it is also clean and safe to the environment.
(3)
it is not available when there is no wind.
(4)
However,
B: I know
Make a conversation to express your belief on the increasing use of alternative sources in the future, using the ideas from Task 2.
Task 3: Work in groups
Student A: Give your suggestion of an alternative source of energy. (I think/believe that more and more people will use… as a source of energy in the future.)
Student B: Ask A for the reason. (Why do you think/believe so?)
Student A: Explain the reason. (Because it is unlimited…… .)
Student C: Say the disadvantage of that source. (But it is expensive and only available during…. .)
Student D: Express his own opinion. (I hope the progress of science and technology/ will help overcome this problem…. .)
Model:
I think/ more and more people / use solar power
1
2
4
3
5
Why/ think so?
because/ available, unlimited & easy to use
But /expensive and /specific time of the year
I hope that scientists will help/ overcome…
Cues:
I think more and more people use (solar power/ nuclear energy/ Geothermal heat/ wind power/ water power)
1
2
4
3
5
Why /think /believe so?
because/ available, unlimited & easy to use/ plentiful and infinite
But /expensive and /specific time of the year/ expensive to built a dam for hydroelectricity
I hope that scientists/the progress of science and technology will help overcome…
homework
Learn by heart new words
Write a short paragraph about the ways to save energy in your family
Prepare for the next lesson- C.LISTENING (page 128 - 129 )