UNIT 11 SOURCES OF ENERGY
PART B: Speaking
I. OBJECTIVES:
Aims:
- Getting students to give reasons the of using alternative sources of
energy and talk about the advantages and disadvantages of
alternative sources of energy.
Vocabulary: abundant, enormous, plentiful, renewable, convenient,
polluted, limited, non-renewable, exhausted
Expressions : I think/believe that …
Why do you think so?
I know it is …. However, it is …
Teaching aids: some pictures about the alternative sources of energy
II.PROCEDURE T

Contents T & S’activities
I). WARM UP: (5 minutes)
.1. Can you tell me some sources of
energy?
2. Which source of energy is the most
popular in Vietnam? Is it clean or
polluted? Is it limited or unlimited? Is it
safe or dangerous?
*Suggested answers
1. fossil fuels, solar energy, wind
energy, water energy, …
2. Fossil fuels are perhaps the most
popular. This kind of energy is polluted

5. Nuclear energy Picture
C : Fossil fuel (oil)

4. Fossil fuel (coal)
6. Water gy ener
Picture D : Water energy

Picture E : Fossil fuel (coal)
7. Fossil fuel (oil)
Picture
on the board or shows
them on the projector. Ask
students to match the
following words with each
picture: Students may discuss the
pictures with their partners
before giving answers
 wind energy

Picture B
F : Geothermal energy
Picture G :
Nuclear energ
Picture A:

Teacher has students work
in pairs reading the
information in the table
and then discussing the
advantages and
disadvantages. After that,
have some pairs report
their work in front of the
class. The teacher gives
comments if necessary

Students work in pairs and
then report their answers
For advantages) Or D( for
disadvantages ) then compare the result
with a partner’s
.1. Fossil fuels will be exhausted within
a relatively short time.
2. Geothermal heat is available only
in a few places in the world.
3. If the wind does not blow, there is
no wind energy.
4. Water power provides energy
without pollution.
5. A nuclear reactor releases
radiation which is dangerous to the
environment.

*Useful language
Enormous Dangerous
Plentiful Polluted
Available Exhausted
Unlimited Limited
Renewable Non-renewable
Convenient Unsafe  Students practice in
pairs:

.
Model:
A. I think / believe that wind power can
be an alternative source of energy.
B. Why do you think / believe so?
A. Because our major sources of energy

electricity for the world’s needs for
hundreds of years. However, a nuclear
reactor releases radiation which is
dangerous to the environment A. I believe that solar energy can be an
alternative source of energy.
B. Why do you believe so?
A. Because our major sources of energy
are running out while the sun releases
large amount of energy every day .
B. I know it is not only plentiful and
infinitive but also clean and safe.
However, it is only possible during the
day time.
report on which source
they think is the most
potential. Then ask the
representative of some
groups to report to the
class. Give comments and
correct mistakes where
easy to use.
C: But it’s expensive and we can only
have it at specific time of the year.
A: I hope that the progress of science
and technology will help to overcome
this problem.
B: That’s right and then we don’t have
to worry about the shortage of energy.
C: And our life will be more
comfortable with cheap simple devices
run on the solar energy.

I think that …
I believe that …
Why do you think so?
I know it is …. However, it is …

necessary
Task 3:Express your belief on the
increasing use of alternative sources in
the future , Using the ideas from Task 2
.IV). POST SPEAKING: (5 minutes)
 Teacher has each students write a