Unit 11 Sources of energy

WELCOME TO OUR CLASS



Look at the
following
pictures and
answer the
question?


Wind power

1

Nuclear power

2

Do
What
weuse
do
for?
need
people
energy
inthose
ourenergy.
daily
things

life?
for?Geothermal heat
They
them
touse
make
Solar energy
Water power

3

4

5


cooking

washing

What do you need energy for?
We need energy for every daily activities.
lightning

heating
running machines

In our house, we use energy for ......

A.Reading



fuels
Oil, petrol, coal and gas are fossil
..................

1. fossil fuel ['fɔsl] [fjuəl] nhiên liệu hoá thạch


2. geothermal heat [dʒi:ou'θə:məl hi:t] địa nhiệt


3. alternative (adj) that can be used instead
[ɔ:l'tə:nətiv]
of something else
có thể thay thế
4. plentiful (adj) ['plentifəl] nhiều


5. exhaust (v) [ig'zɔ:st]
run out of
sử dụng cạn kiệt
6. reserve (n) [ri'zə:v]= storage(n) sự dự trữ
7. release (v) [ri'li:s] = discharge(v) thải ra
8. infinite (adj) = unlimited (adj)
['infinit]
≠ limited
vô hạn

What can you see in the pictures?
wind energy

1

Windmill(n)cối xay gió

solar energy

2

solar panels(n)

What source of energy does each picture above refer to?
nuclear power

nuclear reactors(n) lò
phản ứng hạt nhân

3

water power

4

hydroelectric dam
[haidroui'lektrik] đập thủy điện

I. VOCABULARY
1. fossil fuels ['fɔsl] [fjuəl] nhiên liệu hoá thạch
2. geothermal heat [dʒi:ou'θə:məl hi:t] địa nhiệt

3. alternative (adj)[ɔ:l'tə:nətiv] có thể thay thế
4. plentiful (adj) ['plentifəl] nhiều
5. exhaust (v) [ig'zɔ:st]
sử dụng cạn kiệt
6. reserve (n) [ri'zə:v] sự dự trữ
7. release (v) [ri'li:s] thải ra
8. infinite (adj)['infinit]
vô hạn


Fill each blank with a suitable word.
alternative limited energy released exhausted
released at the ceremony.
1.Six hundred balloons were_______

2.They are looking for alternative
________methods of making it
energy
3.People use __________to
run machines, heat and
cool their homes.

4. The food in the restaurant is cheap, but the choice is
limited
rather_______

5. Fuel supplies are nearly___________
exhausted


II. Task 1/ page 126
Scan the passage and write
down the advantage(s)
and disadvantage(s) of
each alternative source of
energy.


II. TASK 1: Scan the passage and write down the advantage(s) and
disadvantage(s) of each alternative source of energy.
Sources of energy
Nuclear power
Solar energy
Water power

Advantage(s)
It’s unlimited.
It’s not only plentiful
and infinite but also
clean and safe.
It’s clean and unlimited.

Disadvantage(s)
It can be very
dangerous.
It’s only possible

during the day time.
It’s expensive.

Wind power

It’s clean and unlimited. There’s no wind energy
when there is no wind.

Geothermal heat

It’s available.

It’s available only in
a few places.


Unlimited
Very dangerous.

Nuclear power


Plentiful , infinite, clean and safe.
Produced only in daytime

Solar energy


Clean and safe
Water power

Must build dams , so expensive


Clean and unlimited
Wind power

Not available when there is
no wind