Unit 11:
SOURCES OF ENERGY
Lesson 1: Reading
What source of energy does each picture about refer to?
wind
water
nuclear
solar
Before you read
Work with a partner . Answer the following questions
1.What source of energy does each picture above refer to ?
2.What do you need energy for ?
They are wind, nuclear, water and solar energy
We need energy for providing electricity.
Task 1: The words in the box all appear in the passage.
Fill each blank with a suitable word.(Use a dictionary when necessary)
alternative
limited
energy
released
exhausted
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_________________ .
Task 2: Scan the passage and write down the advantage(s)
and disadvantage(s)of each alternative source of energy
Unlimited
Very dangerous.
Plentiful , infinite, clean and safe.
Produced only in daytime
Clean and safe
Must build dams , so expensive
Clean and unlimited
Available only in a few places.
Task 2: Scan the passage and write down the advantage(s)
and disadvantage(s)of each alternative source of energy
Task 3: Answer the question.
1.What is our major source of energy ?
2.How many sources of energy are mentioned in the text,
and which one do you think has the most potential ?
Our major source of energy comes from fossil fuels.
Five sources of energy are mentioned in the text : nuclear
energy , solar energy , water , wind and geothermal heat .
I think solar energy is the most potential.
After you read: Complete the summary of the reading passage by filling each blank with a suitable word from the box
We need energy to live and work.Our nature 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 fine new source of energy. Geothermal heat and nuclear power are (5)__________ source of energy. They can give us electricity. Other alternative (6) _______ are the sun, waves and water. These source are not only (7)________ and available but also clean and save for the (8)_________ . People should develope and use them more and more in the future.
one
environment
alternative
limited
unlimited
sources
energy
fuels

- Prepare speaking.
- List some advantages
and disadvantages of
various sources of
energy
Homework:
Thank you for your attention!