Useful language: Nuclear power / Solar energy / Water power / Gas / Petroleum / Oil / Coal / Geothermal heat… FOR Enormous, plentiful, available Not spend a lot of money for treating it [r]
Trang 1Week 24 UNIT 11: SOURCES OF ENERGY
Period: 70 Lesson 2: Speaking
Date of teaching: Feb.8 th , 2011
Class: 11Cba, 11Cbo2, 11Cbo3
Objectives: By the end of the lesson, Ss will be able to:
- talk about advantages and disadvantages of energy
- express their own ideas about alternative source of energy
Language contents: Vocabulary
Teaching aids: Black board, textbook, poster
PROCEDURE
5’
6’
8’
I Warm up : Matching
Match some sources of energy with their definitions
Wood / Solar energy / Hydroelectric power /
Geothermal energy.
1……… is used to produce electricity
2……… is used to dry crops or lighting homes
3……….is produced from the heat stored in the
earth’s score
4 ………… is the first source of energy used by early
man
Suggested answer:
1 Hydroelectric power
2 Solar energy
3 Geothermal energy
4 Wood
Lead in: What do we need energy for?
Suggested answer:
We need energy to live and work; cook meals; heat,
light, cool our houses; make electricity, run
engines…Today, we discus advantages and
disadvantages of sources of energy
II Pre-Speaking :
1 Pre – teaching Vocabulary:
- radiátion (n) phóng xạ
- renéwable # nonrenéwable (adj) : có thể thay thế
- hydroelectrícity (n) thủy điện
- (to) harm làm hại
hármful (adj) có hại
* Checking Vocabulary: Slap the board
2 Task 1: Read and Stick:
- divides class into
2 groups
- gives the rules of game
- controls the game
- declares the winner
- introduces the lesson
- Follows the
presenting vocabulary
- checks
- runs through
- follow to T
- look at the poster
- play the game
- congratulate
- listen to T
- Listen & Repeat
- Copy
- check
- listen to T
Trang 2advantages) or D (for disadvantage)
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 is not blow, there is no wind
4 Water power provides energy without pollution
5 A nuclear reaction releases radiation which is
dangerous to our environment
6 Solar energy is not only plentiful and unlimited
but also clean and safe
7 It’s expensive to build a dam for hydroelectric
Answer Keys: 1D 2D 3D 4A 5D 6A 7D
III While- Speaking :
* Task 2:Talk with your friend about the advantages
and disadvantages of using each alternative sources of
energy, using the suggestions from Task 1
Example:
A: I think / I 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 are running out
while the wind is abundant and unlimited.
B: I know it is also clean and safe to the environment
However, it is not available when there is no wind.
Useful language:
Nuclear power / Solar energy / Water power / Gas /
Petroleum / Oil / Coal / Geothermal heat…
FOR
Enormous, plentiful, available
Not spend a lot of money for treating it
Never run out / unlimited / renewable
Good for environment, not cause pollution
Clean and safe
Convenient /Cheap /Simple devices / Technology…
AGAINST
Costly / limited
Do harm to people’s health, the environment and natural
habitat
Give out bad odor, produce an unpleasant smell
Dependent on weather (can not operate when there is no
wind / sunlight )
Harmful to environment / cause (air / water) pollution
in pairs and read the table, then stick
- checks and calls some ss say out theirs ideas
- gives feedback
- runs through
dialogue
- models and asks
ss to repeat
- gives the useful language
- asks ss to
underline words
conversation
- asks ss to practice
- Calls close pairs, open pairs
marks
and read the table, then stick
- say out the ideas
- take note
- listen to T
- look at the dialogue
- repeat after T
- take note
- substitute the underline words
to make the conversation
- work in pairs and practice
- speak in front
of class
- listen to T
Trang 31’
IV Post-Speaking:
* Task 3: Work in groups
Express your belief on the increasing use of alternative
sources in the future, using the ideas from Task 2
Example:
A: I believe that the use of solar energy should be the
alternative source of energy in our country
B: I agree with you It is the most feasible way to have
solar energy in our country because Vietnam is a
tropical country…
VI Homework :
- Practice the dialogue at home
- Prepare the next lesson (Listening-p.128)
- Runs through
- asks ss to work
in groups and express their ideas
- gets feedback from ss
- gives comments
- Asks
- listen
- work in groups
their ideas
- give feedback
- listen
- listen