(共28张PPT)
Module1 Environment and life
Unit 1 Saving the Earth
The green consumer
Disaster—The Day After Tomorrow
A quiz about colour
Guess the meaning of each phrase.
1) He was still too yellow to stand up and fight even though he was laughed at.
A. weak in mind, scared
B. strong in mind
C. wear the yellow shirt
2) It was blue Monday and he just didn't feel like going back to work.
A. sunny
B. hot
C. making people upset and unhappy
A quiz about colour
Guess the meaning of each phrase.
3)Sometimes it’s better to tell a white lie than to tell someone a painful truth.
C. harmless, kind
A. hateful
B. told by white people
A quiz about colour
Guess the meaning of each phrase.
4)He was thought to be the black sheep of the family after he had got involved in the bank robbery.
A. a kind of sheep
B. an unworthy, useless person
C. a sheepherder
A quiz about colour
Guess the meaning of each phrase.
5)You cannot expect Mary to do business with such people, she is only eighteen and as green as grass.
C. inexperienced, simple and pure
A. liking to wear green dress
B. stupid
A quiz about colour
Guess the meaning of each phrase.
When I told you to become green, Lo, I didn’t mean …
Read the cartoon and answer the questions.
green
=environmentally friendly
green goods
green energy
/ n va r n'ment l 'frendl /
buy goods
buy goods
use energy
use energy
When I told you to become green, Lo, I didn’t mean …
Read the cartoon and answer the questions.
green
=environmentally friendly
green goods
green energy
consumer
/k n'sju:m (r)/ n.
a person who buys or uses sth.
consumer
. Look at the title, the first paragraph, the headings and the pictures.
1 What type of reading passage is it
a. A poster about the Earth Day.
b. A book review.
c. An introduction about a book.
.
2 This book is called a guide. What does the book mainly tell us about
a. how to be green consumers
b. the threats on the Earth
c. how to save the forests
3 What will the threats probably be in the book
a. the environmental problems
b. the economic problems
c. the population problems
. Choose the right choice.
Match the headings to the right pictures.
1 The greenhouse effect ____
2 Damage to the ozone layer ____
3 Destruction of the forests ____
4 Bad habits ____
5 How can we save the Earth ____
a
b
c
d
e
b
a
c
e
d
/‘ɡri:nha s/ n. 温室
/‘ z n ‘le (r)/
/d 'str k n/ n.
The greenhouse effect
Destruction of the forests
Bad habits
How can we save the Earth
Damage to the ozone layer
What do you know about each threat
What do you want to know about the threats
Brainstorm.
Read the first part. Answer.
What’s the use of the glass of a greenhouse
1 The atmosphere acts like the glass boards of a real greenhouse.
4 Carbon dioxide is the only cause of the greenhouse effect.
3 The surface of the moon is cold and lifeless because there is no atmosphere around it.
5 The greenhouse effect is not a dangerous threat according to the passage.
Read the first part. Tell true or false. Correct the mistakes.
2 The atmosphere is not essential for plants.
the Earth
essential for all the living things
main
F
F
T
F
F
/‘ tm sf (r)/ n.大气
/kɑ:b n da ' ksa d/ CO2
/'s :f s/ n.
Read the first part again. Choose the right words to fill in the blanks.
The atmosphere around the Earth acts like the glass of a (1)__________. The atmosphere lets sunlight in and keeps (2)_______ from getting out. Without the atmosphere, the Earth would be as cold and (3)_______ as the surface of the moon.
However, pollution from burning carbon-based fuels like petrol, oil, coal and wood makes the greenhouse effect (4)____________. As the atmosphere is becoming (5)_______, the Earth would keep in too much heat .It may cause the sea level (6)_____ and (7)_______ cities and even whole countries.
A. warmth
B. flood
C. rise
D. thick
E. more serious
F. fall
G. lifeless
H. greenhouse
fuel /'fju: l/ n.
Fuels are burnt to produce heat and power.
Read the second plete the illustration.
The ozone occurs (1)_____ to (2)_____ km above the ground.
It forms a(3)____________ layer that prevents the Sun from (4)________________.
This is a (5)________ in the layer which is mainly caused by (6)_______. They are used in (7)_________ and spray cans, and to make plastic items like (8)_________________.
20
50
protective
burning us up
hole
fridges
fast food boxes
exist, be found
/'spre k n/
/ 'k :(r)/ v.
Damage to the ozone layer
CFCs
The ozone layer is a protective layer –
-in the form of gas-above the ground.
CFC- a type of gas harmful to the ozone layer.
2 What is the ozone layer
1 Where can CFCs be used
3 What can we do to protect the ozone layer
In fridges, spray cans and plastic items.
Read the second part again. Answer the questions.
Destruction of the forests
cause
results
reason
Read the third plete the chart.
the burning and cutting down
soil erosion
flooding
_______________________worse
make the greenhouse effect
____________
destroying the homes
Because trees ____________.
________________________of the forests
/s l 'r n/ n.
takes in CO2
______________________ of people and animals that live in the forest
Think about the question.
Why is the destruction of the forests making the greenhouse effect worse
1 Trees take in CO2
A and lets out O2
2 if there are more trees,
D the amount of CO2 will be smaller.
3 However, forest are burnt and cut down,
E so less CO2 is absorbed(吸收) by trees.
4 Moreover, more CO2 is produces by burning fuels,
F there are more harmful gases in the atmosphere.
5 the atmosphere is changing
B and keeping in too much heat.
6 The ice at the North and South Poles will melt,
C and the sea level will rise and cause danger.
So the destruction of the forests is making the greenhouse effect worse.
C
B
A
D
F
E
Match the two halves together.
Why is the destruction of the forests making the greenhouse effect worse
Guess the main idea of part four.
Bad habits
Guess: What is the bad habit in Part four
disposable chopsticks
/d ’sp z bl/
Many of our habits cause pollution, especially our habit of using things once and then (1)________ them ______. This creates massive (2)________ ____rubbish. We do not know what to (3)_____ _____the rubbish and it pollutes our land and sea. For example, people throw away as many as seven billion drink cans in Britain each year. That is enough to (4)_____ ______the Earth to the moon.
Listen to the fourth plete the passage with proper words.
throwing
away
mountains
of
do
with
reach
from
huge, very big
/'m s v/ adj.
/‘b lj n/ n. 十亿
Bad habits
1 What does the word “disposable” probably mean
2 What habit is the most serious to the environment
3 What are the results of this bad habit
4 Have we solved the problem of rubbish
5 Why did the writers give the example of the British throwing away 7 billion drink cans every year
Read the fourth part again. Think about these questions.
It probably means throw-away or one-use.
The habit of using things once and then throwing them away.
It creates massive mountains of rubbish.
It pollutes our land and sea.
No, we haven’t.
Read the last part. Think about the key words and discuss with groupmates.
environmentally friendly goods
green consumer
Keyword One:________________________
Keyword Two:________________________
What is…
How to …
Changes must-be-done:
●________________________________
●________________________________
●________________________________
●________________________________
●________________________________
Book list
Greening Your Home
Green Goes with Everything
Green—Finding the Key is just the beginning
A World that is Turning Green
Workbook, pages 1, 9 and 10.
Textbook , pages 4 and 5.
. consolidation.
Thank you for your time!