(共40张PPT)
Do you know anything that use energy
Make a list of the things that consume energy in your home.
air conditioner
microwave
hairdryer
rice cooker
kitchen ventilator
List the things that consume energy in our daily life.
In the school
In the house
What do we call them
Electrical appliances
Do you know any kind of energy resource
Are those kinds of energy renewable or non-renewable
coal
oil
natural gas
Uranium
wind (wind power)
sun (solar energy)
water (hydro-electric power)
plant waste (biomass energy)
hot springs or geysers (geothermal energy)
the sea (tidal energy)
non-renewable
renewable
fossil fuels
What are fossil fuels
Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal, oil and natural gas, which can be burnt to produce energy. Also known as non-renewable energy because once they are used they have gone forever; they cannot be renewed.
Read Exercise 1 together: Read the statements below and tick the ones you agree with.
Pre-listening
Listening
Listen to the tape and answer and decide which statement Professor Chen does NOT agree with.
1. We'll have to stop using fossil fuels.
2. About 90% of the world's energy
comes from fossil fuels.
3. We can replace fossil fuels with renewable sources of energy.
Agree
Agree
Disagree
4. Nuclear power is a good source of energy.
5. In the future, we'll need new technologies to replace fossil fuels.
Agree
Agree
Listen again and tick the phrases that Professor Chen uses to agree or disagree with Li Bin.
Exactly. I’m afraid I disagree with you.
That’s true. I’m afraid not.
That’s right. I don’t think so.
That’s correct. No way.
I agree. I don’t agree.
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Listen to part 2 again and fill in the blanks.
LI BIN: …What about _______ They don’t cut down on their use of ______.
energy
factories
KEELING: No, they don’t. However, that is a _______ we must work on as a ______ community. That means ________ and _________ countries will have to work together.
problem
global
developed
developing
LI BIN: But it’s not the _________ countries that put most of the carbon_______ into the air. The developed countries are really the ones to ______.
developing
dioxide
blame
Note: The USA is the largest energy user
in the world and the largest producer of
the greenhouse gas carbon dioxide.
China comes second in both of these.
Listening text
China has been going through huge economic development, and has had as much growth in one decade as the industrial world experienced in nearly a century. However, it has been at a high cost to the environment.
FOSSIL FUELS AND OTHER
FORMS OF ENERGY
(L = Li Bin K = Keeling)
Li Bin, a university student, is interviewing Professor Keeling on the local student radio station about the use of fossil fuels and other sources of energy.
Part 1
L: Professor Keeling, I've read that we
must stop using fossil fuels if we want
to reduce the amount of carbon
dioxide in the air.
K: Yes, that's right, Li Bin. However
it’s difficult.
Our modern industrial societies depend
on the energy we get from fossil fuels.
It's a very cheap and concentrated form
of energy.
L: Is it true that about 90% of
the world's energy comes from fossil
fuels
K: Yes, that's correct. And there
is enough to last for centuries.
L: Could we replace fossil fuels with
clear sources of energy like sun or
wind power
K: I'm afraid not. We just can’t produce
enough. You need huge areas of land to
produce enough wind energy. The
technology we have at present cannot
provide enough sun energy.
L: So what about nuclear power
That doesn’t produce carbon dioxide.
K: True, but it’s very dangerous. Remember the accident at Chernobyl. People are still dying of the radiation that was produced by THAT disaster!
Part 2
L: So what CAN we do
K: Well, there are three things. First we
must find ways of using fossil fuels that
won’t put carbon dioxide into the air.
Second, we must produce products that
are economical with energy. Third, we
must ask people to cut down on the
energy they use.
L: But that’s on a personal level. What
about factories They don’t cut down cut
down their use of energy.
K: No, they don’t. However, that is a
problem we must work on as a global
community. That means developed and
developing countries will have to work
together.
L: But it’s not the developing countries
that put most of the carbon dioxide into
the air. The developed countries are
really the ones to blame.
K: That’s true. So we must work
together because global warming will
affect everyone. If we want the future
generations to have a good life, we must
ALL look after the planet.
5 . Now read again what Professor Keeling and Li Bin say. Then in groups discuss who you agree with and give reasons. Use some of the phrases listed below or any others you know.
AGREEMENT
Exactly.
That’s true. You’re right. That’s right. That’s correct.
I agree.
DISAGREEMENT
I’m afraid I disagree with you.
I’m afraid not.
No, I don’t agree.
I don’t think so.
No way.
I doubt ....
Review the new words and expressions you learned in this class.
Homework(共44张PPT)
Habitats shrinking
Lack of food
I got slimmer because of lack of food.
They even got drowned!
Could you find out the differences in these couples pictures
The ice is disappearing, as well as the river!
Imagine one day we will get such dry-up river. What is worse, it is that we are having it now!
What should be to blame for all these problems
The global warming
Will it happen in the future
The earth is getting a severe fever now!
What should we do
What can we do about global warming
Scan the passage and answer:
1.Who are the writers of the letters
A. He is doing a project on global warming. B. He feels individuals can affect huge environmental problems. C. He isn’t sure where to start with his project. D. He wants to get some suggestions from Earth Care.
Ouyang Guang and the editor of Earth Care
2.Which is not the reason why Ouyang Guang writes the letter
3. Which is not true according to the editor’s letter
A. Together, individuals can make a difference to environmental problems. B. Individuals must put up with pollution. C. Many activities individuals do can produce carbon dioxide. D. Individuals can save energy to slow down global warming.
put up with: accept sb/sth that is unpleasant 忍受,容忍
put up with, stress of study
4. List Earth Care’s suggestions and tell whether you think you can carry them out.
Earth Care’s suggestions Carry out
1.Turn_________________off if not using them.
2._________________ instead of turning up the heat.
Walk or ride a bike if you can.
4.Recycle cans,bottles,plastics and buy things made from_______________.
Buy products that_____________________.
Plant more trees.
7.Talk with __________________ about global warming.
electrical appliances
Put on more clothes
recycled materials
your family and friends
5.
3.
6.
are economical with energy
What else should our government do to slow down global warming
1.Give money to green the surroundings and protect the forests.
2.Encourage people to find and use more renewable energy.
3.Make laws to protect rare plants and animals .
green the surroundings
use renewable energy
rare plants
rare animals
With the help of your dictionary ,finish the following exercises.
It would be more _____ to buy a small car, for it can save energy.
economical B. economic
C. economically D. financial
2. It’s the thought that counts. (Choose the synonym of the underlined word)
commits B. matters
C. advocates D. refreshesModule 6 Unit 4 Global warming
Warming up
things that use energy sources of energy renewable / non-renewable
lights television cassette player computerfridge stove washing machine hairdryer video recorder
Pre-reading
1. What is the greenhouse made and used for
2. What’re greenhouse gases
3. What will the global warming cause
Fast-reading
Task I. Glance quickly at the magazine article and answer the questions.
1. What are the two graphs about
2. What are the names of the three scientists mentioned in the article
3. What is the main topic of the article
Careful-reading
Task I. Divide the text into 4 parts and find out the main idea of each part.
Main ideas Writing techniques
Part 1:
Part 2:
Part 3:
Part 4:
Task II Questions for each part
Part1:
1. Who wrote the magazine article What is the name of the magazine
2. What rose about one degree Fahrenheit
Part2. How has the global warming come about
Part3. 1. What are the effects of global warming
2. The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster George Hambley
Task III. True or false
1. The temperature last century didn’t increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that global warming is caused by burning fossil fuels.
4. Natural gas is a greenhouse gas.
5. Carbon dioxide is a byproduct of burning fossil fuels.
6. People accept Charles Keeling’s data because he took accurate measurements.
7. Flooding could be one of the effects of future global warming.
8. George Hambley believes scientists are just guessing about the effects of global
warming.
9. George Hambley is worried about the effects of carbon dioxide on plant growth.
10. It is clear what the effects of global warming will be.
Post-reading
What should we do about the terrible effects of global warming Module 6 Unit 4 Global warming
Warming up
things that use energy sources of energy renewable / non-renewable
lights television cassette player computerfridge stove washing machine hairdryer video recorder coal oil non-renewable
natural gas non-renewable
wind (power) renewable
sun (solar energy) renewable
the sea (tidal energy) renewable
water (hydro-electric power) renewable
uranium (nuclear energy) non-renewable
plant waster (biomass energy) renewable
Pre-reading
1. What is the greenhouse made and used for
A greenhouse is made of glass and is used for growing plants, especially during cold weather.
2. What’re greenhouse gases
In the atmosphere surrounding the earth there are gases called “greenhouse gases”.
3. What will the global warming cause
The rising temperatures, the glaciers of the Poles to melt, the sea level to rise, the climate anomaly and frequent occurrence of natural disasters(such as tsunami, tornado, hurricane, drought…), land desertification, soil erosion, decline in the species diversity, the increase of insects and diseases…
Fast-reading
Task I. Glance quickly at the magazine article and answer the questions.
1. What are the two graphs about
Graph 1 shows the temperature increase of one degree Fahrenheit from 1860 to 2000.
Graph 2 is about the carbon dioxide content in the atmosphere from 1957 to 1997.
2. What are the names of the three scientists mentioned in the article
They are Dr. Janice Foster, Charles Keeling and George Hambley.
3. What is the main topic of the article
Global warming / The warming of the earth.
Careful-reading
Task I. Divide the text into 4 parts and find out the main idea of each part.
Main ideas Writing techniques
Part 1: __An introduction_ Raising a question
Part 2: how global warming comes about Giving examples, using graphs, explanation
Part 3: two different attitudes among scientists towards global warming giving examples,making contrast
Part 4: whether people should do something about global warming or not. Using a question, leaving readers to think over the issue
Task II Questions for each part
Part1:
1. Who wrote the magazine article What is the name of the magazine Sophie Armstrong of “Earth care”.
2. What rose about one degree Fahrenheit The temperature of the earth
Part2. How has the global warming come about
① human activity② the burning of fossil fuels
Part3. 1. What are the effects of global warming
a rise in the sea level; Severe storms, droughts, famines, the spread of diseases, and the disappearance of species; Make plants grow faster
2. The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster George Hambley
Carbon dioxide has caused the global temperature to go up. An increase of five degrees would be a catastrophe and could be very serious. More carbon dioxide is a positive thing,which makes crops produce more and will encourage a greater range of animals.
Task III. True or false
1. The temperature last century didn’t increase much. (F)
2. Everyone believes that global warming is caused by the activities of humans. (T)
3. Janice Foster believes that global warming is caused by burning fossil fuels. (T)
4. Natural gas is a greenhouse gas. ( F)
5. Carbon dioxide is a byproduct of burning fossil fuels. (T )
6. People accept Charles Keeling’s data because he took accurate measurements. (T )
7. Flooding could be one of the effects of future global warming. (T )
8. George Hambley believes scientists are just guessing about the effects of global
warming. (T)
9. George Hambley is worried about the effects of carbon dioxide on plant growth. ( F)
10. It is clear what the effects of global warming will be. ( F)
Post-reading
What should we do about the terrible effects of global warming (共43张PPT)
Unit 4
Global Warming
the United Nations Climate Change Conference In Copenhagen
hammer out a new agreement to curb global warming and cut greenhouse gas emissions.
global warming
greenhouse gas
What is greenhouse
What is greenhouse effect What is greenhouse gases
How does greenhouse work
greenhouse
What is the greenhouse made and used for
A greenhouse is made of _____ and is used for __________, especially during cold weather.
glass
growing plants
What’s greenhouse gases
In the atmosphere surrounding the earth there are gases called “greenhouse gases”.
greenhouse effect
What are the effects and disasters of global warming
The glaciers of the Poles are starting to melt due to the increasing temperatures caused by global warming. What’s worse ,the glaciers(冰川） of the South Pole are beginning to crack（破裂）
The rising temperatures
The sea level to rise.
It has also led to the anomaly climate and frequent occurrence of natural disasters .
tsunami
tornados
droughts
Severe storms
It has also led to….
land desertification,
soil erosion,
decline in the species diversity
The increase of insects and diseases
…….
Do you believe that if we continue acting like this, the earth will soon come to an end
The Earth is becoming Warmer
Does it Matter
Glance quickly at the magazine article and answer the questions.
Sophie Armstrong wrote the magazine article. The name of the magazine is “Earth care”.
2.What are the names of the three scientists mentioned in the article
They are Dr.Janice Foster,Charles Keeling and George Hambley.
1.Who wrote the magazine article What is the name of the magazine
3.What are the two graphs about
Graph 1 shows the temperature increase of one degree Fahrenheit from 1860 to 2000.
4.What is the main topic of the article
Global warming / The warming of the earth.
Graph 2 is about the carbon dioxide content in the atmosphere from 1957 to 1997.
True or false
Read the article carefully and finish Part 2 on Page 27
1.The temperature last century didn’t increase much. ( )
2.Everyone believes that global warming is caused by the activities of humans. ( )
3.Janice Foster believes that global warming is caused by burning fossil fuels. ( )
4.Natural gas is a greenhouse gas. ( )
5.Carbon dioxide is a byproduct of burning fossil fuels. ( )
F
F
T
F
T
6.People accept Charles Keeling’ s data because he took accurate measurements. ( )
7.Flooding could be one of the effects of future global warming. ( )
8.George Hambley believes scientists are just guessing about the effects of global warming. ( )
9.George Hambley is worried about the effects of carbon dioxide on plant growth. ( )
10.It is clear what the effects of global warming will be. ( )
T
T
T
F
F
1.Read the text again and try to get the main idea of the article.
Part (Para_ to Para_ ) Main idea
Part 1
(Para _____ )
introduce a _____ over the issue of global warming
Part 2
(Para ___to___)
illustrate how ____________ comes about
Part 3
(Para ___ to ___)
list ____________________ among scientists towards global warming
Part 4
(Para ___ to ___) It’s up to readers to think and decide_____________________________________________________
1
2
4
5
10
11
debate
global warming
two different attitudes
whether people should do something about global warming or not.
Questions
How has the global warming come about
①Human activity--- burning of fossil fuels.
② Greenhouse effect--- greenhouse gases--- we need those gases.
③ We add huge quantities of extra carbon dioxide to the atmosphere by burning Fossil fuels.
The carbon dioxide content of the atmosphere went up from around 315 parts per million to around 370 parts per million from 1957 to 1997 (See Graph 2 on Page 26 )
The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster George Hambley
Carbon dioxide has caused the global temperature to __________. An increase of five degrees would be a ____________ and could be ______________. More carbon dioxide is a __________ thing,
which makes crops ____________ and will encourage ____________________________.
go up
catastrophe
very serious
positive
produce more
a greater range of animals
Of the two ideas, which are you in favor of
The Dr Janice Foster’s.
Why
Because we have witnessed a large number of disasters predicted by some people.
What should we do about the terrible effects of global warming
.
.
Try to reduce the use of motor vehicles
electric vehicle
bike
running
Solar energy car
Planting trees
Cleaning the rubbish
×
×
×
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Return the green world to us
Assignment
1. Write an argumentation titled “Environment Protection ”based on the viewpoints in the text and yours.
2. Preview the language points in the text and find out your difficult points
Let’s make this world a better place to live !
