1.go through the 1 st paragraph and answer: (1)where is this text from? (2)who wrote this text? 2....
TRANSCRIPT
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1.Go through the 1st paragraph and answer:
(1)Where is this text from?
(2)Who wrote this text? 2. Skim the text and get the main idea.
A. When the “greenhouse effect” started
B. What causes the “greenhouse effect”
C. Dr. Janice Foster’s theory on the “greenhouse effect”
D.The fact that the earth is becoming warmer
and different theories about it.
Sophie Armstrong
A magzine named Earth Care
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Part one:
Part two:
Part three:
Part four:
Introduce a debate over the issue of global warming.
How global warming comes about.
No one knows what the effects of global warming will be.para.1
para. 2-5
para. 7
para. 6
Two different attitudes among scientists towards global warming.
Match the main idea of each paragraph
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• Para. 1• What’s the function of the question
“So how has this come about and does it matter?”?
• To introduce the topic.
main idea of each
part
writing
techniques(Paragraph
1)Introduce a debate over the issue of global warming.
raising a
question
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• Para. 2
• What’s the cause of global warming
according to Para. 2?
• What caused the increase in the
earth’s temperature?
• What is “greenhouse effect”? Is
“greenhouse effect” good or bad?
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main idea of each
part
writing
techniques(Paragraphs 2-
5)Illustrate how global warming comes
about.
Giving examples, using graphs, explanation.
What are the two graphs about?
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What are the two graphs about?Graph 1 shows the temperature increase of one degree Fahrenheit between 1860 to 2000.
Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.
Graph 1:
Graph 2: What are the graphs for?To illustrate points by providing evidence.
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• Para. 6• Good things global warming brings to
us:• 1. Make plants grow faster• 2. Crops will produce more• 3. Encourage a greater range of animals• What about bad things global warming
brings to us?• 1. A rise of several metres in the sea
level• 2. Severe storms, droughts, famines,
the spread of diseases and the destruction of species.
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(Paragraph
6) List two different attitudes among
scientists towards global warming.
Giving examples,
making contrast.
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main idea of each
part
writing
techniques(Paragraph 7 )
It’s up to readers to think and decide
whether people should do
something about global warming or
not.
Using a
question,
leaving readers
to think over
the issue.
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True or false?• The temperature in the last century
didn’t seem to increase much.• Everyone believes that global warming
is caused by the activities of humans.• Janice Foster believes she can
measure the future global rise in temperature.
• The rise in carbon dioxide is causing a steady increase in global warming.
• George Hambley believes that global warming will do good rather than harm to the earth.
• It is clear what the effects of global warming will be.
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• The author probably agrees that __. • A. Actually global warming is good
for man.• B. We should do nothing about the
global warming.• C. Catastrophes will happen if the
globe keeps on warming.• D. A lot remains to be found out
about the effects of global warming.
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What can we do about global warming?
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1.Who are the writers of the letters?Ouyang Guang and the editor of Earth Care.
2.What’s the purpose of Ouyang Guang’s letter?
To get some suggestions for what he can do about global warming.
Read Ouyang’s email and answer:
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3.What are Ouyang Guang’s two concerns? The first is that he feels that individual cannot have any effect on huge environmental problems. The second is that he is not sure where to start with his project.
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.
4.Which is not the reason why Ouyang Guang writes the letter?
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1.Does Earth Care agree with Ouyang Guang’s opinion that individuals can have no effect? No, Earth Care doesn’t agree.
Read Earth Care’s reply and answer:
2.What suggestions does Earth Care give him?Turn electrical appliances off when not
using them.Don’t turn up the heat, put on more clothes.Walk or ride a bike, don’t drive.Recycle.
Buy things made from recycled materials.Buy products that use less energy.
Plant trees.Talk with family and friends about global warming.
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3. List Earth Care’s suggestions and tell whether you think you can carry them out.
Earth Care’s suggestions Carry out
1. Turn electrical appliances off when not using them.
2.Don’t turn up the heat, put on more clothes.
3. Walk or ride a bike, don’t drive.
4.Recycle.
5. Buy things made from recycled materials.
6. Buy products that use less energy.
7. Plant trees.
8. Talk with family and friends about global warming.
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4.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.
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Translate the following words into English:
•图表图表•现象现象•燃料燃料•影响影响•灾难灾难•副产品副产品
•数据数据•气候气候•每每•陈述陈述•范围范围•干旱干旱
graphgraph
phenomenonphenomenon
fuelfuel perper
datadata
catastrophecatastrophe
climateclimate
consequenceconsequence statestate
rangerange
byproductbyproduct droughtdrought
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• 与与……比较比较•发生发生•大量的大量的•导致导致•增加增加•毫无疑问毫无疑问•继续继续•物种的灭绝物种的灭绝
compare tocompare to
come aboutcome abouthuge quantities ofhuge quantities ofresult inresult in
build upbuild upThere is no doubt that …There is no doubt that …
keep onkeep on
the destruction of speciesthe destruction of species
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•同意同意•由于由于•从。。吸收从。。吸收•往往往往•上升上升•反对反对•大范围大范围
subscribe tosubscribe to
Be due toBe due toTrap…fromTrap…from
Tend toTend to
go upgo up
Be opposed toBe opposed to
A great range ofA great range of
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Part 1. Listen and decided which statements does Professor Keeling NOT agree with?
1. We should stop depending on fossil fuels for our energy.
2. 90% of our energy comes from fossil fuels.
3. We can replace fossil fuels with cleaner sources of energy.
4. Nuclear power is a good source of energy.
Listening P31Fossil fuels and other forms of energy
AgreeAgree
AgreeAgree
DisagreeDisagree
DisagreeDisagree
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Part 1: Take notes of Julie’s answers.
Listening P62
Questions to Julie Her answers
What is Millennium Kids?
Who started it? When?
Why was it organized?
What play did they perform last
year?
What was the purpose of
performing the play?
to explain why
an organization by kids and for kids; concerned with the environmentfor students in Australia; in 1996
to draw attention to the environment
The Horse that Saved the World
it’s better for the environment if we walk to school, ride bikes or go by bus
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Methods of saving energy
Projects that Millennium Kids have
done
buy new electrical goods
1.
buy energy-saving goods
plant trees 2.
heat the house when it gets cold
stop using electrical
appliances
3.
turn off appliances when not using them
buy energy-saving goods
turn off appliances when not using them
planted trees
developed activities that reduce, reuse and recycle waste
planned ways to
reduce, recycle and
reuse plastic
bags.
Part 2: Ex. 3.
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300,000 volunteersThe fist Clean Up Australia
Day
1990
Facts about the eventEventYear
most common kinds of rubbish: cigarette butts, glass bottles and plastic bags
Clean Up Australia Day
2001
40,000 volunteers, collected old car bodies, plastics, glass bottles, cigarette butts
Clean-up Day for Sydney Harbour
1989
He was shocked at the pollution in the ocean.
Ian Kierman completed in a round-the-world yacht race
1987
Listening P65
Part 1:
How Ian Kierman__________________________
300,000 volunteersThe fist Clean Up Australia
Day most common kinds of rubbish: cigarette butts, glass bottles and plastic bags
40,000 volunteers, collected old car bodies, plastics, glass bottles, cigarette butts
Clean-up Day for Sydney Harbour
He was shocked at the pollution in the ocean.
Ian Kierman completed in a round-the-world yacht race
began Clean-up Australia Day
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Year Event Facts about the
event
the first Clean Up the World Day
30 million volunteers in 80 countries
Clean Up Australia Day
40 million volunteers in 128 countries; cleaned streets, beaches, river banks and parks
Listening P65
Part 2:Clean-up the World Day and Ian Kierman’s __________to improving the environmentYear
40 million volunteers in 128 countries; cleaned streets, beaches, river banks and parks
Clean Up Australia Day
2001
30 million volunteers in 80 countries
the first Clean Up the World Day
1993
contribution
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coal oil natural gas
wind (wind power)
sun (solar energy)
water (hydro-electric power)
uranium (nuclear energy)
plant waste
the sea (tidal energy)
hot springs (geothermal (地热的 ) energy)
Where does all this energy come from?
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2. Should we do anything about global warming?
1. Do you think the risks of global warming are great?
Debate
We should do
something about global
warming.
We should do nothing
about global warming.
Group A : Group B :
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What else should our government do to slow down global warming?
In our daily life, we can do these things :
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1. Give money to green the surroundings and protect the forests.
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2. Encourage people to find and use more renewable energy.
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rare plantsrare animals
3. Make laws to punish factories that produce too much CO2.
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1.Turn off the tap when cleaning your teeth.
2. Recycle paper and glass.
3. Walk or cycle everywhere.
4. Turn off the lights when your are not in the room.
5. Get something repaired rather than buy a new one.
6. Use both sides of a sheet of paper.
7. Try not to use one-time-use box/cup/chopsticks.
8. Take a bag with you when you go shopping.
9. Use rechargeable (可充电的 ) batteries.
10. Use products that save energy.
11. Let the air-condition remain 26 .℃
In our daily life, we can do these things :
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Interview: Have you ever used plastic bags to store something in your daily life ?
It is reported that plastic bags will not be given free of charge from June 1, 2008.
What will you use to take the place of plastic bags when shopping?
What are the advantages of not using plastic bags?
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Reading task p.66
Questions:
1. How many cigarettes are smoked in China each year?
2. How many butts are littered worldwide?
3. How long do you think they last in the environment?
4. What do butts contain?
5. Why do you think they are bad for the environment?
6. How many plastic bags are used in China each year?
7. How long do they last before they break down?
8. What are plastic bags made from?
9. Where do they end up?
10.What do you think the purpose of this essay is?
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1. How many cigarettes are smoked in China each year?
Over 1,600 billion cigarettes are smoked.
2. How many butts are littered worldwide?
About 4.5 trillion butts are littered.
3. What do butts contain?
They contain some very toxic chemicals.
4. How long do you think they last in the environment?
They take up to 5 years to break down.
5. Why do you think they are bad for the environment?
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6. How many plastic bags are used in China each year?
2 billion plastic bags are used every year.
7. How long do they last before they break down?
They last from 20 to 1000 years.
8. What are plastic bags made from?
They are made from oil and gas, non-renewable resources.
9.Where do they end up?
They float in air and water and travel long distance; they find their way to rivers, parks, beaches and oceans.
10.What do you think the purpose of this essay is?