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I. Warming-up
1. Do you know any kind of energy resources(Sources of energy)?
coal oil natural gas
wind ( wind power)
sun (solar energy)
water( hydro-electric power)
uranium(nuclear energy)
plant waste ( biomass energy)
the sea ( tidal energy)
hot springs ( geothermal energy)
2.What is fossil fuel?（give examples)
Oil from ancient animals
Coal from ancient plants(trees)
3. What is the effect of using such kinds of energy on our world?
The use of energy > Give off carbon dioxide, other waste gases and heat into the air
> The earth is becoming warmer and warmer. (global warming)
4. What is the greenhouse made and used for?
A greenhouse is made of glass and is used for growing plants, especially during cold weather.
5. How does it work?
The air inside is warm because the glass trapped the heat from the sun and keeps it from escaping This makes the greenhouse heat up and so the plants can grow throughout the cold period.
II. Reading
1. Skimming
What’s the style of the passage? A letter, an essay, a piece of news or a magazine article?
What is the name of the magazine? Who wrote the magazine article?
Skim the text and get the main idea. Match the main idea of each paragraph
2. Scanning
What are the names of the three scientists mentioned in the article?
What are their contributions or ideas?
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the name of the scientists
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Contributions or ideas
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Charles Keeling
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Dr Janice Foster
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George Hambley
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3 Read the text carefully and do True or False exercises.
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.
The scientists agree with each other about global warming.
4. Writing techniques
1. Raising a question （to introduce the topic） 2. Giving examples
3. using graphs 4. explanation 5. Giving examples, making contrast.
6. Using a question, leaving the readers to think over the issue.
5. In our daily life, we can do these things :
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 ℃.
V. Interview :
Do you often use plastic bags to store things in you daily life ?
Why do you use plastic bags ?
Free plastic bags have been banned since June 1,2008.
1. What do you think of this regulation?
2. What do you use to take the place of plastic bags when shopping?
3. What are the advantages of not using plastic bags?
Other possible questions.
VI. Debate
A : We shall do something about global warming.
B: We shall do nothing about global warming.
VII. Homework
Read the text carefully and do a survey about the issue of greenhouse gasses from the factories in your hometown and give possible solutions.
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