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• What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases called “greenhouse gases”, including carbon dioxide, methane (甲烷, 沼气) and water vapor.
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Main ideas of each Writing techniques part
(Paragraph 1) Introduce a debate Raising a question over the issue of global warming.
renewable
stove
plant waste
renewable
(biomass energy)
washing machine
hot springs or geysers (geothermal energy)
renewable
hairdryer
the sea (tidal
energy) ___________________________ _______________________
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Main ideas of each part
Writing techniques
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From the following pictures, you will know where all this energy comes from.
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• What do you think greenhouse gases do? They trap the heat of the sun and keep the air surrounding the earth warm.
• How does it work? The air inside is warm because the
glass traps 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.
renewable
video recorder
computer
sun (solar energy)
renewable
uranium
(nuclear
energy)
___________________________ _______________________
nonrenewable
fridge water (hydroelectric)
solar panels hydro-electric dam
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Sample lists
Things that Sources of Renewable / use energy energy non-renewable
windmills a coal power station
___________________________ _________ห้องสมุดไป่ตู้_____________
an oil refinery
a nuclear power plant
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renewable
Renewable or non-renewable?
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Renewable or non-renewable?
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A greenhouse is made of glass and is used for growing plants, especially during cold weather.
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What is told in the picture?
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What is the greenhouse made and used for?
light
coal non-renewable
heating oil non-renewable
___________________________ _______________________
television natural gas
nonrenewable
cassette wind (wind player power)