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高中英语选修六 Unit 4 reading Global warming


Unit 4 Global Warming

Reading

a greenhouse
What is a greenhouse made of?
How does it work?

WINTER

?

trap heat, keep…from,

/>heat up

The earth is becoming warmer and warmer.

What causes the global warming?

gases in the atmosphere The greenhouse ____________________________ traps heat and warms the earth.

greenhouse gases
carbon dioxide

methane
water vapor

………

Graph reading (share in groups)

?The first graph shows the increase _______of temperature of the earth between 1860 and 2000. In this period, the fell temperature rose and _____. The temperature reached its lowest in highest 1915 and _______in 2000. However, on the whole, the temperature rose one degree Fahrenheit. It is about ____ obvious that the earth is becoming warmer _______.

Graph1

Graph 2

?It shows the content of carbon dioxide in the atmosphere from 1957 _______to 2000. The amount of increased carbon dioxide ________rapidly in this period, from 315 parts to per million. around 370 parts ____

Reading
The Earth is becoming warmer- But does it matter?
be important

Skimming

?How many paragraphs are there in the text?

Skimming the organization/layout of the article:

A title
Only the first paragraph runs across the page.

The main text is in 2 columns (栏).
magazine article most probably. It is a ________

Para1--Introduction Who: Sophie Armstrong Style: A A. expositive [ eks'p?z?t?v ] (说明的) B. argumentative [ɑ:gju'ment?t?v] (议论的) C. narrative['n?r?t?v ] (记叙的)

Read for details (Para 2-6)--Body Para 2-3 1.definition (定义) of greenhouse effect: 2.function of…: 3.problem: 4.cause(致因): Para 4-5: 1.Who made accurate measurements of the amount of carbon dioxide in the atmosphere? 2.How does Dr Janice Foster predict about the temperature over the next 100 years? Para 6: Attitudes:

Para 2-3 1.Definition: Greenhouse effect is a phenomenon that happens when small amounts of gases trap ____heat from the sun and warm _____the earth. 2.Function: Without greenhouse effect, the earth would be __________degrees Celsius cooler thirty-three than it is. 3.Problem: More heat tends to be trapped in the atmosphere causing the global temperature go up to ________.

How did it come about? 4.Cause: human activity ?It is _____________that has caused warming rather than a random but natural phenomenon. ?All scientists subscribe to the view that the increase is due to the burning of fossil fuels __________like coal, natural gas and oil to produce energy.

Para 4-5 1. Who made accurate measurements of the amount of carbon dioxide in the atmosphere? It was Charles Keelings who … 2. How does Dr Janice Foster predict about the temperature over the next 100 years? as low as 1 to 1.5 degrees Celsius as high as 5 degrees Does it matter?

Para 6 The

attitudes of scientists towards this rise different are completely ______________. Lead to a catastrophe _________ It is a positive ______ thing. 1.the rise in the sea levelbe opposed to 2.severe storms 1.plants grow quicker 3.floods 2.crops produce more 4.droughts 3.encourage a greater 5.famines range of animals 6.the spread of diseases 7.the disappearance of ---make human’s life better species

Para 7--conclusion

?What questions did the author put forward?

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.

Para 7--conclusion ?What is your attitude towards? Should we do nothing?

What can we do in the following situations? ?1. The lights are on. But we don’t want to use them. ?2. If we want to buy a car, what kind of car do we choose? ?3. If our parents’ company is not far from our home, but they drive a car to work. What should we do? ?4. What can we do on Tree Planting Day? ? It is our action that makes a difference!


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