人教版 英语选修6第四单元reading1

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Unit 4

Global warmingReading

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Pre-reading

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1. Have you ever seen a greenhouse?

is made of glass

used for growing plants, especially during cold weather.

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2. How does the greenhouse work?

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The air inside was warm because the glass traps(挡住 吸收 the heat from the 挡住, 挡住 吸收) sun and keeps it from escaping(逃跑 逃跑). 逃跑 This makes the greenhouse heat up(热量 热量 上升) 上升 and so the plants can grow throughout(在…期间 the cold period. 在 期间 期间)

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4. Greenhouse EffectGreenhouse gases trapped the heat from the sun, which causes the temperature of earth goes up.

Global warming

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ReadingTHE EARTH IS BECOMING WARMER BUT DOES IT MATTER?

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Read the passage quickly (3’)1) How many paragraphs does the reading text consist of? Please number them. 2) Make a pision of the text.

Fast-Reading

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Main ideas of each part:Part1 (1)

Introduce a debate over the issue of global warming.

raising a question

Part2 (2-5) (2-

How global warming comes about.

giving examples, using graphs, explanation

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Part3 (6)

List two different attitudes among scientists towards global warming.

giving examples, making contrast

Part3 (7)

It's up to readers to think and decide whether people should do something about global warming or not.

leaving a question

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Are the risks too great?So can you predict the future of the global warming?

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Careful readingPart1 (1)

Introduction of global warming.

Who writes this article? Sophie Armstrong of Earth Care What rose about one degree Fahrenheit? The temperature of the earth

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Part2 (2-5)

How global warming comes about?

1. ___________________ human activity 2. ___________________________ the burning of fossil fuels What are the Greenhouse gases?

1. Carbon dioxide 2. Methane 3. Water vapor

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Part3 (6-7) (6-

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