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以下为《book6-unit4-The-earth-is-becoming-warmer阅读课件》的无排版文字预览，完整内容请下载

Words studyGlobal warmingUnit 4 What is global warming?The earth is becoming warmer.2.What causes the global warming?Human activity—burning of fossil fuels

Greenhouse effect—greenhouse gases

Huge quantities of extra carbon dioxidewhat is this?what is this?⊙What is it in the picture?

It’s a __________made of glass.

greenhouse⊙What is it used for?

It’s used for________________, especially during cold weather.growing plants2. How does the greenhouse work?The air inside was warm because the

glass traps(挡住, 吸收) the heat from the

sun and keeps it from escaping(逃跑).

This makes the greenhouse heat up(热量

上升) and so the plants can grow

throughout(在…期间) the cold period.3. Greenhouse Effect Global warmingGreenhouse gases trapped the heat from the sun, which causes the temperature of earth goes up. The earth is becoming warmer

——But does it matter?Reading hot ! ! !Skim the title:

THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?What is the main topic?

The earth. B. Global warming.

C. Becoming warmer doesn’t matter.

? Read the title and the opening paragraph, then answer the following questions:1. Who wrote the article?2.What is the name of the magazine?Fast ReadingScanningMatch the main idea of each part: Explain ho 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 paper. There are many things we can do to help. And please remember, no matter how small these things may look, your contribution counts! United, we can make a big difference! Love our planet!

Love life!

Start from every little bit to fight against global warming.Thank You ![文章尾部最后300字内容到此结束,中间部分内容请查看底下的图片预览]

以上为《book6-unit4-The-earth-is-becoming-warmer阅读课件》的无排版文字预览，完整内容请下载

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