every day to help reduce greenhouse gases. Please make your voice heard and get involved in the discussion. After the discussion, please write your suggestions on a piece of paper and put it on your bulletin board so that you can share your ideas with the whole class.

Step VII Discussion

Divide the students into different groups and discuss the questions of Ex 4 on Page 7. They are given several minutes to discuss. Each member is encouraged to think actively and participate in the discussion. Make sure all the students have their own opinions. Every group should have their secretary to write down the discussion. Then each group should pin the suggestions on the bulletin board so that everyone can read them and learn about others' good way to reduce green house gases.

T: Please work in groups and express yourself freely. Because everyone has his or her own practical way, please share your ideas with your group members.

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T: Before starting your discussion, please read the following.

Show the following on the PowerPoint.

The Top Five Global Warming Polluters!

1. The United States

2. China

3. Russia

4. Japan

5. America's Cars and Light Trucks

China to Invest $175 Billion in Environmental Protection Over Five Years

China has created an "economic miracle" over the past two decades, air pollution is choking its cities, chemical spills are fouling its rivers and drinking water