Earth Song

1. Earth Song

2. Our earth has got a high fever! SOS! SOS!

3. Modern Man and the Earth

4. T/F for paragraph 1 • The history of the earth is less than 4 billion years. • Modern man has lived on it for only 30,000 years. • People do both good and bad things to the earth. more F 35,000 F T

5. Questions forParagraph 2&3 In big cities ,what has polluted the air ? Cars , buses and factories. What have factories polluted? The land, the air and the water. Have many rivers and lakes become very dirty? Yes ,they have. How many trees have been cut down by people? Millions and millions of trees have been cut down.

6. In big cites, cars and buses have polluted the air so that many people now have very bad health problems .Factories have also polluted the land, the air and the water.As a result , many rivers and lakes have become very dirty. Some of them are even dead now.

7. All over the world, people have cut downmillions and millions of trees. Many types of animals ,as a result, are in danger and the quality of the air has become worse.

8. Paragraph 4 At the same time , people burn oil, coal and wood. The dirty air has formed a “blanket” around the earth. The heat from the sun cannot escape, so the air temperature is rising. This is called the greenhouse effect This means that the level of the sea is rising and the climate is changing.

9. Fill in the blanks according to paragraph 2,3,4 : polluted health bad problems lakes rivers land air water in cut down trees danger worse coal oil wood greenhouse effect

10. Retell Para.2,3&4 according to the table

11. 1.Be _______ ________ 2.Only buy and use things that ______ ______ ______ the environment. 3.Get rid of habit of using once and then ______ ______ _______ Things We Can Do To Protect The Environment Paragraph 5 green consumers do not damage throwing them away

12. Some Measures Taken by Countries to Improve the Environment(部分国家改善环境采取的措施) Paragraph 5 • 1.Use the wind ,the sun and the sea to _______ ________. • 2.Do not allow people to ______ _______ on certain days. • 3.Use _______ cars and buses. make electricity drive cars electric

13. These problems are very serious for our future ,but we can do something now. People have already take action to improve the environment .We can be green consumers. 采取行动 [kən‘sju:mə] n. 消费者

14. [‘dæmidʒ] vt.损害 That is, we should only buy and use things that do not damage the environment. We should get rid ofthe habit of using things once and then throwing them away. 丢弃，摆脱

15. Many countries now use the wind ,the sun and the sea to make electricity. In some cities, for example, people cannot drive cars on certain days .In other places, they use electric cars and buses. [,ilek‘trisəti]n.电 [i'lektrik] adj.电的；电动的

16. Read paragraph 5 together People have already taken action to ____ the environment .We can be _____ consumers. That is, we should only buy and use things that do not ____ the environment. We should get rid ofthe habit of using things ___ and then throwing them away. Many countries now use the ___ ,the ___ and the sea to make electricity. In some cities, for example, people cannot drive cars on ____ days .In ____ places, they use electric cars and buses.

17. Retell the passage …has lived on the earth for… …good things and bad things Modern Man and the Earth people bad health problems cars , buses in big cities • rivers, lakes; • dirty, dead factories bad things all over the world trees animals ,danger the level of sea, climate at the same time greenhouse effect We can do … get rid of, damage goodthings make electricity drive cars…. Some countries have done

19. Action!

20. Assignment Write a composition on Environmental Protection. (P121)

21. Thank you!

22. New words • burn [bə:n] (burnt [bə:nt] 或burned [bə:nd] ) vt.& vi.燃烧；烧毁 • oil[ɔil] n.油；石油 • escape [i‘skeip] vi&vt.逃，逃脱;(液体，气体)逸出,漏出 逃跑;逃脱 [(+from)] • climate [‘klaimit] n.气候 • blanket [‘blæŋkit] n.毛毯，毯子；毯状物，覆盖层 • level['levəl] n.水平；水平面