【課件】仁愛版九年級上冊Unit 2 Topic 2section C (共18張PPT)

1、Unit 2 Saving the EarthTopic 2 All these problems are very serious. Section CMiss Zheng沙畫視頻_the earthwe must do somethingproblems and effectsChoose the best title and match the right key words with each part.Environmental problemsPart1:Part 2:Part 3:-We can divide a passage according to the key word

2、s.Part 1 How old is the earth?4.6 billionyears oldHow long have we lived on the earth?35,000 yearsHas our planet changed a lot?YesRead and find the best titles of paragraph 2-6:Paragraph 2:_Paragraph 4:_Paragraph 6:_Sometimes we can get the key words from the first sentence.A. Traffic pollution B. F

3、actory pollution C. The ozone holeD. Fewer treesE. More carbon dioxideParagraph 3:_Paragraph 5:_ 二氧化碳二氧化碳/ka: bn daia: ksaid/ 臭氧臭氧 /uzun/fewer treestraffic pollution factory pollutionbecome deserts;disappearthe ozone hole more carbon dioxidepollute the air;have health problemspollute land and water;

4、 be dead fewer treesmoreco2traffic pollutionfactory pollutionGroup work:Write a speech to call on(號召）號召） people to protect our environment.You can begin like this:Ladies and gentlemen, attention please!I am from the Green Organization. _So please join us! Thanks for your attention! All over the worl

5、d, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disappearing. _ _ _ problemsWe should plant more treesAs a student, what do you think you can do to make our earth beautiful

6、inour daily life?1.Read 1a. 2.Try to write a passage about some environmental problems and the effects.Thank youThank youCO2 carbon dioxide increase a lot, form a “blanket”, the heat from the sun cant escape 二氧化碳二氧化碳/ka: bn daia: ksaid/ 毛毯毛毯/ blkit/ All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disap