高中英語 Unit 4 Global Warming Reading The Earth Is Becoming WarmerBut Does It Matter教學(xué)課件 新人教選修6

1、2021/8/11 星期三1Unit4Global Warming2021/8/11 星期三2ReadingThe Earth is Becoming Warmer-But Does It Matter?2021/8/11 星期三3Explore the cause of global warming1Page 3Learn different attitudes towards global warming2 Aims2021/8/11 星期三4Go through the text and think about how to divide the whole passage accord

2、ing to the main idea.2021/8/11 星期三5Paragraph 1Paragraphs 2&5Paragraph 6Part1Part2Part4Main idea of the textPart3Paragraph 7How has global warming come about? List two different attitudes among scientists towards global warming.The earth is becoming warmerShould we do anything?2021/8/11 星期三6 The eart

3、h is becoming warmer.How has global warming come about?List two different attitudes among scientists towards global warming.Should we do anything?Part2Para 2&5Part3Para 6Part4Para 7Part1Para 1 Main idea of the text2021/8/11 星期三7Para.1: Question : How has this global warming come about?2021/8/11 星期三8

4、 Para.2 It is human activity that has caused this global warming rather than a random but natural phenomenon.全球變暖正是人類活動導(dǎo)致而成的，而不是隨意的自然現(xiàn)象。2021/8/11 星期三9How has human activity caused this global warming?2021/8/11 星期三10Look at the two graphs .Graph 1:Graph 2:2021/8/11 星期三1119572021/8/11 星期三123152021/8/1

5、1 星期三131957From the two graphs, can you find some relationship between them? The more CO2, the higher temperature.2021/8/11 星期三14Why does more CO2 cause higher temperature?Graph 1:Graph 2:2021/8/11 星期三15Greenhouse gases _ the heat of the sun and therefore _ the earth.It is known as _.greenhouse effe

6、cttrapwarmIs “Greenhouse effect” beneficial or harmful to us?Para.3 (Line 24-36)2021/8/11 星期三16carbon dioxideFossil Fuelcoal oil gas produceWhy is extra carbon dioxide added into the atmosphere? Para.3 (Line 18-23)& Para.52021/8/11 星期三17Is “global warming” beneficial or harmful to us? Does it matter

7、? Para.62021/8/11 星期三18 Negative effects disappearance of species2021/8/11 星期三19Positive effectsmake plants grow quicker crops will produce morea greater range of animals make life better 2021/8/11 星期三20cause the sea level to risesevere stormsfloodsdroughtsfaminesthe spread of diseasesdisappearance

8、of speciesPositive effects Negative effects make plants grow quickercrops will produce morea greater range of animalsmake life better2021/8/11 星期三21Game:Run a choo-choo trainGroup1Group2Group32021/8/11 星期三22cause the sea level to risesevere stormsfloodsdroughtsfaminesthe spread of diseasesdisappearance of speciesPositive effects Negative effects make plants grow quickercrops will produce morea greater range of animalsmake life better2021/8/11 星期三23Search for some more materials and think about whats your attitude towards