高中英语 Unit 4 Global Warming Reading The Earth Is Becoming WarmerBut Does It Matter教学课件 新人教选修6.ppt

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1、Unit4Unit4Global WarmingGlobal Warming2021/8/11 星期三1ReadingThe Earth is Becoming Warmer-But Does It Matter?2021/8/11 星期三2Explore the cause of global warming1Page 3Learn different attitudes towards global warming2 Aims2021/8/11 星期三3Go through the text and think about how to divide the whole passage a

2、ccording to the main idea.2021/8/11 星期三4Paragraph 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 星期三5 The

3、earth 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 星期三6Para.1:Question:How has this global warming come about?2021/8/11 星期三

4、7 Para.2 It isIt is human activityhuman activity that that has caused has caused this global warming rather than a this global warming rather than a random but natural phenomenon.random but natural phenomenon.全球变暖正是人类活动导致而成的，而全球变暖正是人类活动导致而成的，而不是随意的自然现象。不是随意的自然现象。2021/8/11 星期三8How has human activity

5、caused this How has human activity caused this global warming?global warming?2021/8/11 星期三9Look at the two graphs.Graph 1:Graph 2:2021/8/11 星期三1019572021/8/11 星期三113152021/8/11 星期三121957nnFrom the two graphs,can you find some From the two graphs,can you find some relationship between them?relationsh

6、ip between them?The more CO2,the higher temperature.2021/8/11 星期三13nWhy does more CO2 cause higher temperature?Graph 1:Graph 2:2021/8/11 星期三14Greenhouse gases _ the heat of the sun and therefore _ the earth.It is known as _.greenhouse effecttrapwarmIs“Greenhouse effect”beneficial or harmful to us?Pa

7、ra.3(Line 24-36)2021/8/11 星期三15carbon dioxideFossil Fuelcoal oil gas producenWhy is extra carbon dioxide added into the atmosphere?Para.3(Line 18-23)&Para.52021/8/11 星期三16nIs“global warming”beneficial or harmful to us?Does it matter?Para.62021/8/11 星期三17 Negative effects disappearance of species2021

8、/8/11 星期三18Positive effectsmake plants grow quicker crops will produce morea greater range of animals make life better 2021/8/11 星期三191.cause the sea level to rise2.severe storms3.floods4.droughts5.famines6.the spread of diseases7.disappearance of speciesPositive effects Negative effects 1.make plan

9、ts grow quicker2.crops will produce more3.a greater range of animals4.make life better2021/8/11 星期三20Game:Run a choo-choo trainGroup1Group2Group32021/8/11 星期三211.cause the sea level to rise2.severe storms3.floods4.droughts5.famines6.the spread of diseases7.disappearance of speciesPositive effects Ne

10、gative effects 1.make plants grow quicker2.crops will produce more3.a greater range of animals4.make life better2021/8/11 星期三22Search for some more materials and think about whats your attitude towards global warming.Prepare for the debate about“Should we do something about global warming?”Assignment 2021/8/11 星期三23谢谢 谢谢 ！2021/8/11 星期三242021/8/11 星期三25