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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,高中英语课件,（金戈铁骑 整理制作,）,高中英语课件（金戈铁骑 整理制作）,Unit 4 Global Warming,Reading:,The Earth Is Becoming Warmer-But Does It Matter?,Unit 4 Global WarmingReading:,Lead-in,Lead-in,Which of the following picture doesnt show the phenomenon of global warming?,Which of the following picture,Which of the following picture is not“greenhouse gases”?,Which of the following picture,Which of the following picture is non-renewable energy?,Which of the following picture,Fast Reading,Fast Reading,Match:the main idea of each paragraph.,Para.1,Para.2,Para.3,Para.4,Para.5,Para.6,Para.7,A.the cause of the earths becoming warmer,B.the consequence of burning fossil fuels,C.the increase of carbon dioxide,D.global warming will go on,E.puzzles about global warming,F.different attitudes to global warming,G.an introduction to the passsage,Match:the main idea of each,Intensive Reading,Intensive Reading,What is this graph about?What,has caused this phenomenon?,It shows the temperature increase of one degree Farenheit between 1860 to 2000.Human activity.,Paragraph1,paragraph2,and,What is this graph about?Wha,Listen to,paragraph3,and then discuss questions in group to choose right answer.,1.Greenhouse gases refer to _.,A.carbon dioxide,B.the burning of fossil fuels,C.byproducts of the burning of,fossil fuels,D.coal,natural gas and oil,C,Listen to paragraph3 and then,2.Greenhouse effect _.,A.is a natural phenomenon,B.happens when theres too much carbon dioxide,C.does great harm to human beings,D.makes life for human beings better,2.Greenhouse effect _.,A.is a natural phenomenon,B.happens when theres too much carbon dioxide,C.does great harm to human beings,D.makes life for human beings better,A,2.Greenhouse effect _.2.G,Simple drawing,Simple drawing,Combined with,Paragraph4,and,Paragraph5,judge T or F.,1.The carbon dioxide content in the air increased by 70 parts per million from 1957 to 1997.,2.All scientists accept the data in graph 2 except Charles Keeling.,F,F,Combined with Paragraph4 and P,Paragraph6,Different attitudes towards global warming,It would lead to a catastrophe.,the climate could be very serious,a rise of several metres in the sea level,severe storms,floods,droughts,famines,the spread of diseases,the disappearance of species,Dr.Foster:,George Hambly:,We should not worry about it.,make plants grow quicker,crops will produce more,encourage a greater range of animals,Paragraph6 Different attitudes,Paragraph7,Answer questions.,1,.If we start reducing the amount of carbon dioxide and other greenhouse gases,is the climate going to stop?,2.Whats the attitude of the author?Positive?Negative or Neutral?,Paragraph7 Answer questions.,Writing,Write down the advantage or disadvange of global warming in your opinion.,WritingWrite down the advanta,Homework,Surf the Internet for more information,about global warming.,HomeworkSurf the Internet for,
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