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1、,Unit 4 Global Warming,前言,Preface,Energy is everywhere and it plays an important role in our daily life.Without energy,we wouldnt do anything.,The Earth Is Becoming Warmer,but Does It Matter?,Reading,Part1,Part2,Part3,(1),(2-5),(6),A.How global warming comes about,B.List two different attitudes towa
2、rds global warming,Part4,(7),D.Whether people should do something about global warming,1.Match the main idea of each part,givingexamples,using graphs and quotes(引言）,giving examples,making contrast,leaving a question,raising a question,C.Introduction of global warming,2.What does the passage mainly t
3、alk about?,A.The cause of global warmingB.Two different attitudes towards global warmingC.It doesnt matter that the earth is becoming warmerD.Both A and B,3.What is the writing style of the passage?,Exposition（说明文）B.Argumentation（议论文）C.Narration(记叙文）,5.This article is from _.A.An environmental magaz
4、ine.B.A diaryC.A novel D.A story,1.Who writes this article?Sophie Armstrong of Earth Care2.What happened during 20th century?The temperature of the earth rose about one degree,Careful reading,Introduction of global warming.,2._,1._,1.How global warming comes about?,the burning of fossil fuels,human
5、activity,1.Carbon dioxide,2.Methane,2.What are the Greenhouse gases?,3.Water vapor,They show that the _ and the_ have been increasing rapidly.,3.What do the two graphs show us?,temperature,carbon dioxide content,4.Greenhouse effect _.A.is a natural phenomenon B.happens when theres too much carbon di
6、oxide C.does great harm to human beingsD.makes life for human beings better,5.Retell the process of global warmings cause.,extracarbon dioxide,Dr Janice Foster,George Hambley,very serious,mild,positive,sea level,range,rise,diseases,floods,disappearance,consequences,悲观,乐观,What does the last two quest
7、ions in the last part imply?,Read the last part and think the questions over.,By asking the two questions at the end of the article,the writer implies that_.A.we should do nothing about global warmingB.we should not be too worried about global warming but we should do something,8.The author probably
8、 agrees that _.A.actually global warming is good for manB.we should do nothing about the global warmingC.catastrophes will happen if the globe keeps on warmingD.a lot remains to be found out about the effects of global warming,Lets live a low-carbon life！,Retelling of the text There is no _ that the
9、 earth is becoming warmer and that it is _ that has caused this _ warming.All scientists _ to the view that the increase in the atmosphere is _ to the burning of fossil fuels,which has _ in the rise in carbon dioxide.However,scientists have different attitudes _ this rise.On one hand,Dr Janice Foste
10、r thinks that result would be _.On the other hand,those who are _ to this view believe that we should not worry too much.Does that mean we should do nothing?,doubt,human activity,global,subscribe,due,increase,towards,serious,opposed,Global warming could be very serious We shall do something about gl
11、obal warming.,Any warming could be mild.We shall do nothing about global warming.,Discussion 1.（who do you agree with),George Hambley,Janice Foster,Useful expressions,I think be due toIn my opinion,it will cause/make/lead to/result in/PersonallyAs far as Im concerned,be apposed to subscribe to,plant trees,solar panels,windmills(风车),plastic bags,discussing 2,What can we do about global warming?,I swear,To protect our motherland,we should Stop using plastic bags.Stop wasting energies.Plant more trees.Ride a bike.,
