选修六《Unit4Globalwarming》Reading优质课件.ppt--（课件中不含音视频）

1、Book 6 Unit 4Global Warming-ReadingWhat is the weather like today?extreme weather eventsdroughtfloodtyphoonTsunamihigh temperatureWhat has caused the extreme climate?What are the two graphs about?The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000.The second

2、graph shows the carbon dioxide content in the atmosphere from 1957 to 1997.Whats the relationship between the two factors and global warming?Greenhouse EffectGlobal warmingGreenhouse gases(CO2)trap the heat from the sun,which causes the temperature of earth to go up.Task 1:Who wrote the article?What

3、 is the main idea of the magazine?What are the names of the 3 scientists?Global warming/the warming of the earth.Made accurate measurements of the amount of CO2Introduction of Greenhouse gases and Greenhouse effectPredict the global warming will be mild and positiveTask 2:ComparingThe Outline of dif

4、ferent opinionsGroup 1Group 2Group 3The topicPara.1Para.6-7Task 3 ScanningThe organization of the article:Para.2-5 Who writes this article?Sophie Armstrong of Earth CareA.Newspaper B.Novel C.MagazineCareful readingIntroduction of global warming 2._1._(2-5)How global warming comes about?the burning o

5、f fossil fuels human activityCarbon dioxideMethaneWhat are the Greenhouse gases?1.2.3.Water vaporGreenhouse effectDr.Janice Foster George HambleyCarbon dioxide has caused the global temperature to _.An increase of five degrees would be a _ and could be _.More carbon dioxide is a _ thing,which makes

6、crops _ more and will encourage _.go upcatastrophevery seriouspositiveproducea greater range of animalsDifferent attitudes towards the effects of global warmingDebateGroup Work1We shall do something about global warming.2We shall do nothing about global warming.1.cause the sea level to rise2.the spr

7、ead of diseases3.disappearance of speciesSo we should:1.Reduce the burning of fossil fuels 2.Use bags that can be recycled 1.make plants grow faster2.crops will produce more3.a greater range of animals4.make life betterSo we dont worry about global warming Possible effects:Negative effectsPositive e

8、ffectsThe voice from the world 2015 climate conference in Paris President Xi delivered the speech In order to benefit the next generation,we should make every effort to protect the earth where we live today!If you were a representative to attend the World Climate Conference,what kinds of suggestions would you offer?What can we do about global warming(P30)Welcome to any comments!