大学英语演讲globalwarming.ppt

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1、Global Warming演讲人：*Main Contents What is global warming?What can we do to stop global warming?What causes global warming?What is global warming doing to us?What is global warming?Global Warming:Global warming is the increase in the average temperature of the earths near-surface air and oceans in rec

2、ent decades.What is global warming?What causes global warming?What causes global warming?The squiggle lines coming from the sun are visible light and the lines and arrows inside the car are infrared light.What causes global warming?DeforestationIndustries emissionsPopulation GrowthWhat is global war

3、ming doing to us?Glaciers are melting.the sea is risingWhat is global warming doing to us?In some areas,theoriginal bountiful landnow cracked the mouth,the children do nothave water to drinkand grains to eat.What can we do to stop global warming?vWalk as far as possible or travel by public transportvUse energy conservation electric appliance as far as possible What is global warming doing to us?vDont waste papervTurn off lights when you leavevDont use plastic bags as far as possiblevPlant more trees in your leisure hours.vand so on.