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1、Global warming,王庆 张念强蘧岩 阙文杰,What is global warming?,With the development of economy,more and more greenhouse gases are being discharged into the air.CO2 makes up about 70%of the greenhouse gases,which is considered to be one of the greatest causes of global warming.随着经济的发展，更多的温室气体被排放到大气中。二氧化碳占大约70的温
2、室气体，这已经可以认定为导致全球变暖的最主要的原因之一。,The cause of warming,The dangers of global warming,Global warming can have many unforeseen side effects.全球变暖带来许多不可预料的影响。,If the earths average temperature rises up by 4 degrees,the world will have more than 30 million people who are going to be confined by water shortage
3、s problem.如果地球平均气温上升4摄氏度，全球就会有30多亿人面临缺水问题。,The melting snow in the earths poles(极点)can lead to rising sea levels,and many islands will be drowned,which means some islands may not exist forever.地球两极冰雪融化会导致海平面上升，众多岛屿将被淹没，一些岛国可能不复存在。,We will work in the water if,Yes,our earth is heating up.What can we
4、do,是的，我们的地球正在升温 我们可以怎样做？,Using solar energy and,ride bikes to work,May be we can use more clean energy and less coal and oil，and we ought to go to work on foot or by bus instead of driving a private car if possible.我们应更多地使用清洁能源，减少煤和石油使用。如果可能的话，我们应该步行上班，或者是搭乘公交车，以此来取代开私家车。,we should plant more trees,because plants can turn CO2 into oxygen.我们应该种植更多的树，因为植物可以将二氧化碳转化为氧气。,Let s begin to take action,saving energy and protecting environment,protecting our survival homeland together!让我们从现在开始做起，节约能源，保护环境，一起保护起我们赖以生存的家园！,Our home will be more and more beautiful if we,the endThank you!,
