温室效应英文课件

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,*,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,*,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,*,*,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,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,*,*,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,*,*,温室效应英文ppt,温室效应英文ppt温室效应英文ppt,温室效应英文ppt温室效应英文ppt温室效应英文ppt,1,温室效应英文课件,2,温室效应英文课件,3,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,.,What is global warming?With th,4,The cause of warming,The cause of warming,5,温室效应英文课件,6,The dangers of global warming,The effects of global warming can have many unforeseen side effects.,The dangers of global warming,7,if the earths average temperature 4 degrees Celsius,the world will have more than 30 million people water shortages.,if the earths average tempera,8,Warmer temperatures will cause ice to melt at the earths poles,which can lead to the sea levels rise,many islands will be drowned,some island may not exist.,Warmer temperatures will cause,9,温室效应英文课件,10,温室效应英文课件,11,Yes,our earth is heating up.What can we do,Yes,our earth is heating up.,12,we should use more clean energy and less coal and oil.And we should go to work on foot or by bus instead of driving a car if possible,.,we should use more clean ener,13,Using solar energy,Using solar energy,14,We can ride bikes to work,We can ride bikes to work,15,we should plant more trees,because plants can turn CO2 into oxygen.,we should plant more trees,be,16,Let s begin to start saving energy,protecting the environment and our survival homeland!,Let s begin to start saving e,17,Our home will be more and more beautiful,Our home will be more and more,18,the end,Thank you!,the end,19,谢谢观赏,谢谢观赏,20,