温室效应英文ppt

Globalwarming王庆张念强蘧岩阙文杰Whatisglobalwarming?Withthedevelopmentofeconomy,moreandmoregreenhousegasesarebeingdischargedintotheair.CO2makesupabout70%ofthegreenhousegases,whichisconsideredtobeoneofthegreatestcausesofglobalwarming.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。ThecauseofwarmingThedangersofglobalwarmingGlobalwarmingcanhavemanyunforeseensideeffects.全球变暖带来许多不可预料的影响。Iftheearth'saveragetemperaturerisesupby4degrees,theworldwillhavemorethan30millionpeoplewhoaregoingtobeconfinedbywatershortagesproblem.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。Themeltingsnowintheearth‘spoles(极点)canleadtorisingsealevels,andmanyislandswillbedrowned,whichmeanssomeislandsmaynotexistforever.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。Wewillworkinthewaterif…Yes,ourearthisheatingup...Whatcanwedo是的，我们的地球正在升温……我们可以怎样做？Usingsolarenergyand…ridebikestoworkMaybewecanusemorecleanenergyandlesscoalandoil，andweoughttogotoworkonfootorbybusinsteadofdrivingaprivatecarifpossible.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。weshouldplantmoretrees,becauseplantscanturnCO2intooxygen.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’sbegintotakeaction,savingenergyandprotectingenvironment,protectingoursurvivalhomelandtogether!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！Ourhomewillbemoreandmorebeautifulifwe…theendThankyou!