《环境保护英》课件.ppt

EnvironmentalProtection Environmentisthethingsaroundthecenterofthings ThelawofEnvironmentalProtection Environmentis air water land minerals forestsgrasslands wildlife 野生动植物 aquaticfloraandfauna 水生动植物 historicalsites scenicareasnaturereserves residentialareas Whatishappeningontheeartheverysecond 2 4Neonatesbornintheworld extracted28 6tonsofmetal produce1 3cars CO2emissionsof760tonsworldwide Decreaseof0 6squarekilometersforest Theworld stoptenenvironmentalproblems 1 Globalwarming 全球变暖 2 Ozonelayerdepletion 臭氧层破坏 3 Lossofbiodiversity 生物多样性减少 4 Thespreadofacidrain 酸雨蔓延 5 Forestdropped 森林锐减 6 Desertification 土地荒漠化 7 Airpollution 大气污染 8 Waterpollution 水体污染 9 Marinepollution 海洋污染 10 Cross boundarymovementsofpoisonouswastes 毒性废弃物越境转移 NO 1Globalwarming Graduallyincreasingthegreenhouseeffect Earth stemperaturerising Mainhazards 危害 abnormalweather speciesextinction thesealevelrising Ozone O3 layer theEarth sprotectivelayer Mainhazards strongUV ultra violetray紫外线 radiationcandamageimmunesystem 免疫系统 ofhumannaturesandanimals causeskincancerandcataracts 白内障 damagetotheearth secosystems 全球生态系统 NO 2Ozonelayerdepletion NO 3Lossofbiodiversity NO 4Thespreadofacidrain Globalextinctionof50 000species year 140 dayonaverage pH 5 6referredasacidrain Mainhazards Waterandsoilacidification 酸化 plantandanimaldeath corrosion 腐蚀 buildings railwaysandbridgesandotherfacilities NO 5Forestdropped NO 6Desertification Hugenumbersofglobaldeforestation 600millionsquarekilometersoflandintodeserteachyear NO 7Airpollution Sulfideandnitrogenoxides 硫化物和氮氧化合物 intotheatmosphereworldwideupto30milliontonseachyear NO 8Waterpollution About40 oftheworld sriversareseriouslypolluted Freshwater 淡水 resourcesarebecomingexhausted NO 9Marinepollution NO 10Cross boundarymovementsofpoisonouswastes Hundredsoftonsofsiltandwaste 淤泥和废弃物 intothecoastalw