;savetheearth高二英语课件
日期:2010-12-22 12:32
AirandWater制作:朱凤梅赵秀玲衡水市第二中学LakeBaikalDunhuangGebiIndiaMediterraneanSeaGermanyUSAAlskaChinaRussiaEARTHAIRWATERManypartsoftheworldwithlargepopulationandplentyofcropshavebecomedesert2Landmaybecomepooriffarmersdonotlimittheircattle3Goodsoilisgraduallylostthesedaysastreesarebeingcutdown4Airpollutionandwaterpollutionarethetwocausesofproblemthatmanypartsoftheworldhavebecomedesert5Chemicalsinthesmokefrompowerstationscantravelhundredsofmilesbeforefallingdowntotherain6Afterabadaccidentatanuclearpowerstation,50%ofthetreesinGermanyweredamaged7ThewriterusestheexamplesoftheaccidentsinbothIndiaandRussiatoexplainhowwaterispolluted8Onceoceansarepolluted,SavingtheearthLesson34Unit9Earth,theyarenotabletocleanthemselvesManypartsoftheworldwithlargepopulationandplentyofcropshavebecomedesert(T)2Landmaybecomepooriffarmersdonotlimittheircattle(T)3Goodsoilisgraduallylostthesedaysastreesarebeingcutdown(T)4Airpollutionandwaterpollutionarethetwocausesofprobl,
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