SavingtheearthPeriod高二英语课件
日期：2010-03-03 03:32
Unit9SavingtheearthPeriod1ByIvyriver20060925Whyisshecrying?Whyisshesosad?Havewedonesomethingbadtoher?DiscussWaterPollutionRubbishDesertificationDeforestationAirpollutionStarvationsmokefromfactoriessmokefromcarsAndwhat’stheresult?VietNamWarIraqWarwastefromcitieswastefromfactorieswhatcause(s)waterpollution?Deforestationtoomanysheepandcattleallthegrassbeeatengrassnevergrowagain;thelandbecomedesertrainwaterwashesthesoilawaywindblowsthesoilawaynotreestoholdthesoilDesertificationtoomanysheepandcattle→eatupthegrass→nograsswillgrow→onlysandleftStarvation(hunger)andpovertyStarvationismainlycausedbytheunevendistributionofwealthandsometimesbywarornaturaldisastersWecanreducestarvationbyredistributingthewealthofrichcountries，byprovidingeducationandtechnologytodevelopingcountries，andbygivingmonetaryaidtodisaster-strickenareasQ1:Whatcanyouseeinthesepictures?Q2:Whatisthebiggestproblemfacingtheearth?Whydoyouthinkso?Q3:Whatcausestheproblem?Q4:Whatcanwedotosolvethe，
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