高三英语课件SavingtheearthLesson34Unit9高三英语课件

SavingtheearthLesson34Unit9Earth,AirandWaterLakeBaikalDunhuangGebiIndiaMediterraneanSeaGermanyUSAAlskaChinaRussiaEARTHAIRWATER1.Manypartsoftheworldwithlargepopulationandplentyofcropshavebecomedesert.2.Landmaybecomepooriffarmersdonotlimittheircattle.3.Goodsoilisgraduallylostthesedaysastreesarebeingcutdown.4.Airpollutionandwaterpollutionarethetwocausesofproblemthatmanypartsoftheworldhavebecomedesert.5.Chemicalsinthesmokefrompowerstationscantravelhundredsofmilesbeforefallingdowntotherain.6.Afterabadaccidentatanuclearpowerstation,50%ofthetreesinGermanyweredamaged.7.ThewriterusestheexamplesoftheaccidentsinbothIndiaandRussiatoexplainhowwaterispolluted.8.Onceoceansarepolluted,theyarenotabletocleanthemselves.1.Manypartsoftheworldwithlargepopulationandplentyofcropshavebecomedesert.(T)2.Landmaybecomepooriffarmersdonotlimittheircattle.(T)3.Goodsoilisgraduallylostthesedaysastreesarebeingcutdown.(T)4.Airpollutionandwaterpollutionarethetwocausesofproblemthatmanypartsoftheworldhavebecomedesert.(F)5.Chemicalsinthesmokefrompowerstationscantravelhundredsofmilesbeforefallingdowntotherain.(F)6.Afterabadaccidentatanuclearpowerstation,50%ofthetreesinGermanyweredamaged.(F)7.ThewriterusestheexamplesoftheaccidentsinbothIndiaandRussiatoexplainhowwaterispolluted.(F)8.Onceoceansarepolluted,theyarenotabletocleanthemselves.(F)PhenomenaCausesSuggestionsEARTHTheareaofdesertisgrowingeveryyear.Goodsoilisgraduallylost.AIRAirisbeingpolluted.AlotofpeoplediedfrompollutedairinbothRussiaandIndia.Treesintheforestaredestroyedandfishinthelakesarekilled.WATERInsomeplacesit’snolongersafeforswimming,norisitsafetoeatthefish.LakeBaikal,whichusedtobethecleanestintheworld,isnowpolluted.PhenomenaCausesSuggestionsEARTHTheareaofdesertisgrowingeveryyear.Cattleeatgrass.Limitthenumberofthecattle.Goodsoilisgraduallylost.Treesbeingcutdown;strongwindsblowingthevaluablesoilaway.Plantmoretreesandtrytoprotectthem.AIRAirisbeingpolluted.Factries,powerstationsandcarsproducealotofwaste.Alotofthingshavetobedowntoreducepollutionn.Newlawsshoulddepassedandpeopleshouldrealizehowserioustheproblemis.AlotofpeoplediedfrompollutedairinbothRussiaandIndia.Thereareseriousaccidentsthatpollutedtheair.Treesintheforestaredestroyedandfishinthelakesarekilled.Chemicalrain.WATERInsomeplacesit’snolongersafeforswimming,norisitsafetoeatthefish.Factoriesandcitiesproducesalotofwaste.Sameasabove.LakeBaikal,whichusedtobethecleanestintheworld,isnowpolluted.Wasteproducedfromachemicalfactory.ThemainideaofeachpassageEarth:Air:Water:Theareaofdesertisgrowingandgoodsoilisgraduallylost.Chemicalsinthesmokecausealotofdamageandseriousaccidentstookplacefromtimetotime.Waterpollutioniscausedbyman’swaste.Thewatersofthisgreatlakehavebeendirtiedand4800squarekmofoceanwerepollutedbyoil.DISCUSSION(1)Whatkindofpollutioncanyouthinkof?(2)Whytreesareimportant?(3)Whatarethecausesofwaterpollution?(4)Whatcanbedonetostoplandfrombecomingintodesert?(5)Whatelsedoweknowabouttheproblemsthattheearthisfacing?(6)Whatstepsshouldwetaketosavetheearth?Alotofdamagehasalreadybeendonetotheearth,includingpollution,nuclearwaste,radiationandsoon.Wearealsoawarethatthereisonlyoneearthforus.Sotheideathateveryoneshouldkeepinhisorhermindisstoppinganydamagetotheworldandsavingtheearth.Soeverybodyshouldremember:practiceNowyouareareporterfromthe21stCentury,whenyouaremakingasocialsurveyinyourhometown,youseesomefactoriesinyourhometownareseriouslypollutingtheairandthewater.Theenvironmentisnotwellprotected.YouaregoingtoInterviewagovernmentofficialandwriteareportaboutwhatyousee.YouaresupposedtotelltheImportanceofstoppingthepollutionandProtectingtheenvironment.Nowdotheinterviewfirstinpairsandthenmakeanoralreportaccordingtothefollowingpictures.