高中英语 Unit 7 The sea Lesson 26 Protecting the Sea课件 北师大版必修3.ppt

unit7thesea 26protectingthesea howistheseaimportanttopeople peoplecangetseafoodsuchas fish seaanimalsandplants theseaisrichinmanynaturalresources wecangetoil naturalgasandsomemetals besides theseahasagreateffectonclimateontheearth japaneseshiparekillingthewhale howcrueltheyare theseaisimportanttous butwiththedevelopmentofsociety humanbeingsexploreandseizetheseawithoutlimit asaresult doharmtothesea over fishing harvestfishnow whataboutthefuture whathappened theoiltankerwasupset oilpouredintothesea whatistheresult whocansavethepoorbirds in1989anoiltankerhitarockoffthenorthwestcoastofalaska 35 000tonsofoilpouredintothesea theaccidentwasoneoftheworstinhistory morethan34 000birdsand10 000animalswerekilled 4 8oosquarekilometersofoceanwerepolluted theseaisweeping whatwillhappen industrialwaste redtide istherenothingwithus chinahasbeenexperiencingincreasingredtidesoffthechinesecoastsincethe1990sduetoincreasingpollutioncausedbyindustrialwaste accordingtoanofficialreport duringthepast20years atotalof200redtideshavebeenregistered 经正式鉴定的 causing240millionu s dollarsindirecteconomiclosses the45majorredtidesoccurredinthebohaisea theyellowsea theeast chinaseaandthesouthchinasea about4billiontonsofindustrialwastewateraredischarged 排放 intotheseaeveryyear resultingintheaccumulation 积累 oforganicpollutantsblamed 归咎于有机污染物 forthegrowingoutbreaksofdisastrousredtides redtidesmayalsodestroymarinelives 海洋生物 andbringharmtomarinecultivationindustries 海洋养殖业 1 youarelikelytonoticesomethingaboutseapollutioninyourcityorhometown pleasetalkaboutit 2 ifwegoonpollutingtheseawhatistheresult ifthegovernmentgoonallowingtheindustrialwastefromfactoriesintotheseaandrivers itisnotsafetoeatthefish ifwegoonpouringtherubbishintothesea itisnolongersafeforswimming asalotofdiseasesarepresentinthewater ifwegoonpollutingthesealikethat childreninthefuturewillnotseebeautifulbluesea 3 whatmeasuresdoyouthinkweshouldtake thegovernmentshouldmakelawstoprotectthesea wetakeactionlikethemtoprotectthesea cleaningoil thepeopleofthegreenpeaceorganizationarestrugglingwiththeshipforcatchingwhales whataretheydoing zhihongandfangzhouarealsotalkingaboutprotectingthesea whatwilltheysay weshouldspreadtheknowledgeaboutprotectingtheseaandletpeoplerealizetheimportanceofthesea listentothetapeandchoosetherightanswer 1 whatcanbedoneaboutoverfishing man maderaisingfishb intheworstareastheybanfishingforseveralyearsc controlthenumberoffishpeoplecancatch 2 what stheresultofoverfishing a therearelessfishtocatchb peoplecanfishtoomuchc theycancatchmorefishthanbeforebybettertechnology a therearelessfishtocatch 3 whataresomegovernmentdepartmentsdoingaboutseapollution a punishingpeoplewhokeeparecordoflevelsofpopulationb thinkingofwaystoreducepopulationc alldepartmentsmustberesponsibleforfindingwherepollutioncomesfrom b thinkingofwaystoreducepopulation listentothetapeagainandfillinthetape 1 that swhenpeoplefish andthenumberoffish somefishmaydisappearaltogether 2 sotherearemorefisherman well theyhopeto butthereare tocatch sothey toomuch fallstoolow catchingmorefish catchmorefish lessfish simplycan t 3 itmostlycomesfrom wastefrom and wastefrom 4 theyalsotrytohelppeopleto sothereare tryingto lesspeople makingalivingfromfishing industrial agricultural factories farming getotherkindsofjobs 2 whatistheproblem2 pollution over fishing listentotheinterviewagainandanswerthequestions 1 whatistheproblem1 3 whatarethereasonsforproblem2 toomanyfishermaninthesameplace bettertechnologycancatchmorefish 4 whatarethecausesofproblem1 chemicals plastic rubbish oil industrywaste fromfactoriesandagriculturalwaste 5 whatarethesolutionstoproblem1 governmentdepartments lookforwaystoreducepollution keeparecordoflevelsofpollution findingwhereitcomefrom punishingpolluterswhobreakthelaw 6 whatarethesolutionstoproblem2 controlthenumberoffishthatpeoplecancatch banfishingcompletelyforafewmonths helppeopletogetotherkindsofjobs readthroughtheexampledialoguethenmakeupanewonewithyourpartner a whatareyougoingtodoforyourseaproject b i minterestedinhistoryofseatravel a oh really b yes iwanttoknowhowhumanbeingscrossedtheseatolandotherplacesinsmallboat a oh itishardtoimagine b mm theywerebraveandcleverenoughtoexploreunknownland a whatdoyoualreadyknowaboutthesubject b iknowitwasn tcolumbusbutthevikingreachedamericafirst a oh werethey b yes lookattheoldmap itisthoughtthatthevikingdrawthemapthatwasusedbycolumbuslater a mm itistoointeresting whatdoyouneedtofindoutaboutthesubject b whowerethefirstpeopletoreachaustralia howdidtheyarrive a really howcanyoufindoutmoreaboutthesubject b igetsomeinformationfrombooksandtheinternet i llmakeacartoonaboutit a mm doyou