北师大版高一必修三教学课件：Unit 7Lesson 2.ppt

unit7 unit7thesea lesson2 protectingthesea let senjoythewonderfulseaanditsrichrecourses thepureandbeautifulsea however doyouknowhowabouttheseaisnow dirty polluted theseaisillnow itisbadlypolluted oilandpetrolpollutedthesea seapollutioncausedfishandseaanimalstodie howistheseaimportanttopeople peoplecangetseafoodsuchasfish seaanimalsandplants theseaisrichinmanynaturalresources wecangetoil naturalgasandsomemetals besides theseahasagreateffectonclimateontheearth japaneseshipsarekillingthewhale howcrueltheyare theseaisimportanttous butwiththedevelopmentofsociety humanbeingsexploreandseizetheseawithoutlimit asaresult doharmtothesea harvestfishnow whataboutthefuture over fishing whathappened theoiltankerwasupset andoilpouredintothesea whatistheresult whocansavethepoorbirds in1989anoiltankerhitarockoffthenorthwestcoastofalaska 35 000tonsofoilpouredintothesea theaccidentwasoneoftheworstinhistory morethan34 000birdsand10 000animalswerekilled 4 800squarekilometersofoceanwerepolluted industrialwaste theseaisweeping whatwillhappen istherenothingwithus redtide chinahasbeenexperiencingincreasingredtidesoffthechinesecoastsincethe1990sduetoincreasingpollutioncausedbyindustrialwaste accordingtoanofficialreport duringthepast20years atotalof200redtideshavebeenregistered 经正式鉴定的 causing240millionu s dollarsindirecteconomiclosses the45majorredtidesoccurredinthebohaisea theyellowsea theeastchinaseaandthesouthchinasea 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 ifwegoonpollutingthesea whatistheresult ifthegovernmentgoesonallowingtheindustrialwastefromfactoriestopourintotheseaandrivers itisnotsafetoeatthefish ifwegoonpouringtherubbishintothesea itisnolongersafeforswimming asalotofdiseasesarepresentinthewater ifwegoonpollutingthesealikethat childreninthefuturewillnotseethebeautifulbluesea 3 whatmeasuresdoyouthinkweshouldtake thegovernmentshouldmakelawstoprotectthesea wetakeactionlikethemtoprotectthesea cleaningoil thepeopleofthegreenpeaceorganization 绿色和平组织 arestrugglingwiththeshipforcatchingwhales whataretheydoing weshouldspreadtheknowledgeaboutprotectingtheseaandletpeoplerealizetheimportanceofthesea zhihongandfangzhouarealsotalkingaboutprotectingthesea whatwilltheysay listentothetapeandchoosetherightanswer 1 whatcanbedoneaboutoverfishing a man maderaisingfishb intheworstareastheybanfishingforseveralyearsc controlthenumberoffishpeoplecancatch c 2 what stheresultofoverfishing a therearelessfishtocatch b peoplecanfishtoomuch c theycancatchmorefishthanbeforebybettertechnology a 3 whataresomegovernmentdepartmentsdoingaboutseapollution a punishingpeoplewhokeeparecordoflevelsofpopulation b thinkingofwaystoreducepopulation c alldepartmentsmustberesponsibleforfindingwherepollutioncomesfrom b listentotheinterviewagainandanswerthequestions 1 whatistheproblem1 pollution 2 whatistheproblem2 over fishing 3 whatarethecausesofproblem1 chemicals plastic rubbish oil industrialwaste andagriculturalwaste 4 whatarethecausesforproblem2 toomanyfishermeninthesameplace bettertechnologycancatchmorefish 5 whatarethesolutionstoproblem1 governmentdepartmentslookforwaystoreducepollution keeparecordoflevelsofpollution findwhereitcomesfrom punishpeoplewhocausepollutionandbreakthelaw 6 whatarethesolutionstoproblem2 controlthenumberoffishthatpeoplecancatch banfishingcompletely helppeopletogetotherkindsofjobs listentothetapeagainandfillintheblanks 1 that swhenpeoplefish andthenumberoffish somefishmaydisappearaltogether toomuch fallstoolow 2 sotherearemorefishermen well theyhopeto butthereare tocatch sothey catchingmorefish catchmorefish lessfish simplycan t 3 allsorts chemicals plastic rubbish oil mostofthemcomefrom and waste industrial agricultural 4 theyalsotrytohelppeopleto sothereare tryingto lesspeople makingalivingfromfishing getotherkindsofjobs listentotheconversationfortheforthtimeandcompletethesentencesinthefunctionfilewiththewordsandexpressionsthatweusetoshowinterestandkeepaconversationgoing itsoundslike really that sgoodidea yes isupposeitmustbe arethey doyoumean somefishmaydisappear 1 altogether nowtherearetoo 2 manyfishermenfishingthatthereareinthesameplace morefishermennowthantherewerebefore really doyoumean interaction speaker listener mostofthemcomefrom 3 industrialandabigproblemagriculturalwaste somegovernmentdepartmentsaretryingtodealwith 4 thesituation itsoundslike interaction speaker listener arethey oftenit squitedifficulttofindwho sresponsible 5 forpollution theyalsotrytohelppeopletogetotherkinds 6 ofjobssothereareless peopletryingtomakealivingfromfishing yes isupposeitmustbe that sagoodidea interaction speaker listener a whatareyougoingtodoforyourseaproject b i minterestedinhistoryofseatravel nowworkinpairs taketurnstotelleachotheraboutyourprojects whenyoulisten trytoshowinterest a oh really b yes iwanttoknowhowhumanbeingscrossedtheseatolandotherplacesinasmallboat a oh itishardtoimagine b mm theywerebraveandcleverenoughtoexploreunknownland a whatdoyoualreadyknowaboutthesubject b iknowitwasn tcolumbusbutthevikingreachedamericafirst a oh werethey b yes lookattheoldmap itisthoughtthatthevikingdrew themapthatwasusedbycolumbuslater a mm iti