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精品文档2016全新精品资料全新公文范文全程指导写作独家原创1/8UNDERTHESEAPERIOD7LISTENINGTASK，TALKINGANDWRITING莲山课件MPERIOD7LISTENINGTASK，TALKINGANDWRITINGTEACHINGAIMS1STUDENTSWILLBEABLETOFINDOUTTHEREASONSWHYTHEPOPULATIONOFSHARKSDECREASESSHARPLY2STUDENTSWILLBEABLETOEXPRESSOPINIONSWITHTHEPOLITEEXPRESSIONSLIKEIDONTTHINKITISWISETOITWOULDBEBETTERIFWEITISAGOODIDEATOISUPPOSEITISRIGHTIWONDERIF3STUDENTSWILLBEABLETOPERSUADETHELOCALGOVERNMENTTOPROTECTWILDLIFEINAPOLITEWAYTEACHINGPROCEDURESSTEP1BEFORELISTENINGSHOWSTUDENTSAPICTUREOFSHARKANDTELLTHEMAFACTTHATSHARKPOPULATIONSAREDECREASINGRAPIDLYSTEP2DURINGLISTENING精品文档2016全新精品资料全新公文范文全程指导写作独家原创2/8TASK1TELLSTUDENTSJORDONDAVIESISINTERVIEWINGTHESHARKEXPERTDONJAMESABOUTTHESHARKSSITUATIONFIRSTREADTHESTATEMENTSBELOWTHENLISTENANDNUMBERTHESESTATEMENTSINTHEORDERTHATTHEYHEARTHEMSHARKPOPULATIONSGROWATAVERYSLOWRATEALOTAREKILLEDBECAUSEOFMODERNFISHINGTECHNOLOGYGOVERNMENTSSHOULDTAKEACTIONSOTHATTHEFISHINGOFSHARKSISSLOWEDDOWNSHARKATTACKSGETALOTOFATTENTIONINTHENEWSSHARKPOPULATIONSAREDECREASINGATASERIOUSRATESOMESPECIESNEEDTOBEPROTECTEDTHECHANCEOFBEINGBITTENBYASHARKISACTUALLYVERYSMALLMILLIONSOFSHARKSAREKILLEDEACHYEARKEYSTHEORDER74815623TASK2LISTENAGAINANDANSWERTHEFOLLOWINGQUESTIONS1SHOULDPEOPLEBEAFRAIDOFSWIMMINGINTHESEA2HOWMANYPEOPLEAREKILLEDBYSHARKSEACHYEAR3DOSHARKSORPEOPLENEEDTOBEPROTECTEDWHY4WHYARESOMANYSHARKSBEINGKILLED5WHYDOESTHESHARKSBIOLOGYAFFECTSHARKPOPULATIONSCOMPLETETHESENTENCESBLOWAAGEFORREPRODUCINGYOUNG精品文档2016全新精品资料全新公文范文全程指导写作独家原创3/8_BTIMEFORTHEYOUNGTODEVELOP_CNUMBEROFYOUNG_6HOWLONGHAVESHARKSPECIESBEENINEXISTENCE7WHATDOESDONTHINKWILLHAPPENIFWEDONTSLOWDOWNTHEFISHINGOFSHARKSSUGGESTEDANSWERS1NO2ONLYAFEW3SHARKSNEEDTOBEPROTECTEDASMILLIONSAREKILLEDEACHYEARBYHUMANBEINGS，WHEREASONLYAFEWHUMANBEINGSAREKILLEDEACHYEARBYSHARKS4SOMETIMESTHEYAREKILLEDBYACCIDENTANDSOMETIMESONPURPOSEFOREXAMPLE，SHARKFINSOUPISADELICACYINSOMEASIANCOUNTRIES51EARS；14MONTHS；796400MILLIONYEARS精品文档2016全新精品资料全新公文范文全程指导写作独家原创4/87DONTHINKSTHATMANYSHARKSPECIESWILLNOTBEABLETOSURVIVESTEP3POSTLISTENINGTALKINGASKSTUDENTSTOMAKEUPADIALOGUEACCORDINGTOTHESITUATIONBELOWSUPPOSEYOUWEREACITIZENINACOASTALCITYINCHINA，SHARKHUNTISASERIOUSPROBLEMINYOURPROVINCETRYTOPERSUADETHELOCALGOVERNMENTTOTAKEACTIONTOPROTECTWILDLIFEINAPOLITEWAYWITHTHEHELPOFTHEFOLLOWINGEXPRESSIONSIDONTTHINKITISWISETOITWOULDBEBETTERIFWEITISAGOOD/WISEIDEATOISUPPOSEITISRIGHTIWONDERIFWHYNOTWEDBETTERSTEP4HOMEWORKWRITEAPERSUASIVELETTERTOTHELOCALGOVERNMENTTOCONTROLTHEIMPROPERHUNTS备课资料1KILLERWHALES精品文档2016全新精品资料全新公文范文全程指导写作独家原创5/8COMMONNAMEKILLERWHALESCIENTIFICNAMEORCINUSORCASIZEFEMALESCANREACHLENGTHSUPTO24FEETANDWEIGHBETWEEN3000TO8000LBMALESCANREACHLENGTHSUPTO27FEETANDCANWEIGHUPTO12000LBCALVESAREABOUT8FEETLONGAND300TO400POUNDSATBIRTHWHEREARETHEYFOUNDFROMTHENORTHPOLETOTHESOUTHPOLEFROMTHEINDIANOCEANTOTHEATLANTIC，KILLERWHALESAREFOUNDINALLOCEANSOFTHEWORLDWHATDOTHEYEATHOWDOTHEYGETANAMELIKE“KILLERWHALE”KILLERWHALESAREONEOFTHETOPPREDATORSINTHESEAASAGROUP，KILLERWHALESAREKNOWNTOEATFISH，SQUID，SEALS，SEALIONS，PENGUINS，EVENOTHERWHALESBUT，KEEPINMIND，ITWOULDBEDIFFICULTFORAKILLERWHALEOFFTHECOASTOFCALIFORNIATOEATAPENGUINKILLERWHALESEATTHEFOODORPREYTHATSAVAILABLETOTHEMFOREXAMPLE，AKILLERWHALETHATL精品文档2016全新精品资料全新公文范文全程指导写作独家原创6/8IVESINTHENORTHERNPACIFICCANHUNTHARBORSEALS，CALIFORNIASEALIONS，ANDAVARIETYOFFISHAKILLERWHALEINTHEANTARCTICCOULDFINDWEDDELLSEALS，LEOPARDSEALS，ANDPENGUINSRESEARCHERSSTUDYINGKILLERWHALESINTHENORTHWESTPACIFICHAVEFOUNDTHATSOMEPODSFEEDPRIMARILYONFISHANDOTHERSSEEMTOPREFERMARINEMAMMALSAKILLERWHALEUSESITSSHARPTEETHTOCATCHITSPREYKILLERWHALEHIGHLIGHTSSCIENTISTSHAVEDETERMINEDTHATKILLERWHALESCANLIVEAMAXIMUMOF3EARSHOWBYLOOKINGATACROSSSECTIONOFAKILLERWHALESTOOTHKILLERWHALES，LIKEOTHERMARINEMAMMALS，PRODUCEAPERIODICGROWTHLAYERONTHETEETHBYCOUNTINGTHESELAYERS，SCIENTISTSCANESTIMATETHEANIMALSAGEYOUCANTELLANADULTMALEFROMANADULTFEMALEBYTHESHAPEOFTHEIRDORSALFINTHISISAMALEPHOTOBELOW，HOWDOWEKNOWAMALESFINISVERYTALLUPTO6FEETTALLANDTRIANGULARSHAPEDAFEMALEISSHORTER3FEETANDCURVESBACKTOWARDTHEDORSALFINSEETHEPICTUREOFTHEMOTHER/CALFABOVE2THEEARTHSOCEANSCANREACHDEPTHSOFUPTO11000METERS精品文档2016全新精品资料全新公文范文全程指导写作独家原创7/8THATISDEEPENOUGHTOCOVERMTQOMOLANGMATHEOCEANSAREINCREDIBLYLARGEANDCONTAINSEVERALDIFFERENTHABITATSTOMAKEITEASIERTODESCRIBETHEVARIOUSPARTSOFTHEOCEANS，MARINESCIENTISTSUSUALLYDIVIDETHEOCEANSINTOFIVEZONESEACHZONEISDIFFERENTMAINLYASARESULTOFHOWMUCHSUNLIGHTREACHESITMOSTOFTHELIFEINTHEOCEANCANBEFOUNDINTHEFIRSTZONE，WHICHBEGINSATTHESURFACEANDGOESDOWNABOUT200METERSBECAUSETHEREISSUNLIGHTATTHISLEVEL，PLANTSAREABLETOGROWMARINEANIMALSSUCHASDOLPHINS，SHARKS，SEATURTLESANDSEALIONS，ANDOFCOURSEAVARIETYOFFISH，LIVEINTHESUNLITPARTOFTHEOCEANITISDIFFICULTTOHIDEFROMOTHERANIMALSINTHISAREATHESECONDZONESTARTSAT200METERSANDGOESDOWNTOABOUT1000METERSSOMESUNLIGHTCANREACHTHISLEVEL，BUTITISNOTENOUGHFORPLANTSTOGROWBECAUSETHISZONEISRELATIVELYDARK，MANYOFTHECREATURESTHATLIVEHEREAREABLETOMAKELIGHTWITHTHEIRBODYTHELIGHTFROMTHESEANIMALSMAKESTHEWATERLOOKLIKEASKYWITHMOVINGSTARSINITTHETHIRDZONEOFTHEOCEANISDARKTHISPLACE，ABOUT3000METERSDEEP，MAYNOTSEEMALIKELYHABITAT，BUTTHEREAREMORECREATURESHERETHANONEMIGHTTHINKMOSTOFTHEANIMALSTHAT精品文档2016全新精品资料全新公文范文全程指导写作独家原创8/8LIVEHEREAREBLACKORREDBECAUSEOFTHELACKOFLIGHTBELOW4000METERS，THETEMPERATUREISNEARFREEZINGANDTHEREISNOLIGHTATALLINFACT，THEZONEISSODARKANDEMPTYTHATSCIENTISTSNAMEDTHISZONEAFTERTHEGREEKWORDFOR“NOBOTTOM”THEREISNOTMUCHLIFETOBEFOUNDINTHISCOLDANDUNPLEASANTPARTOFTHEOCEAN，BUTSOMESMALLCREATURESSTILLMANAGETOSURVIVEHEREDESPITETHEHIGHWATERPRESSURETHEVERYDEEPESTPARTOFTHEOCEANISFOUND2000METERSFURTHERDOWNATTHISDEPTH，THEWATERPRESSUREISEXTREMELYHIGHAN
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