《英语听力教程3》听力原文与答案

《英语听力教程3》听力原文与答案《英语听力教程3》答案与听力材料UNIT1PartI GettingreadyA.B.Keys:1:burningoftheforests/treeremoval(deforestation)/reductionoftheworld'srainforests2:globalwarming/greenhouseeffect/emissionsofCO2PartII TheEarthatrisk(I)A.Keys:1.a.Morepeople--------morefirewood----fewertreesb.Moredomesticanimals------moreplants-----feweravailableplantsa,b--Moredesert----movesouth-----desrttexpandingsouth----nograss2.Growingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Butifthereisn'tenoughrainthecropsdon'tgrow.  3.Peopletrytogrowfoodtosupportthemselvesortocreaterancheswherecattlecanberaised,ortogethardwoodforexport,ortomakewayforanironoremineB.Keys:1:SaharaDesert2:NorthAmerica&mostofEurope3:topsoilblowingaway4:tropicalforestsdestruction5:animal/plantspeciesbecomingextinct6:climatechangeforthewholeworldPartIII TheEarthatrisk(II)A.Keys:1:Treeswouldholdrainfallintheirroots.Whenforestsinthehigherup-riverhavebeendestroyed,alltherainthatfallsinthemonsoonseasonflowsstraightintotheriverandstartstheflooding.2:Heimpliesthatsomenationalgovernmentsjustconsidertheresultsoftheirpoliciesinthenearfuture,orjustthinkasfaraheadasthenextelection.B.Keys:1:floodinginBangladesh2:Actiontobetaken3:populationcontrolPartIVMoreaboutthetopic:TheEffectsofGlobalWarmingKeys:1:Warmingupoftheworld2:Effectsofglobal3:reducedpotentialforfoodproduction4:changeofpatternsofhear-relatedfoodpoisoning,etc.PartVDoyouknow…?A.Keys:1:F2:F3:F4:F5:TB.Keys:Dos1:yourtowels2:Cutout3:awall-fire4:fridge5:waituntilyou'veafullload6:acompletemealDon’ts7:ironeverything8:theironup9:thekettle10:tothebrim11:hotfoodTapescriptPartI GettingreadyA.B.1.TheAmazonforestsaredisappearingbecauseofincreasedburningandtreeremoval.InSeptember,satellitepicturesshowedmorethan20000firesburningintheAmazon.Expertssaymostofthesefiresweresetbyfarmers.Thefarmerswereattemptingtoclearlandtogrowcrops.TheWorldWildlifeFundsaysanotherseriousproblemisthattoomanytreesintheAmazonrainforestarebeingcutdown.TheWorldWildlifeFundsaysthefiresshowtheneedforurgentinternationalactiontoprotecttheworld'srainforests.Thegroupwarnsthatwithoutsuchactionsomeforestscouldbelostforever.2.EnvironmentalissuesswelltothefullinBerlinthisweek,fortheUNspongsoredconferenceonglobalwarmingandclimatechangeisthefirstsuchmeetingsincetheRiosummitthreeyearsago.WithscientistsandgovernmentsnowgenerallyreadytoacceptthattheearthclimateisbeingaffectedbyemissionsofCO2andothergreenhousegases,overahundredcountriesaresendingdelegations.ButhowmuchprogresshasbeenmadeimplementingthegreenhousegasreductiontargetagreedonatRio?SimonDaryreports...PartII TheEarthatrisk(I)A.I(Interviewer): BrianCowlesistheproducerofanewseriesofdocumentariescalled"TheEarthatRisk"whichcanbeseenonChannel4laterthismonth.Eachprogramdealswithadifferentcontinent,doesn'tit,Brian?    B(BrianCowles): That'sright.WewenttoAmerica,bothNorthandSouthandthenwewentovertoAfricaandSouth-EastAsia.   I: Andwhatdidyoufindineachofthesecontinents?  B: StartingwithAfrica,ourfilmshowstheimpactofthepopulationontheenvironment.Generallyspeaking,thishascausedtheSaharaDeserttoexpand.It'sabitofaviciouscirclewefind.Peoplecutdowntreesforfirewoodandtheirdomesticanimalseatalltheavailableplants—andsoconsequentlytheyhavetomovesouthastheSaharaDesertexpandsfurthersouth.Imean,soonthewholeofMaliwillbecomeadesert.AndinEastAfrica:herethegrasslandsaresupportingtoomanyanimalsandtheresultis,ofcourse,there'snograss—nothingfortheanimalstoeat. I: Isee.AndthenextfilmdealswithNorthAmerica?B: That'sright.IntheUSA,asyouknow,intensiveagriculturerequiresaplentifulsupplyofrainforthesecropstogrow,Imeanifthereisn'tenoughrainthecropsdon'tgrow.Andgrowingcropsstabilizesoil,withoutthemthetopsoiljustblowsaway.Thisisalsotrueforanyregionthatisintenselyfarmed—mostofEurope,forexample. I: AndwhatdidyoufindinSouthAmerica?B: InSouthAmerica(asinCentralAfricaandSouthernAsia)tropicalforestsarebeingcutdownatanalarmingrate.ThisisdonesothatpeoplecansupportthemselvesbygrowingfoodortocreaterancheswherecattlecanberaisedtobeexportedtoEuropeorAmericaastinnedmeat.Theproblemisthatthesoilissopoorthatonlyacoupleofharvestsarepossiblebeforethisverythinsoilbecomesexhausted.Anditcan'tbefedwithfertilizerslikeagriculturallandinEurope.Forexample,inBrazilin1982anareaofjunglethesizeofBritainandFrancecombinedwasdestroyedtomakewayforanironoremine.HugenumbersoftreesarebeingcutdownforexportsashardwoodtoJapan,Europe,USAtomakethingslikeluxuryfurniture.Theseforestscan'tbereplaced—theforestsoilisthinandunproductiveandinjustafewyears,ajunglehasbecomeawasteland.Tropicalforestscontainrareplants(whichwecanuseformedicines,forexample)andanimals—oneanimalorplantspeciesbecomesextincteveryhalfhour.Theseforesttreesalsohaveworldwideeffects.Youknow,theyconvertcarbondioxideintooxygen.Theconsequenceofdestroyingforestsisnotonlythattheclimateofthatregionchanges(becausethereislessrainfall)butthischangeaffectsthewholeworld.Imean,overhalftheworld'srainforesthasbeencutdownthiscentury.PartIIITheEarthatrisk(II)A.I: So,Brian,wouldyouagreethatwhatwegenerallythinkofasnaturaldisastersareinfactman-made?B: Yes,byandlarge.Imean,obviouslynothurricanesorearthquakes,buttakeflooding,forexample.Practicallyeveryyear,thewholeofBangladeshisfloodedandthisisgettingworse.Youknow,thecauseisthatforestshavebeencutdownupinNepalandIndia,Imeanhigherup-riverintheHimalayas.Treeswouldholdrainfallintheirroots,butifthey'vebeencutdownalltherainthatfallsinthemonsoonseasonflowssraightintotheriverGangesandfloodsthewholecountry.ThereasonforfloodinginSudanisthesame—theforestshigheruptheBlueNileinEthiopiahavebeendestroyedtoo.I: Well,thisallsoundsterriblydepressing.Um...Whatistobedone?Imean,cananythingbedone,infact?B: Yes,ofcourseitcan.First,thenationalgovernmentshavetobeforward-lookingandconsidertheresultsoftheirpoliciesintenortwentyyears,notjustthinkasfaraheadasthenextelection.Somehow,allthecountriesintheworldhavetoworktogetheronaninternationalbasis.Secondly,thepopulationhastobecontrolledinsomeway:therearetoomanypeopletryingtoliveofftoolittleland.Thirdly,wedon'tneedtropicalhardwoodtomakeourfurniture—it'saluxurypeopleintheWestmustdowithout.Softwoodsarejustasgood,lessexpensiveandcanbeproducedonenvironment-friendly"treefarms",wheretreesarereplacedatthesameratethattheyarecutdown.I: And,presumably,educationisimportantaswell.Peoplemustbeeducatedtorealizetheconsequencesoftheiractions?B: Yes,ofcourse.I: Well,thankyou,BrianB.I: So,Brian,wouldyouagreethatwhatwegenerallythinkofas...er...aser...naturaldisastersareinfactman-made?B: Yes,byandlarge...er...Imean,obviouslynothurricanesorearthquakes,buttakeflooding,forexample.Imean,practicallyeveryyear,thewholeofBangladeshisfloodedandthisisgettingworse.Youknow,thecauseisthatforestshavebeencutdownupinNepalandIndia...Imean...higherup-riverintheHimalayas.Trees...er...wouldholdrainfallintheirroots,butifthey'vebeencutdownalltherainthatfallsinthemonsoonseasonflowsstraightintotheriverGangesandfloodsthewholecountry.ThereasonforfloodinginSudanisthesame—theforestshigheruptheBlueNileinEthiopiahavebeendestroyedtoo.I: Well,thisallsoundsterriblydepressing.Um...whatistobedone?Imean,cananythingbedone,infact?B: Yes,ofcourseitcan...er...first,thenationalgovernmentshavetobeforward-lookingandconsidertheresultsoftheirpoliciesintenortwentyyears,notjustthinkasfaraheadasthenextelection.Somehow,allthecountriesintheworldhavetoworktogetheronaninternationalbasis.Secondly,thepopulationhastobecontrolledinsomeway:therearetoomanypeopletryingtoliveofftoolittleland.Thirdly,wedon'tneedtropicalhardwoodtomakeourfurniture—it'saluxurypeopleintheWestmustdowithout.Softwoodsarejustasgood,lessexpensiveandcanbeproducedonenvironment-friendly"treefarms",wheretreesarereplacedatthesameratethattheyarecutdown.I: And,presumably,educationisimportantaswell.Peoplemustbeeducatedtorealizetheconsequences...um...oftheiractions?B: Yes,yesofcourse.I: Well,thankyou,Brian.PartIVMoreaboutthetopic:TheEffectsofGlobalWarmingTheworldiswarmingup.Weknowthisbecauseaveragetemperaturesarethehighestsincescientistsstartedmeasuringthem600yearsago.Theincreaseisabout0.2℃everyyear.Thismayseemveryslight,butweknowthatslightchangesintemperaturecanhaveabigeffectonotherthings.Mostscientistsnowbelievethisglobalwarmingisduetohumanactivity.JeffJenkinsisheadofBritain'sClimatePredictionCenter.Heexplainshowglobalwarmingcanhappen."Sunlightstrikestheearthandwarmsitup.Atthesametimeheatleavestheearth,butpartofthatistrappedbycarbondioxideandothergasesintheearth'satmosphere.Thathasbeenhappeningeversincetheearthwasformed.Butthefearisthatincreasingamountsofcarbondioxideproducedbyindustrialprocessesandtransportandsoonwillleadtoagreaterwarmingoftheearth'ssurface.Sothat'sthegolbalwarmingthatpeopleareconcernedabout."Peoplearemostconcernedabouttheuseoffossilfuels.Fossilfuelsareoil,coal,woodandsoon.Whentheseburn,theyproducethegascarbondioxide.Manyscientistsagreethatanincreaseintheamountofcarbondioxideandsomeofthegasesintheatmospherewillincreasetheamountofwarming.Computersarebeingusedtopredictwhatthismaymean.Theyshowedthattherecouldbegreatchangesinrainfallandtheriseinthesealevelasicecapsinthenorthandsouthpolesmelt.ThiscouldhaveaseriouseffectonagricultureaccordingtoProf.MartinPerryofUniversityCollegeinLondon.Hesaysitcouldbecomemoredifficulttogrowfoodinthetropicsatlowerlatitudesnearertotheequator."Themostclearpatternemergingisthepossibilityofreducedpotentialproductioninlowerlatituderegions,andmostgenerallyspeaking,increasedpotentialinhigherlatituderegions.Lowerlatituderegionsarealreadywarm,toputitextremelysimply,andplantstherearequiteneartheirlimitsofheatanddroughtstress.Anincreaseintemperatureorreductioninmoisturewouldplacelimitsoncropgrowth."Woman:Globalwarmingcouldreducefoodproductioninlowerlatituderegions.Lowerlatituderegionsarealreadywarm.Globalwarmingcouldputmorestressonplansandplacelimitsoncropgrowth.Foodproductionisonlyoneareathatcouldbeaffected.Therecouldalsobehealthandsocialproblems.Prof.AntonyMacMichaeloftheLondonSchoolofHygieneandTropicalMedicinebelievesthatsomeruralareasarealreadysuffering.Andtheinsectsandbacteriacouldspreaddiseasemoreeasily."Alreadyanumberofruralpopulationsaroundtheworldaresufferingfromthedeclineofagriculturalsystems.Climatechangewouldaddtothis.Andwewouldexpectthatitwouldacceleratethefloodofenvironmentalrefugeesaroundtheworld.Butitincludesnotjustthefoodproductionsystems,butthepatternsofdistributionofinsectsandinfectiveagentsaroundtheworld.Itincludeslikelyeffectsonpatternsofhear-relatedfoodpoisoning,watercontaminationanddiarrheadiseases,lotsofthingslikethisthatwouldrespondsensitivelytochangesinclimate."Woman:Globalwarmingcouldaffectthedistributionofinsects.Globalwarmingcouldchangepatternsofheat-relatedfoodpoisoning.Manycountriesnowagreethatsomethingmustbedonetoreducethedangerofglobalwarming.Butaworldwideagreementonloweringtheproductionofcarbondioxidehasbeendifficulttoreach.Thisisbecausemanyeconomiesdependonfossilfuelslikeoil.Scientistsbelieveit'snowthepoliticiansineveryregionoftheworldwhoneedtotakeaction.PartVDoyouknow…?EnvironmenthastakenratherabackseatpoliticallysincetheEarthsummitinRiodeJaneironearly5yearsago.Buttheproblemsthatmeetinghighlightedhadnotgoneaway.Oneenvironmentalthinktank—theInternationalFoodPolicyResearchInstitute—hasbeenlookingatthefutureofwateranditsreportreflectsgrowingconcernatthehugeleapinusageoverthepastfewyears.Insomepartsoftheworld,waterconsumptionhasincreasedfivefold.Andtheinstitute,knownbyitsinitialsIFPRI,saysshortagescouldsoonbecomethetriggerforconflictandamajorbarriertofeedingtheworld'sgrowingpopulation.Here'sRichardBlackofourScienceUnit."It'softenbeensaidthatwaterratherthanoilwillbethecauseofwarfareinthenextcentury.AccordingtotheIFPRIreport,thetimewhenthathappensmightnotbefaraway.Thenumberofpeopleaffectedbywatershortagewillincreasetenfoldoverthenext30years,itsays,whichcouldwellleadtolargescaleconflicts.Themainreasonwhywaterisbecomingascarceresourceisagriculture,whichnowaccountsfor70%ofwaterconsumptionworldwide,90%insomedevelopingcountries.Countlessfarmershaveswitchedfromgrowingindigenouscropsforthehomemarkettohighyieldexportvarieties,whichinevitablyneedfarmorewater.ButtheIFPRIreportsaysthatinsomeregionswatershortageisnowthesinglebiggestimpedimenttofeedingthepopulation.Waterscarcityalsoleadstowaterpollution.IntheIndianStateofWestBengal,forexample,overextractionofwaterfromboreholeshasledtoarsenicpoisoningwhichisestimatedtohaveaffectedtwomillionpeoplesofar.ButtheIFPRIreportcallsforbetterwatermanagementworldwideincludingfinancialincentivestoencourageconservation."ThatreportbyRichardBlackofourScienceUnit.Unit2PartI GettingreadyA.B.Keys:1:InternationalUnionfortheConservationofNature,UnitedNations,wildlife,policies2:ConventiononInternationalTradeinEndangeredSpecies,trade,animalsandplants,1975,prohibits,8000,controls,300003:UnitedNationsEnvironmentalProgram,leadership,environment,qualityoflife4:WorldWideFundforNature(formerlyWorldWildlifeFund),1961,SaharaDesert,NorthAmerica&mostofEurope,topsoilblowingawayC.Keys:1:22:43:54:1,65:3Questions:1:Theyworktoconservenaturalareasthatcontainendangeredwildlife2:Theyarecampaigningtoprovideseasanctuariesforsomeoftheseendangered   species.Protected-nestingsitesforturtleshavebeensetup3:Itreferstotheplacesofsafetyintheseawhereseaanimalsareprotectedandallowedtolive freelyPartII ChristmasbirdcountsA.Keys:1:Jan.3rd2:morethan40000volunteers3:16004:a15milediameter5:anAmericanartist6:theirnaturalhabitats7:thelate1800sB.Keys:1:start2:sponsored3:outsidecountingbirds4:experiencedbirdwatchers5:anyonethatisinterestedorconcerned6:scheduled7:10peopletakingpart8:15milediametercircle9:thetotalbirdpopulations10:thenumberofbirds11:thelongest-runningbirdcensus12:undefinedPartIII DolphincaptivityA.B.Keys:1:12:33:44:55:26:Dolphinsshouldbekeptincaptivity.7:Thereareeducationalbenefitsofkeepingmarinemammalsincaptivity.C.Keys:1:stress(family-oriented)2:sonarbouncingoff3:averageageofdeath;lifegettingbetterforcaptivedolphins4:naturalbehabiorpatterns-altered5:sufferingfromfracturedskulls,ribsorjaws6:can'tlearnfromanimalsinthewildhowtheyoperate,breed,whattheyneed,etc.PartIVMoreaboutthetopic:Birds----ASourceofWealthKeys:1：93002：Habitat3：warmerclimates4：300differentspecies5：colderclimates6：habitatalteration7：estheticvalue8：Birds'populationPartVDoyouknow…?Keys:1:oneandone-halfmillion2:20times3:1004:400005:65million6:35007:2millionsquaremiles8:3%9:200animalspecies10:100011:athird12:two-thirds13:three-quartersTapescriptPartI GettingreadyA: Hello,I'mcallingonbehalfoftheWorldWildlifeFund.B:Thewhat?A: TheWorldWildlifeFund.Ifyou'vegotafewminutesI'dliketotellyouwhatthatmeans.B: Oh,allright.A: Weworktoconservenaturalareasthatcontainendangeredwildlife.Theseas,forexample,havebecomepollutedbytheindustrializedworld;whalesarebeinghuntedtoextinction;turtlesarerolledofftheireggswhentheycomeashoretobreedorareslaughteredfortheirmeatandoil…B: Oh.A: Crocodilesarekilledtomakehandbagsandshoes;walrusesarehunted fortheirivory.B: Isee.A: Sealsarebludgeonedtodeathtoprovidefurcoatsandthethreatofextinctionhangsoverseveralspeciesofwhale,dolphinandporpoise.B: Really.A:Wearenowcampaigningtoprovideseasanctuariesforsomeoftheseendangeredspecies.B: Veryinteresting.A: Aidedbyourcampaign,protectednestingsitesforturtleshavealreadybeensetup.Asyoucansee,thisisveryvaluableworkandIwonderthereforeifyou'dliketomakeadonation?PartII ChristmasbirdcountsJohnJamesAudubonwasanAmericanartistintheearly1800s,whoillustratedbirdsintheirnaturalhabitats.TheSocietynamedafterhimwasfoundedinthelate1800sbyconservationistsconcernedwiththedeclineofbirds,whichwerebeingkilledsotheirfeatherscouldbeusedinthemanufactureofwomen'shats.SponsoredbytheNationalAudubonSociety,morethan40000volunteerswillbeoutsidecountingbirdsfromtodayuntilJanuary3rd.Volunteersfromall50statesoftheUnitedStates,everyCanadianprovince,partsofCentralandSouthAmerica,Bermuda,theWestIndiesandPacificislandshavebeguntocountandrecordeveryindividualbirdandbirdspeciesobservedduringthetwoandonehalfweekperiodofthecount.JeffreyLeBaronistheNationalAudubonSociety'sChristmasBirdCounteditor.Hesaysthecountisthelongest-runningbirdcensusinornithology.Thisyear,accordingtoMr.LeBaron,morethan1600separatebirdcountshavebeenscheduled.Somewouldhaveasfewas10peopletakingpart,otherswithhundreds.ThelogisticsoftheChristmasbirdcount,headds,aresimple."Eachindividualcountisinacircle.It'sa15milediametercircle,um,aroundtheexactcenterpoint.Andit'salwaystheexactlysameareathat'sdoneeveryyear,usually,evenonthesameweekendduringthecountperiod.Andwhattheidealwouldbe,whichisvirtuallyimpossible,isthiscensus:everysingleindividualbirdwithinthatcircleonthecountday."Mr.LeBaronsaysexperiencedbirdcounterscangetagoodideaofthetotalbirdpopulationswithinthecountcirclebasedonthenumberofbirdstheyactuallysee.Theeditorpointsout,however,thatthecountsarenotonlyforexperiencedbirdwatchers."Anybodythatisinterestedorconcernedcanbecomeinvolved.Beginnerswillgooutinapartywithexperiencedindividualswhoknowboththeareaandthebirdsinthearea,inthefieldwheremoreeyesandearsarebetter.Andthenanybodycanpointoutabird,andsomeoneinthefieldwillalwaysbeabletoidentifythebird."PartIII DolphincaptivityA:AplannedaquaticparkinDenverisraisingtheireofanimalrightsactivistswhoobjecttoaproposaltoincludeacaptivedolphindisplay.AlthoughofficialsforColorado'sOceanJourneyssaytheyhaveyettomakeafinaldecisionontheissue,localandnationalactivistshavealreadyinstigateda"NoDolphinsinDenver'campaign.AsColoradoPublicRadio'sPeterJonesreports,thebattlelineshavebeenclearlydrawn.P:RickTroud,aformernavydolphintrainerbasedinFlorida,istakinganactiveroleinthe"NoDolphins"campaign.R:Averageageinthewildrangesanywhereinsomeofthestudiesbetween30and40yearsofage.Incaptivity,youcanexpectadolphintolivemaybe5.13years,andevery7yearsincaptivity,thedolphinpopulationisdead.P:AccordingtoTroud,therearemanyreasonswhydolphinscan'tlivefulllivesincaptivity.R:Ifyoutakealookatwheretherealdolphinisintherealocean,youfindthedolphinwhoswims40milesaday,isveryfamily-oriented.Theseanimalsareseparatedfromtheirmothers;that'sastress.Youputtheminaconcretetankwheretheirsonarbouncesoffofwalls,theycan'tswiminthesameamountoftimeanddirectionthattheycaninthewild.P:Environmentalistandoceanexplorer,JeanMichelCousteau:J:Therearesomeanimalswhichrejectcaptivityrightaway,andthey'reverysuicidal.I'vehadoneofthoseinmyownarmsformanydays.ThenextmorningwhenIcametotakecareofhim,hewasdead.Andwhathe'ddonewastoswimasfastashecouldfromoneendofthepoolon...totheothersideanddestroyedhisheadbyhittingthewall.Theyhaveaverysophisticatedbrain.Idon'tthinkwehaveanyrightstoplaywiththelivesoftheseanimals.P:Cousteau'santi-captivitypositionischallengedbyDr.DeborahDuffield,abiologyprofessoratPortlandStateCollegeinOregon.Her1990studycomparedcaptivedolphinstothewildpopulationofSarasotaBay,Florida.Amongotherfindings,thestudyshowedlittleifanydifferenceintheaverageageofdeath.AndDuffieldsayslifeisgenerallygettingbetterforcaptivedolphins.D:ThecensusdatasaythateverytimeIdoacensus,I'vegotolderandolderanimalsinitaswellasthisnormalagedistributionthatwe'vebeenlookingat.Somyfeelingisthatthetrendincaptivityhasbeenthatthegroupofanimalsthatwe'refollowingaregettingolder,andiftheycontinuetodothatoverthenextfiveyears,theywillthenindeedbeolderthanthewildpopulation.P:Thereisalsoadebateovertheeducationalbenefitsofkeepingmarinemammalsincaptivity.AccordingtoDuffield,captivedolphinsplayanimportantroleinourbasicunderstandingoftheanimals.D:Ifirmlybelievethatwecannotlearnanythingaboutorganismsthatwesharethisworldwithifwedonotunderstandhowtheyliveinanenvironment,andwhattheydo,andthatwatchingthemgobyinthewildwillnotdoit.Icannottellwhatananimalneeds,unlessIknowhowitoperates,howitbreeds,whatitneedsmetabolically,andIcan'tlearnthatfromanimalsinthewild.P:ButTroudsaysthedolphindisplaysareanti-educationalbecausetheanimals'naturalbehaviorpatternsarealteredbycaptivity.R:Inthewild,youdon'thavedolphinswhobeateachothertodeath.TherearenodolphinsthatI'veeverseenstrandedonthebeach,whoaresufferingfromfracturedskulls,fracturedribsorfracturedjaws,asisthecaseincaptivity.P:TheOceanJourneyboardwilltakeallfactorsintoconsiderationbeforemakingafinaldecisiononwhethertoincludedolphinsinthepark.ForColoradoPublicRadio,I'mPeterJones.PartIVMoreaboutthetopic:Birds----ASourceofWealthMr.LeBaronsaysther