英语考试作文GRE写作Issue部分素材分享保护生态学

英语考试作文GRE写作Issue部分精选素材分享之保护生态学在GRE作文部分的考试中写出优异的文章，论据素材是重要的一环。好的论据不单能帮助你支撑看法，增强说服力，还可以表现出考生在阅读量上的累积和深沉扎实的语言功底基础。特别是ISSUE作文，更是需要大批好素材作为贮备，才能保证考生不论遭受那种题目，都能应付自如地达成一篇高分作文的写作。为大家整理了GREISSUE作文各种题目的精选优良素材，一同来看吧。美国政府的环保政策Thegovernment?senvironmentalprogramsareworkingwell,accordingtoEPAadministratorWilliamK.ReillyintheGreenThumbofCapitalism:TheEnvironmentalBenefitsofSustainableGrowth.Solidgovernmentalprogramshavebeendevelopedfortheimprovementoftheenvironment,indicatesReilly;severalsituationsquantifyitssuccess.AccordingtoReilly,thegovernmentiscreatingadequatemarketincentivestocurbpollution,encourageenergyefficiencyandwastereductionthroughlow-costprograms,inconjunctionwiththeprivatesector.Tohiscredit,Reillycitessomepowerfulprogramswhichmaymakeatleastshort-termenvironmentalandeconomicsuccess:bioremediation,telecommuting,curtailingemissionsandreusingresources.However,Reillyseemstofollowapredictablegovernmentalpatterntoavoiddiscussionofthesavoredtruckingandnuclearindustries(industrieswithnotoriouslypowerfullobbyingabilities),amongothers.Rather,hefocusesontheaftermathoftheExxon-Valdezcleanupcatastrophe.Itisnotonlycuriousthatacatastrophecouldbelistedasasuccessinthelargerschemeofenvironmentalissues,italsodoesnotaddresstheaspectofmakingacorporationmoreaccountableforitsfailures,orevendiscusswhatchangeshavebeenmadeintheoilindustrytopreventsuchcatastrophesfromoccurringagain.Additionally,theideathataccountingforthenationalwell-beingbemeasuredbysomeotherbean-countingsystembesidestheGNPandNNPreallyavoidsconsiderationsofcommonsense.Forexample,ifdiscontinuingusageofCFCswillenabletherestorationoftheozonelayer,itfollowsthatproperpolicy-makingwouldincludethediscontinuanceofCFCs.Bean-countingdoesnotprovideforthislogicalrelationship.Reillyespousesthethoughtthatcapitalismisnotathreattotheenvironment;heindicatesthatitsmechanismsactuallyencouragedecisionsthatrespectenvironmentalvalues.HeevidencesthatthesituationintheUnitedStatesisexemplaryincomparisontothird-worldcountiesinSouthAmericaandintheformerUSSR.保护生态学的看法Conservationbiology,orconservationecology,isthescienceofanalyzingandprotectingEarth?sbiologicaldiversity.Conservationbiologydrawsfromthebiological,physicalandsocialsciences,economics,andthepracticeofnatural-resourcemanagement.Conservationecologyaddressespopulationdynamicsissuesassociatedwiththesmallpopulationsizesofrarespecies(e.g.,minimumviablepopulations).Theterm“conservationbiology”referstotheapplicationofsciencetotheconservationofgenes,populations,species,andecosystems.Conservationbiologyisthescientificstudyofthephenomenathataffectthemaintenance,loss,andrestorationofbiologicaldiversity.Forthehistoryofbiodiversityconservationandvolunteeractivity,seeconservationmovement.保护生态学的历史Inthe19thcenturyactionsintheUnitedKingdom,theUnitedStatesandcertainotherwesterncountriesemphasizedtheprotectionofhabitatareaspursuanttovisionsofsuchpeopleasJohnMuirandTheodoreRoosevelt.Itwasnotuntilthemid-20thcenturydideffortsarisetotargetindividualspeciesforconservation,notablyeffortsinbigcatconservationinSouthAmericaledbytheNewYorkZoologicalSociety.Bythe1970s,ledprimarilybyworkintheUnitedStatesundertheEndangeredSpeciesActalongwithBiodiversityActionPlansdevelopedinAustralia,Sweden,theUnitedKingdom,hundredsofspecificspeciesprotectio