版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
第一部考真题(1990年——2014年1990年英译汉Peoplehavewonderedforalongtimehowtheirpersonalities,andbehaviorsareformed.Itisnoteasytoexplainwhyonepersonisintelligentandanotherisnot,orwhyoneis第一部考真题(1990年——2014年1990年英译汉Peoplehavewonderedforalongtimehowtheirpersonalities,andbehaviorsareformed.Itisnoteasytoexplainwhyonepersonisintelligentandanotherisnot,orwhyoneiscooperativeandanotheriscompetitive.Socialscientistsare,ofcourse,extremelyinterestedinthesetypesofquestions.(61)Theywanttoexplainwhywepossesscertaincharacteristicsandexhibitcertainbehaviors.Therearenoclearanswersyet,buttwodistinctschoolsofthoughtonthematterhavedeveloped.Asonemightexpect,thetwoapproachesareverydifferentfromeachother.Thecontroversyisoftenconvenientlyreferredtoas‖naturevs.nurture‖.(62)Thosewhosupportthe―nue‖sideoftheconflictbelievethatourpersonalitiesandbehaviorpatternsarelargelydeterminedbybiologicalfactors.(63)Thatourenvironmenthaslittle,ifanything,todowithourabilities,characteristicsandbehavioriscentraltothistheory.Takentoanextreme,thistheorymaintainsthatourbehaviorispredeterminedtosuchagreatdegreethatwearealmostcompletelygovernedbyourinstincts.Thosewhosupportthe―nurture‖theory,thatis,theyadvocateeducation,areoftencalledbehaviorists.Theyclaimthatourenvironmentismoreimportantthanourbiologicallybasedinstinctsindetermininghowwewillact.Abehaviorist,B.F.Skinner,seeshumansasbeingswhosebehaviorisalmostcompletelyshapedbytheirsurroundings.Thebehavioristsmaintainthat,likemachines,humansrespondtoenvironmentalstimuliasthebasisoftheirbehavior.Letusexaminethedifferentexplanationsaboutonehumancharacteristic,intelligence,offeredbythetwotheories.Supportersofthe―nature‖theoryinsistthatwearebornwithacertainintheenvironmenthavemuchinfluenceonwhatisbasicallyapredeterminedcharacteristic.Ontheotherhand,behavioristsarguethatourintelligencelevelsaretheproductofourexperiences.(64)BehavioristssuggestthatthechildwhoisraisedinanenvironmentwheretherearemanystimuliwhichdevelophisorhercapacityforappropriateresponseswillexperiencegreaterintellectualThesocialandpoliticalimplicationsofthesetwotheoriesareprofound.IntheUnitedStates,blacksoftenscorebelowwhitesonstandardizedintelligencetests.Thisleadssome―nature‖proponentstoconcludethatblacksarebiologicallyinferiortowhites.(65)Behaviorists,incontrast,saythatdifferencesinscoresareduetothefactthatblacksareoftendeprivedofmanyoftheeducationalandotherenvironmentaladvantagesthatwhitesenjoy.Mostpeoplethinkneitherofthesetheoriescanyetfullyexplainhuman1991年英译汉Thefactisthattheenergycrisis,whichhassuddenlybeenofficiallyannounced,hasbeenwithusforalongtimenow,andwillbewithusforanevenlongertime.WhetherAraboilflowsfreelyornotitiscleartoeveryonethatworldindustrycannotbeallowedtodependonsofragileabase.(71)Thesupplyofoilcanbeshutoffunexpectedlyatanytime,andinanycase,theoilwellswillallrundryinthirtyyearsorsoatthepresentrateofuse.2/Newsourcesofenergymustbefound,andthiswilltaketime,butitisnotlikelytoresultinanysituationthatwilleverrestorethatsenseofcheapandplentifulenergywehavehadinthetimespast.Foranindefiniteperiodfromhereon,mankindisgoingtoadvancecautiously,andconsideritselfluckythatitcanadvanceatall.Tomakethesituationworse,thereisasyetnosignthatanyslowingoftheworld’spopulationisinsight.Althoughthebirthratehasdroppedinsomenations,includingtheUnitedStates,thepopulationoftheworldseemssuretopasssixbillionandperhapsevensevenbillionasthetwenty-firstcenturyopens.Thefoodsupplywillnotincreasenearlyenoughtomatchthis,whichmeansthatweareheadingintoacrisisinthematterofproducingandmarketingfood.Takingallthisintoaccount,whatmightwereasonablyestimatesupermarketstobelikeintheyear2001?Tobeginwith,Newsourcesofenergymustbefound,andthiswilltaketime,butitisnotlikelytoresultinanysituationthatwilleverrestorethatsenseofcheapandplentifulenergywehavehadinthetimespast.Foranindefiniteperiodfromhereon,mankindisgoingtoadvancecautiously,andconsideritselfluckythatitcanadvanceatall.Tomakethesituationworse,thereisasyetnosignthatanyslowingoftheworld’spopulationisinsight.Althoughthebirthratehasdroppedinsomenations,includingtheUnitedStates,thepopulationoftheworldseemssuretopasssixbillionandperhapsevensevenbillionasthetwenty-firstcenturyopens.Thefoodsupplywillnotincreasenearlyenoughtomatchthis,whichmeansthatweareheadingintoacrisisinthematterofproducingandmarketingfood.Takingallthisintoaccount,whatmightwereasonablyestimatesupermarketstobelikeintheyear2001?Tobeginwith,theworldfoodsupplyisgoingtobecomesteadilytighteroverthenextthirtyyears—evenhereintheUnitedStates.By2001,thepopulationoftheUnitedStateswillbeatleasttwohundredfiftymillionandpossiblytwohundredseventymillion,andthenationwillfinditdifficulttoexpandfoodproductiontofilltheadditionalmouths.(74)ThiswillbeparticularlytruesinceenergypinchwillmakeitdifficulttocontinueagricultureinthehighenergyAmericanfashionthatmakesitpossibletocombinefewfarmerswithhighyields.Itseemsalmostcertainthatby2001theUnitedStateswillnolongerbeagreatfoodexportingnationandthat,ifnecessityforcesexports,itwillbeatthepriceofbelttighteningathome.Infactasfooditemswillendtodeclineinqualityanddecreaseinvarietythereisverylikelytobeincreasinguseofflavouringadditives.(75)Untilsuchtimeasmankindhasthesensetoloweritspopulationtothepointwheretheplanetcanprovideacomfortablesupportforall,peoplewillhavetoacceptmore―unnaturalfood‖.1992年英译汉―negene‖atbestisanassumptiveconstruct—themeaningofthewordhasneverbeenclear.(71)Thereismoreagreementonthekindsofbehaviorreferredtobythetermthanthereisonhowtointerpretorclassifythem.Butitisgenerallyagreedthatapersonofhighintelligenceisonewhocangraspideasreadily,makedistinctions,reasonlogically,andmakeuseofverbalandmathematicalsymbolsinsolvingproblems.Anintelligencetestisaroughmeasureofachild’scapacityforlearningthekindsofthingsrequiredinschool.Itdoesnotmeasurecharacter,socialadjustmentphysicalendurancemanualskillsordesignedforsuchpurposes.(72)Tocriticizeitforsuchfailureisroughlycomparabletocriticizingathermometerfornotmeasuringwindvelocity.Theotherthingwehavetonoticeisthattheassessmentoftheintelligenceofanysubjectisessentiallyacomparativeaffair.(73)Nowsincetheassessmentofintelligenceisacomparativematterwemustbesurethatthescalewithwhichwearecomparingoursubjectsprovidesa―ald‖or―ar‖comparison.Itisherethatsomeofthedifficultieswhichinterestusbegin.Anytestperformedinvolvesatleastthreefactors:theintentiontodoone’sbest,theknowledgerequiredforunderstandingwhatyouhavetodo,andtheintellectualabilitytodoit.(74)Thefirsttwomustbeequalforallwhoarebeingcompared,ifanycomparisonintermsofintelligenceistobemade.Inschoolpopulationsinourculturetheseassumptionscanbemadefairandreasonable,andthevalueof3/testinghasbeenprovedthoroughly.Itsvaluelies,ofcourse,initsprovidingasatisfactorybasisforprediction.Nooneisintheleastinterestedinthemarksalittlechildgetsonhistest;whatweareinterestediniswhetherwecanconcludefromhismarkonthetestthatthechildwilldobetterorworsethanotherchildrenofhisageattaskswhichwethinkrequire―generalintelligence‖.(75)Onthewholesuchaconclusioncanbedrawnwithacertaindegreeofconfidence,butonlyifthechildcanbeassumedtohavehadthesameattitudetowardsthetestastheotherswithwhomheisbeingcompared,andonlyifhewasnotpunishedbylackofrelevantinformationwhich1993年英译汉(71)Themethodofscientificinvestigationisnothingbuttheexpressionofthenecessaryofworkingofthehumanmind;itissimplythemodebywhichallphenomenaarereasonedaboutandgivenpreciseandexactexplanation.Thereisnomoredifference,butthereisjustthesamekindofdifference,betweenthementaloperationsofamanofscienceandthoseofanordinaryperson,asthereisbetweentheoperationsandmethodsofabakerorofabutcherweighingouthisgoodsincommonscales,andtheoperationsofachemistinperformingadifficultandcomplexanalysisbymeanstestinghasbeenprovedthoroughly.Itsvaluelies,ofcourse,initsprovidingasatisfactorybasisforprediction.Nooneisintheleastinterestedinthemarksalittlechildgetsonhistest;whatweareinterestediniswhetherwecanconcludefromhismarkonthetestthatthechildwilldobetterorworsethanotherchildrenofhisageattaskswhichwethinkrequire―generalintelligence‖.(75)Onthewholesuchaconclusioncanbedrawnwithacertaindegreeofconfidence,butonlyifthechildcanbeassumedtohavehadthesameattitudetowardsthetestastheotherswithwhomheisbeingcompared,andonlyifhewasnotpunishedbylackofrelevantinformationwhich1993年英译汉(71)Themethodofscientificinvestigationisnothingbuttheexpressionofthenecessaryofworkingofthehumanmind;itissimplythemodebywhichallphenomenaarereasonedaboutandgivenpreciseandexactexplanation.Thereisnomoredifference,butthereisjustthesamekindofdifference,betweenthementaloperationsofamanofscienceandthoseofanordinaryperson,asthereisbetweentheoperationsandmethodsofabakerorofabutcherweighingouthisgoodsincommonscales,andtheoperationsofachemistinperformingadifficultandcomplexanalysisbymeansofhisbalanceandfinelygradedweights.(72)Itisnotthatthescalesintheonecase,andthebalanceintheother,differintheprinciplesoftheirconstructionormannerofworking;butthatthelatterismuchfinerapparatusandofcoursemuchmoreaccurateinitsmeasurementthantheformer.Youwillunderstandthisbetter,perhaps,ifIgiveyousomefamiliarexamples.73)Youhavebythehelpoftheseoperations,they,inasortofsense,managetoextractfromNaturecertainnaturallaws,andthatoutofthese,bysomespecialskilloftheirown,theybuilduptheirtheories.(74)Anditisimaginedbymanythattheoperationsofthecommonmindcanbebynomeanscomparedwiththeseprocesses,andthattheyhavetobeacquiredbyasortofspecialtraining.Tohearalltheselargewords,youwouldthinkthatthemindofamanofsciencemustbeconstituteddifferentlyfromthatofhisfellowmen;butifyouwillnotbefrightenedbyterms,youwilldiscoverthatyouarequitewrong,andthatalltheseterribleapparatusarebeingusedbyyourselveseverydayandeveryhourofyourlives.Thereisawell-knownincidentinoneofMoliere’splays,wheretheauthormakestheheroexpressunboundeddelightonbeingtoldthathehadbeentalkingprose(散文)duringthewholeofhislife.Inthesameway,Itrustthatyouwilltakecomfort,andbedelightedwithyourselves,onthediscoverythatyouhavebeenactingontheprinciplesofinductiveanddeductivephilosophyduringthesameperiod75)Probablythereisnotoneherewhohasnotinthecourseofthedayhadoccasiontosetinmotionacomplextrainofreasoning,oftheverysamekind,thoughdifferingdegree,asthatwhichascientificmangoesthroughintracingthecausesofnatural1994年英译汉Accordingtothenewschoolofscientists,technologyisanoverlookedforceinexpandingthehorizonsofscientificknowledge.(71)Sciencemovesforward,theysay,notsomuchthroughtheinsightsofgreatmenofgeniusasbecauseofmoreordinarythingslikeimprovedtechniquestools.(72)―Inshort‖,aleaderofthenewschoolcontends,―thescientificrevolution,aswecall4/waslargelytheimprovementandinventionanduseofaseriesofinstrumentsthatexpandedthereachofscienceininnumerabledirections.‖(73)Overtheyears,toolsandtechnologythemselvesasasourceoffundamentalinnovationhavelargelybeenignoredbyhistoriansandphilosophersofscience.ThemodernschoolthathailstechnologyarguesthatsuchmastersasGalileo,Newton,Maxwell,Einstein,andinventorssuchasEdisonattachedgreatimportanceto,andderivedgreatbenefitfrom,craftinformationandtechnologicaldevicesofdifferentkindsthatwereusableinscientificexperiments.Thecenterpieceoftheargumentofatechnology-yes,genius-noadvocatewasananalysisofGalileo'sroleatthestartofthescientificrevolution.ThewisdomofthedaywasderivedfromPtolemy,anastronomerofthesecondcentury,whoseelaboratesystemoftheskyputEarthatthecenterofallheavenlymotions.(74)Galileo'sgreatestglorywasthatin1609hewasthefirstpersontoturnthenewlyinventedtelescopeontheheavenstoprovethattheplanetsrevolvearoundthesunratherthanaroundtheEarth.Buttherealheroofthestory,accordingtothenewwaslargelytheimprovementandinventionanduseofaseriesofinstrumentsthatexpandedthereachofscienceininnumerabledirections.‖(73)Overtheyears,toolsandtechnologythemselvesasasourceoffundamentalinnovationhavelargelybeenignoredbyhistoriansandphilosophersofscience.ThemodernschoolthathailstechnologyarguesthatsuchmastersasGalileo,Newton,Maxwell,Einstein,andinventorssuchasEdisonattachedgreatimportanceto,andderivedgreatbenefitfrom,craftinformationandtechnologicaldevicesofdifferentkindsthatwereusableinscientificexperiments.Thecenterpieceoftheargumentofatechnology-yes,genius-noadvocatewasananalysisofGalileo'sroleatthestartofthescientificrevolution.ThewisdomofthedaywasderivedfromPtolemy,anastronomerofthesecondcentury,whoseelaboratesystemoftheskyputEarthatthecenterofallheavenlymotions.(74)Galileo'sgreatestglorywasthatin1609hewasthefirstpersontoturnthenewlyinventedtelescopeontheheavenstoprovethattheplanetsrevolvearoundthesunratherthanaroundtheEarth.Buttherealheroofthestory,accordingtothenewschoolofscientists,wasthelongevolutionintheimprovementofmachineryformakingeyeglasses.Federalpolicyisnecessarilyinvolvedinthetechnologyvs.geniusdispute.(75)WhethertheGovernmentshouldincreasethefinancingofpurescienceattheexpenseoftechnologyorviceoftendependsontheissueofwhichisseenasthedriving1995年英译汉Thestandardizededucationalorpsychologicalteststhatarewidelyusedtoaidinselecting,classifying,assigning,orpromotingstudents,employees,andmilitarypersonnelhavebeenthetargetofrecentattacksinbooks,magazines,thedailypress,andevenincongress.(71)Thetargetiswrong,forinattackingthetests,criticsdivertattentionfromthefaultthatlieswithill-informedorincompetentusers.Theteststhemselvesaremerelytools,withcharacteristicsthatcanbemeasuredwithreasonableprecisionunderspecifiedconditions.Whethertheresultswillbevaluable,meaningless,orevenmisleadingdependspartlyuponthetoolitselfbutlargelyupontheuser.Allinformedpredictionsoffutureperformancearebaseduponsomeknowledgeofrelevantpastperformance:schoolgradesresearchproductive,salesrecords,orwhateverisappropriate.(72)Howwellthepredictionswillbevalidatedbylaterperformancedependsupontheamount,reliability,andappropriatenessoftheinformationusedandontheskillandwisdomwithwhichitisinterpreted.Anyonewhokeepscarefulscoreknowsthattheinformationavailableisalwaysincompleteandthatthepredictionsarealwayssubjecttoerror.Standardizedtestsshouldbeconsideredinthiscontext.Theyprovideaquick,objectivemethodofgettingsomekidsofinformationaboutwhatapersonlearned,theskillshehasdeveloped,orthekindsofpersonheis.Theinformationsoobtainedhas,qualitatively,thesameadvantagesandshortcomingsasotherkindsofinformation.(73)Whethertousetests,otherkindsofinformation,orbothinaparticularsituationdepends,therefore,upontheevidencefromexperienceconcerningcomparativevalidityanduponsuchfactorsascostandavailability.(74)Ingeneral,thetestsworkmosteffectivelywhenthequalitiestobemeasuredcanbemostpreciselydefinedandleasteffectivelywhenwhatistobemeasuredorpredictedcannotbewelldefined.Properlyused,theyprovidearapidmeansofgettingcomparableinformationaboutmanypeople.Sometimestheyidentifystudentswhosehighpotentialhasnotbeenpreviouslyrecognized,buttherearemanythingstheydonotdo.(75)Forexample,theydonotcompensatefor5/socialinequality,andthusdonottellhowableanunderprivilegedyoungstermighthavebeenhegrownupundermorefavorable1996年英译汉Thedifferencesinrelativegrowthofvariousareasofscientificresearchhaveseveralcauses.(71)Someofthesecausesarecompletelyreasonableresultsofsocialneeds.Othersarereasonableconsequencesofparticularadvancesinsciencebeingtosomeextentself-accelerating.Some,however,arelessreasonableprocessesofdifferentgrowthinwhichpreconceptionsoftheformscientifictheoryoughttotake,bypersonsinauthority,acttoalterthegrowthpatternofdifferentareas.Thisisanewproblemprobablynotyetunavoidable;butitisafrighteningtrend.(72)ThistrendbeganduringtheSecondWorldWar,whenseveralgovernmentscametotheconclusionthatthespecificdemandsthatagovernmentwantstomakeofitsscientificestablishmentcannotgenerallybeforeseenindetail.Itcanbepredicted,however,thatfromtimetotimequestionswillarisewhichwillrequirespecificscientificanswers.Itisthereforegenerallyvaluabletotreatthescientificestablishmentasaresourceormachinetobekeptinfunctionalorder.(73)Thisseemsmostlyeffectivelydonebysupportingacertainamountofresearchnotrelatedtoimmediategoalsbutofpossibleconsequenceinthefuture.Thiskindofsupport,likeallgovernmentsupport,requiresdecisionsabouttheappropriaterecipientsoffunds.Decisionsbasedonutilityasopposedtolackofutilityarestraightforward.Butadecisionamongprojectsnoneofwhichhasimmediateutilityismoredifficult.Thegoalofthesupportingagenciesisthepraisableoneofsupporting―good‖asopposedto―bad‖science,butavaliddeterminationisdifficulttomake.Generally,theideaofgoodsciencetendstobecomeconfusedwiththecapacityofthefieldinquestiontogenerateaneleganttheory.(74)However,theworldissomadethatelegantsystemsareinprinciplesocialinequality,andthusdonottellhowableanunderprivilegedyoungstermighthavebeenhegrownupundermorefavorable1996年英译汉Thedifferencesinrelativegrowthofvariousareasofscientificresearchhaveseveralcauses.(71)Someofthesecausesarecompletelyreasonableresultsofsocialneeds.Othersarereasonableconsequencesofparticularadvancesinsciencebeingtosomeextentself-accelerating.Some,however,arelessreasonableprocessesofdifferentgrowthinwhichpreconceptionsoftheformscientifictheoryoughttotake,bypersonsinauthority,acttoalterthegrowthpatternofdifferentareas.Thisisanewproblemprobablynotyetunavoidable;butitisafrighteningtrend.(72)ThistrendbeganduringtheSecondWorldWar,whenseveralgovernmentscametotheconclusionthatthespecificdemandsthatagovernmentwantstomakeofitsscientificestablishmentcannotgenerallybeforeseenindetail.Itcanbepredicted,however,thatfromtimetotimequestionswillarisewhichwillrequirespecificscientificanswers.Itisthereforegenerallyvaluabletotreatthescientificestablishmentasaresourceormachinetobekeptinfunctionalorder.(73)Thisseemsmostlyeffectivelydonebysupportingacertainamountofresearchnotrelatedtoimmediategoalsbutofpossibleconsequenceinthefuture.Thiskindofsupport,likeallgovernmentsupport,requiresdecisionsabouttheappropriaterecipientsoffunds.Decisionsbasedonutilityasopposedtolackofutilityarestraightforward.Butadecisionamongprojectsnoneofwhichhasimmediateutilityismoredifficult.Thegoalofthesupportingagenciesisthepraisableoneofsupporting―good‖asopposedto―bad‖science,butavaliddeterminationisdifficulttomake.Generally,theideaofgoodsciencetendstobecomeconfusedwiththecapacityofthefieldinquestiontogenerateaneleganttheory.(74)However,theworldissomadethatelegantsystemsareinprincipleunabletodealwithsomeoftheworld'smorefascinatinganddelightfulaspects.(75)Newformsofthoughtaswellasnewsubjectsforthoughtmustariseinthefutureastheyhaveinthepast,givingrisetonewstandardsofelegance.1997年英译汉Doanimalshaverights?Thisishowthequestionisusuallyput.Itsoundslikeauseful,ground-clearingwaytostart.(71)Actually,itisn't,becauseitassumesthatthereisanagreedaccountofhumanrights,whichissomethingtheworlddoesnothave.Ononeviewofrights,tobesure,itnecessarilyfollowsthatanimalshavenone.(72)Somephilosophersarguethatrightsexistonlywithinasocialcontract,aspartofanexchangeofdutiesandentitlements.Therefore,animalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurd;forexactlythesamereason,soistheideathattigershaverights.However,thisisonlyoneaccount,andbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople—forinstance,toinfants,thementallyincapableandfuturegenerations.Inaddition,itisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosays―Idon'tlikethiscontract‖?Thepointisthis:withoutagreementontherightsofpeople,arguingabouttherightsofanimalsisfruitless.(73)Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumans,orwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanother,morefundamental,6/isthewaywetreatanimalsamoralissueatManydenyit.(74)Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespect,extremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenasamistake—asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans.Thisview,whichholdsthattorturingamonkeyismorallyequivalenttochoppingwood,mayseembravely―ogca.Infactitissimplyshallow:theconfusedcenterisrighttorejectit.Themostelementaryformofmoralreasoning—theethicalequivalentoflearningtocrawl—istoweighothers'interestsagainstone'sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenough,formost,toengagesympathy.(75)isthewaywetreatanimalsamoralissueatManydenyit.(74)Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespect,extremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenasamistake—asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans.Thisview,whichholdsthattorturingamonkeyismorallyequivalenttochoppingwood,mayseembravely―ogca.Infactitissimplyshallow:theconfusedcenterisrighttorejectit.Themostelementaryformofmoralreasoning—theethicalequivalentoflearningtocrawl—istoweighothers'interestsagainstone'sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenough,formost,toengagesympathy.(75)Whenthathappens,itisnotamistake:itismankind'sinstinctformoralreasoninginaction,aninstinctthatshouldbeencouragedratherthanlaughedat.1998年英译汉Theywere,byfar,thelargestandmostdistantobjectsthatscientistshadeverdetected:astripofenormouscosmiccloudssome15billionlight-yearsfromearth.(71)Butevenmoreimportant,itwasthefarthestthatscientistshadbeenabletolookintothepast,forwhattheywereseeingwerethepatternsandstructuresthatexisted15billionyearsago.Thatwasjustaboutthemomentthattheuniversewasborn.Whattheresearchersfoundwasatoncebothamazingandexpected;theUSNationalAeronauticsandSpaceAdministration'sCosmicBackgroundExplorersatellite—Cobe—haddiscoveredlandmarkevidencethattheuniversedidinfactbeginwiththeprimevalexplosionthathasbecomeknownastheBigBang(thetheorythattheuniverseoriginatedinanexplosionfromasinglemassofenergy.)(72)TheexistenceofthegiantcloudswasvirtuallyrequiredfortheBigBang,firstputforwardinthe1920s,tomaintainitsreignasthedominantexplanationofthecosmos.Accordingtothetheory,theuniverseburstintobeingasasubmicroscopic,unimaginabledenseknotofpureenergythatflewoutwardinalldirections,emittingradiationasitwent,condensingintoparticlesandthenintoatomsofgas.Overbillionsofyears,thegaswascompressedbygravityintogalaxies,stars,plantsandeventully,evenhumans.Cobeisdesignedtoseejustthebiggeststructures,butastronomerswouldliketoseemuchsmallerhotspotsaswell,theseedsoflocalobjectslikeclustersandsuperclustersofgalaxies.Theyshouldn'thavelongtowait.(73)Astrophysicistsworkingwithground-baseddetectorsattheSouthPoleandballoon-borneinstrumentsareclosinginonsuchstructures,andmayreporttheirfindings(74)Ifthesmallhotspotslookasexpected,thatwillbeatriumphforyetanotherscientificidea,arefinementoftheBigBangcalledtheinflationaryuniversetheory.Inflationsaysthatveryearlyon,theuniverseexpandedinsizebymorethanatrilliontrilliontrilliontrillionfoldinmuchlessthanasecond,propelledbyasortofantigravity.(75)Oddthoughitsounds,cosmicinflationisascientificallyplausibleconsequenceofsomerespectedideasinelementary-particlephysics,andmanyastrophysicistshavebeenconvincedforthebetterpartofadecadethatitistrue.1999年英译汉(71)Whiletherearealmostasmanydefinitionsofhistoryastherearehistorians,modernpracticemostcloselyconformstoonethatseeshistoryastheattempttorecreateandexplain7/significanteventsofthepast.Caughtinthewebofitsowntimeandplace,eachgenerationofhistoriansdeterminesanewwhatissignificantforitinthepast.Inthissearchtheevidencefoundisalwaysincompleteandscattered;itisalsofrequentlypartialorpartisan.Theironyofthehistorian'scraftisthatitspractitionersalwaysknowthattheireffortsarebutcontributionstoanunendingInterestinhistoricalmethodshasarisenlessthroughexternalchallengetothevalidityofhistoryasanintellectualdisciplineandmorefrominternalquarrelsamonghistoriansthemselves.Whilehistoryoncerevereditsaffinitytoliteratureandphilosophy,theemergingsocialsciencesseemedtoaffordgreateropportunitiesforaskingnewquestionsandprovidingrewardingapproachestoanunderstandingofthepast.Socialsciencemethodologieshadtobeadaptedtoadisciplinegovernedbytheprimacyofhistoricalsourcesrat
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 房产买卖合同合同书合集
- 房屋租赁合同范本-1合集
- 幼儿园老师辞职申请书合集
- 承包经营分处理机构合同合集
- 质量员之市政质量专业管理实务题库附答案(典型题)
- 工地扬尘污染防治方案模板
- 2024届河北省承德市部分高中二模数学试题(含答案)
- 算法与数据结构(C++语言版)(第2版) 第11章课后习题答案
- 【教案】抛体运动的规律+教学设计高一下学期物理人教版(2019)必修第二册
- 解聘协议书范本
- 优秀毕业设计毕业论文PLC控制电机正反转
- 油品复检申请
- 乡镇纪委关于基层纪检监察工作调研报告
- 招商银行小微企业贷款管理办法.
- 地下室防潮防霉涂料施工方案
- 北楼-新增电梯井专项施工方案(完整版)
- 地基换填施工方案(完整版)
- 聘用合同(范本)
- (最新整理)室内装修报价明细表
- 大学学习心得体会学以致用实例个人收获和社会效应
- 短语结构类型(学生用)
评论
0/150
提交评论