2016考研閱讀基礎(chǔ)班講義24p

博士后@老曹考研心理語(yǔ)言學(xué)測(cè)試，考研英語(yǔ)閱讀尋讀法創(chuàng)始人、全球ETS題庫(kù)建設(shè)支持高級(jí)、教育部高等教育司考研命題測(cè)試學(xué)研究課題組成員、英語(yǔ)VIP高端輔導(dǎo)支持、中國(guó)信息網(wǎng)、人民考研版獨(dú)家撰稿，考研命題測(cè)試學(xué)，輔導(dǎo)英語(yǔ)考生以80%以上通過(guò)分而著稱考研輔導(dǎo)界。Passageanizedanizedaroundabasicallyprivate-TheAmericaneconomicsystemmarket-orientedeconomyinwhichconsumerslargelydeterminewhatshallbeproducedbyspendingtheirmoneyinthemarketplaceforthosegoodsandservicesthattheywantmost.Privatebusinessmen,strivingtomakeprofits,producethesegoodsandservicesincompetitionwithotherbusinessmen;andtheprofitmotive,operatingundercompetitivepressures,largelydetermineshowthesegoodsandservicesareproduced.Thus,intheAmericaneconomicititisthedemandofindividualconsumers,coupledwiththedesireofbusinessmenprofitsprofitsandthedesireofindividualsize es,thattogetherdetermineshallbeproducedandhowresourcesareusedtoproduceAnimportantfactorinamarket-orientedeconomyisthemechanismbywhichconsumerdemandscanbeexpressedandrespondedtobyproducers.IntheAmericaneconomy,thismechanismisprovidedbyapricesystem,aprocessinwhichpricesriseandfallinresponsetorelativedemandsofconsumersandsofferedbyseller-producers.Iftheproductsisinshortsupplyrelativetothedemand,thepricewillbebidupandsomeconsumerswillbeeliminatedfromthemarket.If,ontheotherhand,producingmoreofacommodityresultsinreducingitscost,thiswilltendtoincreasethesupplyofferedbyseller-producers,whichinturnwilllowerthepriceandpermitmoreconsumerstobuytheproduct.Thus,priceistheregulatingmechanismintheAmericaneconomicsystem.Theimportantfactorinaprivate-enterpriseeconomyisthatindividualsareallowedtoownproductiveresources(privateproperty),andtheyarepermittedtohirelabor,gaincontrolovernaturalresources,andproducegoodsandservicesforsaleataprofit.IntheAmericaneconomy,theconceptofprivatepropertyembracesnotonlytheownershipofproductiveresourcesbutalsocertainrights,includingtherighttodeterminethepriceofaproductortomakeafreecontractwithanotherprivateindividual.Inline8,paragraph1,"thedesireofindividualstoize es".Americansareneversatisfiedwith Americanstendtooverstate Americanswanttohave esAmericanswanttoincreasethepurchasingpowerof Thetwosentencesinthesecondparagraphlus producerscansatisfytheconsumersbymechanizedconsumerscanexpresstheirdemandsthroughproducersdecidethepricesofsupplyanddemandregulateAccordingtothepassage,aprivate-enterpriseeconomyischaracterized privatepropertyandrights [B]manpowerandnaturalresources[C]ownershipofproductive [D]freecontractsandThepassageismainly howAmericangoodsarehowAmericanconsumersbuytheirhowAmericaneconomicsystemhowAmericanbusinessmenmaketheirPassageOnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.givegivetheirownersautomaticcreditinstores,restaurants,and s,athome,acrosstheandevenabroad,andtheymakemanybankingservicesavailableaswell.Moreandmoreofthesecreditcardscanbereadautomatically,makingitpossibletowithdrawordepositmoneyinscatteredlocations,whetherornotthelocalbranchbankisopen.Formanyofus,the"cashlesssociety"isnotonthehorizon—it'salreadyhere.ElectroniccashElectroniccashregisterscandoorethansimplyringupsales.Theycanawiderangeofrecords,includingwhosoldwhat,when,andtowhom.Thisinformationallowsbusinessmentokeeptrackoftheirlistofgoodsbyshowingwhichitemsarebeingsoldandhowfasttheyaremoving.Decisionstoreorderorreturngoodstorscanthenbemade.Atthesametimethesecomputersrecordwhichhoursarebusiestandwhichemployeesaretheefficient,efficient,nelandstaffingassignmentstobemadeaccordingly.AndtheyComputersarereliedonbymanufacturersforsimilarreasons.Computer-yzedmarketingreportscanhelptodecidewhichproductstoemphasizenow,whichtodevelopforthefuture,andwhichtodrop.Computerskeeptrackofgoodsinstock,ofrawmaterialsonhand,andevenoftheproductionprocessitself.identifypreferredcustomersforidentifypreferredcustomersforAccordingtothepassage,thecreditcardenablesitsowner withdrawasmuoneyfromthebankasheobtainmoreconvenientservicesthanotherpeopleenjoygreatertrustfromthecashmoneywhereverhewishesFromthelastenceoftheparagraphwelearn inthefuturealltheAmericanswillusecreditcreditcardsaremainlyusedintheUnitedStatenowadaysmanyAmericansdonotpayinitisnowmoreconvenienttousecreditcardsthanThephrase"ringupsales"(line2,paragraph2)mostprobablymeans makeanorderof [B]recordsalesonacash[C]callthesales [D]keeptrackofthegoodsinWhatisthispassagemainlyApproachestothecommercialuseofConveniencesbroughtaboutbycomputersinSignificanceofautomationincommercialAdvantagesofcreditcardsinPassageExceptionalchildrenaredifferentinsomesignificantwayfromothersofthesameage.Forthesechildrentodeveloptotheirfulladultpotential,theireducationmustbeadaptedtothoseAlthoughwefocusontheneedsofexceptionalchildren,wefindourselvesdescribingtheirenvironmentaswell.Whiletheleadingactoronthestagecapturesourattention,weareawareoftheimportanceofthesupportingplayersandthesceneryoftheplayitself.Boththefamilyandthesocietyinwhichexceptionalchildrenliveareoftenthekeytotheirgrowthanddevelopment.Anditisinthepublicschoolsthatwefindthefullexpressionofsociety'sunderstanding—theknowledge,hopes,andfearsthatarepassedontothenextgeneration.Educationinanysocietyisamirrorofthatsociety.Inthatmirrorwecanseethestrengths,theweaknesses,thehopes,theprejudices,andthecentralvaluesofthecultureitself.Thegreatinterestinexceptionalchildrenshowninpubliceducationoverthepastthreedecadesindicatesthestrongfeelinginoursocietythatallcitizens,whatevertheirspecialconditions,deservetheopportunitytofullydeveloptheircapabilities."Allmenarecreatedequal."We'vehearditmanytimes,butitstillhasimportantmeaningforeducationinademocraticsociety.Althoughthephrasewasusedbythiscountry'sfounderstodenoteequalitybeforethelaw,ithasalsobeeninterpretedtomeanequalityofopportunity.Thatconceptimplieseducationalopportunityforallchildren—therightofeachchildtoreceivehelpinlearningtothelimitsofhisorhercapacity,whetherthatcapacitybesmallorgreat.Recentcourtdecisionshaveconfirmedtherightofallchildren—disabledornot—toanappropriateeducation,andhaveorderedthatpublicschoolstakethenecessarystepstoprovidethateducation.Inresponse,schoolsaremodifyingtheirprograms,adaptinginstructiontochildrenwhoareexceptional,tothosewhocannotprofitsubstantiallyfromregularprograms.Inparagrah2,theauthorcitestheexampleoftheleadingactoronthestagetoshow.thegrowthofexceptionalchildrenhasmuchtodowiththeirfamilyandtheexceptionalchildrenarethekeyinterestofthefamilyandtheneedsofthesocietyweighmuchheavierthantheneedsoftheexceptionalThereasonthattheexceptionalchildrenreceivesomuchconcernineducationis.theyareexpectedtobeleadersofthethey eaburdenofthetheyshouldfullydeveloptheirThispassagemainlydeals thedefinitionofexceptionalchildreninmodernthespecialeducationalprogramsforexceptionalthenecessityofadaptingeducationtoexceptionalFromthispassagewelearnthattheeducationalconcernforexceptional isnowenjoyinglegaldisagreeswiththetraditionofthewasclearlystatedbythecountry'swillexertgreatinfluenceovercourtPassageScatteredaroundtheglobearemorethan100smallregionsofisolatedvolcanicactivityknowntogeologistsashotspots.Unlikemostoftheworld'svolcanoes,theyarenotalwaysfoundattheboundariesofthegreatdriftingplatesthatmakeuptheearth'ssurface;onthecontrary,manyofthemliedeepintheinteriorofaplate.Mostofthehotspotsmoveonlyslowly,andinsomecasesthemovementoftheplatespastthemhaslefttrailsofdeadvolcanoes.Thehotspotsandtheirvolcanictrailsaretonesthatmarkthepassageoftheplates.Thattheplatesaremovingisnowdispute.AfricaandSouthAmerica,forexample,aremovingawayfromeachotherasnewmaterialisinjectedintotheseafloorbetweenthem.Thecomplementarycoastlinesandcertaingeologicalfeaturesthatseemtospantheoceanareremindersofwherethetwocontinentswereoncejoined.Therelativemotionoftheplatescarryingthesecontinentshasbeenconstructedindetail,butthemotionofoneplatewithrespecttoanothercannotreadilybetranslatedintomotionwithrespecttotheearth'sinterior.Itisnotpossibletodeterminewhetherbothcontinentsaremovinginoppositedirectionsorwhetheronecontinentisstationaryandtheotherisdriftingawayfromit.Hotspots,anchoredinthedeeperlayersoftheearth,providethemeasuringinstrumentsneededtoresolvethequestion.Fromanysisofthehot-spotpopulationitappearsthattheAfricanplateisstationaryandthatithasnotmovedduringthepast30millionThesignificanceofhotspotsisnotconfinedtotheirroleasaframeofreference.Itnowappearsthattheyalsohaveanimportantinfluenceonthegeophysicalprocessesthatpropeltheplatesacrosstheglobe.Whenacontinentalplatecometorestoverahotspot,thematerialrisingfromdeeperlayercreatesabroaddome.Asthedomegrows,itdevelopsdeepfissures(cracks);inatleastafewcasesthecontinentmaybreakentirelyalongsomeofthesefissures,sothatthehotspotinitiatestheformationofanewocean.Thusjustasearliertheorieshaveexplainedthemobilityofthecontinents,sohotspotsmayexplaintheirmutability(inconstancy).Theauthorbelieves themotionoftheplatescorrespondstothatoftheearth'sthegeologicaltheoryaboutdriftingplateshasbeenprovedtobethehotspotsandtheplatesmoveslowlyinoppositethemovementofhotspotsprovesthecontinentsaremovingThatAfricaandSouthAmericawereoncejoinedcanbededucedfromthefact.thetwocontinentsarestillmovinginoppositetheyhavebeenfoundtosharecertaingeologicaltheAfricanplateshasbeenstablefor30millionover100hotspotsarescatteredallaroundtheThehot-spottheorymayproveusefulin [A]thestructureoftheAfrican[B]therevivalofdead[C]themobilityofthe70.Thepassageismainly.[D]theformationofnewthefeaturesofvolcanictheimportanceofthetheoryaboutdriftingthesignificanceofhotspotsingeophysicaltheprocessoftheformationofPassageBeingamanhasalwaysbeendangerous.Thereareabout105malesbornforevery100females,butthisratiodropstonearbalanceattheageofmaturity,andamong70-year-oldstherearetwiceasmanywomenasmen.Butthegreatuniversalofmalemortalityisbeingchanged.Now,boybabiessurvivealmostaswellasgirlsdo.Thismeansthat,forthetime,therewillbeanexcessofboysinthosecrucialyearswhentheyaresearchingforamate.Moreimportant,anotherchancefornaturalselectionhasbeenremoved.Fiftyyearsago,thechanceofababy(particularlyaboybaby)survivingdependedonitsweight.Akilogramtoolightortooheavymeantalmostcertaindeath.Todayitmakesalmostnodifference.Sincemuchofthevariationisduetogenes,onemoreagentofevolutionhasgone.Thereisanotherwaytocommitevolutionarysuicide:stayalive,buthavefewerchildren.Fewpeopleareasfertileasinthepast.Exceptinsomereligiouscommunities,veryfewwomenhas15children.Nowadaysthenumberofbirths,liketheageofdeath,has eaverage.Mostofushaveroughlythesamberofoffspring.Again,differencesbetweenpeopleandtheopportunityfornaturalselectiontotakeadvantageofithavediminished.showswhatishappening.Thecountryofferswealthforafewinthegreatcitiesandpovertyfortheremainingtribalpeoples.Thegrandmediocrityoftoday—everyonebeingthesameinsurvivalandnumberofoffspring—meansthatnaturalselectionhaslost80%ofitspowercomparedtotheForus,thismeansthatevolutionisover;thebiologicalUtopiahasarrived.Strangely,ithasinvolvedlittlephysicalchange.Nootherspeciesfillssomanyplacesinnature.Butinthepast100,000years—eventhepast100years—ourliveshavebeentransformedbutourbodieshavenot.Wedidnotevolve,becausemachinesandsocietydiditforus.Darwinhadaphrasedescribedescribethoseignorantofevolution:they"lookat anicbeingasasavagelooksataasatsomethinghisasatsomethinghisWhatusedtobethedangerinbeingamanaccordingtotheAlackof [B]Afierce[C]Alowersurvival [D]AdefectiveWhatdoestheexampleofWealthypeopletendtohavefewerchildrenthanpoorNaturalselectionhardlyworksamongtherichandtheThemiddleclasspopulationis80%smallerthanthatoftheisoneofthecountrieswithaveryhighbirthrate.Theauthorarguesthatourbodieshavestoppedevolving lifehasbeenimprovedbytechnologicalthenumberoffemalebabieshasbeenourspecieshasreachedthehigheststageofthedifferencebetweenwealthandpovertyisWhichofthefollowingwouldbethebesttitlefortheSexRationChangesinHumanWaysofContinuingMan'sHumanEvolutionGoingPassageThatexperiencesinfluencesubsequentbehaviourisevidenceofanobviousbutneverthelessremarkableactivitycalledremembering.Learningcouldnotoccurwithoutthefunctionpopularlynamedmemory.Constantpracticehassuchaneffectonmemoryastoleadtoskillfulperformanceonthepiano,torecitationofapoem,andeventoreadingandunderstandingthesewords.So-calledinligentbehaviourdemandsmemory,rememberingbeingaprimaryrequirementforreasoning.Theabilitytosolveanyproblemoreventorecognizethataproblemexistsdependsonmemory.Typically,thedecisiontocrossastreetisbasedonrememberingmanyearlierexperiences.Practice(orreview)tendstobuildandmaintainmemoryforataskorforanylearnedmaterial.Overaperiodofnopracticewhathasbeenlearnedtendstobefotten;andtheadaptiveconsequencesmaynotseemobvious.Yet,dramaticinstancesofsuddenfettingcanbeseentobeadaptive.Inthissense,theabilitytofetcanbeinterpretedtohavesurvivedthroughaprocessofnaturalselectioninanimals.Indeed,whenone'smemoryofanemotionallypainfulexperienceleadtoseriousanxiety,fettingmayproducerelief.Nevertheless,anevolutionaryinterpretationmightmakeitdifficulttounderstandhowthecommonlygradualprocessoffettingsurvivednaturalselection.Inthinkingabouttheevolutionofmemorytogetherwithallitspossibleaspects,itishelpfultoconsiderwhatwouldhappenifmemoriesfailedtofade.Fettingclearlyaidsorientationintime,sinceoldmemoriesweakenandthenewtendtostandout,providingcluesforinferringduration.Withoutfetting,adaptiveabilitywouldsuffer,forexample,learnedbehaviourthatmighthavebeencorrectadecadeagomaynolongerbe.Casesarerecordedofpeoplewho(byordinarystandards)fotsolittlethattheireverydayactivitieswerefullofconfusion.Thisfettingseemstoservethatsurvivaloftheindividualandthespecies.Anotherlineofthoughtassumesamemorystoragesystemoflimitedcapacitythatprovidesadaptiveflexibilityspecificallythroughfetting.Inthisview,continualadjustmentsaremadebetweenlearningormemorystorage(input)andfetting(output).Indeed,thereisevidencethattherateatwhichindividualsfetisdirectlyrelatedtohowmuchtheyhavelearned.Suchdataoffersgrosssupportofcontemporarymodelsofmemorythatassumeaninput-outputFromtheevolutionarypointof fettingforlackofpracticetendstobeobviously rsongetsveryfetfulallofasuddenhemustbeverythegradualprocessoffettingisanindicationofanindividual'sAccordingtothepassage,ifrsonneverf hewouldsurvive [B]hewouldhavealotof[C]hisabilitytolearnwouldbe [D]theevolutionofmemorywouldFromthelastparagraphweknow fetfulnessisaresponsetothememorystoragesystemisanexactlybalancedinput-outputmemoryisacompensationforfthecapacityofamemorystoragesystemislimitedbecausefettingInthisarticle,theauthortriestointerpretthefunction [B]f [D]PassageWhenanewmovementinartattainsacertainfashion,itisadvisabletofindoutwhatitsadvocatesareaimingat,for,howeverfarfetchedandunreasonabletheirprinciplesmayseemtoday,itispossiblethatinyearstocometheymayberegardedasnormal.WithregardtoFuturistpoetry,however,thecaseisratherdifficult,forwhateverFuturistpoetrymaybe—evenadmittingthatthetheoryonwhichitisbasedmayberight—itcanhardlybeclassedasThis,inbrief,iswhattheFuturistsays:foracentury,pastconditionsoflifehavebeenconditionallyspeedingup,tillnowweliveinaworldofnoiseandandspeed.Consequently,ourfeelings,thoughtsandemotionshaveundergoneacorrespondingchange.Thisspeedingupoflife,saystheFuturist,requiresanewformofexpression.Wemustspeedupourliteraturetoo,ifwewanttointerpretmodernstress.Wemustpouroutalargestreamofessentialwords,unhamperedbystops,orqualifyingadjectives,orfiniteverbs.Insteadofdescribingsoundswemustmakeupwordsthatimitatethem;wemustusemanysizesoftypeanddifferentcoloredinksonthesamepage,andshortenorlengthenwordsatwill.Certainlytheirdescriptionsofbattlesareconfused.ButitisalittleupsettingtoreadinexplanatoryexplanatorynotesertainlinedescribesafightbetweenaTurkishandaBulgarianonabridgeoffwhichtheybothfallintotheriver—andthentofindthatthelineconsistsofthenoiseoftheirfallingandtheweightsoftheofficers:"Pluff!Pluff!Ahundredandeighty-fiveAllthesame,Allthesame,nothinkingmancanrefusetoaccepttheir proposition:thatagreatchangeinouremotionallifecallsforachangeofexpression.Thewholequestionisreallythis:haveweessentiallychanged?Thispassageis asurveyofnewapproachesto [B]areviewofFuturist[C]aboutmeritsoftheFuturist [D]aboutlawsandrequirementsofWhenanovelliteraryideaappears,peopleshouldtry [A]determineits[B]ignoreits[C]followthenew61.Futuristthatwe.[D]accepttheincreasetheproductionof [B]usepoetrytorelievemodern[C]developnewmodesof [D]avoidusingadjectivesand62.TheauthorbelievesthatFuturistpoetry basedonreasonablenewandacceptabletoordinaryindicativeofbasicchangeinhumanmoreofatransientphenomenonthanPassageWhydosomanyAmericansdistrustwhattheyreadintheirnewsprs?TheAmericanSocietyofNewsprEditorsistryingtoanswerthispainfulquestion.Theanizationisdeepintoalongself-ysisknownasthejournalismcredibilityproject.Sadtosay,thisprojecthasturnedouttobemostlylow-levelfindingsaboutfactualerrorsandspellingandgrammarmistakes,combinedwithlotsofhead-scratchingpuzzlementaboutwhatintheworldthosereadersreallywant.Butthesourcesofdistrustgowaydeeper.Mostjournalistslearntoseetheworldthroughasetofstandardtemplates(patterns)intowhichtheyplugeachday'sevents.Inotherwords,thereisaconventionalstorylineinthenewsroomculturethatprovidesabackboneandaready-madenarrativestructureforotherwiseconfusingnews.Thereexistsasocialandculturaldisconnectbetweenjournalistsandtheirreaders,whichhelpsexplainwhythe"standardtemplates"ofthenewsroomseemalientomanyreaders.Inarecentsurvey,questionnairesweresenttoreportersinfivemiddlesizecitiesaroundthecountry,plusonelargemetropolitanarea.Thenresidentsinthesecommunitieswerephonedatrandomandaskedthesamequestions.RepliesshowthatcomparedwithotherAmericans,journalistsaremorelikelytoliveinupscaleneighborhoods,havemaids,ownMercedeses,andtradestocks,andthey'relesslikelytogotochurch,dovolunteerwork,orputdownrootsinacommunity.Reporterstendtobepartofabroadlydefinedsocialandculturalelite,sotheirworktendstoreflecttheconventionalvaluesofthiselite.Theastonishingdistrustofthenewsmediaisn'trootedininaccuracyorpoorreportorialskillsbutinthedailyclashofworldviewsbetweenreportersandtheirreaders.Thisisanexplosivesituationforanyindustry,particularlyadecliningone.Hereisatroubledbusinessthatkeepshiringemployeeswhoseattitudesvastlyannoythecustomers.Thenitsponsorslotsofsymposiumsandacredibilityprojectdedicatedtowonderingwhycustomersareannoyedandfleeinginlargenumbers.Butitneverseemstogetaroundtonoticingtheculturalandclassbiasesthatsomanyformerbuyersarecomplainingabout.Ifitdid,itwouldopenupitsdiversityprogram,nowfocusednarrowlyonraceandgender,andlookforreporterswhodifferbroadlybyoutlook,values,education,andclass.WhatisthepassagemainlyNeedsofthereadersallovertheCausesofthepublicdisappointmentaboutnewspOriginsofthedecliningnewsprAimsofajournalismcredibilityTheresultsofthejournalismcredibilityprojectturnedoutto quite [B]somewhat[C]very [D]ratherThebasicproblemofjournalistsaspointedoutbythewriterliesin working [B]conventional[C]world Despiteitsefforts,thenewsprindustrystillcannotsatisfythereadersowingto.failuretorealizeitsreal [B]tendencytohireannoying[C]likelinesstonaccurate [D]prejudiceinmattersofraceandPassageAhistoryoflongandeffortlesssuccesscanbeadreadfulhandicap,but,ifproperlyhandled,itmay eadrivingforce.WhentheUnitedStatesenteredjustsuchaglowingperiodafteroftheSecondWorldWar,ithadamarketeighttimeslargerthananycompetitor,givingitsindustriesunparalleledeconomiesofscale.Itsscientistsweretheworld'sbest,itsworkersthemostskilled.AmericaandAmericanswereprosperousthedreamsoftheEuropeansandAsianswhoseeconomiesthewarhaddestroyed.Itwasinevitablethatthisprimacyshouldhavenarrowedasothercountriesgrewricher.Justasinevitably,theretreatfrompredominanceprovedpainful.Bythemid1980sAmericanshadfoundthemselvesatalossovertheirfadingindustrialcompetitiveness.SomehugeAmericanindustries,suchasconsumerelectronics,hadshrunkorvanishedinthefaceofforeigncompetition.By1987therewasonlyoneAmericanevisionmakerleft,Zenith.(Nowthereisnone:ZenithwasboughtbySouthKorea'sLGElectronicsinJuly.)Foreignmadecarsandtextilesweresweeintothedomesticmarket.America'smachine-toolindustrywasontheropes.Forawhileitlookedasthoughthemakingofsemiconductors,whichAmericahadinventedandwhichsatattheheartofthenewcomputerage,wasgoingtobethenextcasualty.Allofthiscausedacrisisofconfidence.Americansstoppedtakingprosperityfranted.Theybegantobelievethattheirwayofngbusinesswasfailing,andthattheir eswouldthereforeshortlybegintofallaswell.Themid-1980sbroughtoneinquiryafteranotherintothecausesofAmerica'sindustrialdecline.Theirsometimessensationalfindingswerefilledwithwarningsaboutthegrowingcompetitionfromoverseas.Howthingshavechanged!In1995theUnitedStatescanlookbackonfiveyearsofsolidgrowthwhileJapanhasbeenstruggling.FewAmericansattributethissolelytosuchobviouscausesasadevalueddollarortheturningofthebusinesscycle.Selfdoubthasyieldedtoblindpride."Americanindustryhaschangeditsstructure,hasgoneonadiet,haslearnttobemorequickwitted,"accordingtoRichardCavanagh,executivedeanofHarvard'sKennedySchoolofernment."ItmakesmeproudtobeanAmericanjusttoseehowourbusinessesareimprovingtheirproductivity,"saysStephenMooreoftheCatoInstitute,athinkinWashington,DC.AndWilliamSahlmanoftheHarvardBusinessSchoolbelievesthatpeoplewilllookbackonthisperiodas"agoldenageofbusinessmanagementintheUnitedStates."TheU.S.achieveditspredominanceafterWorldWarII ithadmadepainstakingeffortstowardsthisitsdomesticmarketwaseighttimeslargerthanthewarhaddestroyedtheeconomiesofmostpotentialtheunparalleledsizeofitsworkforcehadgivenanimpetustoitsThelossofU.S.predominanceintheworldeconomyinthe1980sismanifestedinthefactthattheAmerican TVindustryhadwithdrawntoitsdomesticautoindustryhadlostpartofitsdomesticWhatcanbeinferredfromtheItishumannaturetoshiftbetweenself-doubtandblindIntensecompetitionmaycontributetoeconomicTherevivaloftheeconomydependsoninternationalAlonghistoryofsuccessmaypavethewayforfurtherTheauthorseemstobelievetherevivaloftheU.S.economyinthe1990scanbeattributedto turningofthebusinessrestructuringofsuccessinPassageSpecialisationcanbeseenasaresponsetotheproblemofanincreasingaccumulationofscientificknowledge.Bysplittingupthesubjectmatterintosmallerunits,onemancouldcontinuetohandletheinformationanduseitasthebasisforfurtherresearch.Butspecialisationwasonlyoneofaseriesofrelateddevelopmentsinscienceaffectingtheprocessofcommunication.Anotherwasthegrowingprofessionalisationofscientificactivity.Noclear-cutdistinctioncanbedrawnbetweenprofessionalsandamateursinscience:exceptionscanbefoundtoanyrule.Nevertheless,theword'amateur'doescarryaconnotationthatthe concernedisnotfullyintegratedintothescientificcommunityand,inparticular,maynotfullyshareitsvalues.Thegrowthofspecialisationinthenineteenthcentury,withitsconsequentrequirementofalonger,morecomplextraining,impliedgreaterproblemsforamateurparticipationinscience.Thetrendwasnaturallymostobviousinthoseareasofsciencebasedespeciallyonamathematicalorlaboratorytraining,andcanbeillustratedintermsofthedevelopmentofgeologyintheUnitedKingdom.AcomparisonofBritishgeologicalpublicationsoverthelastcenturyandahalfrevealsnotsimplyanincreasingemphasisontheprimacyofresearch,butalsoachangingdefinitionofwhatconstitutesanacceptableresearchpr.Thus,inthenineteenthcentury,localgeologicalstudiesrepresentedworthwhileresearchintheirownright;but,inthetwentiethcentury,localstudieshaveincreasingly eacceptabletoprofessionalsonlyiftheyincorporate,andreflecton,thewidergeologicalpicture.Amateurs,ontheotherhand,havecontinuedtopursuelocalstudiesintheoldway.Theoverallresulthasbeentomakeentrancetoprofessionalgeologicaljournalsharderforamateurs,aresultthathasbeenreinforcedbythewidespreadintroductionof bynationaljournalsinthenineteenthcenturyandthenbyseverallocalgeologicaljournalsinthetwentiethcentury.Asalogicalconsequenceofthisdevelopment,separatejournalshavenowappearedaimedmainlytowardseitherprofessionaloramateurreadership.Arathersimilarprocessofdifferentiationhasledtoprofessionalgeologistscomingtogethernationallywithinoneortwospecificsocieties,whereastheamateurshavetendedeithertoremaininlocalsocietiesortocometogethernationallyinadifferentway.AlthoughtheprocessofprofessionalisationandspecialisationwasalreadywellunderwayinBritishg