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马克思认为，“货币储藏的蓄水池，对于流通中的货节来说，既是排水渠，又是引水渠；因此货币永远不会溢出它的流通渠道”对这一论断理解正确的有
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马克思认为货币最基本的职能是
支付手段
流通手段
价值尺度
贮藏手段
马克思认为货币的基本职能是
支付手段
流通手段
价值尺度
世界货币
贮藏手段
马克思认为货币需求量取决于
商品价格
货币价值
商品数量
货币流通速度
马克思认为货币需求量不取决于
商品价格
货币价值
商品交易量
货币储藏量
货币流通速度
马克思认为决定流通中货币量的因素是【】
商品价格的水平
进入流通的商品数量
金融资产的价格
货币的流通速度
股票市场的波动
货币在执行职能时能够发挥蓄水池作用自发调节货币流通
价值尺度
流通手段
支付手段
贮藏手段
马克思认为货币需求量取决于
商品价格
货币价值
商品数量
货币储藏量
货币流通速度
马克思货币必要量公式马克思货币流通公式
由于货币形式的发展现代更普遍的货币贮藏方式是银行储蓄存款关于纸币储蓄与金属货币贮藏的说法正确的有
纸币储蓄会减少流通中的货币量
金属货币贮藏会减少流通中货币量
纸币储蓄能发挥蓄水池的作用
金属货币贮藏能发挥蓄水池的作用
马克思认为金币流通条件下的货币数量由商品的价格总额决定
马克思认为决定流通中货币量的因素有
商品价格的水平
进入流通的商品数量
金融资产的价格
货币的流通速度
债券的利息
马克思认为一定时期流通中的货币需要量取决于
商品价格
货币价值
商品数量
货币储藏量
货币流通速度
马克思货币流通规律表明货币必要量与价格流通中的商品数量成与货币流通速度成
.如图18－4－3是某蓄水池每小时的排水量V.立方米/小时与排完蓄水池中的水所用的时间t小时之间的函
马克思的货币需求理论认为决定货币需求量的因素是
商品数量；
价格水平；
货币流通速度；
投资。
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Emergingfromthe1980censusisthepictureofanationdevelopingmoreandmoreregionalcompetitionaspopulationgrowthintheNortheastandMidwestreachesanearstandstill. Thisdevelopment―anditsstrongimplicationsforUSpoliticsandeconomyinyearsahead―hasenthronedtheSouthasAmerica’’smostdenselypopulateregionforthefirsttimeinthehistoryofthenation’’sheadcounting. AltogethertheUSpopulationroseinthe1970sby23.2millionpeople―numericallythethird-largestgrowtheverrecordedinasingledecade.Evensothatgainaddsuptoonly11.4percentlowestinAmericanannualrecordsexceptfortheDepressionyears. AmericanshavebeenmigratingsouthandwestinlargernumberssinceWorldWarⅡandthepatternstillprevails. Threesun-beltstates―FloridaTexasandCalifornia―togetherhadnearly10millionmorepeoplein1980thanadecadeearlier.AmonglargecitiesSanDiegomovedfrom14thto8thandSanAntoniofrom15thto10th―withClevelandandWashingtonD.C.droppingoutofthetop10. Notallthatshiftcanbeattributedtothemovementoutofthesnowbeltcensusofficialssay.Nonstopwavesofimmigrantsplayedaroletoo―andsodidbiggercropsofbabiesasyesterday’’sbabyboomgenerationreacheditschild-bearingyears. Moreoverdemographersseethecontinuingshiftsouthandwestasjoinedbyarelatedbutnewerphenomenon:MoreandmoreAmericansapparentlyarelookingnotjustforplaceswithmorejobsbutwithfewerpeopletoo.Someinstances: RegionallytheRockyMountainstatesreprovedthemostrapidgrowthrate―37.1percentsince1970inavastareawithonly5percentoftheUSpopulation. AmongstatesNevadaandArizonagrewfastestofall:63.5and53.1percentrespectively.ExceptforFloridaandTexasthetop10inrateofgrowthiscomposedofWesternstatewith7.5millionpeople―about9persquaremile. Theflightfromovercrowdednessaffectsthemigrationfromsnowbelttomore-bearableclimates.Nowheredo1980censusstatisticsdramatizemoretheAmericansearchforspaciouslivingthanintheFarWest.ThereCaliforniaadded3.7milliontoitspopulationinthe1970smorethananyotherstate. InthatdecadehoweverlargenumbersalsomigratedfromCaliforniamostlytootherpartsoftheWest.Oftentheychose―andstillarechoosing―somewhatcolderclimatessuchasOregonIdahoandAlaskainordertoescapesmogcrimeandotherplaguesofurbanizationintheGoldenState. AsaresultCalifornia’’sgrowthratedroppedduringthe1970sto18.5percent―littlemorethantwothirdsthe1960s’’growthfigureandconsiderablybelowthatofotherWesternstates. Discernedfromtheperplexingpictureofpopulationgrowththe1980censusprovidedAmericain1970s____________.
请结合我国当前课程与教学改革的实际情况就我国课程改革的未来走向和教学改革的未来发展谈一谈自己的看法
用道德两难故事研究儿童道德发展的心理学家是
19世纪初拿破仑在教育上实行了典型的体制
Ifafarmerwishestosucceedhemusttrytokeepawidegapbetweenhisconsumptionandhisproduction.Hemuststorealargequantityofgrain________consumingallhisgrainimmediately.Hecancontinuetosupporthimselfandhisfamily________heproducesasurplus.Hemustusethissurplusinthreeways:asseedforsowingasaninsurance________theunpredictableeffectsofbadweatherandasacommoditywhichhemustsellinorderto________oldagriculturalimplementsandobtainchemicalfertilizersto______thesoil.Hemayalsoneedmoneytoconstructirrigation______andimprovehisfarminotherways.Ifnosurplusisavailableafarmercannotbe______.Hemusteithersellsomeofhispropertyor________extrafundsintheformofloans.Naturallyhewilltrytoborrowmoneyatalow________ofinterestbutloansofthiskindarenot________obtainable.
Ifafarmerwishestosucceedhemusttrytokeepawidegapbetweenhisconsumptionandhisproduction.Hemuststorealargequantityofgrain________consumingallhisgrainimmediately.Hecancontinuetosupporthimselfandhisfamily________heproducesasurplus.Hemustusethissurplusinthreeways:asseedforsowingasaninsurance________theunpredictableeffectsofbadweatherandasacommoditywhichhemustsellinorderto________oldagriculturalimplementsandobtainchemicalfertilizersto______thesoil.Hemayalsoneedmoneytoconstructirrigation______andimprovehisfarminotherways.Ifnosurplusisavailableafarmercannotbe______.Hemusteithersellsomeofhispropertyor________extrafundsintheformofloans.Naturallyhewilltrytoborrowmoneyatalow________ofinterestbutloansofthiskindarenot________obtainable.
试析学校教育在个体发展中的特殊功能
Ifafarmerwishestosucceedhemusttrytokeepawidegapbetweenhisconsumptionandhisproduction.Hemuststorealargequantityofgrain________consumingallhisgrainimmediately.Hecancontinuetosupporthimselfandhisfamily________heproducesasurplus.Hemustusethissurplusinthreeways:asseedforsowingasaninsurance________theunpredictableeffectsofbadweatherandasacommoditywhichhemustsellinorderto________oldagriculturalimplementsandobtainchemicalfertilizersto______thesoil.Hemayalsoneedmoneytoconstructirrigation______andimprovehisfarminotherways.Ifnosurplusisavailableafarmercannotbe______.Hemusteithersellsomeofhispropertyor________extrafundsintheformofloans.Naturallyhewilltrytoborrowmoneyatalow________ofinterestbutloansofthiskindarenot________obtainable.
从下列两题中任选一题作答 Ⅰ．布鲁纳学习理论与奥苏贝尔学习理论有何相同点和不同点 Ⅱ．假如你想对中小学教育乱收费问题进行研究请设计一个研究程序
Financialengineersdon’’twearwhitelabcoats.Theydon’’texperimentonratsorperformgaschromatography气相层析.Theirrawmaterial-money-isn’’tasshowyaswhatbiologistsandphysicistsinvestigate.Buttheinnovationstheyproducewillcontributejustasmuchtoeconomicgrowth. Maybemoreinfactbecausewithoutthescienceoffinanceallothersciencesarejustabunchofneatconcepts.Ideasbegintotributetohumanbettermentwhenthey’’refinanced-byventurecapitalstockofferingsloansorbuyouts.Asmoothlyoperatingfinancialsystemshowersmoneyongoodideas.Equallyimportantitcutsofffundingtotiredideasandtiredcompaniessotheirassetscanbeemployedmoreefficientlyelsewhere. Inthe21stcenturyeconomyinnovationinfinancewillincreaseinconcertwiththeincreaseincompetition.Partlybecauseofderegulationandglobalizationcompetitionshouldgettougherandmarginsthinner.Asproductssuchashomemortgageloansbecomecommoditizedfinancial-servicecompanieswillbeforcedtogetmorecreative. Financialtechnologywillkeepfeedingoffinformationtechnology.Thesecrettosuccesswillbeastrongsoftwareplatformwhichwilllowerthecostofgeneralserviceswhilemakingitpossibletocreatehigh-marginvariationsaswell.Afewcompaniesthatgetitrightcanspinawayfromtherestandbecomestrongerandstronger. Inthenewworldoffinancesizecounts.Bigcompaniesenjoyeconomiesofscaleandnamerecognitionandtheycanbesaferbecausetheirbetsarespreadacrossmoreregionsandmarketsegments.ThevalueofU.S.bankmergersinthefirsthalfof1998wasgreaterthanthatofthethreepreviousyearscombined.Themergersareoccurringacrossindustriesaswell. Attheotherextremewillbespecialiststhatsurvivebydoingonethingeitherverycheaplyorexceptionallywell.Byofferinglowerpricesorbetterservicespecialistswilldisciplinethefinancialsupermarkets;thebigguysknowtheircustomerscanwalkawayiftheygetarawdeal.Thereisnowaywearegoingtomaximizeashort-termtransactionalbenefitattheriskofdestroyingalong-termrelationshipsaysChaseManhattanCorp.Vice-ChairmanJosephG.Sponholz. Predictablythebiggestwinnersfromfinancialinnovationwillbecompaniesandfamiliesthathavecomplexfinances.Banksalreadyshowsignsoflosinginterestinpeoplewhowantjustplaincheckingaccounts. Butasincomesandwealthrisemorepeoplewillfindthemselvesthrustintotheroleofassetmanagers.Businessestoowillhavetobecomemoresophisticated-ifonlytokeeppacewithfinanciallyinnovativerivals. Intheabsenceoffinancialsupportallscientificconcepts
学校德育对政治经济文化发生影响是因为具有
遗传素质对人的发展的作用和影响不包括
Allthecharacteristicsandabilitiesapersonacquiresandalldevelopmentalchangesresultfromtwobasicthoughcomplexprocesses:learningandmaturation.Sincethetwoprocessesalmostalwaysinteractitisdifficulttoseparatetheireffectsfromeachotherortospecifytherelativecontributionofeachtoachild’’sdevelopment.Clearlygrowthinheightisnotlearnedbutdependsonmaturationabiologicalprocess.Butimprovementsinmotoractivitiessuchaswalkingdependonmaturationandlearningandtheinteractionbetweenthem. WhatthenarematurationandlearningDevelopmentalpsychologistsarenotentirelyinagreementthoughthereisacommoncoreofacceptedmeaning.Thusalldefinitionsofmaturationstressorganicprocessesorstructuralchangesoccurringwithinanindividual’’sbodythatarerelativelyindependentofexternalenvironmentalconditionsexperiencesorpractice.Bymaturationitismeantdevelopmentoftheorganismasafunctionoftimeorage. Learninghasalsobeendefinedindiversewaysbutthetermgenerallyreferstochangesinbehaviororperformanceasaconsequenceofexperience.Learningistheprocessbywhichanactivityoriginatesorischangedthroughtrainingproceduresasdistinguishedfromchangesnotattributabletotraining. Anumberofimportantandstimulatingtheoriesoflearninghavebeenproposedeachwithitsownsetofprinciplesandhypothesesforexplainingthelearningprocess.Forourpurposeswedonotneedtobeconcernedwiththespecificdetailsofthelearningprocesseventhoughlearningplaysthemostimportantroleinmostaspectsofdevelopmentandchange.Weshallemployonlyafewgenerallyacceptedprinciplesoflearninginthisdiscussion. Specificallyweaccepttheprinciplethatachildwilllearnaresponsemoreeffectivelyandmorethoroughlyifheismotivatedtolearnit.Moreoverhewilllearnaresponsebetterifheisrewardedforlearningit.Accordingtothisviewthemorearesponseisrewardedthestrongeritbecomesandthemorelikelyitistoberepeated.AlthoughmostlearninginvolvesmotivationandrewardIbelievesomelearningdoesoccurwithoutthem. Asfortheinterrelationshipsbetweenmaturationandlearningprocessageneralprinciplemaybeprovided:maturationisessentialtolearning. Thesubjectdiscussedinthetextmainlybelongstotherealmof
教师知识结构的核心是
Non-indigenousnon-nativespeciesofplantsandanimalsarrivebywayoftwogeneraltypesofpathways.FirstspecieshavingoriginsoutsidetheUnitedStatesmayenterthecountryandbecomeestablishedeitherasfree-livingpopulationsorunderhumancultivation-forexampleinagriculturehorticultureaquacultureoraspets.Somecultivatedspeciessubsequentlyescapeorarereleasedandalsobecomeestablishedasfree-livingpopulations.SecondspeciesofeitherU.S.orforeignoriginandalreadywithintheUnitedStatesmayspreadtonewlocales.Pathwaysofbothtypesincludeintentionalaswellasunintentionalspeciestransfers.Ratesofspeciesmovementdrivenbyhumantransformationsofnaturalenvironmentsaswellasbyhumanmobility-throughcommercetourismandtravel-greatlyexceednaturalratesbycomparison.Whilegeographicdistributionsofspeciesnaturallyexpandorcontractoverhistoricaltimeintervalstenstohundredsofyearsspecies’’rangesrarelyexpandthousandsofmilesoracrossphysicalbarrierssuchasoceansormountains. Habitatmodificationcancreateconditionsfavorabletotheestablishmentofnon-indigenousspecies.Soildisturbedinconstructionandagricultureisopenforcolonizationbynon-indigenousweedswhichinturnmayprovidehabitatsforthenon-indigenousinsectsthatevolvedwiththem.Human-generatedchangesinfirefrequencygrazingintensityaswellassoilstabilityandnutrientlevelssimilarlyfacilitatethespreadandestablishmentofnon-indigenousplants.Whenhumanchangestonaturalenvironmentsspanlargegeographicalareastheyeffectivelycreatepassagesforspeciesmovementbetweenpreviouslyisolatedlocales.TherapidspreadoftheRussianwheataphidtofifteenstatesinjusttwoyearsfollowingits1986arrivalhasbeenattributedinparttotheprevalenceofalternativehostplantsthatareavailablewhenwheatisnot.Manyofthesearenon-indigenousgrassesrecommendedforplantingonthefortymillionormoreacresenrolledintheU.S.DepartmentofAgricultureConservationReserveProgram. Anumberoffactorsperplexquantitativeevaluationoftherelativeimportanceofvariousentrypathways.Timelagsoftenoccurbetweenestablishmentofnon-indigenousspeciesandtheirdetectionandtracingthepathwayforalong-establishedspeciesisdifficult.Expertsestimatethatnon-indigenousweedsareusuallydetectedonlyafterhavingbeeninthecountryforthirtyyearsorhavingspreadtoatleasttenthousandacres.Inadditionfederalportinspectionalthoughamajorsourceofinformationonnon-indigenousspeciespathwaysespeciallyforagriculturepestsprovidesdataonlywhensuchspeciesenterviaclosely-examinedroutes.Finallysomecomparisonsbetweenpathwaysdefyquantitativeanalysis-forexamplewhichismoreimportant:theentrypathofoneveryharmfulspeciesoronebywhichmanybutlessharmfulspeciesenterthecountry Whichofthefollowingstatementsaboutspeciesmovementisbestsupportedbythetext
原始社会末期担负教育年轻一代主要任务的是
讲授法都是注入式教学
Non-indigenousnon-nativespeciesofplantsandanimalsarrivebywayoftwogeneraltypesofpathways.FirstspecieshavingoriginsoutsidetheUnitedStatesmayenterthecountryandbecomeestablishedeitherasfree-livingpopulationsorunderhumancultivation-forexampleinagriculturehorticultureaquacultureoraspets.Somecultivatedspeciessubsequentlyescapeorarereleasedandalsobecomeestablishedasfree-livingpopulations.SecondspeciesofeitherU.S.orforeignoriginandalreadywithintheUnitedStatesmayspreadtonewlocales.Pathwaysofbothtypesincludeintentionalaswellasunintentionalspeciestransfers.Ratesofspeciesmovementdrivenbyhumantransformationsofnaturalenvironmentsaswellasbyhumanmobility-throughcommercetourismandtravel-greatlyexceednaturalratesbycomparison.Whilegeographicdistributionsofspeciesnaturallyexpandorcontractoverhistoricaltimeintervalstenstohundredsofyearsspecies’’rangesrarelyexpandthousandsofmilesoracrossphysicalbarrierssuchasoceansormountains. Habitatmodificationcancreateconditionsfavorabletotheestablishmentofnon-indigenousspecies.Soildisturbedinconstructionandagricultureisopenforcolonizationbynon-indigenousweedswhichinturnmayprovidehabitatsforthenon-indigenousinsectsthatevolvedwiththem.Human-generatedchangesinfirefrequencygrazingintensityaswellassoilstabilityandnutrientlevelssimilarlyfacilitatethespreadandestablishmentofnon-indigenousplants.Whenhumanchangestonaturalenvironmentsspanlargegeographicalareastheyeffectivelycreatepassagesforspeciesmovementbetweenpreviouslyisolatedlocales.TherapidspreadoftheRussianwheataphidtofifteenstatesinjusttwoyearsfollowingits1986arrivalhasbeenattributedinparttotheprevalenceofalternativehostplantsthatareavailablewhenwheatisnot.Manyofthesearenon-indigenousgrassesrecommendedforplantingonthefortymillionormoreacresenrolledintheU.S.DepartmentofAgricultureConservationReserveProgram. Anumberoffactorsperplexquantitativeevaluationoftherelativeimportanceofvariousentrypathways.Timelagsoftenoccurbetweenestablishmentofnon-indigenousspeciesandtheirdetectionandtracingthepathwayforalong-establishedspeciesisdifficult.Expertsestimatethatnon-indigenousweedsareusuallydetectedonlyafterhavingbeeninthecountryforthirtyyearsorhavingspreadtoatleasttenthousandacres.Inadditionfederalportinspectionalthoughamajorsourceofinformationonnon-indigenousspeciespathwaysespeciallyforagriculturepestsprovidesdataonlywhensuchspeciesenterviaclosely-examinedroutes.Finallysomecomparisonsbetweenpathwaysdefyquantitativeanalysis-forexamplewhichismoreimportant:theentrypathofoneveryharmfulspeciesoronebywhichmanybutlessharmfulspeciesenterthecountry Todeterminetheentrypathwayforanon-nativespeciesisLEASTlikelytodependon
简述随机分派控制组前后测设计的格式及优缺点
Allthecharacteristicsandabilitiesapersonacquiresandalldevelopmentalchangesresultfromtwobasicthoughcomplexprocesses:learningandmaturation.Sincethetwoprocessesalmostalwaysinteractitisdifficulttoseparatetheireffectsfromeachotherortospecifytherelativecontributionofeachtoachild’’sdevelopment.Clearlygrowthinheightisnotlearnedbutdependsonmaturationabiologicalprocess.Butimprovementsinmotoractivitiessuchaswalkingdependonmaturationandlearningandtheinteractionbetweenthem. WhatthenarematurationandlearningDevelopmentalpsychologistsarenotentirelyinagreementthoughthereisacommoncoreofacceptedmeaning.Thusalldefinitionsofmaturationstressorganicprocessesorstructuralchangesoccurringwithinanindividual’’sbodythatarerelativelyindependentofexternalenvironmentalconditionsexperiencesorpractice.Bymaturationitismeantdevelopmentoftheorganismasafunctionoftimeorage. Learninghasalsobeendefinedindiversewaysbutthetermgenerallyreferstochangesinbehaviororperformanceasaconsequenceofexperience.Learningistheprocessbywhichanactivityoriginatesorischangedthroughtrainingproceduresasdistinguishedfromchangesnotattributabletotraining. Anumberofimportantandstimulatingtheoriesoflearninghavebeenproposedeachwithitsownsetofprinciplesandhypothesesforexplainingthelearningprocess.Forourpurposeswedonotneedtobeconcernedwiththespecificdetailsofthelearningprocesseventhoughlearningplaysthemostimportantroleinmostaspectsofdevelopmentandchange.Weshallemployonlyafewgenerallyacceptedprinciplesoflearninginthisdiscussion. Specificallyweaccepttheprinciplethatachildwilllearnaresponsemoreeffectivelyandmorethoroughlyifheismotivatedtolearnit.Moreoverhewilllearnaresponsebetterifheisrewardedforlearningit.Accordingtothisviewthemorearesponseisrewardedthestrongeritbecomesandthemorelikelyitistoberepeated.AlthoughmostlearninginvolvesmotivationandrewardIbelievesomelearningdoesoccurwithoutthem. Asfortheinterrelationshipsbetweenmaturationandlearningprocessageneralprinciplemaybeprovided:maturationisessentialtolearning. Asisstatedinthetextlearning
DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat. DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat.
Ifafarmerwishestosucceedhemusttrytokeepawidegapbetweenhisconsumptionandhisproduction.Hemuststorealargequantityofgrain________consumingallhisgrainimmediately.Hecancontinuetosupporthimselfandhisfamily________heproducesasurplus.Hemustusethissurplusinthreeways:asseedforsowingasaninsurance________theunpredictableeffectsofbadweatherandasacommoditywhichhemustsellinorderto________oldagriculturalimplementsandobtainchemicalfertilizersto______thesoil.Hemayalsoneedmoneytoconstructirrigation______andimprovehisfarminotherways.Ifnosurplusisavailableafarmercannotbe______.Hemusteithersellsomeofhispropertyor________extrafundsintheformofloans.Naturallyhewilltrytoborrowmoneyatalow________ofinterestbutloansofthiskindarenot________obtainable.
测验首先考虑的应是信度其次才是效度
Ifafarmerwishestosucceedhemusttrytokeepawidegapbetweenhisconsumptionandhisproduction.Hemuststorealargequantityofgrain________consumingallhisgrainimmediately.Hecancontinuetosupporthimselfandhisfamily________heproducesasurplus.Hemustusethissurplusinthreeways:asseedforsowingasaninsurance________theunpredictableeffectsofbadweatherandasacommoditywhichhemustsellinorderto________oldagriculturalimplementsandobtainchemicalfertilizersto______thesoil.Hemayalsoneedmoneytoconstructirrigation______andimprovehisfarminotherways.Ifnosurplusisavailableafarmercannotbe______.Hemusteithersellsomeofhispropertyor________extrafundsintheformofloans.Naturallyhewilltrytoborrowmoneyatalow________ofinterestbutloansofthiskindarenot________obtainable.
Non-indigenousnon-nativespeciesofplantsandanimalsarrivebywayoftwogeneraltypesofpathways.FirstspecieshavingoriginsoutsidetheUnitedStatesmayenterthecountryandbecomeestablishedeitherasfree-livingpopulationsorunderhumancultivation-forexampleinagriculturehorticultureaquacultureoraspets.Somecultivatedspeciessubsequentlyescapeorarereleasedandalsobecomeestablishedasfree-livingpopulations.SecondspeciesofeitherU.S.orforeignoriginandalreadywithintheUnitedStatesmayspreadtonewlocales.Pathwaysofbothtypesincludeintentionalaswellasunintentionalspeciestransfers.Ratesofspeciesmovementdrivenbyhumantransformationsofnaturalenvironmentsaswellasbyhumanmobility-throughcommercetourismandtravel-greatlyexceednaturalratesbycomparison.Whilegeographicdistributionsofspeciesnaturallyexpandorcontractoverhistoricaltimeintervalstenstohundredsofyearsspecies’’rangesrarelyexpandthousandsofmilesoracrossphysicalbarrierssuchasoceansormountains. Habitatmodificationcancreateconditionsfavorabletotheestablishmentofnon-indigenousspecies.Soildisturbedinconstructionandagricultureisopenforcolonizationbynon-indigenousweedswhichinturnmayprovidehabitatsforthenon-indigenousinsectsthatevolvedwiththem.Human-generatedchangesinfirefrequencygrazingintensityaswellassoilstabilityandnutrientlevelssimilarlyfacilitatethespreadandestablishmentofnon-indigenousplants.Whenhumanchangestonaturalenvironmentsspanlargegeographicalareastheyeffectivelycreatepassagesforspeciesmovementbetweenpreviouslyisolatedlocales.TherapidspreadoftheRussianwheataphidtofifteenstatesinjusttwoyearsfollowingits1986arrivalhasbeenattributedinparttotheprevalenceofalternativehostplantsthatareavailablewhenwheatisnot.Manyofthesearenon-indigenousgrassesrecommendedforplantingonthefortymillionormoreacresenrolledintheU.S.DepartmentofAgricultureConservationReserveProgram. Anumberoffactorsperplexquantitativeevaluationoftherelativeimportanceofvariousentrypathways.Timelagsoftenoccurbetweenestablishmentofnon-indigenousspeciesandtheirdetectionandtracingthepathwayforalong-establishedspeciesisdifficult.Expertsestimatethatnon-indigenousweedsareusuallydetectedonlyafterhavingbeeninthecountryforthirtyyearsorhavingspreadtoatleasttenthousandacres.Inadditionfederalportinspectionalthoughamajorsourceofinformationonnon-indigenousspeciespathwaysespeciallyforagriculturepestsprovidesdataonlywhensuchspeciesenterviaclosely-examinedroutes.Finallysomecomparisonsbetweenpathwaysdefyquantitativeanalysis-forexamplewhichismoreimportant:theentrypathofoneveryharmfulspeciesoronebywhichmanybutlessharmfulspeciesenterthecountry Whichofthefollowingmaybestexpressthechiefpurposeofthelastparagraph.’’
DoanimalshaverightsThisishowthequestionisusuallyput.Itsoundslikeausefulground-clearingwaytostart.71.Actuallyitisn’’tbecauseitassumesthatthereisanagreedaccountofhumanfightswhichissomethingtheworlddoesnothave. Ononeviewofrightstobesureitnecessarilyfollowsthatanimalshavenone.72.Somephilosophersarguethatrightsexistonlywithinasocialcontractaspartofanexchangeofdutiesandentitlements.Thereforeanimalscannothaverights.Theideaofpunishingatigerthatkillssomebodyisabsurdforexactlythesamereasonsoistheideathattigershaverights.Howeverthisisonlyoneaccountandbynomeansanuncontestedone.Itdeniesrightsnotonlytoanimalsbutalsotosomepeople―forinstancetoinfantsthementallyincapableandfuturegenerations.Inadditionitisunclearwhatforceacontractcanhaveforpeoplewhoneverconsentedtoit:howdoyoureplytosomebodywhosaysIdon’’tlikethiscontract Thepointisthis:withoutagreementontherightsofpeoplearguingabouttherightsofanimalsisfruitless.73.Itleadsthediscussiontoextremesattheoutset:itinvitesyoutothinkthatanimalsshouldbetreatedeitherwiththeconsiderationhumansextendtootherhumansorwithnoconsiderationatall.Thisisafalsechoice.Bettertostartwithanothermorefundamentalquestion:isthewaywetreatanimalsamoralissueatall Manydenyit.74.Arguingfromtheviewthathumansaredifferentfromanimalsineveryrelevantrespectextremistsofthiskindthinkthatanimalslieoutsidetheareaofmoralchoice.Anyregardforthesufferingofanimalsisseenatamistake―asentimentaldisplacementoffeelingthatshouldproperlybedirectedtootherhumans. Thisviewwhichholdsthattorturingamonkeyismorallyequivalenttochoppingwoodmayseembravelylogical.Infactitissimplyshallow:theconfusedcentreisrighttorejectit.Themostelementaryformofmoralreasoning―theethicalequivalentoflearningtocrawl―istoweighother’’sinterestsagainstone’’sown.Thisinturnrequiressympathyandimagination:withoutwhichthereisnocapacityformoralthought.Toseeananimalinpainisenoughformosttoengagesympathy.75.Whenthathappensitisnotamistake:itismankind’’sinstinctformoralreasoninginactionaninstinctthatshouldbeencouragedratherthanlaughedat.
Financialengineersdon’’twearwhitelabcoats.Theydon’’texperimentonratsorperformgaschromatography气相层析.Theirrawmaterial-money-isn’’tasshowyaswhatbiologistsandphysicistsinvestigate.Buttheinnovationstheyproducewillcontributejustasmuchtoeconomicgrowth. Maybemoreinfactbecausewithoutthescienceoffinanceallothersciencesarejustabunchofneatconcepts.Ideasbegintotributetohumanbettermentwhenthey’’refinanced-byventurecapitalstockofferingsloansorbuyouts.Asmoothlyoperatingfinancialsystemshowersmoneyongoodideas.Equallyimportantitcutsofffundingtotiredideasandtiredcompaniessotheirassetscanbeemployedmoreefficientlyelsewhere. Inthe21stcenturyeconomyinnovationinfinancewillincreaseinconcertwiththeincreaseincompetition.Partlybecauseofderegulationandglobalizationcompetitionshouldgettougherandmarginsthinner.Asproductssuchashomemortgageloansbecomecommoditizedfinancial-servicecompanieswillbeforcedtogetmorecreative. Financialtechnologywillkeepfeedingoffinformationtechnology.Thesecrettosuccesswillbeastrongsoftwareplatformwhichwilllowerthecostofgeneralserviceswhilemakingitpossibletocreatehigh-marginvariationsaswell.Afewcompaniesthatgetitrightcanspinawayfromtherestandbecomestrongerandstronger. Inthenewworldoffinancesizecounts.Bigcompaniesenjoyeconomiesofscaleandnamerecognitionandtheycanbesaferbecausetheirbetsarespreadacrossmoreregionsandmarketsegments.ThevalueofU.S.bankmergersinthefirsthalfof1998wasgreaterthanthatofthethreepreviousyearscombined.Themergersareoccurringacrossindustriesaswell. Attheotherextremewillbespecialiststhatsurvivebydoingonethingeitherverycheaplyorexceptionallywell.Byofferinglowerpricesorbetterservicespecialistswilldisciplinethefinancialsupermarkets;thebigguysknowtheircustomerscanwalkawayiftheygetarawdeal.Thereisnowaywearegoingtomaximizeashort-termtransactionalbenefitattheriskofdestroyingalong-termrelationshipsaysChaseManhattanCorp.Vice-ChairmanJosephG.Sponholz. Predictablythebiggestwinnersfromfinancialinnovationwillbecompaniesandfamiliesthathavecomplexfinances.Banksalreadyshowsignsoflosinginterestinpeoplewhowantjustplaincheckingaccounts. Butasincomesandwealthrisemorepeoplewillfindthemselvesthrustintotheroleofassetmanagers.Businessestoowillhavetobecomemoresophisticated-ifonlytokeeppacewithfinanciallyinnovativerivals. Inthecurrentcenturyfinancialcompanieswill
Allthecharacteristicsandabilitiesapersonacquiresandalldevelopmentalchangesresultfromtwobasicthoughcomplexprocesses:learningandmaturation.Sincethetwoprocessesalmostalwaysinteractitisdifficulttoseparatetheireffectsfromeachotherortospecifytherelativecontributionofeachtoachild’’sdevelopment.Clearlygrowthinheightisnotlearnedbutdependsonmaturationabiologicalprocess.Butimprovementsinmotoractivitiessuchaswalkingdependonmaturationandlearningandtheinteractionbetweenthem. WhatthenarematurationandlearningDevelopmentalpsychologistsarenotentirelyinagreementthoughthereisacommoncoreofacceptedmeaning.Thusalldefinitionsofmaturationstressorganicprocessesorstructuralchangesoccurringwithinanindividual’’sbodythatarerelativelyindependentofexternalenvironmentalconditionsexperiencesorpractice.Bymaturationitismeantdevelopmentoftheorganismasafunctionoftimeorage. Learninghasalsobeendefinedindiversewaysbutthetermgenerallyreferstochangesinbehaviororperformanceasaconsequenceofexperience.Learningistheprocessbywhichanactivityoriginatesorischangedthroughtrainingproceduresasdistinguishedfromchangesnotattributabletotraining. Anumberofimportantandstimulatingtheoriesoflearninghavebeenproposedeachwithitsownsetofprinciplesandhypothesesforexplainingthelearningprocess.Forourpurposeswedonotneedtobeconcernedwiththespecificdetailsofthelearningprocesseventhoughlearningplaysthemostimportantroleinmostaspectsofdevelopmentandchange.Weshallemployonlyafewgenerallyacceptedprinciplesoflearninginthisdiscussion. Specificallyweaccepttheprinciplethatachildwilllearnaresponsemoreeffectivelyandmorethoroughlyifheismotivatedtolearnit.Moreoverhewilllearnaresponsebetterifheisrewardedforlearningit.Accordingtothisviewthemorearesponseisrewardedthestrongeritbecomesandthemorelikelyitistoberepeated.AlthoughmostlearninginvolvesmotivationandrewardIbelievesomelearningdoesoccurwithoutthem. Asfortheinterrelationshipsbetweenmaturationandlearningprocessageneralprinciplemaybeprovided:maturationisessentialtolearning. Intheauthor’’sopinion
原理转变或信念转变又指
Emergingfromthe1980censusisthepictureofanationdevelopingmoreandmoreregionalcompetitionaspopulationgrowthintheNortheastandMidwestreachesanearstandstill. Thisdevelopment―anditsstrongimplicationsforUSpoliticsandeconomyinyearsahead―hasenthronedtheSouthasAmerica’’smostdenselypopulateregionforthefirsttimeinthehistoryofthenation’’sheadcounting. AltogethertheUSpopulationroseinthe1970sby23.2millionpeople―numericallythethird-largestgrowtheverrecordedinasingledecade.Evensothatgainaddsuptoonly11.4percentlowestinAmericanannualrecordsexceptfortheDepressionyears. AmericanshavebeenmigratingsouthandwestinlargernumberssinceWorldWarⅡandthepatternstillprevails. Threesun-beltstates―FloridaTexasandCalifornia―togetherhadnearly10millionmorepeoplein1980thanadecadeearlier.AmonglargecitiesSanDiegomovedfrom14thto8thandSanAntoniofrom15thto10th―withClevelandandWashingtonD.C.droppingoutofthetop10. Notallthatshiftcanbeattributedtothemovementoutofthesnowbeltcensusofficialssay.Nonstopwavesofimmigrantsplayedaroletoo―andsodidbiggercropsofbabiesasyesterday’’sbabyboomgenerationreacheditschild-bearingyears. Moreoverdemographersseethecontinuingshiftsouthandwestasjoinedbyarelatedbutnewerphenomenon:MoreandmoreAmericansapparentlyarelookingnotjustforplaceswithmorejobsbutwithfewerpeopletoo.Someinstances: RegionallytheRockyMountainstatesreprovedthemostrapidgrowthrate―37.1percentsince1970inavastareawithonly5percentoftheUSpopulation. AmongstatesNevadaandArizonagrewfastestofall:63.5and53.1percentrespectively.ExceptforFloridaandTexasthetop10inrateofgrowthiscomposedofWesternstatewith7.5millionpeople―about9persquaremile. Theflightfromovercrowdednessaffectsthemigrationfromsnowbelttomore-bearableclimates.Nowheredo1980censusstatisticsdramatizemoretheAmericansearchforspaciouslivingthanintheFarWest.ThereCaliforniaadded3.7milliontoitspopulationinthe1970smorethananyotherstate. InthatdecadehoweverlargenumbersalsomigratedfromCaliforniamostlytootherpartsoftheWest.Oftentheychose―andstillarechoosing―somewhatcolderclimatessuchasOregonIdahoandAlaskainordertoescapesmogcrimeandotherplaguesofurbanizationintheGoldenState. AsaresultCalifornia’’sgrowthratedroppedduringthe1970sto18.5percent―littlemorethantwothirdsthe1960s’’growthfigureandconsiderablybelowthatofotherWesternstates. Wecanseefromtheavailablestatisticsthat____________.
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