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ThehistoryofEnglishisconventionallyifperhapstooneatlydividedintothreeperiodsusuallycalledoldorAnglo-SaxonEnglishMiddleEnglishandModernEnglish.TheearliestperiodbeginswiththemigrationofcertainGermanictribesfromthecontinenttoBritaininthefifthcenturyA.Dthoughnorecordsoftheirlanguagesurvivefrombeforetheseventhcenturyanditcontinuesuntiltheendoftheseventhcenturyorabitlater.BythattimeLatinOldNorsethelanguageoftheVikinginvadersandespeciallytheAnglo-NormanFrenchofthedominantclassaftertheNormanConquestin1066hadbeguntohaveasubstantialimpactonthevocabularyandthewell-developedinflectionalsystemthattypifiesthegrammarofOldEnglishhadbeguntobreakdown. TheperiodofMiddleEnglishextendsroughlyformthetwelfthcenturythroughthefifteenth.TheinfluenceofFrenchandLatinoftenbywayofFrenchuponthevocabularycontinuedthroughouttheperiodthelossofsomeinflectionsandthereductionofothersacceleratedandmanychangestookplacewithinthegrammaticalsystemsofthelanguage.AtypicalprosepassagespeciallyonefromthelaterpartoftheperiodwillnothavesuchaforeignlooktousastheproseofOldEnglishbutitwillnotbemistakenforcontemporarywritingeither. TheperiodofModernEnglishextendsfromthesixteenthcenturytoourownday.TheearlypartofthisperiodsawthecompletionofarevolutioninvoweldistributionthathadbeguninlateMiddleEnglishandthateffectivelybroughtthelanguagetosomethingresemblingitspresentpattern.OtherimportantearlydevelopmentsincludethestabilizingeffectonspellingoftheprintingpressandthebeginningofthedirectinfluenceofLatinandtoalesserextentGreekonthevocabulary.LaterasEnglishcameintocontactwithotherculturesaroundtheworldanddistinctivedialectsofEnglishdevelopedinthemanyareaswhichBritainhadcolonizednumerousotherlanguagesmadesmallbutinterestingcontributionstoourword-stock. WhatisthemostremarkablecharacteristicofModernEnglish
在下列经济行为中属于货币执行流通手段职能的有
商品交换是按照价值量相等的原则进行的在货币出现以后等价交换的要求则表现为
Askanyemployeeatanlevelinanycompanywhattheydislikeabouttheirjobandsomewhereonthelistyouwillfindacomplaintaboutthesystemofperformanceappraisals.Itdoesseemstrangethatanideawhichwassupposedtobenefitbothindividualsandthecompanyshouldbesouniversallydislikedbutthestaffappraisalisnowoneofthebiggestcausesofdissatisfactionatwork.IntheUnitedStatestherehaveevenbeencasesofunhappyworkerstakingtheiremployerstocourtoverappraisalinterviews.Itisinacompany’sinteresttocombatthissituationbutbeforereversingtheappraisal’snegativeassociationsanorganizationneedstopinpointtheunderlyingreasonswhichhavecontributedtothem. Problemswithappraisalscanfallintotwomainareas--thosearisingfromtheschemeitselfandthosearisingfromtheimplementationandunderstandingofthatscheme.Naturallyitiseasiertotacklethoseintheformercategory;indeedsomecompanieshavedevelopedschemesfollowinglegalguidelines.Theseguidelinessuggestthatasuccessfulschemeshouldhaveaclearappealprocessthatanynegativefeedbackshouldbeaccompaniedby"evidence"suchasdatestimesandoutcomesandthatmostimportantlyratingsshouldreflectspecificmeasurableelementsofthejobrequirements. Itisnotalwaysnecessarytoresorttolegaladvicehowever.Somechangestocurrentschemesaresimplyamatteroflogic.Forinstanceifemployeesareconstantlyencouragedtoworkinteamsandtoassumejointresponsibilityfortheirsuccessesandfailuresitmakeslittlesensefortheappraisalstofocusonindividualsasthismayleadtoresentmentsandcreatedivisionswithinthegroup.Itispossibleandinsomecasesmoresuitabletoarrangeappraisalswhereperformanceisratedforthegroup. Staffalsoneedtobeeducatedaboutthebestwaytoapproachappraisals.Managersoftenfindthattheyareuncomfortablebeingaskedtotakeonamoresupportiverolethantheyareusedtowithouthavinghadanytraining.Thosebeingappraisedmayseeitasachancetoairtheirgrievancesandhighlightthecompany’sfailingsratherthanconsidertheirownrole.Bothpartiesviewtheprocessasanecessaryeviltobegonethroughonceortwiceayearandthenforgottenabout.Theimportancegiventotheappraisalstemsfromthefactthatdespiteallthetalkoftheinterviewbeingachanceformanagementandemployeestocometogetherandexchangeideassetjointtargetsandimprovethewaydecisionsarereachedtherealityisthattheyareoftennothingmorethanthepretextonwhichpayrisesaregivenornotgiven.Payisofcourseasubjectthatalwaysleadstoproblems. GiventheproblemsassociatedwithstaffappraisalswhyisitthatwithnolegalrequirementcompaniescontinuetorunthemTheanswerissimpleitisimpossibletomanagesomethingyouknownothingabout.AsanyHumanResourcesmanagercantellyouthebestwaytolearnaboutsomeoneistotalktothem.Effectivepeoplemanagementreliesonknowledgeandappraisalsarestillthebestwaytobuildupthatbankofknowledge. Whatdoseniorstafffinddifficultaboutdoingappraisals
在商品经济中形成价值的抽象劳动的支出必须借助于
通货膨胀与通货紧缩是两种不同的经济现象但它们的共同点在于
Mostpeoplewouldbe1bythehighqualityofmedicine2tomostAmericans.Thereisalotofspecializationagreatdealof3totheindividuala4amountofadvancedtechnicalequipmentand5effortnottomakemistakesbecauseofthefinancialriskwhichdoctorsandhospitalsmust6inthecourtsifthey7thingsbadly. ButtheAmericansareinamess.Theproblemisthewayin8healthcareisorganizedand9.10topubicbeliefitisnotjustafreecompetitionsystem.Theprivatesystemhasbeenjoinedalargepublicsystembecauseprivatecarewassimplynot11thelessfortunateandtheelderly. Butevenwiththishugepublicpartofthesystem12thisyearwilleatup84.5billiondollars—morethan10percentoftheU.S.Budget—largenumberofAmericansareleft13.Theseincludeabouthalfthe11millionunemployedandthosewhofailtomeetthestrictlimits14incomefixedbyagovernmenttryingtomakesavingswhereitcan. Thebasicproblemhoweveristhatthereisnocentralcontrol15thehealthsystem.Thereisno16towhatdoctorsandhospitalschargefortheirservicesotherthanwhatthepublicisabletopay.Thenumberofdoctorshasshotupandpriceshaveclimbed.Whenfacedwithtoothacheasickchildoraheartattackalltheunfortunatepersonsconcernedcandois17up.Twothirdsofthepopulation18coveredbymedicalinsurance.Doctorschargeasmuchastheywant19thattheinsurancecompanywillpaythebill. TherisingcostofmedicineintheU.S.A.isamongthemostworryingproblemsfacingthecountry.In1981thecountry’shealthbillclimbed15.9percent--abouttwiceasfastasprices20general. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.17
商品的使用价值价值和交换价值三者之间的关系是
Mostpeoplewouldbe1bythehighqualityofmedicine2tomostAmericans.Thereisalotofspecializationagreatdealof3totheindividuala4amountofadvancedtechnicalequipmentand5effortnottomakemistakesbecauseofthefinancialriskwhichdoctorsandhospitalsmust6inthecourtsifthey7thingsbadly. ButtheAmericansareinamess.Theproblemisthewayin8healthcareisorganizedand9.10topubicbeliefitisnotjustafreecompetitionsystem.Theprivatesystemhasbeenjoinedalargepublicsystembecauseprivatecarewassimplynot11thelessfortunateandtheelderly. Butevenwiththishugepublicpartofthesystem12thisyearwilleatup84.5billiondollars—morethan10percentoftheU.S.Budget—largenumberofAmericansareleft13.Theseincludeabouthalfthe11millionunemployedandthosewhofailtomeetthestrictlimits14incomefixedbyagovernmenttryingtomakesavingswhereitcan. Thebasicproblemhoweveristhatthereisnocentralcontrol15thehealthsystem.Thereisno16towhatdoctorsandhospitalschargefortheirservicesotherthanwhatthepublicisabletopay.Thenumberofdoctorshasshotupandpriceshaveclimbed.Whenfacedwithtoothacheasickchildoraheartattackalltheunfortunatepersonsconcernedcandois17up.Twothirdsofthepopulation18coveredbymedicalinsurance.Doctorschargeasmuchastheywant19thattheinsurancecompanywillpaythebill. TherisingcostofmedicineintheU.S.A.isamongthemostworryingproblemsfacingthecountry.In1981thecountry’shealthbillclimbed15.9percent--abouttwiceasfastasprices20general. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.15
AmericanandJapaneseresearchersaredevelopingasmartcarthatwillhelpdriversavoidaccidentsbypredictingwhentheyareabouttomakeadangerousmove. Thesmartcarofthefuturewillbeabletotellifdriversaregoingtoturnchangelanesspeedupslowdownorpassanothercar. Ifthedriver’sintendedactioncouldleadtoanaccidentthecarwillactivateawarningsystemoroverridethemove. 46"Byshiftingtheemphasisofcarsafetyawayfromdesignofthevehicleitselfandlookingmoretowardthedriver’sbehaviorthedevelopersbelievethattheycanstarttobuildcarsthatadapttosuitpeople’sneeds"NewScientistmagazinesaid.AlexPentlandoftheMassachusettsInstituteofTechnologycollaboratedontheprojectwithAndrewLiuwhoworksfortheJapanesecarmakerNissan. 47Testsoftheirsmartcarusingadrivingsimulatorhaveshownthatitis95percentaccurateinpredictingadriver’smove12secondsinadvance. 48Thesystemisbasedondrivingbehaviorwhichtheresearcherssaycanbedividedintochainsofsub-actionswhichincludepreparatorymoves. Itmonitorsthedriver’sbehaviorpatternstopredictthenextmove. "TomakeitspredictionsNissan’ssmartcarusesacomputerandsensorsonthesteeringwheelacceleratorandbraketomonitoraperson’sdrivingpatterns.49Abrieftrainingsessioninwhichthedriverisaskedtoperformcertainmaneuversallowsthesystemtocalculatetheprobabilityofparticularactionsoccurringintwo-secondtimesegments"themagazinesaid. Liuhasalsodoneworkontrackingeyemovementtopredictdrivingbehavior.50Hesaidthesmartcarcouldbeadaptedtomonitoreyemovementwhichcouldgiveevenearlierpredictionsofwhenadriverisabouttomakeawrongmove. Abrieftrainingsessioninwhichthedriverisaskedtoperformcertainmaneuversallowsthesystemtocalculatetheprobabilityofparticularactionsoccurringintwo-secondtimesegmentsthemagazinesaid.
ThehistoryofEnglishisconventionallyifperhapstooneatlydividedintothreeperiodsusuallycalledoldorAnglo-SaxonEnglishMiddleEnglishandModernEnglish.TheearliestperiodbeginswiththemigrationofcertainGermanictribesfromthecontinenttoBritaininthefifthcenturyA.Dthoughnorecordsoftheirlanguagesurvivefrombeforetheseventhcenturyanditcontinuesuntiltheendoftheseventhcenturyorabitlater.BythattimeLatinOldNorsethelanguageoftheVikinginvadersandespeciallytheAnglo-NormanFrenchofthedominantclassaftertheNormanConquestin1066hadbeguntohaveasubstantialimpactonthevocabularyandthewell-developedinflectionalsystemthattypifiesthegrammarofOldEnglishhadbeguntobreakdown. TheperiodofMiddleEnglishextendsroughlyformthetwelfthcenturythroughthefifteenth.TheinfluenceofFrenchandLatinoftenbywayofFrenchuponthevocabularycontinuedthroughouttheperiodthelossofsomeinflectionsandthereductionofothersacceleratedandmanychangestookplacewithinthegrammaticalsystemsofthelanguage.AtypicalprosepassagespeciallyonefromthelaterpartoftheperiodwillnothavesuchaforeignlooktousastheproseofOldEnglishbutitwillnotbemistakenforcontemporarywritingeither. TheperiodofModernEnglishextendsfromthesixteenthcenturytoourownday.TheearlypartofthisperiodsawthecompletionofarevolutioninvoweldistributionthathadbeguninlateMiddleEnglishandthateffectivelybroughtthelanguagetosomethingresemblingitspresentpattern.OtherimportantearlydevelopmentsincludethestabilizingeffectonspellingoftheprintingpressandthebeginningofthedirectinfluenceofLatinandtoalesserextentGreekonthevocabulary.LaterasEnglishcameintocontactwithotherculturesaroundtheworldanddistinctivedialectsofEnglishdevelopedinthemanyareaswhichBritainhadcolonizednumerousotherlanguagesmadesmallbutinterestingcontributionstoourword-stock. TheearliestwrittenrecordofEnglishavailabletousstarted
Whetherworkshouldbeplacedamongthecausesofhappinessoramongthecausesofunhappinessmayperhapsberegardedasadoubtfulquestion.Thereiscertainlymuchworkwhichisexceedinglywearyandanexcessofworkisalwaysverypainful.Ithinkhoweverthatprovidedworkisnotexcessiveinamounteventhedullestworkistomostpeoplelesspainfulthanidleness.Thereareinworkallgradesfrommerereliefoftediumuptotheprofoundestdelightsaccordingtothenatureoftheworkandtheabilitiesoftheworker.Mostoftheworkthatmostpeoplehavetodoisnotinitselfinterestingbutevensuchworkhascertaingreatadvantages.Tobeginwithitfillsagoodmanyhoursofthedaywithouttheneedofdecidingwhatoneshalldo.Mostpeoplewhentheyareleftfreetofilltheirowntimeaccordingtotheirownchoiceareatalosstothinkofanythingsufficientlypleasanttobeworthdoing.Andwhatevertheydecidetheyaretroubledbythefeelingthatsomethingelsewouldhavebeenpleasanter.Tobeabletofillleisureintelligentlyisthelastproductofcivilizationandatpresentveryfewpeoplehavereachedthislevel.Moreovertheexerciseofchoiceisinitselftiresome.Excepttopeoplewithunusualinitiativeitispositivelyagreeabletobetoldwhattodoateachhourofthedayprovidedtheordersarenottoounpleasant.Mostoftheidlerichsufferunspeakableboredomasthepriceoftheirfreedomfromtoil.AttimestheymayfindreliefbyhuntingbiggameinAfricaorbyflyingroundtheworldbutthenumberofsuchsensationsislimitedespeciallyafteryouthispastAccordinglythemoreintelligentrichmenworknearlyashardasiftheywerepoorwhilerichwomenforthemostpartkeepthemselvesbusywithinnumerabletriflesofthoseearth-shakingimportancetheyarefirmlypersuaded. Workthereforeisdesirablefirstandforemostasapreventiveofboredomfortheboredomthatamanfeelswhenheisdoingnecessarythoughuninterestingworkisasnothingincomparisonwiththeboredomthathefeelswhenhehasnothingtodowithhisdays.Withthisadvantageofworkanotherisassociatednamelythatitmakesholidaysmuchmoredeliciouswhentheycome.Providedamandoesnothavetoworksohardastoimpairhisvigorheislikelytofindfarmorezestinhisfreetimethananidlemancouldpossiblyfind. Thesecondadvantageofmostpaidworkandofsomeunpaidworkisthatitgiveschancesofsuccessandopportunitiesforambition.Inmostworksuccessismeasuredbyincomeandwhileourcapitalisticsocietycontinuesthisisinevitable.Itisonlywherethebestworkisconcernedthatthismeasureceasestobethenaturalonetoapply.Thedesirethanmenfeeltoincreasetheirincomeisquiteasmuchadesireforsuccessasfortheextracomfortsthatahigherincomecanacquire.Howeverdullworkmaybeitbecomesbearableifitisameansofbuildingupareputationwhetherintheworldatlargeoronlyinone’sowncircle. Accordingtothepassagesuccesscanmostlybemeasuredintermsof
Istronglyagreewiththecontentionthatabsenceofchoiceisararecircumstanceprimarilybecausethiscontentionaccordswithcommonsenseandoureverydayexperienceashumanbeings.Besidesthereverseclaim-thatwedonothavefreechoice-servestounderminethenotionsofmoralaccountabilityandhumanequalitywhicharecriticaltothesurvivalofanydemocraticsociety. 41.Theroleoffreewillofhumansinchoice Commonsensedictatesthathumanshavefreewillandthereforethetrueabsenceofchoiceisveryrare.Theonlypossibleexceptionswouldinvolveextremeandrarecircumstancessuchassolitaryimprisonmentoraseverementalorphysicaldeficiency—anyofwhichmightpotentiallystripapersonofhisorherabilitytomakeconsciouschoices.Yetevenunderthesecircumstancesapersonstillretainschoicesaboutvoluntarybodilyfunctionsandmovement.Thusthecompleteabsenceofchoicewouldseemtobepossibleonlyinacomatosestateorindeath. 42.Thenatureofabsenceofchoice Peopleoftenclaimthatlife’scircumstancesleavethemwith"nochoice."Onemightfeeltrappedinajoboramarriage.Underfinancialduressapersonmightclaimthatheorshehas"nochoice"buttodeclarebankruptcytakeademeaningjoborevenlieorstealtoobtainmoney.Thefundamentalproblemwiththesesortsofclaimsisthattheclaimantsareonlyconsideringthosechoicesthatarenotviableorattractive.Thatispeopleinsituationssuchasthesehaveaninfinitenumberofchoices;it’sjustthatmanyofthechoicesareunappealingevenself-defeating. 43.Choiceisbeyondourcontrol Besidesthecontentionthatwearealmostinvariablyfreetochooseisfarmoreappealingfromasociopoliticalstandpointthantheoppositeclaim.Acompletetackofchoiceimpliesthateveryperson’sfateisdeterminedandthatwealllackfreewill.Accordingtothephilosophicalschoolof"strictdeterminism"everyeventincludinghumanactionsandChoicesthatoccursisphysicallynecessarygiventhelawsofnatureandeventsthatprecededthateventorchoice.Inotherwordsthe"choices"thatseempartoftheessenceofourbeingareactuallybeyondourcontrol. 44.Thelogicalresultofstrictdeterminismandofthenew"scientificdeterminism" Howeverthelogicalresultofstrictdeterminismandofthenew"scientificdeterminism"isthatwearenotmorallyaccountableforouractionsandchoiceseventhosethatharmotherindividualsorsociety.Moreoverthroughouthistorymonarchsanddictatorshaveembraceddeterminismatleastostensiblytobolstertheirclaimthatcertainindividualsarepreordainedtoassumepositionsofauthorityortorisetothetoplevelsofthesocioeconomicinfrastructure.Finallythenotionofscientificdeterminismopensthedoorforgeneticengineeringwhichposesapotentialthreattoequalityinsocioeconomicopportunityandcouldleadtothedevelopmentofaso-called"masterrace."Admittedlythesedisturbingimplicationsneitherprovenordisprovethedeterminists’claims. 45.Insistenceoftreewill Iwouldconcedethatsciencemighteventuallydisprovetheverynotionoffreewill.HoweveruntilthattimeI’lltrustmystrongintuitionthatfreewillisanessentialpartofourbeingashumansandaccordinglythathumansareresponsiblefortheirownchoicesandactions. [A]Forexamplealmosteverypersonwhoclaimstobetrappedinajobissimplychoosingtoretainacertainmeasureoffinancialsecurity.Thechoicetoforegothissecurityisalwaysavailablealthoughitmightcarryunpleasantconsequences. [B]Ourcollectivelifeexperienceisthatwemakechoicesanddecisionseverydayonacontinualbasis. [C]HoweverthedilemmaseamstobeunavoidablewhichgivespeoplealotofPainfullyexperiencewithit. [D]Insumdespitethefactthatweallexperienceoccasionalfeelingsofbeingtrappedandhavingnochoicethestatementisfundamentallycorrect. [E]Recentadvancesinmolecularbiologyandgeneticslendsomecredencetothedeterminists’positionthatasphysicalbeingsouractionsaredeterminedbyphysicalforcesbeyondourcontrol.Newresearchsuggeststhatthesephysicalforcesincludeourownindividualgeneticmakeup. [F]Assumingthatneitherfreewillnordeterminismhasbeenproventobethecorrectpositiontheformeristobepreferredbyanyhumanistandinanydemocraticsociety. 43
随着作为商品交换媒介的价值形式的发展出现了一般价值形式一般价值形式的特点有
在人类历史上最早只知道石油可用来作燃料以后随着化学工业的发展又发现了石油可以用来进一步提炼成为许多化工产品的这说明
Mostpeoplewouldbe1bythehighqualityofmedicine2tomostAmericans.Thereisalotofspecializationagreatdealof3totheindividuala4amountofadvancedtechnicalequipmentand5effortnottomakemistakesbecauseofthefinancialriskwhichdoctorsandhospitalsmust6inthecourtsifthey7thingsbadly. ButtheAmericansareinamess.Theproblemisthewayin8healthcareisorganizedand9.10topubicbeliefitisnotjustafreecompetitionsystem.Theprivatesystemhasbeenjoinedalargepublicsystembecauseprivatecarewassimplynot11thelessfortunateandtheelderly. Butevenwiththishugepublicpartofthesystem12thisyearwilleatup84.5billiondollars—morethan10percentoftheU.S.Budget—largenumberofAmericansareleft13.Theseincludeabouthalfthe11millionunemployedandthosewhofailtomeetthestrictlimits14incomefixedbyagovernmenttryingtomakesavingswhereitcan. Thebasicproblemhoweveristhatthereisnocentralcontrol15thehealthsystem.Thereisno16towhatdoctorsandhospitalschargefortheirservicesotherthanwhatthepublicisabletopay.Thenumberofdoctorshasshotupandpriceshaveclimbed.Whenfacedwithtoothacheasickchildoraheartattackalltheunfortunatepersonsconcernedcandois17up.Twothirdsofthepopulation18coveredbymedicalinsurance.Doctorschargeasmuchastheywant19thattheinsurancecompanywillpaythebill. TherisingcostofmedicineintheU.S.A.isamongthemostworryingproblemsfacingthecountry.In1981thecountry’shealthbillclimbed15.9percent--abouttwiceasfastasprices20general. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.19
Askanyemployeeatanlevelinanycompanywhattheydislikeabouttheirjobandsomewhereonthelistyouwillfindacomplaintaboutthesystemofperformanceappraisals.Itdoesseemstrangethatanideawhichwassupposedtobenefitbothindividualsandthecompanyshouldbesouniversallydislikedbutthestaffappraisalisnowoneofthebiggestcausesofdissatisfactionatwork.IntheUnitedStatestherehaveevenbeencasesofunhappyworkerstakingtheiremployerstocourtoverappraisalinterviews.Itisinacompany’sinteresttocombatthissituationbutbeforereversingtheappraisal’snegativeassociationsanorganizationneedstopinpointtheunderlyingreasonswhichhavecontributedtothem. Problemswithappraisalscanfallintotwomainareas--thosearisingfromtheschemeitselfandthosearisingfromtheimplementationandunderstandingofthatscheme.Naturallyitiseasiertotacklethoseintheformercategory;indeedsomecompanieshavedevelopedschemesfollowinglegalguidelines.Theseguidelinessuggestthatasuccessfulschemeshouldhaveaclearappealprocessthatanynegativefeedbackshouldbeaccompaniedby"evidence"suchasdatestimesandoutcomesandthatmostimportantlyratingsshouldreflectspecificmeasurableelementsofthejobrequirements. Itisnotalwaysnecessarytoresorttolegaladvicehowever.Somechangestocurrentschemesaresimplyamatteroflogic.Forinstanceifemployeesareconstantlyencouragedtoworkinteamsandtoassumejointresponsibilityfortheirsuccessesandfailuresitmakeslittlesensefortheappraisalstofocusonindividualsasthismayleadtoresentmentsandcreatedivisionswithinthegroup.Itispossibleandinsomecasesmoresuitabletoarrangeappraisalswhereperformanceisratedforthegroup. Staffalsoneedtobeeducatedaboutthebestwaytoapproachappraisals.Managersoftenfindthattheyareuncomfortablebeingaskedtotakeonamoresupportiverolethantheyareusedtowithouthavinghadanytraining.Thosebeingappraisedmayseeitasachancetoairtheirgrievancesandhighlightthecompany’sfailingsratherthanconsidertheirownrole.Bothpartiesviewtheprocessasanecessaryeviltobegonethroughonceortwiceayearandthenforgottenabout.Theimportancegiventotheappraisalstemsfromthefactthatdespiteallthetalkoftheinterviewbeingachanceformanagementandemployeestocometogetherandexchangeideassetjointtargetsandimprovethewaydecisionsarereachedtherealityisthattheyareoftennothingmorethanthepretextonwhichpayrisesaregivenornotgiven.Payisofcourseasubjectthatalwaysleadstoproblems. GiventheproblemsassociatedwithstaffappraisalswhyisitthatwithnolegalrequirementcompaniescontinuetorunthemTheanswerissimpleitisimpossibletomanagesomethingyouknownothingabout.AsanyHumanResourcesmanagercantellyouthebestwaytolearnaboutsomeoneistotalktothem.Effectivepeoplemanagementreliesonknowledgeandappraisalsarestillthebestwaytobuildupthatbankofknowledge. Howarepersonalappraisalsimportantforcompanies
Askanyemployeeatanlevelinanycompanywhattheydislikeabouttheirjobandsomewhereonthelistyouwillfindacomplaintaboutthesystemofperformanceappraisals.Itdoesseemstrangethatanideawhichwassupposedtobenefitbothindividualsandthecompanyshouldbesouniversallydislikedbutthestaffappraisalisnowoneofthebiggestcausesofdissatisfactionatwork.IntheUnitedStatestherehaveevenbeencasesofunhappyworkerstakingtheiremployerstocourtoverappraisalinterviews.Itisinacompany’sinteresttocombatthissituationbutbeforereversingtheappraisal’snegativeassociationsanorganizationneedstopinpointtheunderlyingreasonswhichhavecontributedtothem. Problemswithappraisalscanfallintotwomainareas--thosearisingfromtheschemeitselfandthosearisingfromtheimplementationandunderstandingofthatscheme.Naturallyitiseasiertotacklethoseintheformercategory;indeedsomecompanieshavedevelopedschemesfollowinglegalguidelines.Theseguidelinessuggestthatasuccessfulschemeshouldhaveaclearappealprocessthatanynegativefeedbackshouldbeaccompaniedby"evidence"suchasdatestimesandoutcomesandthatmostimportantlyratingsshouldreflectspecificmeasurableelementsofthejobrequirements. Itisnotalwaysnecessarytoresorttolegaladvicehowever.Somechangestocurrentschemesaresimplyamatteroflogic.Forinstanceifemployeesareconstantlyencouragedtoworkinteamsandtoassumejointresponsibilityfortheirsuccessesandfailuresitmakeslittlesensefortheappraisalstofocusonindividualsasthismayleadtoresentmentsandcreatedivisionswithinthegroup.Itispossibleandinsomecasesmoresuitabletoarrangeappraisalswhereperformanceisratedforthegroup. Staffalsoneedtobeeducatedaboutthebestwaytoapproachappraisals.Managersoftenfindthattheyareuncomfortablebeingaskedtotakeonamoresupportiverolethantheyareusedtowithouthavinghadanytraining.Thosebeingappraisedmayseeitasachancetoairtheirgrievancesandhighlightthecompany’sfailingsratherthanconsidertheirownrole.Bothpartiesviewtheprocessasanecessaryeviltobegonethroughonceortwiceayearandthenforgottenabout.Theimportancegiventotheappraisalstemsfromthefactthatdespiteallthetalkoftheinterviewbeingachanceformanagementandemployeestocometogetherandexchangeideassetjointtargetsandimprovethewaydecisionsarereachedtherealityisthattheyareoftennothingmorethanthepretextonwhichpayrisesaregivenornotgiven.Payisofcourseasubjectthatalwaysleadstoproblems. GiventheproblemsassociatedwithstaffappraisalswhyisitthatwithnolegalrequirementcompaniescontinuetorunthemTheanswerissimpleitisimpossibletomanagesomethingyouknownothingabout.AsanyHumanResourcesmanagercantellyouthebestwaytolearnaboutsomeoneistotalktothem.Effectivepeoplemanagementreliesonknowledgeandappraisalsarestillthebestwaytobuildupthatbankofknowledge. Whyaretheresomanyproblemswithappraisals
Whetherworkshouldbeplacedamongthecausesofhappinessoramongthecausesofunhappinessmayperhapsberegardedasadoubtfulquestion.Thereiscertainlymuchworkwhichisexceedinglywearyandanexcessofworkisalwaysverypainful.Ithinkhoweverthatprovidedworkisnotexcessiveinamounteventhedullestworkistomostpeoplelesspainfulthanidleness.Thereareinworkallgradesfrommerereliefoftediumuptotheprofoundestdelightsaccordingtothenatureoftheworkandtheabilitiesoftheworker.Mostoftheworkthatmostpeoplehavetodoisnotinitselfinterestingbutevensuchworkhascertaingreatadvantages.Tobeginwithitfillsagoodmanyhoursofthedaywithouttheneedofdecidingwhatoneshalldo.Mostpeoplewhentheyareleftfreetofilltheirowntimeaccordingtotheirownchoiceareatalosstothinkofanythingsufficientlypleasanttobeworthdoing.Andwhatevertheydecidetheyaretroubledbythefeelingthatsomethingelsewouldhavebeenpleasanter.Tobeabletofillleisureintelligentlyisthelastproductofcivilizationandatpresentveryfewpeoplehavereachedthislevel.Moreovertheexerciseofchoiceisinitselftiresome.Excepttopeoplewithunusualinitiativeitispositivelyagreeabletobetoldwhattodoateachhourofthedayprovidedtheordersarenottoounpleasant.Mostoftheidlerichsufferunspeakableboredomasthepriceoftheirfreedomfromtoil.AttimestheymayfindreliefbyhuntingbiggameinAfricaorbyflyingroundtheworldbutthenumberofsuchsensationsislimitedespeciallyafteryouthispastAccordinglythemoreintelligentrichmenworknearlyashardasiftheywerepoorwhilerichwomenforthemostpartkeepthemselvesbusywithinnumerabletriflesofthoseearth-shakingimportancetheyarefirmlypersuaded. Workthereforeisdesirablefirstandforemostasapreventiveofboredomfortheboredomthatamanfeelswhenheisdoingnecessarythoughuninterestingworkisasnothingincomparisonwiththeboredomthathefeelswhenhehasnothingtodowithhisdays.Withthisadvantageofworkanotherisassociatednamelythatitmakesholidaysmuchmoredeliciouswhentheycome.Providedamandoesnothavetoworksohardastoimpairhisvigorheislikelytofindfarmorezestinhisfreetimethananidlemancouldpossiblyfind. Thesecondadvantageofmostpaidworkandofsomeunpaidworkisthatitgiveschancesofsuccessandopportunitiesforambition.Inmostworksuccessismeasuredbyincomeandwhileourcapitalisticsocietycontinuesthisisinevitable.Itisonlywherethebestworkisconcernedthatthismeasureceasestobethenaturalonetoapply.Thedesirethanmenfeeltoincreasetheirincomeisquiteasmuchadesireforsuccessasfortheextracomfortsthatahigherincomecanacquire.Howeverdullworkmaybeitbecomesbearableifitisameansofbuildingupareputationwhetherintheworldatlargeoronlyinone’sowncircle. Intheauthor’sopinionwhatisthelastproductofcivilization
ThehistoryofEnglishisconventionallyifperhapstooneatlydividedintothreeperiodsusuallycalledoldorAnglo-SaxonEnglishMiddleEnglishandModernEnglish.TheearliestperiodbeginswiththemigrationofcertainGermanictribesfromthecontinenttoBritaininthefifthcenturyA.Dthoughnorecordsoftheirlanguagesurvivefrombeforetheseventhcenturyanditcontinuesuntiltheendoftheseventhcenturyorabitlater.BythattimeLatinOldNorsethelanguageoftheVikinginvadersandespeciallytheAnglo-NormanFrenchofthedominantclassaftertheNormanConquestin1066hadbeguntohaveasubstantialimpactonthevocabularyandthewell-developedinflectionalsystemthattypifiesthegrammarofOldEnglishhadbeguntobreakdown. TheperiodofMiddleEnglishextendsroughlyformthetwelfthcenturythroughthefifteenth.TheinfluenceofFrenchandLatinoftenbywayofFrenchuponthevocabularycontinuedthroughouttheperiodthelossofsomeinflectionsandthereductionofothersacceleratedandmanychangestookplacewithinthegrammaticalsystemsofthelanguage.AtypicalprosepassagespeciallyonefromthelaterpartoftheperiodwillnothavesuchaforeignlooktousastheproseofOldEnglishbutitwillnotbemistakenforcontemporarywritingeither. TheperiodofModernEnglishextendsfromthesixteenthcenturytoourownday.TheearlypartofthisperiodsawthecompletionofarevolutioninvoweldistributionthathadbeguninlateMiddleEnglishandthateffectivelybroughtthelanguagetosomethingresemblingitspresentpattern.OtherimportantearlydevelopmentsincludethestabilizingeffectonspellingoftheprintingpressandthebeginningofthedirectinfluenceofLatinandtoalesserextentGreekonthevocabulary.LaterasEnglishcameintocontactwithotherculturesaroundtheworldanddistinctivedialectsofEnglishdevelopedinthemanyareaswhichBritainhadcolonizednumerousotherlanguagesmadesmallbutinterestingcontributionstoourword-stock. Whatcanbeinferredfromthepassage
Istronglyagreewiththecontentionthatabsenceofchoiceisararecircumstanceprimarilybecausethiscontentionaccordswithcommonsenseandoureverydayexperienceashumanbeings.Besidesthereverseclaim-thatwedonothavefreechoice-servestounderminethenotionsofmoralaccountabilityandhumanequalitywhicharecriticaltothesurvivalofanydemocraticsociety. 41.Theroleoffreewillofhumansinchoice Commonsensedictatesthathumanshavefreewillandthereforethetrueabsenceofchoiceisveryrare.Theonlypossibleexceptionswouldinvolveextremeandrarecircumstancessuchassolitaryimprisonmentoraseverementalorphysicaldeficiency—anyofwhichmightpotentiallystripapersonofhisorherabilitytomakeconsciouschoices.Yetevenunderthesecircumstancesapersonstillretainschoicesaboutvoluntarybodilyfunctionsandmovement.Thusthecompleteabsenceofchoicewouldseemtobepossibleonlyinacomatosestateorindeath. 42.Thenatureofabsenceofchoice Peopleoftenclaimthatlife’scircumstancesleavethemwith"nochoice."Onemightfeeltrappedinajoboramarriage.Underfinancialduressapersonmightclaimthatheorshehas"nochoice"buttodeclarebankruptcytakeademeaningjoborevenlieorstealtoobtainmoney.Thefundamentalproblemwiththesesortsofclaimsisthattheclaimantsareonlyconsideringthosechoicesthatarenotviableorattractive.Thatispeopleinsituationssuchasthesehaveaninfinitenumberofchoices;it’sjustthatmanyofthechoicesareunappealingevenself-defeating. 43.Choiceisbeyondourcontrol Besidesthecontentionthatwearealmostinvariablyfreetochooseisfarmoreappealingfromasociopoliticalstandpointthantheoppositeclaim.Acompletetackofchoiceimpliesthateveryperson’sfateisdeterminedandthatwealllackfreewill.Accordingtothephilosophicalschoolof"strictdeterminism"everyeventincludinghumanactionsandChoicesthatoccursisphysicallynecessarygiventhelawsofnatureandeventsthatprecededthateventorchoice.Inotherwordsthe"choices"thatseempartoftheessenceofourbeingareactuallybeyondourcontrol. 44.Thelogicalresultofstrictdeterminismandofthenew"scientificdeterminism" Howeverthelogicalresultofstrictdeterminismandofthenew"scientificdeterminism"isthatwearenotmorallyaccountableforouractionsandchoiceseventhosethatharmotherindividualsorsociety.Moreoverthroughouthistorymonarchsanddictatorshaveembraceddeterminismatleastostensiblytobolstertheirclaimthatcertainindividualsarepreordainedtoassumepositionsofauthorityortorisetothetoplevelsofthesocioeconomicinfrastructure.Finallythenotionofscientificdeterminismopensthedoorforgeneticengineeringwhichposesapotentialthreattoequalityinsocioeconomicopportunityandcouldleadtothedevelopmentofaso-called"masterrace."Admittedlythesedisturbingimplicationsneitherprovenordisprovethedeterminists’claims. 45.Insistenceoftreewill Iwouldconcedethatsciencemighteventuallydisprovetheverynotionoffreewill.HoweveruntilthattimeI’lltrustmystrongintuitionthatfreewillisanessentialpartofourbeingashumansandaccordinglythathumansareresponsiblefortheirownchoicesandactions. [A]Forexamplealmosteverypersonwhoclaimstobetrappedinajobissimplychoosingtoretainacertainmeasureoffinancialsecurity.Thechoicetoforegothissecurityisalwaysavailablealthoughitmightcarryunpleasantconsequences. [B]Ourcollectivelifeexperienceisthatwemakechoicesanddecisionseverydayonacontinualbasis. [C]HoweverthedilemmaseamstobeunavoidablewhichgivespeoplealotofPainfullyexperiencewithit. [D]Insumdespitethefactthatweallexperienceoccasionalfeelingsofbeingtrappedandhavingnochoicethestatementisfundamentallycorrect. [E]Recentadvancesinmolecularbiologyandgeneticslendsomecredencetothedeterminists’positionthatasphysicalbeingsouractionsaredeterminedbyphysicalforcesbeyondourcontrol.Newresearchsuggeststhatthesephysicalforcesincludeourownindividualgeneticmakeup. [F]Assumingthatneitherfreewillnordeterminismhasbeenproventobethecorrectpositiontheformeristobepreferredbyanyhumanistandinanydemocraticsociety. 41
Themid-sixtiessawthestartofaprojectthatalongwithothersimilarresearchwastoteachusagreatdealaboutthechimpanzeemind.ThiswasProjectWashoeconceivedbyTrixieandAllenGardner.TheypurchasedaninfantchimpanzeeandbegantoteachherthesignsofASLtheAmericanSignLanguageusedbythedeaf.TwentyyearsearlieranotherhusbandandwifeteamRichardandCathyHayeshadtriedwithanalmosttotallackofsuccesstoteachayoungchimpVikkitotalk.TheHayes*sundertakingtaughtusalotaboutthechimpanzeemindbutVikkialthoughshedidwellinIQtestsandwasclearlyanintelligentyoungstercouldnotlearnhumanspeech.TheGardnershoweverachievedspectacularsuccesswiththeirpupilWashoe.Notonlydidshelearnsignseasilybutshequicklybegantostringthemtogetherinmeaningfulways.Itwasclearthateachsignevokedinhermindamentalimageoftheobjectitrepresented.Ifforexampleshewasaskedinsignlanguagetofetchanappleshewouldgoandlocateanapplethatwasoutofsightinanotherroom. OtherchimpsenteredtheprojectsomestartingtheirlivesindeafsigningfamiliesbeforejoiningWashoe.AndfinallyWashoeadoptedaninfantLoulis.Hecamefromalabwherenothoughtofteachingsignshadeverpenetrated.WhenhewaswithWashoehewasgivennolessonsinlanguageacquisition—notbyhumansanyway.Yetbythetimehewaseightyearsoldhehadmadefifty-eightsignsintheircorrectcontexts.HowdidhelearnthemMostlyitseemsbyimitatingthebehaviorofWashoeandtheotherthreesigningchimpsDarMojaandTam.SometimesthoughhereceivedtuitionfromWashoeherself.Onedayforexampleshebegantoswaggeraboutbipedallyhairbristlingsigningfood!food!food!ingreatexcitement.Shehadseenahumanapproachingwithabarofchocolate.Loulisonlyeighteenmonthsoldwatchedpassively.SuddenlyWashoestoppedherswaggeringwentovertohimtookhishandandmouldedthesignforfoodfingerspointingtowardsmouth.Anothertimeinasimilarcontextshemadethesignforchewinggum—butwithherhandonhisbody.OnathirdoccasionWashoepickedupasmallchairtookitovertoLoulissetitdowninfrontofhimandverydistinctlymadethechairsignthreetimeswatchinghimcloselyasshedidso.ThetwofoodsignsbecameincorporatedintoLoulis’svocabularybutthesignforchairdidnot.Obviouslytheprioritiesofayoungchimparesimilartothoseofahumanchild! Chimpanzeeswhohavebeentaughtalanguagecancombinesignscreativelyinordertodescribeobjectsforwhichtheyhavenosymbol.Washoeforexamplepuzzledhercaretakersbyaskingrepeatedlyforarockberry.Eventuallyittranspiredthatshewasreferringtobrazilnutswhichshehadencounteredforthefirsttimeawhilebefore.Anotherlanguage-trainedchimpdescribedacucumberasagreenbanana.Theycaneveninventsigns.Lucyasshegotolderhadtobeputonaleashforheroutings.Onedayeagertosetoffbuthavingnosignforleashshesignaledherwishesbyholdingacrookedindexfingertotheringonhercollar.Thissignbecamepartofhervocabulary. ThemainideaofParagraph2canbesummarizedas.
马克思说一切商品对它们的所有者是非使用价值对它们的非所有者是使用价值这句话表明
经济制度反映
价值规律是商品经济的基本规律它的作用是通过
Istronglyagreewiththecontentionthatabsenceofchoiceisararecircumstanceprimarilybecausethiscontentionaccordswithcommonsenseandoureverydayexperienceashumanbeings.Besidesthereverseclaim-thatwedonothavefreechoice-servestounderminethenotionsofmoralaccountabilityandhumanequalitywhicharecriticaltothesurvivalofanydemocraticsociety. 41.Theroleoffreewillofhumansinchoice Commonsensedictatesthathumanshavefreewillandthereforethetrueabsenceofchoiceisveryrare.Theonlypossibleexceptionswouldinvolveextremeandrarecircumstancessuchassolitaryimprisonmentoraseverementalorphysicaldeficiency—anyofwhichmightpotentiallystripapersonofhisorherabilitytomakeconsciouschoices.Yetevenunderthesecircumstancesapersonstillretainschoicesaboutvoluntarybodilyfunctionsandmovement.Thusthecompleteabsenceofchoicewouldseemtobepossibleonlyinacomatosestateorindeath. 42.Thenatureofabsenceofchoice Peopleoftenclaimthatlife’scircumstancesleavethemwith"nochoice."Onemightfeeltrappedinajoboramarriage.Underfinancialduressapersonmightclaimthatheorshehas"nochoice"buttodeclarebankruptcytakeademeaningjoborevenlieorstealtoobtainmoney.Thefundamentalproblemwiththesesortsofclaimsisthattheclaimantsareonlyconsideringthosechoicesthatarenotviableorattractive.Thatispeopleinsituationssuchasthesehaveaninfinitenumberofchoices;it’sjustthatmanyofthechoicesareunappealingevenself-defeating. 43.Choiceisbeyondourcontrol Besidesthecontentionthatwearealmostinvariablyfreetochooseisfarmoreappealingfromasociopoliticalstandpointthantheoppositeclaim.Acompletetackofchoiceimpliesthateveryperson’sfateisdeterminedandthatwealllackfreewill.Accordingtothephilosophicalschoolof"strictdeterminism"everyeventincludinghumanactionsandChoicesthatoccursisphysicallynecessarygiventhelawsofnatureandeventsthatprecededthateventorchoice.Inotherwordsthe"choices"thatseempartoftheessenceofourbeingareactuallybeyondourcontrol. 44.Thelogicalresultofstrictdeterminismandofthenew"scientificdeterminism" Howeverthelogicalresultofstrictdeterminismandofthenew"scientificdeterminism"isthatwearenotmorallyaccountableforouractionsandchoiceseventhosethatharmotherindividualsorsociety.Moreoverthroughouthistorymonarchsanddictatorshaveembraceddeterminismatleastostensiblytobolstertheirclaimthatcertainindividualsarepreordainedtoassumepositionsofauthorityortorisetothetoplevelsofthesocioeconomicinfrastructure.Finallythenotionofscientificdeterminismopensthedoorforgeneticengineeringwhichposesapotentialthreattoequalityinsocioeconomicopportunityandcouldleadtothedevelopmentofaso-called"masterrace."Admittedlythesedisturbingimplicationsneitherprovenordisprovethedeterminists’claims. 45.Insistenceoftreewill Iwouldconcedethatsciencemighteventuallydisprovetheverynotionoffreewill.HoweveruntilthattimeI’lltrustmystrongintuitionthatfreewillisanessentialpartofourbeingashumansandaccordinglythathumansareresponsiblefortheirownchoicesandactions. [A]Forexamplealmosteverypersonwhoclaimstobetrappedinajobissimplychoosingtoretainacertainmeasureoffinancialsecurity.Thechoicetoforegothissecurityisalwaysavailablealthoughitmightcarryunpleasantconsequences. [B]Ourcollectivelifeexperienceisthatwemakechoicesanddecisionseverydayonacontinualbasis. [C]HoweverthedilemmaseamstobeunavoidablewhichgivespeoplealotofPainfullyexperiencewithit. [D]Insumdespitethefactthatweallexperienceoccasionalfeelingsofbeingtrappedandhavingnochoicethestatementisfundamentallycorrect. [E]Recentadvancesinmolecularbiologyandgeneticslendsomecredencetothedeterminists’positionthatasphysicalbeingsouractionsaredeterminedbyphysicalforcesbeyondourcontrol.Newresearchsuggeststhatthesephysicalforcesincludeourownindividualgeneticmakeup. [F]Assumingthatneitherfreewillnordeterminismhasbeenproventobethecorrectpositiontheformeristobepreferredbyanyhumanistandinanydemocraticsociety. 45
Themid-sixtiessawthestartofaprojectthatalongwithothersimilarresearchwastoteachusagreatdealaboutthechimpanzeemind.ThiswasProjectWashoeconceivedbyTrixieandAllenGardner.TheypurchasedaninfantchimpanzeeandbegantoteachherthesignsofASLtheAmericanSignLanguageusedbythedeaf.TwentyyearsearlieranotherhusbandandwifeteamRichardandCathyHayeshadtriedwithanalmosttotallackofsuccesstoteachayoungchimpVikkitotalk.TheHayes*sundertakingtaughtusalotaboutthechimpanzeemindbutVikkialthoughshedidwellinIQtestsandwasclearlyanintelligentyoungstercouldnotlearnhumanspeech.TheGardnershoweverachievedspectacularsuccesswiththeirpupilWashoe.Notonlydidshelearnsignseasilybutshequicklybegantostringthemtogetherinmeaningfulways.Itwasclearthateachsignevokedinhermindamentalimageoftheobjectitrepresented.Ifforexampleshewasaskedinsignlanguagetofetchanappleshewouldgoandlocateanapplethatwasoutofsightinanotherroom. OtherchimpsenteredtheprojectsomestartingtheirlivesindeafsigningfamiliesbeforejoiningWashoe.AndfinallyWashoeadoptedaninfantLoulis.Hecamefromalabwherenothoughtofteachingsignshadeverpenetrated.WhenhewaswithWashoehewasgivennolessonsinlanguageacquisition—notbyhumansanyway.Yetbythetimehewaseightyearsoldhehadmadefifty-eightsignsintheircorrectcontexts.HowdidhelearnthemMostlyitseemsbyimitatingthebehaviorofWashoeandtheotherthreesigningchimpsDarMojaandTam.SometimesthoughhereceivedtuitionfromWashoeherself.Onedayforexampleshebegantoswaggeraboutbipedallyhairbristlingsigningfood!food!food!ingreatexcitement.Shehadseenahumanapproachingwithabarofchocolate.Loulisonlyeighteenmonthsoldwatchedpassively.SuddenlyWashoestoppedherswaggeringwentovertohimtookhishandandmouldedthesignforfoodfingerspointingtowardsmouth.Anothertimeinasimilarcontextshemadethesignforchewinggum—butwithherhandonhisbody.OnathirdoccasionWashoepickedupasmallchairtookitovertoLoulissetitdowninfrontofhimandverydistinctlymadethechairsignthreetimeswatchinghimcloselyasshedidso.ThetwofoodsignsbecameincorporatedintoLoulis’svocabularybutthesignforchairdidnot.Obviouslytheprioritiesofayoungchimparesimilartothoseofahumanchild! Chimpanzeeswhohavebeentaughtalanguagecancombinesignscreativelyinordertodescribeobjectsforwhichtheyhavenosymbol.Washoeforexamplepuzzledhercaretakersbyaskingrepeatedlyforarockberry.Eventuallyittranspiredthatshewasreferringtobrazilnutswhichshehadencounteredforthefirsttimeawhilebefore.Anotherlanguage-trainedchimpdescribedacucumberasagreenbanana.Theycaneveninventsigns.Lucyasshegotolderhadtobeputonaleashforheroutings.Onedayeagertosetoffbuthavingnosignforleashshesignaledherwishesbyholdingacrookedindexfingertotheringonhercollar.Thissignbecamepartofhervocabulary. Fromwhatissaidinthepassagewecanconcludethat
Directions:Writeareplytothisbusinessletter. OfficeSuppliesCompanyABCEngineeringCompany 222NathanRoad77AnNeiJieWuhan KowloonHongKong17thJanuary DearSir/Madam IsawyouradvertisementinChinaDailyforyournewfaxmachines.Wouldyoupleasesendmemoreinformationandapricelist.Iwouldalsoappreciateavisittooneoffromsalespeopleinthenearfuturetodiscussourrequirementsforbusinessmachines.Thankyou. Yourssincerely LiWei Youshouldwriteabout100wordsonANSWERSHEET2.Donotsignyourownnameattheendoftheletter.Use"LiMing"instead.
假定劳动投入不变劳动生产率提高对价值创造和财富生产的影响是
AmericanandJapaneseresearchersaredevelopingasmartcarthatwillhelpdriversavoidaccidentsbypredictingwhentheyareabouttomakeadangerousmove. Thesmartcarofthefuturewillbeabletotellifdriversaregoingtoturnchangelanesspeedupslowdownorpassanothercar. Ifthedriver’sintendedactioncouldleadtoanaccidentthecarwillactivateawarningsystemoroverridethemove. 46"Byshiftingtheemphasisofcarsafetyawayfromdesignofthevehicleitselfandlookingmoretowardthedriver’sbehaviorthedevelopersbelievethattheycanstarttobuildcarsthatadapttosuitpeople’sneeds"NewScientistmagazinesaid.AlexPentlandoftheMassachusettsInstituteofTechnologycollaboratedontheprojectwithAndrewLiuwhoworksfortheJapanesecarmakerNissan. 47Testsoftheirsmartcarusingadrivingsimulatorhaveshownthatitis95percentaccurateinpredictingadriver’smove12secondsinadvance. 48Thesystemisbasedondrivingbehaviorwhichtheresearcherssaycanbedividedintochainsofsub-actionswhichincludepreparatorymoves. Itmonitorsthedriver’sbehaviorpatternstopredictthenextmove. "TomakeitspredictionsNissan’ssmartcarusesacomputerandsensorsonthesteeringwheelacceleratorandbraketomonitoraperson’sdrivingpatterns.49Abrieftrainingsessioninwhichthedriverisaskedtoperformcertainmaneuversallowsthesystemtocalculatetheprobabilityofparticularactionsoccurringintwo-secondtimesegments"themagazinesaid. Liuhasalsodoneworkontrackingeyemovementtopredictdrivingbehavior.50Hesaidthesmartcarcouldbeadaptedtomonitoreyemovementwhichcouldgiveevenearlierpredictionsofwhenadriverisabouttomakeawrongmove. Testsoftheirsmartcarusingadrivingsimulatorhaveshownthatitis95percentaccurateinpredictingadriver’smove12secondsinadvance.
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