1、AsGilbertWhite，Darwin，andothersobservedlongago，allspeciesappeartohavetheinnatecapacitytoincreasetheirnumbersfromgenerationtogeneration.Thetaskforecologistsistountangletheenvironmentaandbiologicalfactorsthatholdthisintrinsiccapacityforpopulationgrowthincheckoverthelongrun.Thegreatvarietyofdynamicbehaviorsexhibitedbydifferentpopulationmakesthistaskmoredifficult：sompopulationsremainroughlyconstantfromyeartoyear;othersexhibitregularcyclesofabundanceandscarcity;stillothersvarywildly，withoutbreaksandcrashesthatareinsomecasesplainlycorrelatedwiththeweather，andinothercasesnot.Toimposesomeorderonthiskaleidoscopeofpatterns，oneschoolofthoughtproposesdividingpopulationsintotwogroups.Theseecologistspositthattherelativelysteadypopulationshavedensity-dependentgrowthparameters;thatis，ratesofbirth，death，andmigrationwhichdependstronglyonpopulationdensity.Thehighlyvaryingpopulationshavedensity-independentgrowthparameters，withvitalratesbuffetedbyenvironmentalevents;theseratesfluctuateinawaythatiswhollyindependentofpopulationdensity.Thisdichotomyhasitsuses，butitcancauseproblemsiftakentooliterally.Foronething，nopopulationcanbedrivenentirelybydensity-independentfactorsallthetime.Nomatterhowseverelyorunpredictablybirth，death，andmigrationratesmaybefluctuatingaroundtheirlong-termaverages，iftherewerenodensity-dependenteffects，thepopulationwould，inthelongrun，eitherincreaseordecreasewithoutbound(barringamiraclebywhichgainsandlossescanceledexactly)。Putanotherway，itmaybethatonaverage99percentofalldeathsinapopulationarisefromdensity-independentcauses，andonlyonepercentfromfactorsvaryingwithdensity.Thefactorsmakinguptheonepercentmayseemunimportant，andtheircausemaybecorrespondinglyhardtodetermine.Yet，whetherrecognizedornot，theywillusuallydeterminethelong-termaveragepopulationdensity.Inordertounderstandthenatureoftheecologist’sinvestigation，wemaythinkofthedensity-dependenteffectsongrowthparametersasthesignalecologistsaretryingtoisolateandinterpret，onethattendstomakethepopulationincreasefromrelativelylowvaluesordecreasefromrelativelyhighones，whilethedensity-independenteffectsacttoproducenoiseinthepopulationdynamics.Forpopulationsthatremainrelativelyconstant，orthatoscillatearoundrepeatedcycles，thesignalcanbefairlyeasilycharacterizedanditseffectsdescribed，eventhoughthecausativebiologicalmechanismmayremainunknown.Forirregularlyfluctuatingpopulations，wearelikelytohavetoofewobservationstohaveanyhopeofextractingthesignalfromtheoverwhelmingnoise.Butitnowseemsclearthatallpopulationsareregulatedbyamixtureofdensity-dependentanddensity-independenteffectsinvaryingproportions. 1.Theauthorofthetextisprimarilyconcernedwith [A]Discussingtwocategoriesoffactorsthatcontrolpopulationgrowthandassessingtheirrelativeimportance. [B]Describinghowgrowthratesinnaturalpopulationsfluctuateovertimeandexplainingwhythesechangesoccur. [C]Proposingahypothesisconcerningpopulationsizeandsuggestingwaystotestit. [D]Posingafundamentalquestionaboutenvironmentalfactorsinpopulationgrowthandpresentingsomecurrentlyacceptedanswer. 2.Itcanbeinferredfromthetextthattheauthorconsidersthedichotomydiscussedtobe [A]Applicableonlytoerraticallyfluctuatingpopulations. [B]instrumental，butonlyifitslimitationsarerecognized. [C]Dangerouslymisleadinginmostcircumstances. [D]Acompleteandsufficientwaytoaccountforobservedphenomena. 3.tothetext，allofthefollowingbehaviorshavebeenexhibitedbydifferentpopulationsEXCEPT [A]Roughlyconstantpopulationlevelsfromyeartoyear. [B]Regularcyclesofincreasesanddecreasesinnumbers. [C]Erraticincreasesinnumberscorrelatedwiththeweather. [D]Uncheckedincreasesinnumbersovermanygenerations. 4.Thediscussionconcerningpopulationinthethirdparagraphservesprimarilyto [A]Demonstratethedifficultiesecologistsfaceinstudyingdensity-dependentfactorslimitingpopulationgrowth. [B]Advocatemorerigorousstudyofdensity-dependentfactorsinpopulationgrowth. [C]Provethatthedeathratesofanypopulationareneverentirelydensity-independent. [D]underlinetheimportanceofevensmalldensity-dependentfactorsinregulatinglong-termpopulationdensities. 5.Inthetext，theauthordoesallofthefollowingEXCEPT [A]Citetheviewsofotherbiologists. [B]Defineabasicproblemthatthetextaddresses. [C]Presentconceptualcategoriesusedbyotherbiologists. [D]Describetheresultsofaparticularstudy.

2、BernardBailynhasrecentlyreinterpretedtheearlyhistoryoftheUnitedStatesbyapplyingnewsocialresearchfindingsontheexperiencesofEuropeanmigrants.Inhisreinterpretation,migrationbecomestheorganizingprincipleforrewritingthehistoryofpreindustrialNorthAmerica.Hisapproachrestsonfourseparatepropositions.ThefirstoftheseassertsthatresidentsofearlymodernEnglandmovedregularlyabouttheircountryside;migratingtotheNewWorldwassimplyanaturalspillover.AlthoughatfirstthecoloniesheldlittlepositiveattractionfortheEnglishDtheywouldratherhavestayedhomeDbytheeighteenthcenturypeopleincreasinglymigratedtoAmericabecausetheyregardeditasthelandofopportunity.Secondly,Bailynholdsthat,contrarytothenotionthatusedtoflourishinAmericahistorytextbooks,therewasneveratypicalNewWorldcommunity.Forexample,theeconomicanddemographiccharacterofearlyNewEnglandtownsvariedconsiderably.Bailyn'sthirdpropositionsuggesttwogeneralpatternsprevailingamongthemanythousandsofmigrants:onegroupcameasindenturedservants,anothercametoacquireland.Surprisingly,Bailynsuggeststhatthosewhorecruitedindenturedservantswerethedrivingforcesoftransatlanticmigration.ThesecolonialentrepreneurshelpeddeterminethesocialcharacterofpeoplewhocametopreindustrialNorthAmerica.Atfirst,thousandsofunskilledlaborerswererecruited;bythe1730's,however,Americanemployersdemandedskilledartisans.Finally,Bailynarguesthatthecolonieswereahalf-civilizedhinterlandoftheEuropeanculturesystem.HeisundoubtedlycorrecttoinsistthatthecolonieswerepartofanAnglo-Americanempire.ButtodividetheempireintoEnglishcoreandcolonialperiphery,asBailyndoes,devaluestheachievementsofcolonialculture.Itistrue,asBailynclaims,thathighcultureinthecoloniesnevermatchedthatinEngland.Butwhatofseventeenth-centuryNewEngland,wherethesettlerscreatedeffectivelaws,builtadistinguisheduniversity,andpublishedbooksBailynmightrespondthatNewEnglandwasexceptional.However,theideasandinstitutionsdevelopedbyNewEnglandPuritanshadpowerfuleffectsonNorthAmericanculture.AlthoughBailyngoesontoapplyhisapproachtosomethousandsofindenturedservantswhomigratedjustpriortotherevolution,hefailstolinktheirexperiencewiththepoliticaldevelopmentoftheUnitedStates.Evidencepresentedinhisworksuggestshowwemightmakesuchaconnection.TheseindenturedservantsweretreatedasslavesfortheperiodduringwhichtheyhadsoldtheirtimetoAmericanemployers.Itisnotsurprisingthatassoonastheyservedtheirtimetheypassedupgoodwagesinthecitiesandheadedwesttoensuretheirpersonalindependencebyacquiringland.Thus,itisinthewestthatapeculiarlyAmericanpoliticalculturebegan,amongcolonistswhoweresuspiciousofauthorityandintenselyanti-aristocratic. 1.WhichofthefollowingstatementsaboutmigrantstocolonialNorthAmericaissupportedbyinformationinthetext [A]AlargerpercentageofmigrantstocolonialNorthAmericacameasindenturedservantsthanasfreeagentsinterestedinacquiringland. [B]Migrantswhocametothecoloniesasindenturedservantsweremoresuccessfulatmakingalivelihoodthanwerefarmersandartisans. [C]MigrantstocolonialNorthAmericaweremoresuccessfulatacquiringtheirownlandduringtheeighteenthcenturythanduringtheseventeenthcentury. [D]Bythe1730's,migrantsalreadyskilledinatradewereinmoredemandbyAmericanemployersthanwereunskilledlaborers. 2.TheauthorofthetextstatesthatBailynfailedto [A]GivesufficientemphasistotheculturalandpoliticalinterdependenceofthecoloniesandEngland. [B]DescribecarefullyhowmigrantsofdifferentethnicbackgroundspreservedtheircultureintheUnitedStates. [C]TakeadvantageofsocialresearchontheexperiencesofcolonistswhomigratedtocolonialNorthAmericaspecificallytoacquireland. [D]RelatetheexperienceofthemigrantstothepoliticalvaluesthateventuallyshapedthecharacteroftheUnitedStates. 3.Whichofthefollowingbestsummarizestheauthor'sevaluationofBailyn'sfourthproposition [A]Itistotallyimplausible. [B]Itispartiallyacceptable. [C]Itishighlyadmirable. [D]Itiscontroversialthoughpersuasive. 4.Accordingtothetext,BailynandtheauthoragreeonwhichofthefollowingstatementsaboutthecultureofcolonialNewEngland [A]HighcultureinNewEnglandneverequaledthehighcultureofEngland. [B]TheculturalachievementsofcolonialNewEnglandhavegenerallybeenunrecognizedbyhistorians. [C]ThecolonistsimitatedthehighcultureofEngland，anddidnotdevelopaculturethatwasuniquelytheirown. [D]ThesoutherncoloniesweregreatlyinfluencedbythehighcultureofNewEngland. 5.TheauthorofthetextwouldbemostlikelytoagreewithwhichofthefollowingstatementsaboutBailyn'swork [A]BailynunderestimatestheeffectsofPuritanthoughtonNorthAmericanculture. [B]BailynoveremphasizestheeconomicdependenceofthecoloniesonGreatBritain. [C]Bailyn'sdescriptionofthecoloniesaspartofanAnglo-Americanempireismisleadingandincorrect. [D]BailynfailedtotesthispropositionsonaspecificgroupofmigrantstocolonialNorthAmerica.

3、RogerRosenblatt’sbookBlackFiction,inattemptingtoapplyliteraryratherthansociopoliticalcriteriatoitssubject,successfullyalterstheapproachtakenbymostpreviousstudies.AsRosenblattnotes,criticismofBlackwritinghasoftenservedasapretextforexpoundingonBlackhistory.AddisonGayle’srecentwork,forexample,judgesthevalueofBlackfictionbyovertlypoliticalstandards,ratingeachworkaccordingtothenotionsofBlackidentitywhichitpropounds.Althoughfictionassuredlyspringsfrompoliticalcircumstances，itsauthorsreacttothosecircumstancesinwaysotherthanideological,andtalkingaboutnovelsandstoriesprimarilyasinstrumentsofideologycircumventsmuchofthefictionalenterprise.Rosenblatt’sliteraryanalysisdisclosesaffinitiesandconnectionsamongworksofBlackfictionwhichsolelypoliticalstudieshaveoverlookedorignored.WritingacceptablecriticismofBlackfiction,however,presupposesgivingsatisfactoryanswerstoanumberofquestions.Firstofall,isthereasufficientreason,otherthanthefacialidentityoftheauthors,togrouptogetherworksbyBlackauthorsSecond,howdoesBlackfictionmakeitselfdistinctfromothermodernfictionwithwhichitislargelycontemporaneousRosenblattshowsthatBlackfictionconstitutesadistinctbodyofwritingthathasanidentifiable，coherentliterarytradition.LookingatnovelswrittenbyBlackoverthelasteightyyears,hediscoversrecurringconcernsanddesignsindependentofchronology.Thesestructuresarethematic,andtheyspring,notsurprisingly,fromthecentralfactthattheBlackcharactersinthesenovelsexistinapredominantlywhiteculture,whethertheytrytoconformtothatcultureorrebelagainstit.BlackFictiondoesleavesomeaestheticquestionsopen.Rosenblatt’sthematicanalysispermitsconsiderableobjectivity;heevenexplicitlystatesthatitisnothisintentiontojudgethemeritofthevariousworksDyethisreluctanceseemsmisplaced,especiallysinceanattempttoappraisemighthaveledtointerestingresults.Forinstance,someofthenovelsappeartobestructurallydiffuse.Isthisadefect,oraretheauthorsworkingoutof,ortryingtoforge,adifferentkindofaestheticInaddition,thestyleofsomeBlacknovels,likeJeanToomey’sCane,vergesonexpressionismorsurrealism;doesthistechniqueprovideacounterpointtotheprevalentthemethatportraysthefateagainstwhichBlackheroesarepitted,athemeusuallyconveyedbymorenaturalisticmodesofexpressionInspiteofsuchomissions,whatRosenblattdoesincludeinhisdiscussionmakesforanastuteandworthwhilestudy.BlackFictionsurveysawidevarietyofnovels,bringingtoourattentionintheprocesssomefascinatingandlittle-knownworkslikeJamesWeldonJohnson’sAutobiographyofanEx-ColoredMan.Itsargumentistightlyconstructed,anditsforthright,lucidstyleexemplifieslevelheadedandpenetratingcriticism. 1.Theauthorofthetextisprimarilyconcernedwith__________. [A]Evaluatingthesoundnessofaworkofcriticism.[B]Comparingvariouscriticalapproachestoasubject. [C]Discussingthelimitationsofaparticularkindofcriticism. [D]Summarizingthemajorpointsmadeinaworkofcriticism. 2.TheauthorofthetextbelievesthatBlackFictionwouldhavebeenimprovedhadRosenblatt__________. [A]EvaluatedmorecarefullytheideologicalandhistoricalaspectsofBlackfiction. [B]AttemptedtobemoreobjectiveinhisapproachtonovelsandstoriesbyBlackauthors. [C]ExploreingreaterdetailtherecurrentthematicconcernsofBlackfictionthroughoutitshistory. [D]Assessedtherelativeliterarymeritofthenovelsheanalyzesthematically. 3.author’sdiscussionofBlackFictioncanbebestdescribedas__________. [A]Pedanticandcontentious. [B]Criticalbutadmiring. [C]Ironicanddeprecating. [D]Argumentativebutunfocused.authorofthetextemploysallofthefollowinginthediscussionofRosenblatt’s 4.bookEXCEPT：__________. [A]Rhetoricalquestions. [B]Specificexamples. [C]Comparisonandcontrast. [D]Definitionofterms. 5.TheauthorofthetextreferstoJamesWeldonJohnson’sAutobiographyofanEx-ColoredManmostprobablyinorderto__________. [A]pointoutaffinitiesbetweenRosenblatt’smethodofthematicanalysisandearliercriticism. [B]Clarifythepointaboutexpressionisticstylemadeearlierinthepassage. [C]QualifytheassessmentofRosenblatt’sbookmadeinthefirstparagraphofthepassage. [D]giveaspecificexampleofoneoftheaccomplishmentsofRosenblatt’swork.

4、Themajorityofsuccessfulseniormanagersdonotcloselyfollowtheclassicalrationalmodeloffirstclarifyinggoals,assessingtheproblem,formulatingoptions,estimatinglikelihoodsofsuccess,makingadecision,andonlythentakingactiontoimplementthedecision.Rather,intheirday-by-daytacticalmaneuvers,theseseniorexecutivesrelyonwhatisvaguelytermedintuitiontomanageanetworkofinterrelatedproblemsthatrequirethemtodealwithambiguity,inconsistency,novelty,andsurprise;andtointegrateactionintotheprocessofthinking.Generationsofwritersonmanagementhaverecognizedthatsomepracticingmanagersrelyheavilyonintuition.Ingeneral,however,suchwritersdisplayapoorgraspofwhatintuitionis.Someseeitastheoppositeofrationality;othersviewitasanexcuseforcapriciousness.Isenberg'srecentresearchonthecognitiveprocessesofseniormanagersrevealsthatmanagers'intuitionisneitherofthese.Rather,seniormanagersuseintuitioninatleastfivedistinctways.First,theyintuitivelysensewhenaproblemexists.Second,managersrelyonintuitiontoperformwell-learnedbehaviorpatternsrapidly.Thisintuitionisnotarbitraryorirrational,butisbasedonyearsofpainstakingpracticeandhands-onexperiencethatbuildskills.Athirdfunctionofintuitionistosynthesizeisolatedbitsmofdataandpracticeintoanintegratedpicture,ofteninanAha!experience.Fourth,somemanagersuseintuitionasacheckontheresultsofmorerationalanalysis.Mostseniorexecutivesarefamiliarwiththeformaldecisionanalysismodelsandtools,andthosewhousesuchsystematicmethodsforreachingdecisionsareoccasionallyleeryofsolutionssuggestedbythesemethodswhichruncountertotheirsenseofthecorrectcourseofaction.Finally,managerscanuseintuitiontobypassin-depthanalysisandmoverapidlytoengenderaplausiblesolution.Usedinthisway,intuitionisanalmostinstantaneouscognitiveprocessinwhichamanagerrecognizesfamiliarpatterns.Oneoftheimplicationsoftheintuitivestyleofexecutivemanagementisthatthinkingisinseparablefromacting.Sincemanagersoftenknowwhatisrightbeforetheycananalyzeandexplainit,theyfrequentlyactfirstandexplainlater.Analysisisinextricablytiedtoactioninthinking/actingcycles,inwhichmanagersdevelopthoughtsabouttheircompaniesandorganizationsnotbyanalyzingaproblematicsituationandthenacting,butbyactingandanalyzingincloseconcert.Giventhegreatuncertaintyofmanyofthemanagementissuesthattheyface,seniormanagersofteninstigateacourseofactionsimplytolearnmoreaboutanissue.Theythenusetheresultsoftheactiontodevelopamorecompleteunderstandingoftheissue.Oneimplicationofthinking/actingcyclesisthatactionisoftenpartofdefiningtheproblem,notjustofimplementingthesolution. 1.Accordingtothetext,seniormanagersuseintuitioninallofthefollowingwaysEXCEPTto [A]Speedupofthecreationofasolutiontoaproblem. [B]Identifyaproblem. [C]Bringtogetherdisparatefacts. [D]Stipulatecleargoals. 2.Thetextsuggestswhichofthefollowingaboutthewritersonmanagementmentionedinline1,paragraph2 [A]Theyhavecriticizedmanagersfornotfollowingtheclassicalrationalmodelofdecisionanalysis. [B]Theyhavenotbasedtheiranalysesonasufficientlylargesampleofactualmanagers. [C]Theyhavereliedindrawingtheirconclusionsonwhatmanagerssayratherthanonwhatmanagersdo. [D]Theyhavemisunderstoodhowmanagersuseintuitioninmakingbusinessdecisions. 3.ItcanbeinferredfromthetextthatwhichofthefollowingwouldmostprobablybeonemajordifferenceinbehaviorbetweenManagerX,whousesintuitiontoreachdecisions,andManagerY,whousesonlyformaldecisionanalysis [A]ManagerXanalyzesfirstandthenacts;ManagerYdoesnot. [B]ManagerXcheckspossiblesolutionstoaproblembysystematicanalysis;ManagerYdoesnot. [C]ManagerXtakesactioninordertoarriveatthesolutiontoaproblem;ManagerYdoesnot. [D]ManagerYdrawsonyearsofhands-onexperienceincreatingasolutiontoaproblem;ManagerXdoesnot. 4.Thetextprovidessupportforwhichofthefollowingstatements [A]Managerswhorelyonintuitionaremoresuccessfulthanthosewhorelyonformaldecisionanalysis. [B]Managerscannotjustifytheirintuitivedecisions. [C]Managers''intuitionworkscontrarytotheirrationalandanalyticalskills. [D]Intuitionenablesmanagerstoemploytheirpracticalexperiencemoreefficiently. 5.Whichofthefollowingbestdescribestheorganizationofthefirstparagraphofthetext [A]Anassertionismadeandaspecificsupportingexampleisgiven. [B]Aconventionalmodelisdismissedandanalternativeintroduced. [C]Theresultsofrecentresearchareintroducedandsummarized. [D]Twoopposingpointsofviewarepresentedandevaluated.

5、Californiaisalandofvarietyandcontrast.Almosteverytypeofphysicallandfeature，sortofarcticicefieldsandtropicaljunglescanbefoundwithinitsborders.Sharplycontrastingtypesoflandoftenlieveryclosetooneanother.PeoplelivinginBakersfield，forinstance，canvisitthePacificOceanandthecoastalplain，thefertileSanJoaquinValley，thearidMojaveDesert，andthehighSierraNevada，allwithinaradiusofabout100miles.Inotherareasitispossibletogosnowskiinginthemorningandsurfingintheeveningofthesameday，withouthavingtotravellongdistance.ContrastaboundsinCalifornia.ThehighestpointintheUnitedStates(outsideAlaska)isinCalifornia，andsoisthelowestpoint(includingAlaska)。MountWhitney，14，494feetabovesealevel，isseparatedfromDeathValley，282feetbelowsealevel，byadistanceofonly100miles.Thetwoareashaveadifferenceinaltitudeofalmostthreemiles.Californiahasdeep，clearmountainlakeslikeLakeTahoe，thedeepestinthecountry，butitalsohasshallow，saltydesertlakes.IthasLakeTulainyo，12，020feetabovesealevel，andthelowestlakeinthecountry，theSaltonSea，236feetbelowsealevel.Someofitslakes，likeOwensLakeinDeathValley，arenotlakesatall：theyaredrieduplakebeds.Inadditiontomountains，lakes，valleys，deserts，andplateaus，CaliforniahasitsPacificcoastline，stretchinglongerthanthecoastlinesofOregonandWashingtoncombined. 1.WhichofthefollowingisthelowestpointintheUnitedStates? A.LakeTulainyoB.MojavedesertC.DeathValleyD.TheSaltonSea 2.WhereisthehighestpointintheUnitedStateslocated? A.LakeTahoe. B.SierraNevada.C.MountWhitney. D.Alaska. 3.HowfarawayisDeathValleyfromMountWhitney? A.About3miles. D.14，494feet. 4.WhichofthefollowingisNOTmentionedinthepassageasbeingwithinaradiusofabout100milesofBakersfield? A.ThePacificOcean. B.SanJoaquinValley. C.MojaveDesert. D.OregonandWashington. 5.WhichstatementbestdemonstratesthatCaliforniaisalandofvarietyandcontrast? A.ThehighestlakeinCaliforniaisLakeTulainyo. B.ItispossibletogosurfingandsnowskiinginsomepartsofCaliforniawithouthavingtotravellongdistance. C.SierraNevada，SanJoaquinValley，MojaveDesertandthePacificOceanallliewithinaradiusofabout100miles. D.OwensLake，inDeathValley，isnotreallyalakeatall.