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.

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.

That’s________excitingnewsthatI’dliketotelleveryonetosharethejoy.

Unlessallthemembersagreeto__8__totheplantheremaybefurtherdevelopmentinthecourseofaction.

Everymeans____triedoutbutneverwithsuccess,asfarasmyknowledgegoes.