GMAT逻辑思维训练题型汇总.docx
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GMAT逻辑思维训练题型汇总.docx
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GMAT逻辑思维训练题型汇总
GMAT逻辑思维训练题型汇总2010
GMAT逻辑思维训练题型汇总
1.theiceonthefrontwindshieldofthecarhadformedwhenmoisturecondensedduringthenight.theicemeltedquicklyafterthecarwaswarmedupthenextmorningBECausethedefrostingvent,whichblowsonlyonthefrontwindshield,wasturnedonfullforce.
whichofthefollowing,iftrue,mostseriouslyjeopardizesthevalidityoftheexplanationforthespeedwithwhichtheicemelted?
a)thesidewindowshadnoicecondensationonthem
b)eventhoughnoattemptwasmadetodefrostthebackwindow,theicetheremeltedatthesameratesasdidtheiceonthefrontwindshield.
c)thespeedatwhichiceonawindowmeltsincreasesasthetemperatureoftheairblownonthewindowincreases.
d)thewarmairfromthedefrostingventforthefrontwindshieldcoolsrapidlyasitdissipatesthroughouttherestofthecar.
e)thedefrostingventoperatesefficientlyevenwhentheheater,whichblowswarmairtowardthefeetorfacesofthedriverandpassengers,ison.
2.pandasarerapidlydisappearingfromthewild.therefore,inordertopreservethespecies,existingpandasshouldbecapturedandplacedinzoosaroundtheworld.
whichofthefollowing,iftrue,castsdoubtontheconclusiondrawnabove?
a)whenincaptivity,pandastypicallyproducemoreyoungthantheydointheirnativehabitat
b)newbornpandasinzoosarenotlikelytodiefrominfectiousdiseases,whereasnewbornpandasinthewildarelikelytodiefromthesediseases.
c)sufficientquantitiesofbamboo,thepanda’sonlyfoodcannotbemadeavailableoutsidethepanda’snativehabitat.
d)manyzoosareeagertoincreasetheirstockofrareandexoticanimals,buttherearenotenoughpandasforallthezoosthatwantone.
e)pandasinzooshaveasmanyoffspringthatsurvivetoadulthoodasdopandasinthewild.
3.overthepastfifteenyears,thelargelyurbanizednortheasternunitedstateshasshownmoreandmoretheinfluenceofthesouthwesternportionofthecounty.once,veryfewpeopleinnewyorkcitycouldbefoundsortingcowboybootsandstetsonhats,andnomajorradiostationboastedtwenty-four-hour-a-dayprogrammingofcountryandwesternmusic.thelatestdevelopmentistherapidproliferationofrestaurantsservingchili,nachos,burritos,andothertex-mexdishes.
thepassageabovemakeswhichofthefollowingassumptions?
a)thelifestyleofpeopleinthenortheasthasbeenenrichedbytheinfluenceofthesouthwesternstates.
b)mostresidentsofthesouthwesternstatesregularlyeatattex-mexrestaurants.
c)overthelastfifteenyears,residentsofthesouthwesternunitedstateshaveincreasinglyadoptedlifestylessimilartothoseofthenortheast.
d)tex-mexdishesareanelementoftheregionalcuisineofthesouthwesternstates.
e)peopleinthenortheasternunitedstateseatoutmorefrequentlythantheydidfifteenyearsago.
4.popularcultureintheunitedstateshasbecomeeuropeanizedtoanextentunimaginabletwenty-fiveyearsago.notmanypeoplethendrankwinewithmeals,andnoonedrankimportantmineralwater.noideawouldhavebeenmoreastonishingthanthatamericanswouldpaytowatchsoccergames.suchthoughtsarisebecauseofareportthattheamericanassociationofstatehighwayandtransportationofficialshasjustadoptedaproposaltodevelopthecountry’sfirstcomprehensiveinterstatesystemofroutesforbicycles.
whichofthefollowinginferencesisbestsupportedbythepassage?
a)long-distancebicycleroutesareusedineurope.
b)drinkingimportedmineralwaterisagreaterluxurythandrinkingimportedwine.
c)unitedstatesculturehasbenefitedfromexposuretoforeignideas.
d)mosteuropeansmakeregularuseofbicycles.
e)theinfluenceoftheunitedstatesoneuropeanculturehasassumedunprecedentedproportionsinthelasttwenty-fiveyears.
5.“onthewhole,”ms.winsonremarked,“engineeringstudentsarelaziernowthantheyusedtobe.iknowbecausefewerandfewerofmystudentsregularlydotheworktheyareassigned.”
theconclusiondrawnabovedependsonwhichofthefollowingassumptions?
a)engineeringstudentsareworkinglessbecause,inaboomingmarket,theyarespendingmoreandmoretimeinvestigatingdifferentjobopportunities.
b)whetherornotstudentsdotheworktheyareassignedisagoodindicationofhowlazytheyare.
c)engineeringstudentsshouldworkharderthanstudentsinlessdemandingfields.
d)ms.winson’sstudentsaredoinglessworkbecausems.winsonisnotaseffectiveateacherassheoncewas.
e)lazinessissomethingmostpeopledonotoutgrow.
6.theaveragelifeexpectancyfortheunitedstatespopulationasawholeis73.9years,butchildrenborninhawaiiwillliveanaverageof77years,andthoseborninlouisiana,71.7years.ifanewlywedcouplefromlouisianaweretobegintheirfamilyinhawaii,therefore,theirchildrenwouldbeexpectedtolivelongerthanwouldbethecaseifthefamilyremainedinlouisiana.
whichofthefollowingstatement,iftrue,wouldmostsignificantlystrengthentheconclusiondrawninthepassage?
a)aspopulationdensityincreasesinhawaii,lifeexpectancyfiguresforthatstatearelikelytobereviseddownward.
b)environmentalfactorstendingtofavorlongevityareabundantinhawaiiandlessnumerousinlouisiana.
c)twenty-fivepercentofalllouisianaianswhomovetohawaiilivelongerthan77years.
d)overthelastdecade,averagelifeexpectancyhasrisenatahigherrateforlouisianaiansthanforhawaiians.
e)studiesshowthataveragelifeexpectancyforhawaiianswhomovepermanentlytolouisianaisroughlyequaltothatofhawaiianswhoremaininhawaii.
7.aconservationgroupintheunitedstatesistryingtochangethelong-standingimageofbatsasfrighteningcreatures.thegroupcontendsthatbatsarefearedandpersecutedsolelybecausetheyareshyanimalsthatareactiveonlyatnight.
whichofthefollowing,iftrue,wouldcastthemostseriousdoubtontheaccuracyofthegroup’scontention?
a)batsaresteadilylosingnaturalroostingplacessuchascavesandhollowtreesandarethusturningtomoredevelopedareasforroosting.
b)batsarethechiefconsumersofnocturnalinsectsandthuscanhelpmaketheirhuntingterritorymorepleasantforhumans.
c)batsareregardedasfrighteningcreaturesnotonlyintheunitedstatesbutalsoineurope,africa,andsouthamerica.
d)raccoonsandowlsareshyandactiveonlyatnight;yettheyarenotgenerallyfearedandpersecuted.
e)peopleknowmoreaboutthebehaviorofothergreatlyfearedanimalspecies,suchaslions,alligators,andsnakes,thantheydoaboutthebehaviorofbats.
8.intheaftermathofaworldwidestock-marketcrash,countrytclaimedthattheseverityofthestock-marketcrashitexperiencedresultedfromtheacceleratedprocessofdenationalizationmanyofitsindustriesunderwentshortlybeforethecrash.
whichofthefollowing,ifitcouldbecarriedout,wouldbemostusefulinanevaluationofcountryt’sassessmentofthecausesoftheseverityofitsstock-marketcrash?
a)calculatingtheaveragelossexperiencedbyindividualtradersincountrytduringthecrash.
b)usingeconomictheorytopredictthemostlikelydateofthenextcrashincountryt.
c)comparingthetotalnumberofsharessoldduringtheworstdaysofthecrashincountryttothetotalnumberofsharessoldincountrytjustpriortothecrash.
d)comparingtheseverityofthecrashincountryttotheseverityofthecrashincountriesotherwiseeconomicallysimilartocountrytthathavenotexperiencedrecentdenationalization.
e)comparingthelong-termeffectsofthecrashonthepurchasingpowerofthecurrencyofcountryttotheimmediate,moresevereshort-termeffectsofthecrashonthepurchasingpowerofthecurrencyofcountryt.
9.increaseinthelevelofhigh-densitylipoprotein(hdl)inthehumanbloodstreamlowerbloodstream-cholesterollevelsbyincreasingthebody’scapacitytoriditselfofexcesscholesterol.levelsofhdlinthebloodstreamofsomeindividualsaresignificantlyincreasedbyaprogramofregularexerciseandweightreduction.
whichofthefollowingcanbecorrectlyinferredfromthestatementabove?
a)individualswhoareunderweightdonotrunanyriskofdevelopinghighlevelsofcholesterolinthebloodstream.
b)individualswhodonotexerciseregularlyhaveahighriskofdevelopinghighlevelsofcholesterolinthebloodstreamlateinlife.
c)exerciseandweightreductionarethemosteffectivemethodsofloweringbloodstreamcholesterollevelsinhumans.
d)aprogramofregularexerciseandweightreductionlowerscholesterollevelsinthebloodstreamofsomeindividuals.
e)onlyregularexerciseisnecessarytodecreasecholesterollevelinthebloodstreamofindividualsofaverageweight.
10.meteoriteexplosionsintheearth’satmosphereaslargeastheonethatdestroyedforestsinsiberia,withapproximatelytheforceofatwelve-megatonnuclearblast,occuraboutonceacentury.theresponseofhighlyautomatedsystemscontrolledbycomplexcomputerprogramstounexpectedcircumstancesisunpredictable.
whichofthefollowingconclusionscanmostproperlybedrawn,ifthestatementsabovearetrue,aboutahighlyautomatednuclear-missiledefensesystemcontrolledbyacomplexcomputerprogram?
a)withinacenturyafteritsconstruction,thesystemwouldreactinappropriatelyandmightaccidentallystartanuclearwar.
b)thesystemwouldbedestroyedifanexplosionofalargemeteoriteoccurredintheearth’satmosphere.
c)itwouldbeimpossibleforthesystemtodistinguishtheexplosionofalargemeteoritefr
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