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GRE试题(二)

section2

time——30minutes

25questions

question1——7

inagame,exactlysixinvertedcupsstandsidebysideinastraightline,andeachhasexactlyoneballhidden

underit.thecupsarenumberedconsecutively1through6.eachoftheballsispaintedasinglesolidcolor.

thecolorsoftheballsaregreen,magenta,orange,purple,red,andyellow.theballshavebeenhiddeny

nderthecupsinamannerthatconformstothefolowingconditions:

thepurpleballmustbehiddenunderalower-numberedcupthantheorangeball.theredballmustbehiddenunderacupimmediatelyadjacenttothec upunder

whichthemagentaballishidden.thegreenballmustbehiddenundercup5.

1.whichofthefollowingcouldbecoloroftheballsunderthecups,inorderfrom1through6?

(a)green,yellow,magenta,red,purple,orange

(b)magenta,green,purple,red,orange,yellow

(c)magenta,red,purple,yellow,green,orange

(d)red,purple,magenta,yellow,green,orange

(e)red,purple,magenta,yellow,green,orange

2.ifthemagentaballisundercup4,theredballmustbeundercup

(a)1(b)2(c)3(d)4(e)5

3.aballofwhichoffollowingcolorscouldbeundercup6?

(a)green(b)magenta(c)purple(d)red(e)yellow

4.ifthepurpleballisundercup4,theorangeballmustbeundercup

(a)1(b)2(c)3(d)5(e)6

5.whichofthefollowingmustbetrue?

(a)thegreenballisunderalower-numberedcupthanthegreenball.

(b)theorangeballisunderalower-numberedcupthanthegreenball.

(c)thepurpleballisunderalower-numberedcupthanthegreenball.

(d)thepurpleballisunderalower-numberedcupthantheredball.

(e)theredballisunderalower-numberedcupthantheyellowball.

6.iftheorangeballisundercup2,ballsofwhichofthefollowingcolorscouldbeundercupsimmediatelya djacenttoeachother?

(a)greenandmagenta

(b)greenandpurple

(c)orangeandyellow

(d)purpleandred

(e)redandyellow

7.ifthemagentaballisundercup1,ballsofwhichofthefollowingcolorsmustbeundercupsimmediatelyadja centtoeachother?

(a)greenandorange

(b)greenandyellow

(c)purpleandred

(d)purpleandyellow

(e)redandyellow

8.thecompanyshouldnotbeheldresponsibleforfailingtocorrectthecontrol-panelproblemthatcausedtheaccident.althoughtheproblemhadbeenmentionedearlierinasafetyinspe ctor‘sreport,companiesreceivehundredsofreportsofsuchproblem,andindustrystandardno.42requiresa ctiononthoseproblemonlywhenanaccidentisforeseeable.

ifthesecondsentenceintheparagraphaboveisfactuallycorrect,theanswertowhichofthefollowingque stionsismostrelevantinhelpingtodeterminewhetherornotthecompanyviolatedindustrystandardno.42w henitfailedtocorrectthecontrol-panelproblem?

(a)wastheaccidentserious?

(b)wasthecontrol-panelproblemofatypethatisknowntoincidentthatanaccidentislikely?

(c)sincetheaccident,hasthecompanydoneaspecialsafetycheckonallcontrolpanels?

(d)didthesafetyinspectormentionmorethanoneprobleminthesamereport?

(e)howlongwasthecontrolpanelinusebeforetheproblemwasdiscovered?

9.riothamus,afifth-centurykingofthebritons,wasbetrayedbyanassociate,foughtbravelyagainstthegothsbutwasdefeated,anddisappearedmysteriously.

riothamus,matchalmostexactlythoseattributedtokingarthur.therefore,riothamusmustbethehistoric almodelforthelegendarykingarthur.

theargumentaboverequiresatleastoneadditionalpremise.whichofthefollowingcouldbesucharequire dpremise?

(a)modernhistorianshavedocumentedtheactivitiesofriothamusbetterthanthoseofanyotherfifth-centuryking.

(b)thestoriestoldaboutkingarthurarenotstrictlyfictitiousbutarebasedonahistoricalpersonandhistorical events.

(c)riothamus‘associatesweretheauthorsoftheoriginallegendsaboutkingarthur.

(d)legentsaboutthefifthcenturyusuallyembellishandromanticizetheactualconditionsofthelivesoffifth-centurynobility.

(e)posterityusuallyrememberslegendsbetterthanitrememberstheactualhistoricaleventsonwhichtheyar ebased.

10.aworldwidebanontheproductionofcertainozone-destroyingchemicalswouldprovideonlyanillusionofprotection.quantitiesofsuchchemicals,alreadyprod uced,existascoolantsinmillionsofrefrigerators.whentheyreachtheozonelayerintheatmosphere,theirac tioncannotbehalted.sothereisnowaytopreventthesechemicalsfromdamagingtheozonelayerfurther.

whichofthefollowing,iftrue,mostseriouslyweakenstheargumentabove?

(a)itisimpossibletomeasurewithaccuracythequantityofozone-destroyingchemicalsthatexistascoolantsinrefrigerators.

(b)inmodernsocieties,refrigerationoffoodisnecessarytopreventunhealthyandpotentiallylife-threateningconditions.

(c)replacementchemicalsthatwillnotdestroyozonehavenotyetbeendevelopedandwouldbemoreexpens ivethanthechemicalsnowusedascoolantsinrefrigerators.

(d)evenifpeopleshouldgiveuptheuseofrefrigeration,thecoolantsalreadyinexistingrefrigeratorsareathrea ttoatmosphericozone.

(e)thecoolantsinrefrigeratorcanbefullyrecoveredattheendoftheusefullifeoftherefrigeratorsandreused.

question11——15

agovernmentisassigningeachofsixembassyofficeworkers——farr,golden,hayakawa,inserra,jones,andkovacs——toembassies.therearefourembassies.embassieslandmarelocatedincountrieswithdryclimates,wher easembassiespandtarelocatedincountrieswithhumidclimates.theofficeworkersmustbeassignedac cordingtothefollowingrules:

eachembassymusthaveatleastoneoftheworkersassignedtoit.atleastoneembassyinahumidclimatem usthaveatleasttwoworkersassigned

toit.goldencannotbeassignedtothesameembassyaskovacs.inserramustbeassignedtanembassyina dryclimates.jonesmustbeassignedtoanembassyinahumidclimate.11.whichofthefollowingisanaccep tableassignmentoftheworkerstotheembassies?

lmpt(a)farr,goldeninserra,kovacshayakawajones

(b)golden,kovacsinserrajonesfarr,hayakawa

(c)goldenfarr,inserrakovacsjones,hayakawa

(d)jonesgolden,inserrahayakawafarr,kovacs

(e)kovacsfarr,hayakawainserragolden,jones

12.whichofthefollowingmustbeassignedeithertoembassylortoembassym?

(a)farr

(b)golden

(c)hayakawa

(d)inserra

(e)kovacs

13.whichofthefollowingcannotbetrue?

(a)oneworkerisassignedtol.

(b)twoworkersisassignedtop.

(c)twoworkersareassignedtol.

(d)threeworkersareassignedtom.

(e)threeworkersareassignedtot.

14.ifgoldenandkovacsareassignedtolandm,respectively,whichofthefollowingmustbetrue?

(a)farrisassignedtoeitherport.

(b)inserraisassignedtoeitherport.

(c)pandteachhavetwoworkersassignedtothem.

(d)hayakawaisassignedtol.

(e)hayakawaisassignedtot.

15.ifgolden,hayakawa,andkovacsareamongtheworkersassignedtoembassiesinhumidclimayes,whichofthefollowingmustbetrue?

(a)farrisassignedtoanembassytowhichnoneoftheotherfiveofficeworkersisassigned.

(b)goldenisassignedtoanembassytowhichnoneoftheotherfiveofficeworkersisassigned.

(c)jonesisassignedtothesameembassyasgolden.

(d)hayakawaisassignedtothesameembassyasgolden.

(e)hayakawaisassignedtothesameembassyaskovacs.

question16——19

avolunteerusesatrucktopickupdonationsofunsoldfoodandclothingfromstoresandtodeliverthemtoloc ationswheretheycanbedistributed.hedrivesonlyalongacertainnetworkofroads.

inthenetworktherearetwo-wayroadsconnectingeachofthefollowingpairsofpoints:1with2,1with3,1with5,2with6,3with7,5with6,and 6with7.therearealsoone-wayroadsgoingfrom2to4,from3to2,andfrom4to3.therearenootherroadsinthenetwork,andtheroadsint henetworkdonotintersect.

tomakeatripinvolvingpickupsanddeliverirs,thevolunteeralwaystakesaroutethatforthewholetrippasse sthroughthefewestofthepoints1through7,countingapointtwiceifthevolunteerpassesthroughittwice.

thevolunteer‘shomeisatpoint3.donationscanbepickedupatasupermarketatpoint1,aclothingstoreatpoint5,andabak eryatpoint4.deliveriescanbemadeasneededtoatutoringcenteratpoint2,adistributioncenteratpoint6,a ndashelteratpoint7.

16.ifthevolunteerstartsatthesupermarketandnextistogototheshelter,thefirstintermediatepointhisrpute passesthroughmustbe

(a)2

(b)3

(c)5

(d)6

(e)7

17.if,startingfromhome,thevolunteernextistomakepickupsfortheshelteratthesupermarketandthebake ry(ineitherorder),thefirsttwointermediatepointsonhisroute,beginningwiththefirst,mustbe

(a)1and2

(b)1and3

(c)2and1

(d)2and4

(e)4and2

18.if,startingfromtheclothingstore,thevolunteernextistopickupbreadateitherthesupermarketorthebak ery(whicheverstopmakeshisroutegothroughthefewestofthepoints)andthenistogototheshelter,thefirsttwopointshereachesaftertheclothingstore,beginningwiththefirst,m ustbe

(a)1and2

(b)1and3

(c)4and2

(d)6and2

(e)6and4

19.ifthevolunteeristomakeatripstartingattheshelter,nextgoingtothebakeryforapickup,andthenending atthedistributioncenter,thefirsttwointermediatepointsonhisroute,beginningwiththefirst,canbe

(a)3and1

(b)3and4

(c)4and2

(d)6and2

(e)6and5

question20——22

adeveloperisplanningtobuildahousingcomplexonanemptytractofland.exactlysevendifferentstylesofh ouses——q,r,s,t,w,x,andz——willbebuildinthecomplex.thecomplexwillcontainseveralblocks,andthedeveloperplanstoputhousesofa tleastthreedifferentstylesoneachblock.thedeveloperwillbuildthecomplexaccordingtothefollowingrule s:

anyblockthathasstylezonitmustalsohavestylewonit.

anyblockadjacenttoonethathasonitbothstylesandstylexmusthaveonit

styletandstylez.

noblockadjacenttoonethathasonitbothstylerandstylezcanhaveonit

eitherstyletorstylew.

noblockcanhaveonitbothstylesandstyleq.

20.whichofthefollowingcanbethecompleteselectionofhousestyleonablock?

(a)q,r,s(b)q,s,x(c)r,t,z(d)s,w,z(e)t,x,z

21.whichofthefollowingcanbethecompleteselectionofhousestyleonablock?

(a)q(b)r(c)s(d)w(e)x

22.whichofthefollowingcanbethecompleteselectionofhousestyleforablockthatisadjacenttoexactlyon eblock,ifthatoneblockhasonitstyles,t,w,andxonly?

(a)s,t,andx(b)t,x,andz(c)r,s,x,andz(d)s,t,w,andx(e)t,w,x,andz

23.whenanosprey(afish-eatinghawk)returnafromfishingtoitsnestingareawithafishlikeanalewife,apollack,orasmelt,otherospreyswillretracei tsflightpathinhopesofgoodfishing.thereisseldomsucharesponseifthefirstbirdbringsbackawinterfloun der.yetospreysfeedonwinterflounderjustasreadyasodanyotherfish.

whichofthefollowing,iftrue,contributesmosttoanexplanationofthefishingbehaviorofospreysasitisdesc ribedabove?

(a)ospreysareseldomabletocatchalewives,pollack,orsmelt.

(b)alewives,pollack,andsmaltmoveinschools,butwinterflounderdonot.

(c)winterflounderprefershallowerwatersthandoalewives,pollack,orsmelt.

(d)winterflounderpreferandpollackexhibitprotectivecoloration,butalewivesandsmeltdonot.

(e)ospreysthatliveinnestingareaareespeciallysuccessfulfishers.

24.arecentstudyofaninsurancecompany‘sunderwritersindicatethatthosewhoworkedinpleasantphysicalsurroundingswere25percentmorepro ductivethantheirpeersinunpleasantphysicalsurroundings.objectivecriteriaforevaluatingjobperform anceincludedcaseloadandcomplexityofcases.thisshowsthatimprovingworkers’enviromentsincreasesthoseworkers‘productivity.

whichofthefollowing,iftrue,mostseriouslyweakenstheconclusionabove?

(a)onaverage,less-productiveemployeesspendnofewerhoursperdayat theirworkstationsthandotheirmore-productivepeers.

(b)unpleasantsurroundingsgiveemployeeslessmotivationtoworkhardthan morepleasantsurroundingsdo.

(c)themore-productiveemployeesaregenerallyrewardedwithpleasantoffice space.

(d)more-productiveemployeesdonotworkanymorehoursthantheir less-productivepeers.

(e)peerpressurediscouragesemployeesincrowed,unpleasantsurroundings frommakingphonecallstotheirownfamilymembersduringworktime.

25.inacertaincountry,individualtendtochangetheirpoliticalaffiliationreadilyfromonepoliticalpartyto another.inthepasttheunionpartygrewlargerbecauseofthistendency,butalthoughmostofthosewho changetoanewpartyaffiliationchangetotheunionparty,theunionpartyhasremainedaboutthesame sizeinrecentyears.

whichofthefollowing,iftrue,besthelpstoexplainthechangeinthegrowthpatternoftheunionpartymen tionedabove?

(a)theeconomyhasbeenprosperingrecently,andmanyofthosewhochange partyaffiliationareupwardlymobileandproperous.

(b)inrecentyeasthosewhowerepreviouslynonaffiliatedhavetendedtojoin theunionpartyiftheyjoinedanypartyatall.

(c)thepercentageofvoting-agecitizenswhochangepoliticalpartyaffiliation eachyearhasremainedconstant,andthenumberofvoting-agecitizens hasremainedthesame.

(d)thepercentageofvoting-agecitizenswhoareaffiliatedwithanypolitical partyhasincreasedoverthelasttenyears.

(e)manymembersoftheunipnpartyhaveabandonedallpoliticalparty affiliationinrecentyears.

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