GRE模拟试题.doc

GRE模拟试题（二）SECTION2Time-30minutes25QuestionsQuestion1-7Inagame,exactlysixinvertedcupsstandsidebysideinastraightline,andeachhasexactlyoneballhiddenunderit.Thecupsarenumberedconsecutively1through6.Eachoftheballsispaintedasinglesolidcolor.ThecolorsoftheballsareGREen,magenta,orange,purple,red,andyellow.Theballshavebeenhiddenynderthecupsinamannerthatconformstothefolowingconditions:The purpleball must be hidden under alower-numberedcup than the orangeball.There dball must be hidden under acupim media tely adjacent to the cupunderwhich the magentaball is hidden.The greenball must be hiddenunder cup5.1.Which of the following could be color of the ball sunder the cups,in or der from 1 through 6?(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,orange2.If the magentaball is under cup 4,the redball must be under cup(A)1(B)2(C)3(D)4(E)53.A ball of which off ollowing colors could be under cup 6?(A)Green(B)Magenta(C)Purple(D)Red(E)Yellow4.If the purple ball is under cup 4,the orange ball must be under cup(A)1(B)2(C)3(D)5(E)65.Which of the following must be true?(A)The green ball is under alower-numbered cup than the green ball.(B)The orange ball is under alower-numbered cup than thegreen ball.(C)The purple ball is under alower-numbered cup than thegreen ball.(D)The purple ball is under alower-numbered cup than thered ball.(E)The red ball is under alower-numbered cup than the yellow ball.6.If the orange ball is under cup 2,balls of which of the following colors could be under cup simmediately adjacent to each other?(A)Greenandmagenta(B)Greenandpurple(C)Orangeandyellow(D)Purpleandred(E)Redandyellow7.Ifthemagentaballisundercup1,ballsofwhichofthefollowingcolorsmustbeundercupsimmediatelyadjacenttoeachother?(A)Greenandorange(B)Greenandyellow(C)Purpleandred(D)Purpleand yellow(E)Redandyellow8.Thecompanyshouldnotbeheldresponsibleforfailingtocorrectthecontrol-panelproblemthatcausedtheaccident.Althoughtheproblemhadbeenmentionedearlierinasafetyinspectorsreport,companiesreceivehundredsofreportsofsuchproblem,andIndustryStandardNo.42requiresactiononthoseproblemonlywhenanaccidentisforeseeable.Ifthesecondsentenceintheparagraphaboveisfactuallycorrect,theanswertowhichofthefollowingquestionsismostrelevantinhelpingtodeterminewhetherornotthecompanyviolatedIndustryStandardNo.42whenitfailedtocorrectthecontrol-panelproblem?(A)Wastheaccidentserious?(B)Wasthecontrol-panelproblemofatypethatisknowntoincidentthatanaccidentislikely?(C)SinCETheaccident,hasthecompanydoneaspecialsafetycheckonallcontrolpanels?(D)Didthesafetyinspectormentionmorethanoneprobleminthesamereport?(E)Howlongwasthecontrolpanelinusebeforetheproblemwasdiscovered?9.Riothamus,afifth-centurykingoftheBritons,wasbetrayedbyanassociate,foughtbravelyagainsttheGothsbutwasdefeated,anddisappearedmysteriously.Riothamus,matchalmostexactlythoseattributedtoKingArthur.Therefore,RiothamusmustbethehistoricalmodelforthelegendaryKingArthur.Theargumentaboverequiresatleastoneadditionalpremise.Whichofthefollowingcouldbesucharequiredpremise?(A)ModernhistorianshavedocumentedtheactivitiesofRiothamusbetterthanthoseofanyotherfifth-centuryking.(B)ThestoriestoldaboutKingArthurarenotstrictlyfictitiousbutarebasedonahistoricalpersonandhistoricalevents.(C)RiothamusassociatesweretheauthorsoftheoriginallegendsaboutKingArthur.(D)Legentsaboutthefifthcenturyusuallyembellishandromanticizetheactualconditionsofthelivesoffifth-centurynobility.(E)Posterityusuallyrememberslegendsbetterthanitrememberstheactualhistoricaleventsonwhichtheyarebased.10.Aworldwidebanontheproductionofcertainozone-destroyingchemicalswouldprovideonlyanillusionofprotection.Quantitiesofsuchchemicals,alreadyproduced,existascoolantsinmillionsofrefrigerators.Whentheyreachtheozonelayerintheatmosphere,theiractioncannotbehalted.Sothereisnowaytopreventthesechemicalsfromdamagingtheozonelayerfurther.Whichofthefollowing,iftrue,mostseriouslyweakenstheargumentabove?(A)Itisimpossibletomeasurewithaccuracythequantityofozone-destroyingchemicalsthatexistascoolantsinrefrigerators.(B)Inmodernsocieties,refrigerationoffoodisnecessarytopreventunhealthyandpotentiallylife-threateningconditions.(C)Replacementchemicalsthatwillnotdestroyozonehavenotyetbeendevelopedandwouldbemoreexpensivethanthechemicalsnowusedascoolantsinrefrigerators.(D)Evenifpeopleshouldgiveuptheuseofrefrigeration,thecoolantsalreadyinexistingrefrigeratorsareathreattoatmosphericozone.(E)Thecoolantsinrefrigeratorcanbefullyrecoveredattheendoftheusefullifeoftherefrigeratorsandreused.Question11-15Agovernmentisassigningeachofsixembassyofficeworkers-Farr,Golden,Hayakawa,Inserra,Jones,andKovacs-toembassies.Therearefourembassies.EmbassiesLandMarelocatedincountrieswithdryclimates,whereasembassiesPandTarelocatedincountrieswithhumidclimates.Theofficeworkersmustbeassignedaccordingtothefollowingrules:Eachembassymusthaveatleastoneoftheworkersassignedtoit.Atleastoneembassyinahumidclimatemusthaveatleasttwoworkersassignedtoit.GoldencannotbeassignedtothesameembassyasKovacs.Inserramustbeassignedtanembassyinadryclimates.Jonesmustbeassignedtoanembassyinahumidclimate.11.Whichofthefollowingisanacceptableassignmentoftheworkerstotheembassies?LMPT(A)Farr,GoldenInserra,KovacsHayakawaJones(B)Golden,KovacsInserraJonesFarr,Hayakawa(C)GoldenFarr,InserraKovacsJones,Hayakawa(D)JonesGolden,InserraHayakawaFarr,Kovacs(E)KovacsFarr,HayakawaInserraGolden,Jones12.WhichofthefollowingmustbeassignedeithertoembassyLortoembassyM?(A)Farr(B)Golden(C)Hayakawa(D)Inserra(E)Kovacs13.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.Question16-19Avolunteerusesatrucktopickupdonationsofunsoldfoodandclothingfromstoresandtodeliverthemtolocationswheretheycanbedistributed.Hedrivesonlyalongacertainnetworkofroads.Inthenetworktherearetwo-wayroadsconnectingeachofthefollowingpairsofpoints:1with2,1with3,1with5,2with6,3with7,5with6,and6with7.Therearealsoone-wayroadsgoingfrom2to4,from3to2,andfrom4to3.Therearenootherroadsinthenetwork,andtheroadsinthenetworkdonotintersect.Tomakeatripinvolvingpickupsanddeliverirs,thevolunteeralwaystakesaroutethatforthewholetrippassesthroughthefewestofthepoints1through7,countingapointtwiceifthevolunteerpassesthroughittwice.Thevolunteershomeisatpoint3.Donationscanbepickedupatasupermarketatpoint1,aclothingstoreatpoint5,andabakeryatpoint4.Deliveriescanbemadeasneededtoatutoringcenteratpoint2,adistributioncenteratpoint6,andashelteratpoint7.16.Ifthevolunteerstartsatthesupermarketandnextistogototheshelter,thefirstintermediatepointhisrputepassesthroughmustbe(A)2(B)3(C)5(D)6(E)717.If,startingfromhome,thevolunteernextistomakepickupsfortheshelteratthesupermarketandthebakery(ineitherorder),thefirsttwointermediatepointsonhisroute,beginningwiththefirst,mustbe(A)1and2(B)1and3(C)2and1(D)2and4(E)4and218.If,startingfromtheclothingstore,thevolunteernextistopickupbreadateitherthesupermarketorthebakery(whicheverstopmakeshisroutegothroughthefewestofthepoints)andthenistogototheshelter,thefirsttwopointshereachesaftertheclothingstore,beginningwiththefirst,mustbe(A)1and2(B)1and3(C)4and2(D)6and2(E)6and419.Ifthevolunteeristomakeatripstartingattheshelter,nextgoingtothebakeryforapickup,andthenendingatthedistributioncenter,thefirsttwointermediatepointsonhisroute,beginningwiththefirst,canbe(A)3and1(B)3and4(C)4and2(D)6and2(E)6and5Question20-22Adeveloperisplanningtobuildahousingcomplexonanemptytractofland.Exactlysevendifferentstylesofhouses-Q,R,S,T,W,X,andZ-willbebuildinthecomplex.Thecomplexwillcontainseveralblocks,andthedeveloperplanstoputhousesofatleastthreedifferentstylesoneachblock.Thedeveloperwillbuildthecomplexaccordingtothefollowingrules:AnyblockthathasstyleZonitmustalsohavestyleWonit.AnyblockadjacenttoonethathasonitbothstyleSandstyleXmusthaveonitstyleTandstyleZ.NoblockadjacenttoonethathasonitbothstyleRandstyleZcanhaveoniteitherstyleTorstyleW.NoblockcanhaveonitbothstyleSandstyleQ.20.Whichofthefollowingcanbethecompleteselectionofhousestyleonablock?(A)Q,R,S(B)Q,S,X(C)R,T,Z(D)S,W,Z(E)T,X,Z21.Whichofthefollowingcanbethecompleteselectionofhousestyleonablock?(A)Q(B)R(C)S(D)W(E)X22.Whichofthefollowingcanbethecompleteselectionofhousestyleforablockthatisadjacenttoexactlyoneblock,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,andZ23.Whenanosprey(afish-eatinghawk)returnafromfishingtoitsnestingareawithafishlikeanalewife,apollack,orasmelt,otherospreyswillretraceitsflightpathinhopesofgoodfishing.Thereisseldomsucharesponseifthefirstbirdbringsbackawinterflounder.Yetospreysfeedonwinterflounderjustasreadyasodanyotherfish.Whichofthefollowing,iftrue,contributesmosttoanexplanationofthefishingbehaviorofospreysasitisdescribedabove?(A)Ospreysareseldomabletocatchalewives,pollack,orsmelt.(B)Alewives,pollack,andsmaltmoveinschools,butwinterflounderdonot.(C)Winterflounderprefershallowerwatersthandoalewives,pollack,orsmelt.(D)Winterflounderpreferandpollackexhibitprotectivecoloration,butalewivesandsmeltdonot.(E)Ospreysthatliveinnestingareaareespeciallysuccessfulfishers.24.Arecentstudyofaninsurancecompanysunderwritersindicatethatthosewhoworkedinpleasantphysicalsurroundingswere25percentmoreproductivethantheirpeersinunpleasantphysicalsurroundings.Objectivecriteriaforevaluatingjobperformanceincludedcaseloadandcomplexityofcases.Thisshowsthatimprovingworkersenviromentsincreasesthoseworkersproductivity.Whichofthefollowing,iftrue,mostseriouslyweakenstheconclusionabove?(A)Onaverage,less-productiveemployeesspendnofewerhoursperdayattheirworkstationsthandotheirmore-productivepeers.(B)Unpleasantsurroundingsgiveemployeeslessmotivationtoworkhardthanmorepleasantsurroundingsdo.(C)Themore-productiveemployeesaregenerallyrewardedwithplea