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GMAT阅读专题练习

GMAT阅读专题练习2017	对于语言的学习就是要经常用才不会觉得陌生，才能学好。下面是小编整理的GMAT阅读专题练习，希望对大家有用，更多消息请关注应届毕业生网。	Researcherscomparedthenumberoftoothfracturesinpresent-daycarnivoreswithtoothfracturesincarnivoresthatlived36,000to10,000yearsagoandthatwerepreservedintheRanchoLaBreatarpitsinLosAngeles.Thebreakagefrequenciesintheextinctspecieswerestrikinglyhigherthanthoseinthepresent-dayspecies.	Inconsideringpossibleexplanationsforthisfinding,theresearchersdismisseddemographicbiasbecauseolderindividualswerenotoverrepresentedinthefossilsamples.Theyrejectedpreservationalbiasbecauseatotalabsenceofbreakageintwoextinctspeciesdemonstratedthatthefractureswerenottheresultofabrasionwithinthepits.TheyruledoutlocalbiasbecausebreakagedataobtainedfromotherPleistocenesitesweresimilartotheLaBreadata.Theexplanationtheyconsidermostplausibleisbehavioraldifferencesbetweenextinctandpresent-daycarnivores&mdash;inparticular,morecontactbetweentheteethofpredatorsandthebonesofpreyduetomorethoroughconsumptionofcarcassesbytheextinctspecies.Suchthoroughcarcassconsumptionimpliestotheresearcherseitherthatpreyavailabilitywaslow,atleastseasonally,orthattherewasintensecompetitionoverkills(somethingkilled)andahighrateofcarcasstheftduetorelativelyhighpredatordensities.	231.Theprimarypurposeofthepassageisto	(A)presentseveralexplanationsforawell-knownfact	(B)suggestalternativemethodofresolvingadebate	(C)argueinfavorofacontroversialtheory	(D)questionthemethodologyusedinastudy(E)	(E)discusstheimplicationsofaresearchfinding	232.Thepassagesuggeststhat,comparedwithPleistocenecarnivoresinotherareas,PleistocenecarnivoresintheLaBreaarea	(A)includedthesamespecies,inapproximatelythesameproportions	(B)hadasimilarfrequencyoftoothfractures	(C)populatedtheLaBreamoredensely	(D)consumedtheirpreysmorethoroughly(B)	(E)foundithardertoobtainsufficiencyprey	233.Accordingtothepassage,theresearchersbelievesthatthehighfrequencyoftoothbreakageincarnivoresfoundatLaBreawascausedprimarilyby	(A)theagingprocessinindividualcarnivores	(B)contactbetweenthefo