决战阅读之说明文-调查研究类1 配套讲义（自测篇）.docxVIP

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决战阅读之巅说明文1.0武林秘籍之调查研究类1

【Reading3:2019全国Ⅲ·D】

①Monkeysseemtohaveawaywithnumbers.

②AteamofresearcherstrainedthreeRhesusmonkeystoassociate26clearlydifferentsymbolsconsistingofnumbersandselectiveletterswith0-25dropsofwaterorjuiceasareward.Theresearchersthentestedhowthemonkeyscombined—oradded—thesymbolstogetthereward.

③Here’showHarvardMedicalSchoolscientistMargaretLivingstone,wholedtheteam,describedtheexperiment:Intheircagesthemonkeyswereprovidedwithtouchscreens.Ononepartofthescreen,asymbolwouldappear,andontheothersidetwosymbolsinsideacirclewereshown.Forexample,thenumber7wouldflashononesideofthescreenandtheotherendwouldhave9and8.Ifthemonkeystouchedtheleftsideofthescreentheywouldberewardedwithsevendropsofwaterorjuice;iftheywentforthecircle,theywouldberewardedwiththesumofthenumbers—17inthisexample.

④Afterrunninghundredsoftests,theresearchersnotedthatthemonkeyswouldgoforthehighervaluesmorethanhalfthetime,indicatingthattheywereperformingacalculation,notjustmemorizingthevalueofeachcombination.

⑤Whentheteamexaminedtheresultsoftheexperimentmoreclosely,theynoticedthatthemonkeystendedtounderestimate(低估)asumcomparedwithasinglesymbolwhenthetwowerecloseinvalue—sometimeschoosing,forexample,a13overthesumof8and6.Theunderestimationwassystematic:Whenaddingtwonumbers,themonkeysalwayspaidattentiontothelargerofthetwo,andthenaddedonlyafraction(小部分)ofthesmallernumbertoit.

⑥“Thisindicatesthatthereisacertainwayquantityisrepresentedintheirbrains,”Dr.Livingstonesays.“Butinthisexperimentwhattheyredoingispayingmoreattentiontothebignumberthanthelittleone.”

8.Whatdidtheresearchersdotothemonkeysbeforetestingthem?

A.Theyfedthem.