2025年考研英语真题模拟冲刺试卷（含答案）
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PartICloze
Directions:Readthefollowingtextcarefullyandchoosethebestword(orwords)foreachblank.MarkyouranswerontheAnswerSheetbyblackeningthecorrespondingletterinthebrackets.
Thehumanbrainisanincrediblycomplexorgan,responsiblefornearlyeveryfunctionthatdefinesourexistence.(1)_______scientistshavemaderemarkableprogressinunderstandingitsstructureandfunction,muchaboutthebrainremainsamystery.Oneofthemostintriguingmysteriesishowthebraingeneratesconsciousness—oursubjectiveexperienceoftheworld,includingthoughts,feelings,andsensations.Fordecades,researchershavetriedtounravelthisenigma,employingvariousmethodstostudythebrainsactivity.
Advancedimagingtechniques,suchasfunctionalMagneticResonanceImaging(fMRI)andPositronEmissionTomography(PET),haveprovidedvaluableinsights.Thesetechnologiesallowscientiststoobservebrainactivityinreal-timewhileindividualsperformspecifictasksorevenrest.Studiesusingthesetoolshaveidentifiedcertainbrainregionsthatareconsistentlyactiveduringconsciousexperiencesbutshowdifferentpatternsofactivitywhenthebrainisinanon-consciousstate,suchasduringdeepsleep.However,thesecorrelationsdonotfullyexplainthe*nature*ofconsciousness.Itisstillunclearhowdiscreteneuralsignalstranslateintotherichinnerworldweallinhabit.
Anotherapproachinvolvesstudyingbraininjuriesandneurologicalconditions.Patientswithspecificdamagetocertainareasofthebrainoftenexhibituniquechangesintheirconsciousexperience,suchasvisualhallucinationsorchangesinpersonality.Thesecasesprovidecrucialcluesabouttherelationshipbetweenbrainstructureandconsciousawareness.Forinstance,theworkofneuroscientistBenjaminLibetonthelibeteffectsuggestedthatthereisaprecursorpotentialforconsciousint