2025年高考英语二轮复习：主题阅读 专项练习题（含答案）.docx

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2025年高考英语二轮复习：主题阅读专项练习题

专题一人与自我

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Weveallheardabouttechniquestogetusmorephysicallyactive-takethestairsandparkthecarabitfurtherfromyourdestination.NowastudyledbyDr.Buchmanfindsevensimplehouseworkmaybenefitbrainhealthfortheelderly.

Ourstudyshowsexerciseisaninexpensivewaytoimprovehealth.Italsoshowsexercisemayhaveaprotectiveeffectonthebrain，saysDr.Buchman.

Previousresearchfoundjust45minutesofwalkingthreedaysaweekactuallyincreasedbrainvolume.

Thenewstudyisunique.Dr.Buchmanwasabletoanalyzetheactualbrainsofthestudyparticipants.

Thestudylookedat454olderadultswhowereover70yearsoldwhentheresearchbegan.Ofthoseadults，191hadbehavioralsignsofdementia（痴呆）and263didnot.

Intheresearch，eachparticipantworeanactivitymonitorcalledanaccelerometer（加速度计）.Itmeasuredthoseparticipantsphysicalactivityaroundtheclock-everythingfromwalkingaroundthehousetoexerciseroutines.Researcherscollectedandevaluatedtendaysofmovementdataforeachparticipantandcalculatedthelevelsofdailymovement.

Thefindingsshowthathigherlevelsofdailymovementwerelinkedtobetterthinkingandmemoryskills.AndwhenDr.Buchmananalyzedbraintissueunderamicroscope，thisfindingturnedouttobethecaseevenforindividualswithatleastthreesignsofAlzheimersdisease（阿尔茨海默病）.EventhoughtheseindividualsmighthavebeendiagnosedwithAlzheimers，30percentofthemhadnormalcognition（认知），saysDr.Buchman.

Whyonepersonshowssignsofdementiaandanother，whohassimilardegenerative（退行的）changesinthebrain，doesnot，isamystery.ButDr.Buchmansaysthenewfindingssuggestthatphysicalactivitymaybeprotective，evenamongdevelopingAlzheimers.Itsortofmasksthesymptoms，hesays.ItsuggeststhatyoucanhavesomecontroloveryourbrainhealthevenifyoudonthavecontroloverdevelopingAlzheimers.

And，whi