江苏专用高考英语二轮复习 专题限时检测二十一阅读理解C篇专练二Word文档下载推荐.docx
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years.ButDrOzanyanandDrScullyuseacomplexversionthatcanrecordtheamountofpressureappliedindifferentplacesassomeonewalksacrossit.Thesemeasurementsformapatternuniquetothewalker.DrOzanyanandDrScullythereforeturned,asisnowcommonforanythingtodowithpatternrecognition,toanArtificialIntelligencesystemthatusesmachinelearningtorecognisesuchpatterns.
Itseemstowork.Inastudypublishedearlierthisyearthetworesearcherstestedtheirsystemonadatabaseoffootstepstroddenby127differentpeople.Theyfoundthatitserrorrateinidentifyingwhowaswhowasamere0.7%.AndDrScullysaysthatevenwithoutadatabaseoffootstepstoworkwiththesystemcandeterminesomeone'
ssex—womenandmen,withwideandnarrowpelvises(骨盆)respectively,walkindifferentways—andguess,withreasonableaccuracy,asubject'
sage.
Amatbasedgaitrecognitionsystemhastheadvantagethatitwouldworkinanylightingconditions—evenpitchdarkness.Andthoughitmightfailtoidentifysomeoneif,say,shewaswearingstilettosandhadbeenenteredintothedatabasewhilewearingtrainers,itwouldbeveryhardtofoolitbyimitatingthegaitofanindividualwhowasallowedadmissiontoaparticularplace.
ThelatestphaseofDrOzanyan'
sandDrScully'
sprojectisaredesignofthemat.Theoldmatscontainedindividualpressuresensors.Thenewonescontainopticalfibres(光纤).Lightemittingdiodes(二极管)distributedalongtwoneighbouringedgesofamattransmitlightintothefibres.Sensorsontheoppositeedges(andthustheoppositeendsoftheopticalfibres)measurehowmuchofthatlightisreceived.Anypressureappliedtopartofthematcausesadistortion(变形)inthefibresandaconsequentchangeintheamountoflighttransmitted.Boththelocationandamountofchangecanbeplottedandanalyzedbythemachinelearningsystem.
Dr.Ozanyansaysthattheteamhavebuiltademonstrationfibreopticmat,twometerslongandametrewide,usingmaterialsthatcost£100($130).Theyarenowtalkingtocompaniesaboutcommercializingit.Oneapplicationmightbeinhealthcare,particularlyfortheelderly.Afibreopticmatinstalledinanursinghomeoranoldperson'
sownresidencecouldmonitorchangesinanindividual'
sgaitthatwarncertainillnesses.Thatwouldprovideearlywarningofsomeonebeingatgreaterriskoffallingover,say,oroftheircognitionbecomingdamaged.
Gaitanalysismightalsobeusedasasecuritymeasureintheworkplace,monitoringaccesstorestrictedareas,suchaspartsofmilitarybases,serverfarmsorlaboratoriesdealingwithharmfulmaterials.Inthesecases,employeeswouldneedtoagreetotheirgaitsbeingscanned,justastheywouldagreetothescanningoftheirfacesorretinasforopticalsecuritysystems.
Perhapsthemostfascinatinguseofgaitrecognitionmats,though,wouldbeinpublicplaces,suchasairports.Forthattowork,thefootstepsofthosetoberecognisedwouldneedtohavebeenstoredinadatabase,whichwouldbehardertoarrangethanthecollectionofmugshotsandfingerprintsthatexistingairportsecuritysystemsrelyon.Somepeople,however,mightvolunteerforit.Manyaircreworpreregisteredfrequentflyerswouldwelcomeanythingthatspeededuponeofthemosttiresomepartsofmoderntravel.
语篇解读:
本文主要介绍了一种新的识别方法:
步态识别。
1.Camerabasedgaitrecognitionfailstocomeintowideuse,because________.
a.it'
snoteasytofindthecameras
b.fingerprintrecognitionisstillpopular
c.sometimesthecamerascanbecovered
d.it'
sawasteofmoneytofixtheequipment
e.goodlightingconditionscan'
tbeguaranteed
f.it'
sdifficulttosetupthesystem
A.a、c、f B.b、d、e
C.c、d、fD.c、e、f
解析:
选D 细节理解题。
根据第二段的一开始的三句话可知,虽然人们已经很擅长利用摄像机和计算机来分析人们的步态,但是将这些知识转化为实际的识别系统可能很难。
主要有这样几个原因:
camerasarehardtosetup,requiregoodlighting,mayhavetheirviewblockedbyotherpeople。
2.WhichofthefollowingstatementsisTRUEaccordingtoParagraphs6-8?
A.Thenewmatsfunctiongreatlywithindividualpressuresensorsbuiltin.
B.Thenewmatswillbelikelytoworkbetterwithenoughpressure.
C.Theelderlyarecuredoftheirdiseaseswiththemonitorofthefibreoptic.
D.Restrictedareasareaccessibletothosewiththeirgaitsscannedbeforehand.
根据第八段第二句“Inthesecases,employeeswouldneedtoagreetotheirgaitsbeingscanned,...”可知在这些场合,员工(的步态)需要和(之前)扫描过的步态一致。
即:
事先扫描过步态的人可以进入禁区。
3.Whatdoes“it”refertoinParagraph5?
A.Thematbasedgaitrecognitionsystem.
B.Thegaitstoredinthedatabase.
C.Theadvantageofworkinginanylightcondition.
D.Theadmissiontoaparticularplace.
选A 代词指代题。
阅读第五段的内容可知这个“it”是表示指代的,代替上文中所提到过的名词短语“Amatbasedgaitrecognitionsystem”。
4.What'
sthebesttitleofthepassage?
A.Listentoyourfootsteps
B.Applaudpatternrecognition
C.Lovethewayyouwalk
D.Betterthematsyoustepon
选C 标题归纳题。
本文主要介绍了一种新的安全识别方法:
这种识别方法可以用在公共场所,而且比传统的指纹识别方法速度更快,受到人们的欢迎。
所以你走路的姿态将来可以成为识别你的一种方法,所以要珍惜、爱你自己的步态。
用“Lovethewayyouwalk”作为标题,能够表达文章的主题。
B
苏、锡、常、镇二模)AlarmingheadlinessuggestoneinfourteenagegirlsintheUKareselfharming,motivatedbysexdiscriminationandpressurestolookgoodinaselfie(自拍)society.ThesestoriescomefromareportbyUKcharityTheChildren'
sSociety,basedonanongoingsurveyof11,000childrenaged14.Amongthegirls,22percentsaidtheyhadselfharmedwhileboys9percent.
Butwhilethetermselfharmimprovesimagesofteenagerscuttingthemselves,thatmay,thankfully,beonlythemostextremeendofabroaderrange.Inthissurvey,participantsweremerelyaskediftheyhad“hurtthemselvesonpurposeinanyway”.
Somecouldhaveansweredyesforthingslikepunching(击拳)awallindissatisfactionordeliberatelygettingfallingdowndrunk.Otherscouldhavethoughtthequestionincludedmentalhurt.Suchselfdestructivebehaviourwouldnaturallybeofconcerntoparents,butwouldn'
tbethatunusualforteenagers.MaxDavie,ahealthpromotionofficer,doesbelievethatselfharmamongteensissomewhatontherise—butthinksthequestioninthissurveywasnotspecificenoughtorevealitsrealuniversality.
Thelatestheadlinesjoinanongoingaccountaboutamentalhealthcrisisintoday'
syouth.Someblamecutbacksinsocialservices,whileotherspointtoalooseningofsexualstandardsputtingteensatrisk.Forthosecautiousofnewtechnologies,itissocialmediaorthelatestpopularcomputergames.
Butsuchreportsalsodeservesomeskepticism.Claimsofhighratesofdepressionareusuallybasedonsurveyswithveryloose,nonmedicalcriteria.Thankfully,clinicaldepressionisstillrareinthisagegroup.
Infact,adifferentandregularlyrepeatedsurveyhasfoundnochangein11to15yearolds'
happinesswithlifeasawholebetween1995and2020.Nordidtheirsatisfactionwiththeirappearancechange,whichmakesitstrangetoblametheselfieculturefortheapparentselfharmincrease.Thissurvey,calledUnderstandingSociety,evenfoundimprovementinhappinesswithfamilyandschoolworkoverthatperiod.ThesemoreoptimisticfindingswerealsointhelatestChildren'
sSocietyreportbutwereburiedatthebottomoftheirpressrelease.
Daviethinkstheriseinselfharmmaynotbeduetoariseinunhappiness,butsimplythatthisagegroupnowseesselfharmasamoreculturallyacceptablewaytoexpressextremesufferings.“Itmaybethatpreviouslypeopledidn'
tknowthatthiswassomethingyoucoulddo.Ifpeoplearetalkingaboutsomethingandnormalizingit,it'
sprobablymorelikelythattheirpeerswilldoit.”
Ifthatisthecase,itisallthemorereasonnottomakeselfharmseemmorecommonthanitreallyis.
本文主要谈论了青少年自残这种社会现象。
5.InresponsetothesurveyreportedbyTheChildren'
sSociety,theauthorbelieves________.
A.thesurveyisunscientificasitaskedveryspecificquestions
B.theselfdestructivebehaviorforteensisworryingtoparents
C.thenumberofselfharmingteensisalarmingbecauseofselfies
D.theimagesofteens'
selfharmarebecomingmorespecific
选B 细节理解题。
根据第三段第三句“Suchselfdestructivebehaviourwouldnaturallybeofconcerntoparents,butwouldn'
tbethatunusualforteenagers.”可知,这种自我毁灭性的行为自然会引起父母的关注,但对于青少年来说也不算罕见。
6.WhatdoesMaxDaviethinkofselfharmamongteenagers?
A.Thesituationistooworrying.
B.Theriseissomewhatbeneficial.
C.Theproblemisactuallywidespread.
D.Thephenomenonisnotsouniversal.
根据第三段最后一句“MaxDavie,ahealthpromotionofficer...revealitsrealuniversality.”可知,克斯·
戴维斯(MaxDavie)确实认为青少年的自我伤害有所上升,但认为本次调查中的问题不够具体,无法揭示其真正的普遍性。
7.WhatcanweknowfromthesurveycalledUnderstandingSociety?
A.Teenagersinthepastlivedahappierlife.