专题18阅读理解科普类.doc

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1、三好高中生（公众号ID：sanhao-youke），为高中生提供名师公开课和精品资料专题18阅读理解（科普类）1.C【2019·全国I】Asdataandidentitytheftbecomesmoreandmorecommon,themarketisgrowingforbiometric(生物测量)technologies—likefingerprintscans—tokeepothersoutofprivatee-spaces.Atpresent,thesetechnologiesarestillexpensive,though.Researche

2、rsfromGeorgiaTechsaythattheyhavecomeupwithalow-costdevice(装置)thatgetsaroundthisproblem:asmartkeyboard.Thissmartkeyboardpreciselymeasuresthecadence(节奏)withwhichonetypesandthepressurefingersapplytoeachkey.Thekeyboardcouldofferastronglayerofsecuritybyanalyzingthingsliketheforceofau

3、ser'stypingandthetimebetweenkeypresses.Thesepatternsareuniquetoeachperson.Thus,thekeyboardcandeterminepeople'sidentities,andbyextension,whethertheyshouldbegivenaccesstothecomputerit'sconnectedto—regardlessofwhethersomeonegetsthepasswordright.Italsodoesn'trequireanewtypeoftechnol

4、ogythatpeoplearen'talreadyfamiliarwith.Everybodyusesakeyboardandeverybodytypesdifferently.Inastudydescribingthetechnology,theresearchershad100volunteerstypetheword“touch”fourtimesusingthesmartkeyboard.Datacollectedfromthedevicecouldbeusedtorecognizedifferentparticipantsbasedonho

5、wtheytyped,withverylowerrorrates.Theresearcherssaythatthekeyboardshouldbeprettystraightforwardtocommercializeandismostlymadeofinexpensive,plastic-likeparts.Theteamhopestomakeittomarketinthenearfuture.28.Whydotheresearchersdevelopthesmartkeyboard?A.Toreducepressureonkeys.B.Toimpr

6、oveaccuracyintypingC.Toreplacethepasswordsystem.D.Tocutthecostofe-spaceprotection.29.Whatmakestheinventionofthesmartkeyboardpossible？A.Computersaremucheasiertooperate.B.Fingerprintscanningtechniquesdevelopfast.C.Typingpatternsvaryfrompersontoperson.D.Datasecuritymeasuresareguara

7、nteed.30.Whatdotheresearchersexpectofthesmartkeyboard？all1osoisgitieocooll.A.It'llbeenvironment-friendly.B.It'llreachconsumerssoon.C.It'llbemadeofplasticsD.It'llhelpspeeduptyping.三好高中生，学习方法/提分干货/精品课程/考试真题，你需要的这里都有！三好高中生（公众号ID：sanhao-youke），为高中生提供名师公开课和精品资料31.Whereisthistextmostl

8、ikelyfrom?A.Adiary.B.AguidebookC.Anovel.D.Amaga