2014中考英语阅读理解及答案：你的双手干净吗

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1、2014中考英语阅读理解及答案：你的双手干净吗　　Lookcloselyatyourhands.Aretheyclean?Itdoesn’tmatterhowmanytimesyouwashyourhands,tinymicrobes(微生物)stillstayonthem.Butdon’tworry.Mostmicrobesdon’tharmyou.　　Nowscientistssaythemicrobesonourhandscouldbeusedinasurprisingway;fightingcrime,Accordingtoarece

2、ntsurveymicrobesaswellasfingerprints(指纹)couldbeusedtoindentifythecriminal.　　Everyonehashisownsetofmicrobesonthehands.Thatistosay,ifyouandyourbestfriendwereabletoseeandcompareallthemicrobesonyourhands,yourhandsprobablywouldlookdifferent.Somemicrobesonlyshowuponyourhandswhile

3、othersliveonlyonyourfriend’shands.　　Whenyouworkonacomputeryouleavethemicrobesfromyourhandsonthekeyboard.Thescientistscaneasilytelltheownerofthekeyboardbylookingatthemicrobesonit.Evenifyoudon’tleaveyourfingerprintsbehind,yourmicrobesmaygiveyouaway.　　NoahFierer,ascientist,say

4、s.“Youcanonlycleanafingerprint,butyoucan’tsterilize(使无菌)asurfacejustbywiping(擦)itoff,”Hesaysthatscientistshavealotmoreworktodobeforethemicrobeisusedasausefultool.　　46.Accordingtothepassage,_______couldbeusedtoidentifythecriminal.　　A.fingerprintsB.scientists’hands　　C.microbe

5、sD.fingerprintsandmicrobesonpeople’shands　　47.Paragraph3tellsusthat________.　　A.ourhandslooksimilarB.themicrobeswillmakethekeyboarddirty.　　C.weshouldcomparehandsoftenD.wehaveourownsetsofmicrobes.　　48.Whenyouworkoncomputer,themicrobes________.　　A.juststayonourhandsB.alsostay

6、onthekeyboard　　C.willdoharmtoyouD.willdisappear　　49.FromNoahFiererweknowthat________.　　A.fingerprintsarenolongerusefulinfightingcrime　　B.microbescanbefoundoneveryone’shands.　　C.unlikemicrobefingerprintscanbecleanedifpeoplewipethem　　D.themicrobeisusedasausefultool　　50.What’s

7、thebesttitleofthepassage?　　A.MicrobesMayTellWhoYouAreB.ScientistsSayEveryoneHasMicrobes　　C.NoahFiercerDoesResearchIntoMicrobesD.FingerprintsHelpCatchCriminals　　主旨大意：文章介绍了手上的细菌也可以用来辨别人。　　46.D【解析】细节理解题。根据文章第一段的最后一句“Accordingtoarecentsurveymicrobesaswellasfingerprints(指纹)could

8、beusedtoindentifythecriminal.”可知正确答案是D。　　47.D【解析】细节理解题。根据第一段的第三句“Thisfirstcameouto