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1、湖南株洲市（荷塘区）2016高考英语阅读理解二轮训练及答案【科普知识型…阅读理解】HousedinMilan,oneofEurope'sdirtiestcities,LeonardodaVinci'smasterpieceTheLastSupperstillfacesathreatfromairpollution,researcherssay,despitepreventativemeasuresthathavesignificantlydecreasedpollutantsinthechurchwherethefamouspaintingisondis
2、play.In2009,Italianauthoritiesinstalledaheating,ventilation（通风）andairconditioningsystemtoprotectthepaintingfromMilan'spollutedair.Toseewhetherthesystemcouldimproveairquality,ateamofresearchersledbyConstantinosSioutas,aprofessorofcivilandenvironmentalengineeringattheUniversityofSo
3、uthernCalifornia,placedtwoairqualitymonitorsinsidethechurchforayeartocollectsamplesfromaroundpainting・ResultsshowedthelevelsoffineandcoarsepaHiculateswerereducednearthepaintingby88percentand94percent,respectively,comparedwiththecorrespondingoutdoorlevels.“It'saspectacularreductio
4、n,”Sioutassaidinastatement."Itis,frankly,veryimpressive：AlthoughtheresearchersapplaudedthesuccessfuldecreaseinparticulatesarounddaVinci'spainting,theywarnedthatindoorsourcesofpollutionmaystillposeathreattothepricelesspainting.Fattylipids（油月旨）fromtheskinofcustomersinthechurchappea
5、redinsignificantquantitiesaroundthepainting,despitethefactthatvisitorsgettingaccesstotheartworkarestrictlyregulated.Onlyafewvisitorsareallowedinsidethechurchatatime,andtheyenterthebuildingandcanstayforonly15minuteseach・However,fattylipidsfromvisitors1skincancombinewithdustintheai
6、randpollutethepaintingiftheycomeincontactwithit,saysstudyresearcherNancyDaheroftheUniversityofSouthernCalifornia.Evenpreviousrestorationsofthepaintingmaypolluteitssurface,Dahersaid.Tinyparticulatesofthewaxappliedduringearlyrepaireffortscanbeemittedfromthepainting,getintotheairand
7、tarnish（使失去光泽）thepaintinginthesamemannerasthefattylipids.Theresearchersnotedthattheirairsampleanalysiscouldbeusedasapointofreferenceforfuturestudiesaimedatprotectingvaluableartworkandartefacts.1•Whatdoestheunderlinedword"particulates、、inParagraph2probablymean?A.Thesmallestpartsof
8、achemicalsubstance・B•Thingsdirtierthanus
