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  【SomewonderfullycreativeusesofX-rayshavebeenintheworldofart.Butthemostimpressiveoneistouncoverwhathasbeencoveredup.DetailsunfoldedbyanX-rayofapaintingcan'tbeseenanyotherway.Forexampleinthepast】

  SomewonderfullycreativeusesofX-rayshavebeenintheworldofart.Butthemostimpressiveoneistouncoverwhathasbeencoveredup.DetailsunfoldedbyanX-rayofapaintingcan'tbeseenanyotherway.Forexampleinthepastpaintingswereoftenrepairedifsmallpiecesofpaintfelloffthecanvas(帆布).Theserepairscannotbeseenjustbylookingatthepainting.IttakesanX-raytodiscoverwheretherepairshavebeenmade.

  AnX-rayofapaintingisoneofthebestwaystotellifitwascreatedbyafamouspainterorifitisaforgery(赝品).IfthereisaquestionastowhetheranoldmasterhaspaintedacertainpaintingornotX-raysaremadeandcomparedtothoseofpaintingsthatareknowntobeoriginal.Ifthebrushstrokes(笔迹)forexampleareshowntobetotallydifferentthaninotherworkdonebyacertainartistthenthepaintingisprovedtobeafakecopy.

  SincemodernpaintsareusuallymadefromdifferentmaterialsthanpaintsofhundredsofyearsagotheimagetheyleaveonanX-rayfilmlooksdifferent.ThisisanotherwayX-rayscanbeusedtospotaforgery.Amodemartistwilltrytomakeaforgerylookhundredsofyearsoldbypaintingdirtyvarnishonitorbyusingartificialmeanstogetthevarnishtolookcracked.TothenakedeyetheforgerymaylookoldbutwhenacarefulstudyoftheX-rayimageismadethedeceptionisobvious.

  Itwascommonmanyyearsagoforanartisttofinishapaintingdecideitwasn'tanygoodandpaintacompletelydifferentpictureontopofit.Orartistswouldpaintoverothers'work—itwastheirversionofrecycling.TakinganX-rayistheonlywaytofindoutifthereisapictureunderneaththepictureyouseewithyoureyes.Sometimesmuseumswillbemoreinterestedinthepaintingbeneaththantheoneontopandwillrestoretheolderonebyhavingthetoplayerpainstakinglyremoved.

  1.Whatisthemainpurposeofthearticle?

  A.Toprovideinformationtopolicewhoarelookingforstolenart.

  B.Topersuadeartdealerstocheckforfakecopiesbeforesellingart.

  C.Toexplainhowmoderntechnologycanbeappliedinuniqueways.

  D.Tohelpartistsrestoredamagedartworktoitsoriginalappearance.

  2.Accordingtothepassage,X-raysareusedto______.

  A.makerepairsonpaintingsinthepast

  B.ident

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2020-04-11 21:37
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  1.C2.B3.C4.A分析:本文通过文章通过介绍X-ray在油画辨别侦察方面的作用,说明现代科技X-ray是如何以独特的方式应用于生活。1.纵观全文,文章通过介绍X-ray在油画辨别方面的作用,就是...

2020-04-11 21:39:45

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