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1、选修7U21一、阅读理解ABeijing’sForbiddenCityisaplacefullofwonder.Fromitsthousandsofroomstoitsmanybeautifulartifacts,there’snowonderit’soneofChina’smostpopulartouristdestinations.Butevenmorethan600yearsafteritwasbuilt,it’sstillmanagingtoserveupsurprises.SinceitwasbuiltduringtheMingDynasty,it’sestimatedtha
2、ttheForbiddenCityhassurvivedmorethan200earthquakes.Andwhilemoststructuresaren’tmadetosurvivenaturaldisasters,letaloneonesbuilthundredsofyearsago,itseemsthattheForbiddenCitywasbuilttowithstandanything.ArecenttelevisiondocumentarybyUKbroadcasterChannel4exploredtheskillsoftheancientbuilding’sdesign
3、ers.AgroupofChinesecarpentersandengineerswereshownbuildingascalemodel(成比例模型)ofoneoftheForbiddenCity’spalaces,atonefifthofthesize.ToshowhowstrongancientChinesearchitecturereallyis,themodelwasputtothetest.Itwassubjectedtoasimulated(模拟的)earthquakeof9.5ontheRichterscale–equivalenttothelargesteverrec
4、ordedquake–andsurvived.Insteadoffallingapart,themodelwasjustmovedgentlyduringthetest.Accordingtoexperts,theanswertotheForbiddenCity’sstrength,aswellasotherancientChinesestructures’,liesindougong–acenturies-oldbuildingmethodinventedinChina.Thisisthenameforspecialbracketsonbuildings.Despitebeinghe
5、ldtogetherwithoutanynailsorglue,thebracketsareperfectatkeepingstructurestogetherwhentheweathergetsrough.“Dougongdesignisanimportantearthquake-resistantfeatureofclassicalChinesestructuresbecausetheframeworkchangesinshapewhenunderpressure,muchliketheshockabsorbers(减震器)ofacar,”accordingtoChineseNat
6、ionalGeography.“AncientChinesecraftsmencreatedstructuresthatwerebothenduringandaesthetically(在美学方面)pleasingusingdougong,revealingtheiradvancedunderstandingofmathematics,architecture,materials,andstructuralscience.”TheForbiddenCitydrawsvisitorsbecauseofitsrichhistoryandculturalsignificance,butper
7、hapsitshouldaddonemorethingtoitslistofattractions:earthquakeshelter.1.Whatisthearticlemainlyabout?A.WhathasmadetheForbiddenCityapopulartouristdestination.B.WhathashelpedtheForbiddenCitysurvivesomanyearthquakes.C.Thecharacter
