一篇向外宾介绍国家体育馆“鸟巢”的英语作文.
BeijingNationalStadium(Bird'sNest/OlympicStadium)
TheBeijingNationalStadium,alsoknownasthebird'snestwillbethemaintrackandfieldstadiumforthe2008SummerOlympicsandwillbehosttotheOpeningandClosingceremonies.In2002Governmentofficialsengagedarchitectsworldwideinadesigncompetition.PritzkerPrize-winningarchitectsHerzog&deMeuroncollaboratedwithArupSportandChinaArchitectureDesign&ResearchGrouptowinthecompetition.Thestadiumwillseatasmanyas100,000spectatorsduringtheOlympics,butthiswillbereducedto80,000afterthegames.IthasreplacedtheoriginalintendedvenueoftheGuangdongOlympicStadium.Thestadiumis330metreslongby220metreswide,andis69.2metrestall.The250,000squaremetre(grossfloorarea)stadiumistobebuiltwith36kmofunwrappedsteel,withacombinedweightof45,000tonnes.Thestadiumwillcostupto3.5billionyuan(422,873,850USD/325,395,593EUR).ThegroundwasbrokeninDecember2003,andconstructionstartedinMarch2004,butwashaltedbythehighconstructioncostinAugust2004.
Inthenewdesign,theroofofthestadiumhadbeenomittedfromthedesign.Expertssaythatthiswillmakethestadiumsafer,whilstreducingconstructioncosts.TheconstructionoftheOlympicbuildingswillcontinueonceagaininthebeginningof2005.
Indepth
Thestadium'sappearanceisoneofsynergy,withnodistinctionmadebetweenthefacadeandthesuperstructure.Thestructuralelementsmutuallysupporteachotherandconvergeintoagrid-likeformation-almostlikeabird'snestwithitsinterwoventwigs.Thespatialeffectofthestadiumisnovelandradical,yetsimpleandofanalmostarchaicimmediacy,thuscreatingauniquehistoricalland
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