（大致）最好详细点,（有两段,讲的不是一个东西）greatbarrierreefTheGreatBarrierReefisthelargestcoralreefsystemintheworldcomposedofover2,900individualreefsand900islands.ThereefislocatedintheCoralSea,o

　　（大致）最好详细点,（有两段,讲的不是一个东西）

　　greatbarrierreef

　　TheGreatBarrierReefisthelargestcoralreefsystemintheworldcomposedofover2,900individualreefsand900islands.ThereefislocatedintheCoralSea,offthecoastofQueenslandinnortheastAustralia.

　　TheGreatBarrierReefcanbeseenfromouterspaceandistheworld'sbiggestsinglestructuremadebylivingorganisms.Thisreefstructureiscomposedofandbuiltbybillionsoftinyorganisms,knownascoralpolyps.TheGreatBarrierReefsupportsawidediversityoflife,andwasselectedasaWorldHeritageSitein1981.CNNhaslabelleditoneofthe7naturalwondersoftheworld.TheQueenslandNationalTrusthasnameditastateiconofQueensland.

　　AlargepartofthereefisprotectedbytheGreatBarrierReefMarinePark,whichhelpstolimittheimpactofhumanuse,suchasoverfishingandtourism.Otherenvironmentalpressurestothereefanditsecosystemincludewaterqualityfromrunoff,climatechangeaccompaniedbymasscoralbleaching,andcyclicoutbreaksofthecrown-of-thornsstarfish.

　　TheTerracottaWarriorswerediscoveredbysomefarmers,locatedinXian,ShaanxiProvince,inMarch1974,whilediggingawell.Accordingtotheon-the-spotmeasurementafterexcavation,Vault1,anundergroundarchitecturalcomplex,is5metersdeep,230meterslongeasttowest,and62meterswide,northtosouth,coveringanareaofover14,000squaremeters.

　　Thepotteryarmy,compactinorganizationandmagnificentinbattlearrays,ispresentedonagrandscale.Thepotterywarriors,well-proportionedandexquisitelyshaped,haveeachadistinctiveindividualexpression:somebitingtheirlips,someglaringorgazing,somemeditatingwiththeirheadslowered,orwithtroubledlooks,othersappearingnaiveoranimated.Withthearmorbuckledon,thesoldierhashiscrossbowunderthearm,andarrowquiverslungovertheshoulder.Thegeneral,armoredandkeepingahandonthetipofswordhandle,maintainsanawesomebearing.Stronganddynamic,thehorserearsitshead,bristling.ThegrandeurandsuperbworkmanshipfullydemonstratethegreattalentandvisionoftheChinesenation.

　　In1980,anothertwobronzechariotswithridersandhorsesoflargersizewereunearthed.Thechariotseachw