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词数:318 话题:古代地画 文体:说明文
TheNazcaLinesareaseriesoflargeancientgeoglyphs(地画)intheNazcaDesert,insouthernPeru.Itisrangingfromgeometricpatternstodrawingsofdifferentanimalsandstylizedhuman-likeforms.Theancientlinescanonlybetrulytakeninfromhighintheair,leavinggenerationspuzzledastohowthesepreciseworkscouldhavebeencompletedlongbeforethedocumentedinventionofhumanflight.
ThelineswerefirstspottedwhencommercialairlinesbeganflyingacrossthePeruvianDesertinthe1920s.Whobuiltthemandwhatwastheirpurpose?Aretheyroads,starpointers,maybeevenagiganticmap?Ifthepeoplewholivedhere2,000yearsagohadonlyasimpletechnology,howdidtheymanagetoconstructsuchprecisefigures?Didtheyhaveaplan?Thesemarkingsarelikeavastpuzzle.
TheNazcaLinesarethemostoutstandinggroupofgeoglyphsintheworld.TherearealsohugegeoglyphsinEgypt,Malta,UnitedStates(MississippiandCalifornia),Chile,Boliviaandinothercountries.ButtheNazcageoglyphs,becauseoftheirnumbers,characteristics,dimensionsandculturalcontinuityastheyweremadeandremadethroughoutacertainhistoryperiod,formthemostimpressivearcheological(考古学的)group.
TheNazcaplainisuniqueforitsabilitytopreservethemarkingsuponit,duetothecombinationoftheclimate(oneofthedriestonEarth,withonlytwentyminutesofrainfallperyear)andtheflat,stonygroundwhichminimizestheeffectofthewindatgroundlevel.Withnodustorsandtocovertheplainandlittlerainorwindtoerode(腐蚀)it,linesdrawnheretendtostaydrawn.Thesefactors,combinedwiththeexistenceoflighter-colouredsubsoilbeneaththedesertsurface,provideavastwritingpadthatissuitedtotheartistwhowantstoleavehismarketernal.
1.WhatcanweknowabouttheNazcaLinesfromthefirsttwoparagraphs?
A.Theywerebuiltasabigmap.
B.Theywereformedbynature.
C.Theyareancientlinesincaves.
D.Theyarehugemarkingsinadesert.
2.HowmanyfactorsmaketheNazcaLinesthemostimpressive?
A.One. B.Two.
C.Three. D.Four.
3.WhyaretheNazcaLineswellpreserved?
A.Becauseofthewindatgroundlevel.
B.Becauseoftheexistenceofsoftsoil.
C.Becauseoftheclimateandgeography.
D.Becauseofthethicksandonthetop.
4.Whatdoestheunderlinedword“eternal”probablymean?
A.Non-stop. B.Everlasting.
C.Real-life. D.High-end.
