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1、Unit2PoemsⅠ.阅读理解ATheNazcaLinesareaseriesoflargeancientgeoglyphs(地画)intheNazcaDesert,insouthernPeru.Theyarerangingfromgeometricpatternstodrawingsofdifferentanimalsandstylizedhuman-likeforms.Theancientlinescanonlybetrulytakeninfromhighintheair,leavinggenerationspuzzledastohowthese
2、preciseworkscouldhavebeencompletedlongbeforethedocumentedinventionofhumanflight.TheLineswerefirstspottedwhencommercialairlinesbeganflyingacrossthePeruvianDesertinthe1920s.Whobuiltthemandwhatwastheirpurpose?Aretheyroads,starpointers,maybeevenagiganticmap?Ifthepeoplewholivedhere2,
3、000yearsagohadonlyasimpletechnology,howdidtheymanagetoconstructsuchprecisefigures?Didtheyhaveaplan?Thesemarkingsarelikeavastpuzzle.TheNazcaLinesarethemostoutstandinggroupofgeoglyphsintheworld.TherearealsohugegeoglyphsinEgypt,Malta,UnitedStates(MississippiandCalifornia),Chile,Bol
4、iviaandinothercountries.ButtheNazcageoglyphs,becauseoftheirnumbers,characteristics,dimensionsandculturalcontinuityastheyweremadeandremadethroughoutacertainhistoryperiod,formthemostimpressivearcheological(考古学的)group.TheNazcaPlainisuniqueforitsabilitytopreservethemarkingsuponit,du
5、etothecombinationoftheclimate(oneofthedriestonEarth,withonlytwentyminutesofrainfallperyear)andtheflat,stonygroundwhichminimizestheeffectofthewindatgroundlevel.Withnodustorsandtocovertheplainandlittlerainorwindtoerode(腐蚀)it,linesdrawnheretendtostaydrawn.Thesefactors,combinedwitht
6、heexistenceoflighter-colouredsubsoilbeneaththedesertsurface,provideavastwritingpadthatissuitedtotheartistwhowantstoleavehismarketernal.1.WhatcanweknowabouttheNazcaLinesfromthefirsttwoparagraphs?A.Theywerebuiltasabigmap.B.Theywereformedbynature.C.Theyareancientlinesincaves.D.They
7、arehugemarkingsinadesert.2.HowmanyfactorsmaketheNazcaLinesthemostimpressive?A.One.B.Two.C.Three.D.Four.3.WhyaretheNazcaLineswellpreserved?A.Becauseofthewindatgroundlevel.B.Becauseoftheexistenceofsoftsoil.C.Becauseoftheclimateandgeography.D.Becauseofthethicksandonthetop.4.Whatdoe
8、stheunderlinedword“eternal”probablymean?A.Non-s
