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1、考研英语真题(1990-2005)1990lReadingPassage1 InMayl989,spaceshuttle"Atlantis"releasedinouterspacethespaceprobe“Magellan”,whichisnowonher15-monthandone-billion-kilometerflighttoVenus.Anewphaseinspaceexplorationhasbegun. TheplanetVenusisonlyslightlysmallerthanEarth;i
2、tistheonlyotherobjectinthesolarsystem,infact,thatevencomesclosetoearth’ssize.Venushasasimilardensity,soitisprobablymadeofapproximatelythesamestuff,andithasanatmosphere,completewithclouds.Itisalsotheclosestplanettoearth,andthusthemostsimilarindistancefromthesun.I
3、nshort,Venusseemstojustifyitslong-heldnicknameof“earth’stwin.” ThesurfacetemperatureofVenusreachessome900F.Addedtothatisanatmosphericpressureabout90timesEarth's:Highoverheadinthecarbondioxidethatpassesforairisalayerofclouds,perhapsIOto20milesthick,whoselittled
4、ropsconsistmostlyofsulfuricacid(H2SO4).Waterisallbutnonexistent. Bornwithsomanyfundamentalsimilaritiestoearth,howdidVenusgettobesoradicallydifferent:Itisnotjustanacademicmatter.Forallitsextremes,Venusisavaluablelaboratoryforresearchersstudyingtheweatherandclim
5、ateofearth.Ithasnoearth’soceans,sotheheattransportandothermechanismsaregreatlysimplified.Inaddition,theplanetVenustakes243earth-daystoturnonceonitsaxis,soincomingheatfromthesunisaddedanddistributedatamoreleisurely,observablepace.16.VenusissimilartoEarthin__A.siz
6、eanddensityB.distancefromthesunC.havingatmosphereD.alloftheabove17.ThegreatestvalueinstudyingVenusshouldbeto__A.allowustovisitthereB.understandEarthbetterC.findanewsourceofenergyD.promoteanewspaceprogram18.Themainideaofthispassageisabout_A.problemsofspacetravelB
7、.scientificmethodsinspaceexplorationC.theimportanceofVenustoEarthD.conditionsonVenusPassage2 TouristsweresurprisedtoseeawomandrivingahugeorangetractordownoneofRome’smainavenues.Italy'spoliticalleadersandsomeofitsmaleunionchiefsaresaidtohavebeenevenmorepuzzledto
8、seethatthetractorwasfollowedbyabout200,OOOwomeninaparadingprocessionthattookmorethanthreehourstosnakethroughcentralRome. Shoutingslogans,wavingflagsanddancingtodrumb