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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;itisth
2、eonlyotherobjectinthesolarsystem,infact,thatevencomesclosetoearth’ssize.Venushasasimilardensity,soitisprobablymadeofapproximatelythesamestuff,andithasanatmosphere,completewithclouds.Itisalsotheclosestplanettoearth,andthusthemostsimilarindistancefromthesun.Inshort,Ven
3、usseemstojustifyitslong-heldnicknameof“earth’stwin.” ThesurfacetemperatureofVenusreachessome900F.Addedtothatisanatmosphericpressureabout90timesEarth's:Highoverheadinthecarbondioxidethatpassesforairisalayerofclouds,perhapsIOto20milesthick,whoselittledropsconsistmost
4、lyofsulfuricacid(H2SO4).Waterisallbutnonexistent. Bornwithsomanyfundamentalsimilaritiestoearth,howdidVenusgettobesoradicallydifferent:Itisnotjustanacademicmatter.Forallitsextremes,Venusisavaluablelaboratoryforresearchersstudyingtheweatherandclimateofearth.Ithasnoea
5、rth’soceans,sotheheattransportandothermechanismsaregreatlysimplified.Inaddition,theplanetVenustakes243earth-daystoturnonceonitsaxis,soincomingheatfromthesunisaddedanddistributedatamoreleisurely,observablepace.16.VenusissimilartoEarthin__A.sizeanddensityB.distancefrom
6、thesunC.havingatmosphereD.alloftheabove17.ThegreatestvalueinstudyingVenusshouldbeto__A.allowustovisitthereB.understandEarthbetterC.findanewsourceofenergyD.promoteanewspaceprogram18.Themainideaofthispassageisabout_A.problemsofspacetravelB.scientificmethodsinspaceexplo
7、rationC.theimportanceofVenustoEarthD.conditionsonVenusPassage2 TouristsweresurprisedtoseeawomandrivingahugeorangetractordownoneofRome’smainavenues.Italy'spoliticalleadersandsomeofitsmaleunionchiefsaresaidtohavebeenevenmorepuzzledtoseethatthetractorwasfollowedbyabout
8、200,OOOwomeninaparadingprocessionthattookmorethanthreehourstosnakethroughcentralRome. Shoutingslogans,wavingflagsanddancingtodrumb
