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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;itistheonlyotherobjectintheso
2、larsystem,infact,thatevencomesclosetoearth’ssize.Venushasasimilardensity,soitisprobablymadeofapproximatelythesamestuff,andithasanatmosphere,completewithclouds.Itisalsotheclosestplanettoearth,andthusthemostsimilarindistancefromthesun.Inshort,Venusseemstojustifyitslong-heldnicknameof“earth’s
3、twin.” ThesurfacetemperatureofVenusreachessome900F.Addedtothatisanatmosphericpressureabout90timesEarth's:Highoverheadinthecarbondioxidethatpassesforairisalayerofclouds,perhapsIOto20milesthick,whoselittledropsconsistmostlyofsulfuricacid(H2SO4).Waterisallbutnonexistent. Bornwithsomanyfun
4、damentalsimilaritiestoearth,howdidVenusgettobesoradicallydifferent:Itisnotjustanacademicmatter.Forallitsextremes,Venusisavaluablelaboratoryforresearchersstudyingtheweatherandclimateofearth.Ithasnoearth’soceans,sotheheattransportandothermechanismsaregreatlysimplified.Inaddition,theplanetVen
5、ustakes243earth-daystoturnonceonitsaxis,soincomingheatfromthesunisaddedanddistributedatamoreleisurely,observablepace.16.VenusissimilartoEarthin__A.sizeanddensityB.distancefromthesunC.havingatmosphereD.alloftheabove17.ThegreatestvalueinstudyingVenusshouldbeto__A.allowustovisitthereB.underst
6、andEarthbetterC.findanewsourceofenergyD.promoteanewspaceprogram18.Themainideaofthispassageisabout_A.problemsofspacetravelB.scientificmethodsinspaceexplorationC.theimportanceofVenustoEarthD.conditionsonVenusPassage2 TouristsweresurprisedtoseeawomandrivingahugeorangetractordownoneofRome’sma
7、inavenues.Italy'spoliticalleadersandsomeofitsmaleunionchiefsaresaidtohavebeenevenmorepuzzledtoseethatthetractorwasfollowedbyabout200,OOOwomeninaparadingprocessionthattookmorethanthreehourstosnakethroughcentralRome. Shoutingslogans,wavingflagsanddancingtodrumb
