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1、考研英语真题(1990-2005)1990lReadingPassage1 InMayl989,spaceshuttle"Atlantis"releasedinouterspacethespaceprobe“Magellan”,whichisnowonher15-monthandone-billion-kilometerflighttoVenus.Anewphaseinspaceexplorationhasbegun. TheplanetVenusisonlyslightlysmallerthanEart
2、h;itistheonlyotherobjectinthesolarsystem,infact,thatevencomesclosetoearth’ssize.Venushasasimilardensity,soitisprobablymadeofapproximatelythesamestuff,andithasanatmosphere,completewithclouds.Itisalsotheclosestplanettoearth,andthusthemostsimilarindistancefromth
3、esun.Inshort,Venusseemstojustifyitslong-heldnicknameof“earth’stwin.” ThesurfacetemperatureofVenusreachessome900F.Addedtothatisanatmosphericpressureabout90timesEarth's:Highoverheadinthecarbondioxidethatpassesforairisalayerofclouds,perhapsIOto20milesthick,who
4、selittledropsconsistmostlyofsulfuricacid(H2SO4).Waterisallbutnonexistent. Bornwithsomanyfundamentalsimilaritiestoearth,howdidVenusgettobesoradicallydifferent:Itisnotjustanacademicmatter.Forallitsextremes,Venusisavaluablelaboratoryforresearchersstudyingthewe
5、atherandclimateofearth.Ithasnoearth’soceans,sotheheattransportandothermechanismsaregreatlysimplified.Inaddition,theplanetVenustakes243earth-daystoturnonceonitsaxis,soincomingheatfromthesunisaddedanddistributedatamoreleisurely,observablepace.16.Venusissimilart
6、oEarthin__A.sizeanddensityB.distancefromthesunC.havingatmosphereD.alloftheabove17.ThegreatestvalueinstudyingVenusshouldbeto__A.allowustovisitthereB.understandEarthbetterC.findanewsourceofenergyD.promoteanewspaceprogram18.Themainideaofthispassageisabout_A.prob
7、lemsofspacetravelB.scientificmethodsinspaceexplorationC.theimportanceofVenustoEarthD.conditionsonVenusPassage2 TouristsweresurprisedtoseeawomandrivingahugeorangetractordownoneofRome’smainavenues.Italy'spoliticalleadersandsomeofitsmaleunionchiefsaresaidtohave
8、beenevenmorepuzzledtoseethatthetractorwasfollowedbyabout200,OOOwomeninaparadingprocessionthattookmorethanthreehourstosnakethroughcentralRome. Shoutingslogans,wavingflagsanddancingtodrumb