文档介绍：1990年全国硕士研究生入学统一考试英语试题SectionII:・Readthepassagescarefullyandchoosethebestanswertoeachofthequestions・PutyourchoiceintheANSWERSHEET.(20points)Text1InMay1989,spaceshuttle"Atlantis"releasedinouterspacethespaceprobe“MegallanJwhichisnowonher15-monthandone-billion-kilometerflighttoVenus<;itistheonlyotherobjectinthesolarsystem,infact,esclosetoearth'ssize・Venushasasimilardensity,soitisprobablymadeofapproximatelythesamestuff,pletewithclouds・toearth,,Venusseemstojustifyitslong-heldnicknameof“earth'stwin/'s:Highoverheadinthecarbondioxide(CO2)thatpassesforairisalayerofclouds,perhaps10to20milesthick,whoselittledropsconsistmostlyofsulfuricacid(H2SO4).,howdidVenusgettobesoradicallydifferent:,Venusisavaluablelaboratoryforresearchersstudyingtheweatherandclimateofearth・1(hasnoearth\oceans,,Venustakes243earth-daystoturnonceonitsaxis,ingheatfromthesunisaddedanddistributedatamoreleisurely,observablepace・VenusissimilartoEarthin ・sizeanddensitydistancefromthesunhavingatmospherealloftheaboveThegreatestvalueinstudyingVenusshouldbeto ・[AlallowustovisitthereunderstandEarthbetterfindanewsourceofenergypromoteanewspaceprogramThemainideaofthispassageisabout ・problemsofspacetravelscientificmethodsinspaceexplorationtheimportanceofVenustoEarthconditionsonVenusText2TouristsweresuiprisedtoseeawomandrivingahugeorangetractordownoneofRome''spoliticalleadersandsomeofitsmaleunionchiefsaresaidtohavebeenevenmorepuzzledtoseethatthetractorwasfollowedbyabout200,000womeninaparadingprocessionthattookmorethanthre