文档介绍：1990年全国硕士研究生入学考试英语试题及参照答案
SectionIStructureandVocabulary
Ineachquestion,decidewhichofthefourchoicesgivenwillmostsuue
Hewasknockeddownbyacarandbadly________.
injured
damaged
harmed
ruined
SectionIIReadingComprehension
choiceintheANSWERSHEET.(20points)Text1
InMay1989,spaceshuttle"Atlantis"releasedinouterspacethespaceprobe"Megallan,"whichis
nowonher15-monthandone-billion-
hasbegun.
TheplanetVenusisonlyslightlysmallerthanEarth;itistheonlyotherobjectinthesolarsystem,
infact,thatevencomesclosetoearth',soitisprobablymadeof
approximatelythesamestuff,andithasanatmosphere,
planettoearth,,Venusseemstojustify
itslong-heldnicknameof"earth'stwin."
about90timesEarth's:Highoverheadinthecarbondioxide(CO2)thatpassesforairisalayerof
clouds,perhaps10to20milesthick,whoselittledropsconsistmostlyofsulfuricacid(H2SO4).
Waterisallbutnonexistent.
Bornwithsomanyfundamentalsimilaritiestoearth,howdidVenusgettobesoradically
different:
,Venusisavaluablelaboratoryfor
'soceans,
sotheheat
,theplanetVenustakes243
earth-daystoturnonceonitsaxis,soincomingheatfromthesunisaddedanddistributedata
moreleisurely,observablepace.
VenusissimilartoEarthin________.[A]sizeanddensity
[B]distancefromthesun[C]havingatmosphere
[D]alloftheabove
ThegreatestvalueinstudyingVenusshouldbeto________.[A]allowustovisitthere
[B]understandEarthbetter
[C