英语专四真题.docx
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英语专四真题.docx
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2000英语专四
CLOZE
Thedifferencebetweenaliquidandagasisobvious(26)theconditionsoftemperatureandpressurecommonlyfoundatthesurfaceoftheEarth.Aliquidcanbekeptinanopencontainerand(27)ittothelevelofafreesurface.Agasformsnofreesurfacebut(28)todiffusethroughoutthespaceavailable;itmust(29)bekeptinaclosedcontainer,as(30)aplanet’satmosphere.Thedistinctionwasaprominentfeatureofearlytheories(31)thephasesofmatter.Inthenineteenthcentury,forexample,onetheorymaintainedthataliquidcouldbe“dissolved”inavaporwithoutlosingitsidentity,andanothertheoryheldthatthetwophasesare(32)differentkindsofmolecules(分子).Thetheoriesnowprevailing(33)aquitedifferentapproachbyemphasizingwhatliquidsandgaseshaveincommon.Theyarebothformsofmatterthathavenopermanentstructure,andtheybothfloweasily.Theyarefluids.
The(34)similarlyofliquidsandgasesbecomesclearlyapparentwhenthetemperatureandpressureareraisedsomewhat.(35)aclosedcontainerpartiallyfilledwithaliquidisheated.Theliquidexpandsor(36),becomeslessdense;someofitevaporates.(37),thevaporabovetheliquidsurfacebecomesdenserastheevaporatedmoleculesareaddedtoit.Thecombinationoftemperatureandpressure(38)thedensitiesbecomeequalis(39)thecriticalpoint.Abovethecriticalpointtheliquidandthegascannolongerbe(40);thereisasingle,undifferentiatedfluidphaseofuniformdensity.
26.A.inB.onC.underD.beyond
27.A.fillsB.befilledC.fillingD.tofill
28.A.intendsB.tendsC.inclinesD.contends
29.A.howeverB.neverthelessC.soD.therefore
30.A.intheeventofB.inthecaseof
C.withaviewtoD.withreferenceto
31.A.havingdescribedB.described
C.describingD.tohavedescribed
32.A.madeupofB.consistedof
C.constitutedofD.madefrom
33.A.applyB.adaptC.takeD.conduct
34.A.elementaryB.crucialC.rudimentaryD.fundamental
35.A.SupposeB.TosupposeC.BeingsupposedD.Supposed
36.A.inawordB.inthemeantimeC.inotherwordsD.inthatcase
37.A.SimilarlyB.IncontrastC.FurthermoreD.Instead
38.A.onthatB.onwhichC.atthatD.atwhich
39.A.knownB.definedC.calledD.referredto
40.A.classifiedB.recognizedC.categorizedD.distinguished
PartⅤGRAMMARANDVOCABULARY
41.Acutehearinghelpsmostanimalssensetheapproachofthunderstormslongbeforepeople___.
A.doB.hearC.dothemD.hearingit
42.Thisisanillnessthatcanresultintotalblindness___leftuntreated.
A.AfterB.IfC.SinceD.unless
43.Thecentralprovinceshavefloodsinsomeyears,and___.
A.droughtsinothersB.droughtsareothers
C.whileotherdroughtsD.othersindrought
44.Dohelpyourselftosomefruit,___you?
A.can’tB.don’tC.wouldn’tD.won’t
45.There___nothingmorefordiscussion,themeetingcametoanendhalfanhourearlier.
A.tobeB.tohavebeenC.beingD.be
46.Mymothercan’tget___becauseshehasrheumatism(风湿病).
A.aboutB.onC.throughD.in
47.Iwasverymuchput___byMark’srudebehavior;itreallyannoyedme.
A.overB.offC.upD.by
48.You___Jimanythingaboutit.Itwasnoneofhisbusiness.
A.needn’thavetoldB.needn’ttell
C.mustn’thavetoldD.mustn’ttell
49.Allofuswouldhaveenjoyedthepartymuchmoreifthere___quitesuchacrowdofpeoplethere.
A.weren’tB.hasn’tbeenC.hadn’tbeenD.wouldn’tbe
50.Firmsthatusecomputershavefoundthatthenumberofstaff___isneedforqualitycontrolcanbesubstantiallyreduced
A.whoseB.asC.whatD.that
51.___atinthisway,thepresenteconomicsituationdoesn’tseemsogloomy.
A.LookingB.LookedC.HavinglookedD.Tolook
52.Manypeopleare___toinsectbites,andsomeevenhavetogotohospital.
A.InsensitiveB.AllergicC.SensibleD.infected
53.Whenyou’redrivingonamotorway,youmustobeythesignstellingyoutogetintotheright___.
A.wayB.trackC.roadD.lane
54.Themotoristhadto___toavoidknockingtheoldwomandowninthemiddleoftheroad.
A.SwerveB.TwistC.DepartD.swing
55.Inwinterdrivershavetroublestoppingtheircarsfrom___onicyroads.
A.SkatingB.SkiddingC.SlidingD.slipping
56.Thisprojectwould___ahugeincreasei
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