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1、2009年英语专业四级真题及其答案 PARTIIICLOZE[15MIN] Decidewhichofthechoicesgivenbelowwouldbestcompletethepassageifinsertedinthecorrespondingblanks.MarkthebestchoiceforeachblankonAnswerSheetTwo. Scientistsaroundtheworldareracingtolearnhowtorapidlydiagnose,treatandstopthespreadofanew,dead
2、lydisease.SARS--SevereAcuteRespiratorySyndrome---was(31)____forthefirsttimeinFebruary2003inHanoi,(32)_____sincethenhasinfectedmorethan1,600peoplein15countries,killing63.Atthis(33)_____,therearemorequestionsthananswerssurroundingthedisease. Symptomsstart(34)_____afeverover10
3、0.4degreesF,chills,headacheorbody(35)____.Withinaweek,thepatienthasadrycough,whichmight(36)_____toshortnessofbreath.In10%to20%ofcases,patientsrequire(37)_____ventilationtobreathe.About3.5%diefromthedisease.Symptoms(38)____beginintwotosevendays,butsomereportssuggestit(39)____
4、takeaslongas10days.Scientistsarecloseto(40)____alabtesttodiagnoseSARS.Inthemeantime,itisdiagnosedbyitssymptoms.Thereisnoevidence(41)____antibioticsoranti-viralmedicineshelp,(42)_____doctorscanofferonlysupportivecare.PatientswithSARSarekeptinisolationtoreducetheriskof(43)____
5、Scientistsaren'tsureyet,butsomeresearchersthinkit'sa(44)____discoveredcoronavirus,thefamilyofvirusesthatcausesomecommoncolds. Mostcasesappeartohavebeenpassed(45)____dropletsexpelledwheninfectedpatientscoughorsneeze.Familymembersofinfectedpeopleandmedicalworkerswhocare(46)__
6、__themhavebeenmostlikelyto(47)____theillness.ButrecentdevelopmentsinHongKongsuggestthatthe(48)____mightspreadthroughair,orthatthevirusmight(49)____fortwotothreehoursondoorknobsorother(50)____.Healthexpertssayitisunlikely,though,thatsharinganelevatorbrieflywithaninfectedperso
7、nwouldbeenoughtopassthevirus. (31)A.detectedB.caughtC.disclosedD.revealed (32)A.butB.andC.orD.yet (33)A.timeB.pointC.aspectD.instance (34)A.fromB.overC.uponD.with (35)A.hurtB.soreC.achesD.feelings (36)A.processB.advanceC.progressD.convert (37)A.automaticB.artificialC.
8、mechanicalD.controlled (38)A.regularlyB.ordinarilyC.traditionallyD.general
