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1、专业四级_(TEM-42009)Scientistsaroundtheworldareracingtolearnhowtorapidlydiagnose,treatandstopthespreadofanew,deadlydisease.SARS—SevereAcuteRespiratorySyndrome—was(31)forthefirsttimeinFebruary2003inHanoi,(32)sincethenhasinfectedmorethan1,600peoplein15countries,killing63.Atthis(33),ther
2、earemorequestionsthananswerssurroundingthedisease.Symptomsstart(34)afeverover100.4degreesF,chills,headacheorbody(35).Withinaweek,thepatienthasadrycough,whichmight(36)toshortnessofbreath.In10%to20%ofcases,patientsrequire(37)ventilationtobreathe.About3.5%diefromthedisease.Symptoms(3
3、8)beginintwotosevendays,butsomereportssuggestit(39)takeaslongas10days.Scientistsarecloseto(40)alabtesttodiagnoseSARS.Inthemeantime,itisdiagnosedbyitssymptoms.Thereisnoevidence(41)antibiotics,oranti-viralmedicineshelp,(42)doctorscanofferonlysupportivecare.PatientswithSARSarekeptini
4、solationtoreducetheriskof(43).Scientistsaren’tsureyet,butsomeresearchersthinkit’sa(44)discoveredcoronavirus,thefamilyofvirusesthatcausesomecommoncolds.Mostcasesappeartohavebeenpassed(45)dropletsexpelledwheninfectedpatientscoughorsneeze.Familymembersofinfectedpeopleandmedicalworker
5、swhocare(46)themhavebeenmostlikelyto(47)theillness.ButrecentdevelopmentsinHongKongsuggestthatthe(48)mightspreadthroughair,orthatthevirusmight(49)fortwotothreehoursondoorknobsorother(50).Healthexpertssayitisunlikely,though,thatsharinganelevatorbrieflywithaninfectedpersonwouldbeenou
6、ghtopassthevirus.31.A.detectedB.caughtC.disclosedD.revealed32.A.butB.andC.orD.yet33.A.timeB.pointC.aspectD.instance34.A.fromB.overC.uponD.with35.A.hurtB.soreC.achesD.feelings36.A.processB.advanceC.progressD.convert37.A.automaticB.artificialC.mechanicalD.controlled38.A.regularlyB.o
7、rdinarilyC.traditionallyD.generally39.A.willB.mightC.shouldD.must40.A.cultivatingB.fosteringC.developingD.designing41.A.whichB.thatC.whetherD.what42.A.soB.butC.stillD.yet43.A.communicationB.transportationC.transformationD.transmission44.A.latelyB.newbornC.newlyD.renewed45.A.underB
8、.throughC.beneathD.from46.A.forB.
