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1、partiiicloze[15min] decidewhichofthechoicesgivenbelowwouldbestcompletethepassageifinsertedinthecorrespondingblanks.markthebestchoiceforeachblankonanswersheettwo. Scientistsaroundtheworldareracingtolearnhowtorapidlydiagnose,treatandstopthespreadofanew,deadlydisease.sars--severeacuteres
2、piratorysyndrome---was(31)____forthefirsttimeinfebruary2003inhanoi,(32)_____sincethenhasinfectedmorethan1,600peoplein15countries,killing63.atthis(33)_____,therearemorequestionsthananswerssurroundingthedisease. symptomsstart(34)_____afeverover100.4degreesf,chills,headacheorbody(35)____.
3、withinaweek,thepatienthasadrycough,whichmight(36)_____toshortnessofbreath.in10%to20%ofcases,patientsrequire(37)_____ventilationtobreathe.about3.5%diefromthedisease.symptoms(38)____beginintwotosevendays,butsomereportssuggestit(39)____takeaslongas10days.scientistsarecloseto(40)____alabtes
4、ttodiagnosesars.inthemeantime,itisdiagnosedbyitssymptoms.thereisnoevidence(41)____antibioticsoranti-viralmedicineshelp,(42)_____doctorscanofferonlysupportivecare.patientswithsarsarekeptinisolationtoreducetheriskof(43)____scientistsaren'tsureyet,butsomeresearchersthinkit'sa(44)____discov
5、eredcoronavirus,thefamilyofvirusesthatcausesomecommoncolds. mostcasesappeartohavebeenpassed(45)____dropletsexpelledwheninfectedpatientscoughorsneeze.familymembersofinfectedpeopleandmedicalworkerswhocare(46)____themhavebeenmostlikelyto(47)____theillness.butrecentdevelopmentsinhongkongsu
6、ggestthatthe(48)____mightspreadthroughair,orthatthevirusmight(49)____fortwotothreehoursondoorknobsorother(50)____.healthexpertssayitisunlikely,though,thatsharinganelevatorbrieflywithaninfectedpersonwouldbeenoughtopassthevirus. (31)a.detectedb.caughtc.disclosedd.revealed (32)a.butb.and
7、c.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.mechanicald.controlled (38)a.regularlyb.ordinarilyc.traditionallyd.generally (39)a.willb.mi
