2022年職稱英語考試閱讀理解習(xí)題(二十二)2

2022年職稱英語考試閱讀理解習(xí)題(二十二)2Transientischemicattacks(TIAS),ormini-strokes,resultfromtemporaryinterruptionsofbloodflowtothebrain.Unlikefullstrokes,theypresentsymptomslastinganywherefromafewsecondsto24hours.Rarelydotheycausepermanentneurologicaldamage,buttheyareoftenprecursorsofamajorstroke.

“Ourmessageisquiteclear,”saysDr.RobertAdams,professorofneurologyattheMedicalCollegeofGeorgiainAugust.“TIAS，whilelessseverethanstrokesintheshortterm,arequitedangerousandneedaquickdiagnosisandtreatmentaswellasappropriatefollow-uptopreventfutureinjury.”

Unfortunately,mini-strokesaregreatlyunderdiagnosed.AstudyconductedfortheNationalStrokeAssociationindicatesthat2.5%ofalladultsaged18orolder(about4.9millionpeopleintheU.S.)haveexperiencedaconfirmedTIA.Anadditional1.2millionAmericansovertheageof45,thestudyshowed,havemostlikelysufferedamini-strokewithoutrealizingit.Thesefindingssuggestthatifthepublicknewhowtospotthesymptomsofstroke,especiallymini-strokes,andsoughtpromptmedicaltreatment,thousandsoflivescouldbesavedandmajordisabilitycouldbeavoided.

Theproblemisthatthesymptomsofamini-strokeareoftensubtleandpassing.Nonetheless,therearesignsyoucanlookoutfor:

*Numbnessorweaknessintheface,armorleg,especiallyononesideofthebody.

*Troubleseeinginoneorbotheyes.

*Confusionanddifficultyspeakingorunderstanding.

*Difficultywalking,dizzinessorlossofcoordination.

*Severeheadachewithnoknowncause.

Alongwiththesesymptoms,researchershaveidentifiedsomekeyindicatorsthatincreaseyourchancesofhavingafull-blownstrokeafteraTIA:ifyou’reover60,haveexperiencedsymptomslastinglongerthan10minutes,feelweakandhaveahistoryofdiabetes.

Aswithmanydiseases,youcanhelpyourselfbychangingyourlifestyle.Thefirstthingsyoushoulddoarequitsmoking,limityourintakeofalcoholtonomorethanadrinkortwoadayandincreaseyourphysicalactivity.Eventhosewhosufferfromhighbloodpressureordiabetescanimprovetheirodds—andminimizecomplicationsiftheydohaveastroke—bykeepingtheirillnessundercontrol.

Ifyouexperienceanyofthesymptoms,yourfirstcallshouldbetoyourdoctor.Itcouldbethecallthatsavesyourlife.

1.WhichofthefollowingisNOTtrueofmini-strokes?

A.Thecauseofthemremainsunidentified.

B.Theyseldomcausepermanentneurologicaldamage.

C.Theysymptomsofthemareoftenpassing.

D.Theyarenotunrelatedtomajorstrokes.

2.Topreventmini-strokesfromturningintomajorstrokes,itisimportantto

A.savethousandsoflives.

B.avoidmajordisability.

C.seekpromptmedicaltreatment.

D.preventfutureinjury.

3.Thepassageindicatesthatthesymptomsofmini-strokes

A.arealwayseasytospot.

B.arefrequentlyhardtorecognize.

C.usuallylastacoupleofdays.

D.canbynomeansbeavoided.

4.Allofthefollowingmaybesignsofmini-strokesEXCEPTfor

A.troubleseeinginoneeye.

B.numbnessintheface.

C.lossofcoordination.

D.severeheadachecausedbyexternalinjury.

5.Itcanbeinferredfromthepassagethatmini-strokesare