【编者按】精品学习网小编总结归纳，职称英语2013年《卫生类》补全短文：TheInvaderofAIDS，希望对考生备考有帮助。
Theinvaderissmall,eveninthemicroscopicworldofbacteriaandviruses.Itisaliveonlyinthestrictestsenseoftheworld.Ithadnointelligence,nomeansofmobility,nomethodsofdefenseintheoutsideworld.Itisfragile,easilykilledbycommonhouseholdbleach(漂白剂)andevenshortperiodsoutsidethebody.46.ItistheAIDSvirus,anditisakiller.
AIDSisadisease,causedbyavirusthatbreaksdownpartofthebody’simmunesystem,leavingapersondefenselessagainstavarietyofunusuallife-threateningillnesses.47.
Thebody’simmunesystemnormallyprovidesustheweaponsweneedtowinconstantbattleswithinvadingviruses,bacteriaandotherinvadingorganisms.Hisdefensesystemispowerfulbutnotperfect.48.Wedonotevenknowthatanythingishappening.
ButtheAIDSvirusactsdifferentlyfromotherinvaders.Itattackstheverycellsthatnormallyprotectus.49.Itturnsourownwhitebloodcellsintomini-factoriesormakingmoreviruses.Eachtimeacellistakenover,itfillsupwiththousandsofnewviruses,diesandreleasesthoseviruses,withattackmorewhitebloodcells.Afterenoughattacks,ourdefensesystemisweakenedandcertaininfectionsandconditionsthatwenormallyfightoffwithnoproblemtakeadvantageofhisweakness.
50.Thepersondies.TherearenocureforAIDS,solearningaboutthediseaseandhowtoavoiditareouronlyweapons.
AYetitmaybethemostdangerousenemyinhumanhistory
BWhateverconditiondevelopsbecauseofAIDS,theoutcomeisalwaysthesame
CItgetsinsidethesecellsintominifactorsormakingmorevirus
DEachofthelettersinAIDSstandsforaword:AcquiredImmuneDeficiencySyndrome
EThepatientswhosufferfromAIDShavecharacteristicfeatures
FMostattacksaredetectedandbeatenoffwithease
(46)____(1.1)____(47)____(1.2)____(48)____(1.3)____(49)____(1.4)____(50)____(1.5)____
1.1
正确的答案是:A
1.2
正确的答案是:D
1.3来源：http://www.hxen.com
正确的答案是:F
1.4
正确的答案是:C
1.5
正确的答案是:B