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江苏省2012年普通高校专转本统一英语考试
第一卷（共100分）
PartIReadingComprehension(共20题，每题2分，共40分)
PassageOne
Questions1to5arebasedonthefollowingpassage.
AmericanresearchershavedevelopedatechniquethatmaybecomeanimportanttoolinfightingAIDS.ThetechniquestopstheAIDSvirusfromattackingitstarget-cellsinthebody'sdefensesystem.WhenAIDSvirusenterstheblood,itsearchesforbloodcellscalledT4lymphocytes	（淋巴细胞）.ThevirusconnectstotheoutsideofT4lymphocytes,thenforcesitswayinside.Thereitdirectsthecells'genetic	（基因的）materialtoproducecopiesoftheAIDSvirus.ThisishowAIDSspreads.ResearchersthinktheymaybeabletostopAIDSfromspreadingbypreventingvirusfromconnectingtoT4cells.WhenAIDSvirusfindsaT4cell,itactuallyconnectstoapartofthecellcalledCD4protein.ResearcherswanttofoolthevirusbyputtingcopiesorclonesoftheCD4proteinintotheblood.ThiswaytheAIDSviruswillconnecttotheclonedproteininsteadoftherealones.Scientistsusethegeneticengineeringmethodstomaketheclones.NormallyaCD4proteinremainsontheT4cellatalltimes.TheAIDSvirusmustgotoit.Inanewtechnique,however,theclonedCD4proteinisnotconnectedtoacell.Itfloatsfreely,somanymorecanbeputintothebloodtokeeptheAIDSvirusawayfromrealCD4proteinsonT4cells.OnereportsaystheAIDSvirusconnectstotheclonedproteinsjustaseffectivelyastorealprotein.Thatreportwasbasedontestswithbloodcellsgrowninlabs.Thetechniqueisjustnowbeginningtobetestedinanimals.Ifsuccessful,itmaybetestedinhumanswithinayear.
1.Thenewtechniquecan________.
A.cureAIDS	B.killtheAIDSvirus
C.preventtheAIDSvirusfromspreading	D.producenewmedicinesforAIDS
2.WhentheAIDSvirusenterstheblood,itisreproducedby________.
A.theinsideofthevirusitself	B.anybloodcellsinthebody
C.theCD4protein	D.thegeneticmaterialofT4cells
3TheAIDSvirusconnectstoclonedproteinsinsteadoftotherealonesbecause________.
A.	theclonedproteinsstayontheT4cells
B.	theclonedproteinscanfloatfreelyintheblood
C.	itconnectstoclonedproteinsmoreeffectivelythantotherealones
D.	theclonedproteinsaremadebygeneticengineeringmethods
4.WhichofthefollowingstatementsisNOTtrue?
A.Thenewtechniquehasbee