2012江苏专转本英语真题及答案.doc

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)PassageOneQuestions1to5arebasedonthefollowingpassage.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.cureAIDSB.killtheAIDSvirusC.preventtheAIDSvirusfromspreadingD.producenewmedicinesforAIDS2.WhentheAIDSvirusenterstheblood,itisreproducedby________.A.theinsideofthevirusitselfB.anybloodcellsinthebodyC.theCD4proteinD.thegeneticmaterialofT4cells3TheAIDSvirusconnectstoclonedproteinsinsteadoftotherealonesbecause________.A.theclonedproteinsstayontheT4cellsB.theclonedproteinscanfloatfreelyinthebloodC.itconnectstoclonedproteinsmoreeffectivelythantotherealonesD.theclonedproteinsaremadebygeneticengineeringmethods4.WhichofthefollowingstatementsisNOTtrue?A.Thenewtechniquehasbeentestedinlabs.B.Thenewtechni