《大学英语II》期末预测试卷No.3(附答案)

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1、重庆交通学院《大学英语II》期末预测试卷No.3PartIListeningComprehension(20%)（略）PartIIReadingComprehension(40%)Directions:Thereare4passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C),andD).Youshoulddecideonthebestchoiceandmarkth

2、ecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.Passage1Questions31to35arebasedonthefollowingpassage:Everyyearabout10,000peopleintheUnitedStatesdiefromsevereburns.Severeburnsallowthelossofwaterfromthebody.Oncetheprotectivecoveringoftheskinisgone,thebodyisalsoingr

3、eatdangerofbacterialinfection.Whensomeonehasbeenburned,themostimportantfirststepistoclosethewound.Thebestwaytoclosethewoundistotransplant(移植)skinfromanotherpartofthevictim’sbody.Unfortunately,someburnsaffectsuchalargeareathattransplantingthepatient’sownskinisnotpossible.Fortunately,

4、chemicalengineershaverecentlydevelopedanewproducttohelpburnvictims.Thisproductisartificial(人造的)skin.Artificialskincanquicklycoverandprotectlargeareasofburnedskin.Artificialskinisatwo-layermaterialmadeoftissue(组织)fromcattle.Itisonlytwohundredthsofaninchthick.Thismaterialguardsagainst

5、infectionandthelossoffluidswhilethepatient’sskingrowsback.Oversmallwounds,artificialskiniseventuallyshed(脱落)asthenaturalskinunderneathheals.Overlargerwounds,theartificialskinlastsupto40daysbeforeitbreaksdownandanewonemustbeused.Artificialskinmayhelpsavethelivesofthousandsofburnvicti

6、ms?3l.Whatisthedamageofsevereburnstoburnvictims?A.Thebodyismorelikelytobeinfectedwithbacteria.B.Theyleavesomescars(疤)ontheskin.C.Thetissueunderneaththeskinisdamaged.D.Theyupsetbloodcirculation(循环).32.Whensomeonehasbeenburned,itisofvitalimportanceto________.A.removethedamagedskinB.ta

7、kesomemedicinetoeasethepainC.cleantheinfectedwoundD.closethewound33.Whyisitnecessarytotransplantartificialskininsteadoftheirownskinforsomeburnvictims?A.Becauseartificialskinismorenutritious.B.Becauseitcostslesstotransplantartificialskin.C.Becausetheburnwoundsareverylarge.9D.Becauset

8、ransplantingartific