三级英语历年真题名家详解(人大红宝书) - 副本 (2)

北京地区成人本科学士学位英语统一考试：北京地区成人本科学士学位英语统一考试《历年真题名家详解》中国人民大学刘本政。分享名师智慧，体验真题精髓。。详尽解析1992年～2007年的三级英语真题。阅读，完型均配有全文翻译。揭示命题角度，总结归纳应试技能及题解的方法北京地区成人本科学士学位英语统一考试：北京地区成人本科学士学位英语统一考试2011年05月07日PartIReadingComprehension(30%)Directions:Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandblackenthecorrespondingletterontheAnswerSheet。Passage1QuestionsIto5arebasedonthefollowingpassage:Spending50minuteswithacellphoneclosetoyourearisenoughtochangebraincellactivityinthepartofthebrainclosesttotheantenna(天线).Butwhetherthatcausesanyharmisnotclear,scientistsattheNationalInstituteofHealthsaidataconferencelastmonth,addingthatthestudywillnotlikelysettleconcernsofalinkbetweencellphonesandbraincancer.“Whatweshowedisglucose(葡萄糖)metabolism(代谢)(asignofbrainactivity)increasesinthebraininpeoplewhowereexposedtoacellphoneintheareaclosesttotheantenna,”saidDr.NoraVolkowoftheNIH,whosestudywaspublishedintheJournaloftheAmericanMedicalAssociation.(76)Thestudywasmeanttoexaminehowthebrainreactstoelectromagneticfieldscausedbywirelessphonesignals。Volkowsaidshewassurprisedthattheweakelectromagneticradiation(电磁辐射)fromcellphonescouldaffectbrainactivity,butshesaidthefindingsdonotshedanylightonwhethercellphonescausecancer.“Thisstudydoesnotinanywayindicatethat.Whatthestudydoesistoshowthehumanbrainissensitivetoelectromagneticradiationfromcellphoneexposures。”Useofthedeviceshasincreaseddramaticallysincetheywereintroducedintheearly1980s,withabout5billioncellphonesnowinuseworldwide。Somestudieshavelinkedcellphoneexposuretoanincreasedriskofbraincancers,butalargestudybutheWorldHealthOrganizationdidnotofferaclearanswertothis.Volkow’steamstudied47peoplewhohadtheirbrainexaminedwhileacellphonewasturnedonfor50minutesandanotherwhilethephonewasturnedoff.Whiletherewasnocompletechangeinbrainmetabolism,theyfounda7percentincreaseinbrainmetabolismintheregionclosesttothecellphoneantennawhenthephonewason。(77)Expertssaidtheresultswereinteresting,buturgedthattheybeunderstoodwithgreatcare.“Althoughthebiologicalsignificance,ifany,ofincreasedglucosemetabolismfromtoomuchcellphoneexposureisunknown,theresultsrequirefurtherinvestigation,”HenryLaioftheUniversityofWashingtonintheU.S.andDr.LennartHardellofUniversityHospitalinSweden,wroteinanarticleinJAMA.“Muchhastobedonetofurtherinvestigateandunderstandtheseeffects。”Theywrote。1.Accordingtothepassage,whichofthefollowingisTRUE?A.Cellphoneuseisdangerous。B.Cellphoneusecausescancer。北京地区成人本科学士学位英语统一考试：。D.Thereareabout5billioncellphoneusersintheworldrightnow。2.DoctorVolkowwasastonishedbecause______。A.herresearchhasshedlightonherunderstandingofcellphoneB.shefoundthatcellphoneexposureisharmfultohumanbrainC.shefoundthatusingacellphoneforabout50minutescouldinfluenceorchangebrainactivityD.humanbrainisnotresponsivetoelectromagneticradiation3.Accordingtothepassage,cellphoneswerelaunched_______。A.inthelate1970sB.between1980and1985B.inthelate1980sD.intheearly1990s4.Whatdoestheword“that”standforinthesecondparagraph?A.Brainactivity。B.Herresearchfindings。C.Thefactthatcellphoneusemaycausecancer。D.Herresearchprogress。5.Whichofthefollowingisanappropriatetitleforthispassage?A.CellPhoneRadiation:IsItHarmful?B.CellPhoneRadiati0n:IsItUseful?C.CellPhoneRadiation:IsItHealthy?D.CellPhoneRadiation:IsItWeak?Passage2Questions6to10arebasedonthefollowingpassage:Humanbeingshavealwayshadanabilitytoattendtoseveralthingsatonce.(78)Noriselectronicmultitaskingentirelynew:We’vebeendrivingwhilelisteningtocarradiossincetheybecamepopularinthe1930s.butthereisnodoubtthatmultitaskinghasreachedakindofwarpspeedintheeraofWeb-enabledcomputers,whenithasbecomeroutinetoconductseveralIM(及时通讯)conversations,watchTVandusethecomputerallatonce。Butwhat’stheimpactofthismediaconsumption?Andhowarethesemultitaskingdeviceschanginghowkidslearn,reasonandcommunicatewithoneanother?Socialscientistsandeducatorsarejustbeginningtodealwiththesequestions,buttheresearchersalreadyhavesomestrongopinions。(79)Althoughmultitaskingkidsmaybebetterpreparedinsomewaysfortoday’sfast-pacedworkplaced,Manyscientistsarepositivelyalarmedbythetrend。Kidsthatareinstantmessagingwhiledoinghomework,playinggamesonlineandwatchingTV,aren’tgoingtodowellinthelongrun。Onthepositiveside,multitaskingstudentstendtobeextraordinarilygoodatfindingandusinginformation.Andprobablybecausemodernchildhoodcentersaroundvisual(视觉的)ratherthanprintmedia,theyareespeciallyskilledatanalyzingvisualdataandimages。Manyeducatorsandpsychologistssayparentsneedtoactivelyensurethattheirteenagersbreakfreeofuncontrollableengagementwithscreensandspendtimeinthe北京地区成人本科学士学位英语统一考试：—agrowingchallengenotjustbecausetechnologyofferssuchahandyoptionbutbecausesomanyteenagersandcollegestudentssayovercommitted(任务过量的)schedulesdrivesmuchoftheirmultitasking。Justasimportantisforparentsandeducat