北京地區(qū)英語學位2011年上半年5月試題及答案

1、北京地區(qū)成人本科學士北京地區(qū)成人本科學士學位英語學位英語統(tǒng)一考試統(tǒng)一考試2011.52011.5月試題月試題PartIReadingComprehension（30%）Directions：Therearethreepassagesinthispart.Eachpassageisfollowedbysomequestionsunfinishedstatements.Feachofthemtherearefourchoicesmarked

2、A，B，CD.YoushoulddecideonthebestchoiceblackenthecrespondingletterontheAnswerSheet.Passage1QuestionsIto5arebasedonthefollowingpassage：Spending50minuteswithacellphoneclosetoyourearisenoughtochangebraincellactivityintheparto

3、fthebrainclosesttotheantenna（天線）。Butwhetherthatcausesanyharmisnotclear，scientistsattheNationalInstituteofHealthsaidataconferencelastmonth，addingthatthestudywillnotlikelysettleconcernsofalinkbetweencellphonesbraincancer.“

4、Whatweshowedisglucose（葡萄糖）metabolism（代謝）（asignofbrainactivity）increasesinthebraininpeoplewhowereexposedtoacellphoneintheareaclosesttotheantenna，“saidDr.NaVolkowoftheNIH，whosestudywaspublishedintheJournaloftheAmericanMedi

5、calAssociation.（76）Thestudywasmeanttoexaminehowthebrainreactstoelectromagicfieldscausedbywirelessphonesignals.Volkowsaidshewassurprisedthattheweakelectromagicradiation（電磁輻射）fromcellphonescouldaffectbrainactivity，butshesa

6、idthefindingsdonotshedanylightonwhethercellphonescausecancer.“Thisstudydoesnotinanywayindicatethat.Whatthestudydoesistoshowthehumanbrainissensitivetoelectromagicradiationfromcellphoneexposures.”Useofthedeviceshasincrease

7、ddramaticallysincetheywereintroducedintheearlyl980s，withabout5billioncellphonesnowinusewldwide.Somestudieshavelinkedcellphoneexposuretoanincreasedriskofbraincancers.butalargestudybytheWldHealthganizationdidnotofferaclear

8、answertothis.Volkow‘steamstudied47peoplewhohadtheirbrainexaminedwhileacellphonewasturnedonf50minutesanotherwhilethephonewasturnedoff.Whiletherewasnocompletechangeinbrainmetabolism，theyfounda7percentincreaseinbrainmetabol

9、ismintheregionclosesttothecellphoneantennawhenthephonewason.（77）Expertssaidtheresultswereinteresting，buturgedthattheybeunderstoodwithgreatcare.“Althoughthebiologicalsignificance，ifany，ofincreasedglucosemetabolismfromtoom

10、uchcellphoneexposureisunknown，theresultsrequirefurtherinvestigation，”HenryLaioftheUniversityofWashingtonintheU.S.Dr.LennartHardellofUniversityHospitalinSweden，wroteinanarticleinJAMA.“Muchhastobedonetofurtherinvestigateun

11、dersttheseeffects.”theywrote.Passage2Questions6to10arebasedonthefollowingpassage：6.Whatisthemainideaofthispassage？Humanbeingshavealwayshadanabilitytoattendtoseveralthingsatonce.（78）Niselectronicmultitaskingentirelynew：We

12、vebeendrivingwhile1isteningtocarradiossincetheybecamepopularinthel930s.ButthereisnodoubtthatmultitaskinghasreachedakindofwarpspeedintheeraofWebenabledcomputers，whenithasbecomeroutinetoconductseveralIM（即時通訊）conversations，

13、watchTVusethecomputerallatonce.Butwhat‘stheimpactofthismediaconsumption？howarethesemultitaskingdeviceschanginghowkidslearn，reasoncommunicatewithoneanother？Socialscientistseducatsarejustbeginningtodealwiththesequestions，b

14、uttheresearchersalreadyhavesomestrongopinions.（79）Althoughmultitaskingkidsmaybebetterpreparedinsomewaysftoday‘sfastpacedwkplace，manyscientistsarepositivelyalarmedbythetrend.Kidsthatareinstantmessagingwhiledoinghomewk，pla

15、yinggamesonlinewatchingTV，aren’tgoingtodowellinthelongrun.Onthepositiveside，multitaskingstudentstendtobeextradinarilygoodatfindingusinginfmation.probablybecausemodemchildhoodcentersaroundvisual（視覺的）ratherthanprintmedia，t

16、heyareespeciallyskilledatanalyzingvisualdataimages.Manyeducatspsychologistssayparentsneedtoactivelyensurethattheirteenagersbreakfreeofuncontrollableengagementwithscreensspendtimeinthephysicalcompanyofhumanbeings—agrowing

17、challengenotjustbecausetechnologyofferssuchahyoptionbutbecausesomanykidsleadhighlyscheduledlivesthatleavelittletimefold—fashionedsocializingfamilymeals.Indeed，manyteenagerscollegestudentssayovercommitted（任務過重的）schedulesd

18、rivemuchoftheirmultitasking.Justasimptantisfparentseducatstoteachkidsthatit‘svaluable，evenessential，tooccasionallyslowdown，unplugtaketimetoenjoylifebeyondthescreen.A.Howismultitaskingdefine（定義）intheinfmationage？B.Howdope