时讯：北京成人本科学士学位英语考试真题及答案

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北京地区成人本科学士学位英语统一考试

年5月7日

partireadingcomprehension ( 30 % )

directions:therearethreepassagesinthispart.eachpassageisfollowedbysomequestionsorunfinishedstatements.foreachofthemhre ur choo candd.youshoulddecideonthebestchoiceandblackenthecorrespondingletterontheanswersheet。

passage 1

questionsito5arebasedonthefollowingpassage:

spending 50 minuteswithacellphoneclosetoyourearisenoughtochangebraincellactivityinthepartofthebrainclosesttotheantena (天线) . butwhetherthatcausesanyharmisnotclear，scientistsatthenationalinstituteofhealthsaidataconferencelastmonth， addingthatthestudywillnotlikelysettleconcernsofalinkbetweencellphonesandbraincancer.' whatweshowedisglucose (葡萄糖) metabolism increasesinthebraininpeoplewhowereexposedtoacellphoneintheareaclosesttotheantenna，“said dr. nora volkow of the nih， whosestudywaspublishedinthejournaloftheamericanmedicalassociation.( 76 ) thestudywasmeanttoexaminehowthebrainreactstolectro

volkowsaidshewassurprisedthattheweakelectromagneticradiationfromcellphonescouldaffectbrainactivity， butshesaidthefindingsdonotshedanylightonwhethercellphonescausecancer.thisstudydoesnotinanywayindicatethat.whatthestudody istop ivetoelectromagneticradiationfromcellphoneexposures。 useofthedeviceshasincreaseddramaticallysincetheywereintroducedintheearly 1980 s，with about5billioncellphonesnowinuseworldwide。

somestudieshavelinkedcellphoneexposuretoanincreasedriskofbraincancers， butalargestudybutheworldhealthorganizationdidnotofferaclearanswertothis.volkow’steam studied 47 peoplewhohadtheirbrainexanel whii r50 minutesandanotherwhilethephonewasturnedoff.whiletherewasnocompletechangeinbrainmetabolism theyfounda7Percentincreaseinbraing

( 77 ) expertssaidtheresultswereinteresting， buturgedthattheybeunderstoodwithgreatcare.althoughthebiologicalsignificance ofincreasedglucosemetabolismfromtoomuchcellphonexe theresultsrequirefurtherinvestigation， “henrylaioftheuniversityofwashingtonintheu.s.anddr.lennarthardellofuniversityhospitalinsweden，wroteinanarticleinjama .“MuCC they wrote。

1. according to the passage，which of the following is true？

a. cell phone use is dangerous。

b. cell phone use causes cancer。

c.thehumanbrainisanelectromagneticfield。

d.there are about5billioncellphoneusersintheworldrightnow。

2.doctorvolkowwasastonishedbecause

a.herresearchasshedlightonherunderstandingofcellphone

b.shefoundthatcellphoneexposureisharmfultohumanbrain

c.shefoundthatusingacellphoneforabout 50 minutescouldinfluenceorchangebrainactivity

d.humanbrainisnotresponsivetoelectromagneticradiation

3. according to the passage，cellphoneswerelaunched _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

a.inth elate 1970 sb.between 1980 and 1985

b.inth elate 1980 SD.in the Early 1990 S

4.whatdoestheword“that”standforinthesecondparagraph？

a. brain activity。

b. her research findings。

c.thefactthatcellphoneusemaycausecancer。

d. her research progress。

5.whichofthefollowingisanappropriatetitleforthispassage？

a.cell phone radiation:isit harmful？

b.cellphoneradiati 0n:isit useful？

c.cell phone radiation:isit healthy？

d. cell phone radiation: is it weak？

passage 2

questions6to 10 arebasedonthefollowingpassage:

humanbeingshavealwayshadanabilitytoattendtoseveralthingsatonce.( 78 ) noriselectronicmultitaskingentirelynew:we’vebeendrivingwhilelisteningtocarradiossincetheybecamepopularinthe 1930 s.but herer doe heda kind of warp speed [/S2/] intheeraofweb-enabled computers，whenithasbecomeroutinetoconductseveralim (及时通信) convers

but what’stheimpactofthismediaconsumption？ andhowarethesemultitaskingdeviceschanginghowkidslearn，reasonandcommunicatewithoneanother？ socialscientistsandeducatorsarejustbeginningtodealwiththesequestions，buttheresearchersalreadyhavesomestrongopinions。

( 79 ) althoughmultitaskingkidsmaybebetterpreparedinsomewaysfortoday’sfast-pacedworkplaced， manyscientistsarepositivelylay kidsthatareinstantmessagingwhiledoinghomework，playinggamesonlineandwatchingtv，aren’tgoingtodok

on the positive side，multitaskingstudentstendtobeextraordinarilygoodatfindingandusinginformation.andprobablybecausemodernchildhi rather than print media，theyareespeciallyskilledatanalyzingvisualdataandimages。

manyeducatorsandpsychologistssayparentsneedtoactivelyensurethatenagersbreakfreeofuncontrolableengagementwithscrenad，manyede mandpsychologists，Mators， endtimeinthephysicalcompanyofhumanbeings-agrowingchallengenotjustbecausetechnologyofferssuchahandyoptionbutbecausesomanytent r ercommitted (任务太多) schedulesdrivesmuchoftheirmultitasking。

justasimportantisforparentsandeducatortoteachkidsthatit’s valuable，even essential，to occasionally slow down，unplugsandtake

6.whatisthemainideaofthispassage？

a. how is multitasking define (定义) in the information age？

b.howdopeopleseenewtechnologyandthesocialchangeitbringsabout？

c.howdoestechnologychangemodernfamilylife？

d.what’stheimpactofmultitaskingonyoungpeople？

7.the expression“warp speed”inthefirstparagraphisclosestinmeaningto _ _ _ _ _ _ _。

a. low speed

b. too much time alone。

c .高速度

d. steady speed

8.accordingtosometeenagersandcollegestudents，what causes their multitasking？

a. overcommitted schedules

b. too much time alone

c. inability to focus

d. fear of being neglected

9. according to the passage，whichofthefollowingstatementistrue？

a.humanshavebeguntoengageinthemultitaskingbehaviorssincetheinformationage。

b.multitaskingisacriticalskillthatstudentsarerequiredtolearnatschool。

c.onlyparentscanhelptheirkidstogetridofthemultitaskinghabits。

d.multitaskingmaypreparestudentsfortherealityoftoday’sfast-Pacesworkenvironment。

10.whatdoeducatorsandpsychologistadviseparentstodotheirmultitaskingkids？

a.tocutoffhome互联网连接

b. to seek medical treatment。

c.toencouragetheirkidstohavesomesociallife。

d.tohelptheirkidstosetpersonalgoals