中央电大学位英语月真题和答案00001Word下载.docx
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ofbrainactivity)increasesinthebraininpeoplewhowereexposedtoa
cellphoneintheareaclosesttotheantenna,”saidDr.NoraVolkowofthe
NIH,whosestudywaspublishedintheJournaloftheAmericanMedical
Association.(76)Thestudywasmeanttoexaminehowthebrainreactsto
electromagneticfieldscausedbywirelessphonesignals。
Volkowsaidshewassurprisedthattheweakelectromagneticradiation(电
磁辐射)fromcellphonescouldaffectbrainactivity,butshesaidthe
findingsdonotshedanylightonwhethercellphonescausecancer.“This
studydoesnotinanywayindicatethat.Whatthestudydoesistoshowthe
humanbrainissensitivetoelectromagneticradiationfromcellphone
exposures。
”Useofthedeviceshasincreaseddramaticallysincetheywere
introducedintheearly1980s,withabout5billioncellphonesnowinuse
worldwide。
Somestudieshavelinkedcellphoneexposuretoanincreasedriskof
braincancers,butalargestudybutheWorldHealthOrganizationdidnot
offeraclearanswertothis.Volkow’steamstudied47peoplewhohadtheir
brainexaminedwhileacellphonewasturnedonfor50minutesandanother
whilethephonewasturnedoff.Whiletherewasnocompletechangeinbrain
metabolism,theyfounda7percentincreaseinbrainmetabolisminthe
regionclosesttothecellphoneantennawhenthephonewason。
(77)Expertssaidtheresultswereinteresting,buturgedthattheybe
understoodwithgreatcare.“Althoughthebiologicalsignificance,ifany,
ofincreasedglucosemetabolismfromtoomuchcellphoneexposureis
unknown,theresultsrequirefurtherinvestigation,”HenryLaiofthe
UniversityofWashingtonintheU.S.andDr.LennartHardellofUniversity
HospitalinSweden,wroteinanarticleinJAMA.“Muchhastobedoneto
furtherinvestigateandunderstandtheseeffects。
”Theywrote。
1.
Accordingtothepassage,whichofthefollowingisTRUE?
A.
Cellphoneuseisdangerous。
B.
Cellphoneusecausescancer。
C.
Thehumanbrainisanelectromagneticfield。
D.
Thereareabout5billioncellphoneusersintheworldright
now。
2.
DoctorVolkowwasastonishedbecause______。
herresearchhasshedlightonherunderstandingofcellphone
shefoundthatcellphoneexposureisharmfultohumanbrain
shefoundthatusingacellphoneforabout50minutescould
influenceorchangebrainactivity
humanbrainisnotresponsivetoelectromagneticradiation
3.
Accordingtothepassage,cellphoneswerelaunched_______。
inthelate1970s
B.between1980and1985
inthelate1980sD.intheearly1990s
4.
Whatdoestheword“that”standforinthesecondparagraph?
Brainactivity。
Herresearchfindings。
Thefactthatcellphoneusemaycausecancer。
Herresearchprogress。
5.
Whichofthefollowingisanappropriatetitleforthis
passage?
CellPhoneRadiation:
IsItHarmful?
CellPhoneRadiati0n:
IsItUseful?
IsItHealthy?
IsItWeak?
Passage2
Questions6to10arebasedonthefollowingpassage:
Humanbeingshavealwayshadanabilitytoattendtoseveralthingsat
once.(78)Noriselectronicmultitaskingentirelynew:
We’vebeendriving
whilelisteningtocarradiossincetheybecamepopularinthe1930s.but
thereisnodoubtthatmultitaskinghasreachedakindofwarpspeedinthe
eraofWeb-enabledcomputers,whenithasbecomeroutinetoconductseveral
IM(及时通讯)conversations,watchTVandusethecomputerallatonce。
Butwhat’stheimpactofthismediaconsumption?
Andhowarethese
multitaskingdeviceschanginghowkidslearn,reasonandcommunicatewith
oneanother?
Socialscientistsandeducatorsarejustbeginningtodealwith
thesequestions,buttheresearchersalreadyhavesomestrongopinions。
(79)Althoughmultitaskingkidsmaybebetterpreparedinsomewaysfor
today’sfast-pacedworkplaced,Manyscientistsarepositivelyalarmedby
thetrend。
Kidsthatareinstantmessagingwhiledoinghomework,playing
gamesonlineandwatchingTV,aren’tgoingtodowellinthelongrun。
Onthepositiveside,multitaskingstudentstendtobeextraordinarily
goodatfindingandusinginformation.Andprobablybecausemodernchildhood
centersaroundvisual(视觉的)ratherthanprintmedia,theyareespecially
skilledatanalyzingvisualdataandimages。
Manyeducatorsandpsychologistssayparentsneedtoactivelyensure
thattheirteenagersbreakfreeofuncontrollableengagementwithscreens
andspendtimeinthephysicalcompanyofhumanbeings—agrowingchallenge
notjustbecausetechnologyofferssuchahandyoptionbutbecausesomany
teenagersandcollegestudentssayovercommitted(任务过量的)schedulesdrives
muchoftheirmultitasking。
Justasimportantisforparentsandeducatortoteachkidsthatit’s
valuable,evenessential,tooccasionallyslowdown,unplugsandtaketime
toenjoylifebeyondthescreen。
6.Whatisthemainideaofthispassage?
A.Howismultitaskingdefine(定义)intheinformationage?
B.Howdopeopleseenewtechnologyandthesocialchangeitbrings
about?
C.Howdoestechnologychangemodernfamilylife?
D.What’stheimpactofmultitaskingonyoungpeople?
7.Theexpression“warpspeed”inthefirstparagraphisclosestin
meaningto____。
A.Lowspeed
B.Toomuchtimealone。
C.highspeed
D.steadyspeed
8.Accordingtosometeenagersandcollegestudents,whatcausestheir
multitasking?
A.Overcommittedschedules
B.Toomuchtimealone
C.Inabilitytofocus
D.Fearofbeingneglected
9.Accordingtothepassage,whichofthefollowingstatementisTRUE?
A.Humanshavebeguntoengageinthemultitaskingbehaviorssincethe
informationage。
B.Multitaskingisacriticalskillthatstudentsarerequiredtolearn
atschool。
C.Onlyparentscanhelptheirkidstogetridofthemultitasking
habits。
D.multitaskingmaypreparestudentsfortherealityoftoday’sfast-
pacesworkenvironment。
10.Whatdoeducatorsandpsychologistadviseparentstodotheir
multitaskingkids?
A.Tocutoffhomeinternetconnection。
B.Toseekmedicaltreatment。
C.Toencouragetheirkidstohavesomesociallife。
D.tohelptheirkidstosetpersonalgoals
Passage3
Questions11to15arebasedonthefollowingpassage:
ThenuclearpoweremergencyataJapaneseatomicpowerplantlastMarchcouldleadtoamajorre-examinationinEuropeancountriesthatarealreadybuildingsuchplantsorareconsideringashiftfromfossil(化石)fuelstonuclearenergytofightclimatechange.Withtheterribleaccident25yearsagoinChernobyl(切尔诺贝利)beginningtofadeinEuropeanMemories,governmentsacrossEuropehavegrownmoreopentousingmorenuclearpower.EnthusiasmfornuclearpowerisparticularlystronginEasternEurope,whichwantstomoveawayfromdependenceonRussianoilandnaturalgas,andonheavilypollutingcoal-firedpowerplants.Easterngovernmentshavebegunimprovingexistingnuclearplantsorarebuildingorplanningnewones.ButasJapanstruggledtodealwithhernuclearcrises,discussionaboutthegoodandthebadofnuclearpowerbecameheated。
(80)InGermany,nuclearpowerhasbeenarepeatedlyarguedandwidelyfeltissuefordecades。
Upto70percentofGermansopposenuclearpower.Recentlyabout40,000peopleturnedouttoformahumanchainnearanuclearplanttoprotestgovernmentpoliciesonnuclearpower.“TheaccidentinJapancouldleadtoamajorrethinkinEurope,”saidHenrikPaulitzoftheInternationalDoctorsforthePreventionofNuclearWar.“Governmentshavenotbeenquiteopenaboutthesafetylevelsofthenuclearpowerplants。
”
Chancellor(总理)AngelaMerkelheadsacenter-rightunitygovernmentthatsupportstheuseofnuclearpower.Hergovernmentrecentlymadeadisputeddecisiontoextendthelifeofthecountry’s17nuclearpowerplantsbyanaverageof12years.Shewillnowfacemorepressurethechangethatpolicy.Shecalledanemergencymeetingwithherseniorministers.“Weknowhowsafeourplantsareandthatwedonotfaceathreatfromsuchaseriousearthquakeorviolenttidalwave,”Mrs.Merkelsaidafterthemeeting.“WewilllearnwhatwecanfromtheeventsinJapan。
11.Accordingtothepassage,whichofthefollowingaboutEuropeisTRUE?
A.ItisdependentonRussiaforgasandoil。
B.Ithasputanendtofossilfuels。
C.Ithadamajornuclearaccidentthisyear。
D.Itislikelythattheywouldrethinktheirnuclearpowerpolicies。
12.Accordingtothepassage,allthefollowingstatementsaboutEasternEuropearetrueEXCEPT_______。
A.theyareeagertobuildnewnuclearpowerplants
B.theyhavetotallyforgottentheChernobylaccident25yearsago
C.theyhaveimprovedtheir