大学英语四级考试真题第3套及答案详解Word格式.docx
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大学英语四级考试真题第3套及答案详解Word格式.docx
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oneistoworkinastate-ownedbusinessandtheotherinajointventure.Youaretomakeachoicebetweenthetwo.Writeanessaytoexplainthereasonsforyourchoice.Youshouldwriteatleast120wordsbutnomorethan180words.
PartII
ListeningComprehension
(25minutes)
说明:
由于2016年12月四级考试全国共考了2套听力,本套真题听力与前2套内容完全一样,只是顺序不一样,因此在本套真题中不再重复出现。
PartⅢ
ReadingComprehension
(40minutes)
SectionA
Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.
Questions26to35arebasedonthefollowingpassage.
Manymenandwomenhavelongboughtintotheideathatthereare"
male"
and"
female"
brains,believingthatexplainsjustabouteverydifferencebetweenthesexes.Anewstudy26thatbelief,questioningwhetherbrainsreallycanbedistinguishedbygender.
Inthestudy,TelAvivUniversityresearchers27forsexdifferencesthroughouttheentirehumanbrain.
Andwhatdidtheyfind?
Notmuch.Ratherthanofferevidencefor28brainsas"
or"
female,"
researchshowsthatbrainsfallintoawiderange,withmostpeoplefallingrightinthemiddle.
DaphnaJoel,wholedthestudy,saidherresearchfoundthatwhiletherearesomegender-based29,manydifferenttypesofbraincan'
talwaysbedistinguishedbygender.
Whilethe"
average"
maleand"
femalebrainswere30different,youcouldn'
ttellitbylookingatindividualbrainscans.Onlyasmall31ofpeoplehad"
all-male"
or"
all-female"
characteristics.
LarryCahill,anAmericanneuroscientist(神经科学家),saidthestudyisanimportantadditiontoagrowingbodyofresearchquestioning32beliefsaboutgenderandbrainfunction.Buthecautionedagainstconcludingfromthisstudythatallbrainsarethesame,33ofgender.
"
There'
samountainofevidence34theimportanceofsexinfluencesatalllevelsofbrainfunction,"
hetoldTheSeattleTimes.
Ifanything,hesaid,thestudy35thatgenderplaysaveryimportantroleinthebrain--"
evenwhenwearenotclearexactlyhow."
A.abnormal
B.applied
C.briefly
D.categorizing
E.challenges
F.figure
G.percentage
H.proving
I.regardless
J.searched
K.similarities
L.slightly
M.suggests
N.tastes
0.traditional
SectionB
Directions:
Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.
CanBurglarsJamYourWirelessSecuritySystem?
A.Anyproductthatpromisestoprotectyourhomedeservescarefulexamination.Soitisn’tsurprisingthatyou’11findplentyofstrongopinionsaboutthepotentialvulnerabilitiesofpopularhome—securitysystems.B.Themostlikelytypeofburglary(人室盗窃)byfaristheunsophisticatedcrimeofopportunity,usuallyinvolvingabrokenwindoworsomeforcedentry.AccordingtotheFB1.crimesliketheseaccountedforroughlytwo.thirdsofallhouseholdburglariesintheUSin2013.Thewidemajorityoftherestwereillegal.unforcedentriesthatresultedfromsomethinglikeawindowbeingleftopen.TheoddsofacriminalusingtechnicalmeanstobypassasecuritysystemaresosmallthattheFBIdoesn’teventrackthosestatistics.
C.Oneofthemaintheoreticalhome—securityconcernsiswhetherornotagivensystemisvulnerabletobeingblockedfromworkingaltogether.Withwiredsetups,thefearisthataburglar(人室盗贼)mightbeabletoshutyoursystemdownsimplybycuttingtherightcable.Withawirelesssetup.youstickbattery—poweredsensorsuparoundyourhomethatkeepaneyeonwindows。
doors,motion,andmore.Iftheydetectsomethingwrongwhilethesystemisarmed.they’lltransmitawirelessaleftsignaltoabasestationthatwillthenraisethealarm.Thatapproachwilleliminatemostcord—cuttingconcerns--butwhatabouttheirwirelessequivalent,jamming?
withthefightdevicetunedtothefightfrequency,what’stostopathieffromjammingyoursetupandblockingthatalertsignalfromeverreachingthebasestation?
D.Jammingconcernsarenothingnew,andthey’renotuniquetosecuritysystems.Anydevicethat’sbuilttoreceiveawirelesssignalataspecificfrequencycanbeoverwhelmedbyastrongersignalcominginonthesamefrequency.Forcomparison.1et’ssayyouwantedto“jam”aconv
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