大学英语考试复习资料专升本英语分类模拟69

［大学英语考试复习资料］专升本英语分类模拟69

［大学英语考试复习资料］专升本英语分类模拟69

专升本英语分类模拟69

ReadingComprehension

Supposewebuiltarobot（机器人）toexploretheplanetMars.

Weprovidetherobotwithseeingdetectorstokeepitaway

fromdanger.Itispoweredentirelybythesun.Shouldwe

programtherobottobeequallyactiveatalltimes?No.The

robotwouldbeusingupenergyatatimewhenitwasnot

receivingany.Sowewouldprobablyprogramittoceaseits

activityatnightandtowakeupatdawnthenextmorning.

Accordingtotheevolutionarytheoryofsleep,evolution

equippeduswitharegularpatternofsleepingandwakingfor

thesamereason.Thetheorydoesnotdenythatsleep

providessomeimportantrestorativefunctions.Itmerelysays

thatevolutionhasprogrammedustoperformthosefunctions

atatimewhenactivitywouldbeinefficientandpossibly

dangerous.However;sleepprotectsusonlyfromthesortof

troublewemightwalkinto;itdoesnotprotectusfromtrouble

［大学英语考试复习资料］专升本英语分类模拟69

thatcomeslookingforus.Sowesleepwellwhenweareina

familiar;safeplace,butwesleeplightly,ifatall,whenwefear

thatbearswillnoseintothetent.

Theevolutionarytheoryaccountswellfordifferencesin

sleepamongcreatures.Whydocats,forinstance,sleepso

much,whilehorsessleepsolittle?Surelycatsdonotneedfive

timesasmuchrepairandrestorationashorsesdo.Butcats

canaffordtohavelongperiodsofinactivitybecausethey

spendlittletimeeatingandareunlikelytobeattackedwhile

theysleep.Horsesmustspendalmostalltheirwakinghours

eating,becausewhattheyeatisverylowinenergyvalue.

Moreover;theycannotaffordtosleeptoolongortoodeeply,

becausetheirsurvivaldependsontheirabilitytorunaway

fromattackers.

1.Theauthorusestheexampleoftherobotinspace

explorationtotellus.

A.thedifferencebetweenrobotsandmen

B.thereasonwhymenneedtosleep

C.abouttheneedforrobotstosavepower

D.abouttheclangerofmenworkingatnight

答案:B［解析］通过阅读文章可知作者通过引用机器人探索太空的例

子来说明机器人也需要休息来进行能量补充，从而引出下面的话题,

［大学英语考试复习资料］专升本英语分类模拟69

说明人类为什么需要睡眠，故选

Be

2.Evolutionhasprogrammedmantosleepatnightchieflyto

helphim.

A.maintainaregularpatternoflife

B.preventtroublethatcomeslookingforhim

C.avoiddangerandinefficientlabor

0.restorehisbodilyfunctions

答案:C［解析］根据文章第二段中：Thetheorydoesnotdenythat

sleepprovidessomeimportantrestorativefunctions.Itmerely

saysthatevolutionhasprogrammedustoperformthose

functionsatatimewhenactivitywouldbeinefficientand

possiblydangerous,可知人们在夜间休息主要是因为晚间活动效

率低下，而且可能很危险。故C正确。

3.Accordingtotheauthor;wecannotsleepwellwhenwe

A.areworryingaboutoursafety

B.areoverworked

C.areinatent

D.areawayfromhome

答案:A［解析］文章第二段最后一句指出在一个熟悉、安全的地方我们

能够睡得很好，但当担心会有野熊袭击时就会睡得很轻，即当我们担

心安全问题时就会睡不好。故选

Ao

［大学英语考试复习资料］专升本英语分类模拟69

4.Catssleepmuchmorethanhorsesdopartlybecausecats

A.needmoretimeforrestoration

B.areunlikelytobeattacked

C.aremoreactivethanhorseswhentheyareawake

D.spendlesstimeeatingtogetenoughenergy

答案:D［解析］根据文章第三段中Butcatscanaffordtohavelong

periodsofinactivitybecausetheyspendlittletimeeatingand

areunlikelytobeattackedwhiletheysleep.Horsesmust

spendalmostalltheirwakinghourseating,becausewhatthey

eatisverylowinenergyvalue,可知D为正确答案。

5.Whichofthefollowingisthemainideaofthepassage?

A.Evolutionhasequippedallcreatureswitharegularpattern

ofsleepingandwaking.

B.Thestudyofsleepisanimportantpartoftheevolutionary

theory.

C.SIeepingpatternsmustbetakenintoconsiderationinthe

designingofrobots.

D.Thesleepingpatternofalivingcreatureisdeterminedby

thefooditeats.

答案:A［解析］通过理解全文可知文章主要讲了进化论使所有生物都

有一个固定的休息和工作模式。只有A项描述与主旨贴近。故选A。

［大学英语考试复习资料］专升本英语分类模拟69

"Congratulations,Mr.Jones,it'sagirl."

Fatherhoodisgoingtohaveadifferentmeaningand

bringforthadifferentresponsefromeverymanwhohears

thesewords.Somefeelpridewhentheyreceivethenews,

whileothersworry,wonderingwhethertheywillbegood

fathers.Althoughtherearesomemenwholikechildrenand

mayhavehadconsiderableexperiencewiththem,othersdo

notparticularlycareforchildrenandspendlittletimewith

them.Manyfathersandmothershavebeenplanningand

lookingforwardtochildrenforsometime.Forothercouples,

pregnancy（怀孕）Wasanaccidentthatbothhusbandandwife

haveacceptedwillinglyorunwillingly.

Whateverthereactiontothebirthofachild,itisobvious

thattheshiftfromtheroleofhusbandtothatoffatherisa

difficulttask.Yet,unfortunately,fewattemptshavebeenmade

toeducatefathersinthisre-socializationprocess.Although

numerousbookshavebeenwrittenaboutAmericanmothers,

onlyrecentlyhasliteraturefocusedontheroleofafather.

Itisarguedbysomewritersthatthetransitiontothe

father'srole,althoughdifficult,isnotnearlyasgreatasthe

transitionthewifemustmaketothemother'srole.The

mother'sroleseemstorequireacompletetransformationin

［大学英语考试复习资料］专升本英语分类模拟69

dailyroutineandhighlyinnovativeadaptation,ontheother

hand,thefather'sroleislessdemandingandimmediate.

However,eventhoughwementionedthefactthatgrowing

numbersofwomenareworkingoutsidethehome,thefather

isstillthoughtbymanyasthebread-winnerinthehousehold.

6.Accordingtotheauthor,beingafather.

A.bringsafeelingofexcitementtosomemen

B.hasadifferentmeaningforthosewhohavedaughters

C.makessomemenfeelproudandothersuneasy

D.meansnothingbutmoreresponsibilities

答案:C［解析］根据文章第一段中Somefeelpridewhenthey

receivethenews,whileothersworry,wonderingwhetherthey

willbegoodfathers,可知当知道自己快要成为父亲时，有些男人

会感到很自豪，而有些男人却会感到担忧、不自在，故C为正确答

案。

7.Itisstatedinthepassagethat.

A.someparentsarenotpreparedtohaveachild

B.youngcouplesdonotlikechildrenatall

C.workingcouplesdonothavemuchtimetotakecareoftheir

children

D.manyparentslookforwardtohavingaboyastheirfirstchild

答案:A［解析］根据文章第二段最后一句话Forothercouples,

［大学英语考试复习资料］专升本英语分类模拟69

pregnancy（怀孕）wasanaccidentthatbothhusbandandwife

haveacceptedwillinglyorunwillingly,可知有些夫妇还没有做好

生小孩的思想准备，故A为正确答案。

8.Inthesecondparagraph,theauthor.

A.criticizesfathersfornottakingenoughresponsibilitiesin

bringinguptheirchildren

B.excusestheAmericanwritersforignoringthedifficultiesof

beingafather

C.supportstheideathatthechiefroleofafatheristoearn

moneyforthefamily

D.complainsaboutthelackofsocialprogramstohelp

husbandsadjustthemselvestobeingafather

答案:A［解析］文章第二段提到"Althoughtherearesomemen

wholikechildrenandmayhavehad...spendlittletimewith

可知作者持批评态度，故选

them:Ao

9.Thetransitiontothemother'srolerequiresthatthewife

A.changeherlifestyleinahighlyinnovativeway

B.makeacompletechangeinhereverydaylifetodealwiththe

newsituation

C.stayathometotakecareofthebaby

D.helpherhusbandinhisre-socializationprocess

［大学英语考试复习资料］专升本英语分类模拟69

答案:B［解析］根据文章第四段中Themother'sroleseemsto

requireacompletetransformationindailyroutineandhighly

故选

innovativeadaptation,Bo

10.Somewritersarguethatwithrespecttothechangeof

roles,lathers,comparedwithmothers,.

A.havetoshouldermoreburdens

B.havetomakemoredifficultadaptations

C.haveaneasierjobtodo

D.canusuallydoabetterjob

答案:C［解析］根据文章最后一段第一句话Itisarguedbysome

writersthatthetransitiontothefather'srole,althoughdifficult,

isnotnearlyasgreatasthetransitionthewifemustmaketo

themother'srole,可知与母亲这一角色相比，父亲的工作相比较

容易一些，故C为正确答案。

Underproperconditions,soundwaveswillbereflectedfrom

ahillsideorothersuchobstruction.Soundtravelsattherate

ofaboutone-fifthofamilepersecond.Ifthehilliseleven

hundredfeetaway,ittakestwosecondsforthesoundtotravel

tothehillandback.Thus,bytimingtheintervalbetweena

soundanditsreflection(theecho),youcanestimatethe

distancetoanobstruction.

DuringWorldWarntheBritishusedapractical

［大学英语考试复习资料］专升本英语分类模拟69

applicationofthisprincipletodetectGermanplanesontheir

waytobombLondonlongbeforetheenemywasnearthe

target.Theyusedradiowavesinsteadofsoundwaves,since

radiowavescanpenetratefogandclouds.Theoutnumbered

RoyalAirForce(RAF)alwaysseemedtothepuzzledGermans

tobelyinginwaitattherighttimeandnevertobesurprised.

Itwasradioechoesmorethananythingelsethatwonthe

BattleofBritain.

Sincetheradiowaveswereusedtotellthedirectionin

whichtosendtheRAFplanesandthedistancetosendthem

(theirrangeofflight,inotherwords),thedevicewascalled

radiodirectingandranging,andfromtheinitialstheword

radarwascoined.

11.Soundwavesreflectedfromahillcanbeusedtoestimate

the.

A.heightofthehill

B.speedofsound

C.distancetothehill

0.intensityofsound

答案:C［解析］文章第一段最后一句说通过对声音和回音之间的间隔

进行计时，可以算出与障碍物之间的距离，故选

Co

12.Theestimateisbasedonthe.

［大学英语考试复习资料］专升本英语分类模拟69

A.directionofthehill

B.acceptedspeedofsound

C.intervalbetweensoundandecho

D.bothBandC

答案:C［解析］根据第一段最后一句话Thus,bytimingtheinterval

betweenasoundanditsreflection(theecho),youcanestimate

thedistancetoanobstruction,可知C正确。

13.Practicalapplicationofthisprincipleresultedin.

A.newelectronicinstrumentsforplanes

B.aradiodirectingandrangingdevice

C.newradiosetsforRAFbombers

D.anelectronicdetectingdevice

答案:B［解析］根据文章最后一句话thedevicewascalledradio

directingandranging,andfromtheinitialsthewordradarwas

coined,可知B正确。

14.RadarenabledtheEnglishto.

A.detectGermanplanesontheirwaytoLondon

B.directtheoutnumberedRAFplaneseffectively

C.confuseGermanbomberpilots

D.bothAandB

答案:D［解析］文章第二段提到在第二次世界大战中，英国人利用无

线电波可以侦查出德国飞机的位置，而且那些数量占多数的皇家空军

［大学英语考试复习资料］专升本英语分类模拟69

常常会对德军造成一定的困惑，第三段提到那些皇家空军是由那些无

线电波指控的。故项和项都正确，所以选

ABDe

15.TheBritishusedradiowavesbecausethey.

A.weremore,exactthansoundwaves

B.couldnotbedetected

C.couldpenetratefogandclouds

D.wereeasiertousethansoundwaves

答案:C［解析］根据第二段中Theyusedradiowavesinsteadof

soundwaves,sinceradiowavescanpenetratefogandclouds,

故选C。

Arapidmeansoflong-distancetransportationbecamea

necessityfortheUnitedStatesassettlement（新拓居地）spread

everfartherwestward.Theearlytrainswereimpractical

curiosities,andforalongtimetherailroadcompaniesmet

withtroublesomemechanicalproblems.Themostserious

onesweretheconstructionofrailsabletobeartheload,and

thedevelopmentofsafe,effectivestoppingsystem.Once

theseweresolved,therailroadwasestablishedasthebest

meansoflandtransportation.By1860therewerethousands

ofmilesofrailroadscrossingtheeasternmountainrangesand

reachingwestwardtotheMississippi.Therewerealsoregional

southernandwesternlines.

［大学英语考试复习资料］专升本英语分类模拟69

Thehighpointinrailroadbuildingcamewiththe

constructionofthefirsttranscontinentalsystem.In1862

Congressauthorizedtwowesternrailroadcompaniestobuild

linesfromNebraskawestwardandfromCaliforniaeastwardto

ameetingpoint,soastocompleteatranscontinentalcrossing

linkingtheAtlanticseaboardwiththePacific.TheGovernment

helpedtherailroadsgenerouslywithmoneyandland.Actual

workonthisprojectbeganfouryearslater.TheCentralPacific

Company,startingfromCalifornia,usedChineselaborwhile

theUnionPacificemployedcrewsofIrishlaborers.Thetwo

groupsworkedatremarkablespeed,eachtryingtocovera

greaterdistancethantheother.In1869theymetataplace

calledPromontoryinwhatisnowthestateofUtah.Many

visitorscamethereforthegreatoccasion.Therewerejoyous

celebrationsalloverthecountry,withparadesandtheringing

ofchurchbellstohonorthegreatachievement.

Therailroadwasveryimportantinencouragingwestward

movement.Italsohelpedbuildupindustryandfarmingby

movingrawmaterialsandbydistributingproductsrapidlyto

distantmarkets.Inlinkingtownsandpeopletooneanotherit

helpedunifytheUnitedStates.

16.ThemajorproblemswithAmerica'srailroadsysteminthe

［大学英语考试复习资料］专升本英语分类模拟69

mid19thcenturylayin.

A.poorqualityrailsandunreliablestoppingsystems

B.lackoffinancialsupportfordevelopment

C.limitedrailroadlines

D.lackofatranscontinentalrailroad

答案:A［解析］文章第一段提到早期的火车很不实用，而且铁路公司面

临着棘手的技术问题，最严重的是修建能够承担一定重量的铁路轨道

和开发安全有效的停靠系统。项与文意所述相近，故选

AAo

17.Thebuildingofthefirsttranscontinentalsystem.

A.broughtaboutarapidgrowthofindustryandfarminginthe

west

B.attractedmanyvisitorstotheconstructionsites

C.attractedlaborersfromEurope

0.encouragedpeopletotravelalloverthecountry

答案:A［解析］根据文章最后一段Therailroadwasveryimportant

inencouragingwestwardmovementItalsohelpedbuildup

industryandfarmingbymovingrawmaterialsandby

distributingproductsrapidlytodistantmarkets,可知A为正确

选项。

18.Thebesttitleforthispassagewouldbe.

A.SettlementsSpreadWestward

B.TheCoast-to-CoastRailroad:AVitalLink

［大学英语考试复习资料］专升本英语分类模拟69

C.AmericanRailroadHistory

D.TheImportanceofRailroadsintheAmericanEconomy

答案:B［解析］文章第一段第一句虽然提到"settlementspread

everfartherwestward?但这不是本文论述的中心，故A错；选D

也不合适，因为作者在第三段第二句里谈的是在美国起重要作用的

transcontinentalrailway,而不是泛指美国的铁路，虽然本文从一

个侧面反映了美国铁路的历史，但C项范围太大，故C也错；第三

段点明了文章的主旨，说明了这条横贯美国的铁路在开发西部、发展

工农业生产和统一美国等方面起到了的作用，故选

avitallinkBe

19.Theconstructionofthetranscontinentalrailroadtook

A.9years

B.7years

C.4years

D.3years

答案:D［解析］根据文章第二段叙述可知，1862年国会授权铁路公司

修建铁路，但实际上4年之后即1866年才开始这项工程。1869年

完成，故共用了三年时间。

20.Whatmostlikelymadepeoplethinkabouta

transcontinentalrailroad?

A.Thepossibilityofgovernmentsupportforsuchatask.

B.TheneedtoexploreUtah.

［大学英语考试复习资料］专升本英语分类模拟69

C.Theneedtoconnecttheeastcoastwiththewest.

D.Theneedtodeveloptherailroadindustryinthewest.

答案:D［解析］根据文章最后一段Therailroadwasveryimportant

inencouragingwestwardmovementItalsohelpedbuildup

industryandfarmingbymovingrawmaterialsandby

distributingproductsrapidlytodistantmarkets,可知D为正确

Ifinditwholesometobealonethegreaterpartofthetime.

Tobeincompany,evenwiththebest,issoonwearisomeand

dissipatingandIneverfoundacompanionsocompanionable

assolitude.

Weareforthemostpartmorelonelywhenwegoabroad

thanwhenwestayinourchambers,forsolitudeisnot

measuredbythemilesofspacethatintervenebetweenaman

andhisfellows.

Thefarmer,whocanworkalonealldaywithoutfeeling

lonesome,butmustrecreatewithothersatnight,wonders

howthestudentcansitaloneatnight;hedoesnotrealizethat

thestudent,thoughinthehouse,isactuallyatworkinhisfield

andchoppinghiswoodasthefarmerwasinhis.

Societyiscommonlytoocheap.Wemeetatveryshort

intervals,nothavinghadtimetoacquireanynewvaluefor

［大学英语考试复习资料］专升本英语分类模拟69

eachother;wemeetatmealsthreetimesadayandgiveeach

otheranewtasteofthatmustyoldcheesethatweare;welive

thickandareineachother'sway,andIthinkthatwethuslose

somerespectforoneanother.

Wehavehadtoagreeonacertainsetofroles,called

etiquetteandpoliteness,tomakethisfrequentmeeting

tolerable.Certainlylessfrequencywouldsufficeforall

importantandheartycommunicationsbetweenmen.

Itwouldbebetteriftherewerebutoneinhabitanttoa

squaremile,aswhereIlive,forasthevalueofamanisnotin

hisskin,weneednottouchhim.

21.Amancanbelonelyinacrowdbecause.

A.lonelinessdoesn'tmeanbeingalone

B.manalwayswantstowork

C.solitudeinvolvesspacethatintervenebetweenamanand

hisfellows

D.lonelinesscomesfromlackofheartycommunication

答案:D［解析］根据文章第二段中...forsolitudeisnotmeasuredby

themilesofspacethatintervenebetweenamanandhis

fellows,可知孤独不是由空间距离造成的，隐含的意思是孤独来自

于缺少心灵的沟通，故D为正确答案。

22.Theauthorusestheexampleofthefarmerandthe

［大学英语考试复习资料］专升本英语分类模拟69

studenttoshowthat.

A.menneedrecreationaftertheirwork

B.menarenotlonelywhentheyareworking

C.solitudeisnecessary,forastudent

D.peoplehavedifferentconceptionsofsolitude

答案:B［解析］文章第三段指出农民可以一整天地工作而不会感到孤

单，但他却很奇怪为什么一个学生能够在晚上一个人独自静坐，因为

他没有意识到学生其实和他一样，也是在工作，所以他也不会感到孤

单。

23.Whentheauthorsays:"Societyiscommonlytoocheap",

hemeansthat.

A.wemeetnotfrequentlyenough

B.weeatcheapfoodandliveasimplelife

C.ourlivesaresoregular

D.peopledonothaveenoughheartycommunicationto

realizethevalueinotherpeople

答案:D［解析］根据文章第四段中Societyiscommonlytoocheap:

Wemeetatveryshortintervals,nothayinghadtimeto

,故选

acquireanynewvalueforeachotherDe

24.Theauthor'sopiniononthevalueofamanisthat.

A.itisunderestimatedbytherulesofetiquetteandpoliteness

B.itcanbediscoveredthroughfrequentphysicalcontacts

［大学英语考试复习资料］专升本英语分类模拟69

C.itcanbefoundinaman'sappearance

D.itdoesn'tlieinphysicalcontact

答案:D［解析］根据文章最后一句话forasthevalueofamanis

notinhisskin,weneednottouchhim,可知D为正确答案。

25.Whichofthefollowingisnottheauthor'sidea?

A.Theideaofsolitudeisembodieddifferentlyinastudentand

afarmer.

B.Theroutinelifeunderliesman'sloneliness.

C.Etiquetteandpolitenessarerulesthatmakefrequent

meetingstolerable.

D.Lessfrequentmeetingscanmakeusmoreawareofthevalue

ofmen.

答案:B［解析］从文章中可知，孤独是由于人与人之间很少的交流，但

不是日常事务造成的。因此选B。

Arecentstudydescribedcoalasa"bridgetothefuture".As

themostplentifulfossil（化石）fuelintheworld,coalhasthe

possibilityforfillingagrowingportionofthedemandfor

energy.Butproblemscausesometroubletothispromising

oldfuel.

Coalisfoundaroundtheglobe,butthreecountries—the

UnitedStates,theSovietUnionandChinaownnearlytwo

thirdsofallknowncoalreserves.Atpresentratesofusingcoal

［大学英语考试复习资料］专升本英语分类模拟69

thesereserveswouldlasttheworldmorethan200years,

accordingtotheestimatescarefullymade.Furthermore,

scientiststhinktheworldprobablyhas15timesthismuchcoal.

WhiletheUnitedStateshasthelargestshare一morethan

aquarterofthe786billiontonsofknownworldcoalreserves,

boththeSovietUnionandChinaproducealmostasmuchcoal

astheU.S.does.

Inadditiontothecategoryofknownreserves,theU.S.

GeologicalSurvey（地质调查所）hascalculatedthattheUnited

Stateshasanestimated1.7trillion（万亿）tonsofcoalatdepths

oflessthan3,000feet.Unfortunately,muchofthiscoalisnot

easytogetwithpresenttechnologyoratpresentprices.

Toproduceandusemuchmorecoalthanwedotoday,a

numberofproblemswillhavetobesolved:capitalathigh

interestrates,manpower,andtransportation,including

insufficientrailfacilities.Environmentalconcernsincludethe

properdevelopmentofminesites,possiblechangesinglobal

climatecausedbyincreasedcarbondioxidefromburningcoal,

andtheobjectsthataresentoutfromcoalstacks（烟囱）that

wearoutbuildings,poisonlakes,anddamagehumanlungs.

26.Oneoftheadvantagesofcoalisthat.

A.itcanimproveglobalclimate

［大学英语考试复习资料］专升本英语分类模拟69

B.thereisalotofit

C.itisalwayseasytodig

D.itdoesn'tpollute

答案:B［解析］根据文章第一段中Asthemostplentifulfossil（化石）

fuelintheworld,coalhasthepossibilityforfillingagrowing

portionofthedemandforenergy,可知煤的数量有很多，这可

以算作是它的一个优势，其他三项根据文章或常识都可以排除。故选

Be

27.WhichproblemisNotmentionedinthearticle?

A.Difficultiesindiggingthecoal.

B.Pollutionoftheenvironment.

C.Whathappenswhenthecoalisusedup.

0.Insufficientrailfacilities.

答案:C［解析］由第四段中muchofthiscoalisnoteasytoget

withpresenttechnologyoratpresentprices排除A选项,由第

五段第一、第二句话排除、选项，故选

BDCo

28.Whichcountryhasthelargestshareofknownworldcoal

reserves?

A.China.

B.TheUnitedStates.

C.TheformerSovietUnion.

D.Thearticledoesn'ttellus.

［大学英语考试复习资料］专升本英语分类模拟69

答案:B［解析］由第三段中WhiletheUnitedStateshasthelargest

share—morethanaquarterofthe786billiontonsofknown

故选

worldcoalreserves,Bo

29.HowmuchcoaldoestheUnitedStateshaveinknown

coalreserves?

A.786billiontons.

B.1.7billiontons.

C.Nearly200billiontons.

D.3,000billiontons.

答案:C［解析］根据文章第三段第一句话WhiletheUnitedStates

hasthelargestshare—morethanaquarterofthe786billion

tonsofknownworldcoalreserves,可知786x1/4=196.5,故选

Co

30.Accordingtothepassage,whichofthefollowing

statementistrue?

A.TheU.S.hasabout1.7trilliontonsofcoalatdepthsofmore

than3,000feet.

B.Scientiststhinkthatallcoalreserveshavebeenfoundout.

C.AIIcoaliseasytogetbecausewehavemoderntechnology.

D.TheU.S.andChinaproducealmostequalamountsofcoal.

答案:D［解析］根据文章第三段最后一句话boththeSovietUnion

andChinaproducealmostasmuchcoalastheU.S.does,可知

［大学英语考试复习资料］专升本英语分类模拟69

D为正确答案。

Thebiggestsafetythreatfacingairlinestodaymaynotbea

terroristwithagun,butthemanwiththeportablecomputer

inbusinessclass.Inthepast15years,pilotshavereportedwell

over100incidentsthatcouldhavebeencausedby

electromagneticinterference.Thesourceofthisinterference

remainsunconfirmed,butincreasingly,expertsarepointing

theblameatportableelectronicdevicesuchasportable

computers,radioandcassetteplayersandmobiletelephones.

RTCA,anorganizationwhichadvisestheaviation（航空）

industry,hasrecommendedthatallairlinesban（禁止）such

devicesfrombeingusedduring"critical"stagesofflight,

particularlytake-offandlanding.Someexpertshavegone

furthercallingforatotalbanduringallflights.Currently,rules

onusingthesedevicesareleftuptoindividualairlines.And

althoughsomeairlinesprohibitpassengersfromusingsuch

equipmentduringtake-offandlanding,mostarereluctantto

enforceatotalban,giventhatmanypassengerswanttowork

duringflights.

Thedifficultyispredictinghowelectromagneticfields

mightaffectanaircraft'scomputers.Expertsknowthat

portabledeviceemitradiationwhichaffectsthose

［大学英语考试复习资料］专升本英语分类模拟69

wavelengthswhichaircraftusefornavigationand

communication.But,becausetheyhavenotbeenableto

reproducetheseeffectsinalaboratory,theyhavenowayof

knowingwhethertheinterferencemightbedangerousornot.

Thefactthataircraftmaybevulnerable（易受损的）to

interferenceraisestheriskthatterroristsmayuseradio

systemsinordertodamagenavigationequipment.As

worrying,though,isthepassengerwhocan'thearthe

instructionstoturnoffhisradiobecausethemusic'stooloud.

31.Thepassageismainlyabout.

A.anewregulationforallairlines

B.thedefectsofelectronicdevices

C.apossiblecauseofaircraftcrashes

0.effectivesafetymeasuresforairflight

答案:C［解析］考查主题。主题一般在第一段段首。如果这个题出现在

中间的话，一般对应某一段的内容和主题，范围小一点，比较容易。

如果是第一题或最后一题，则对应整篇文章。本文的主题是关于电磁

干扰可能影响飞机安全，故选

Co

32.Whatissaidabouttheover100aircraftincidentsinthe

past15years?

A.Theymayhavebeencausedbythedamagetotheradio

systems.

［大学英语考试复习资料］专升本英语分类模拟69

B.Theymayhavetakenplaceduringtake-offandlanding.

C.Theywereprovedtohavebeencausedbythepassengers'

portablecomputers.

D.Theyweresuspectedtohaveresultedfromelectromagnetic

interference.

答案:D［解析］题干有数字，很容易在文中第一段找到对应的句子。

注意could,表示可能，所以选D:怀疑他们是电磁干扰的结果。

33.Fewairlineswanttoimposeatotalbanontheir

passengersusingelectronicdevicesbecause.

A.theydon'tbelievethereissuchadangerasradio

interference

B.theharmfuleffectofelectromagneticinterferenceisyetto

beproved

C.mostpassengersrefusetotakeaplanewhichbanstheuse

ofradioandcassetteplayers

D.theyhaveothereffectivesafetymeasurestofallbackon

答案:C［解析］关键句在第二段最后一句，giventhatmany

passengerswanttoworkduringflights.很多乘客要在飞行期间

工作，可以推断一些航空公司拒绝禁令的原因是：如果他们推行了禁

令，也许许多需要在飞机上工作的乘客就不会选择乘坐飞机了。故选

Co

34.Whyisitdifficulttopredictthepossibleeffectsof

［大学英语考试复习资料］专升本英语分类模拟69

electromagneticfieldsonanairplane'scomputers?

A.Becauseitisextremelydangeroustoconductsuchresearch

onanairplane.

B.Becauseitremainsamysterywhatwavelengthsareliableto

beinterferedwith.

C.Becauseresearchscientistshavenotbeenabletoproduce

thesameeffectsinlabs.

D.Becauseexpertslackadequateequipmenttodosuch

research.

答案:C［解析］第三段because后面给出了解释：因为他们不能在实

验室重现这些影响，所以他们没办法知道干扰是不是有危险。所以选

文中没有说过，和第二句相反，没有提到。

CoABD

35.Itcanbeinferredfromthepassagethattheauthor.

A.isinfavorofprohibitingpassengers'useofelectronic

devicescompletely

B.hasoverestimatedthedangerofelectromagnetic

interference

C.hasn'tformedhisownopiniononthisproblem

0.regardsitasunreasonabletoexerciseatotalbanduring

flight

答案:C［解析］作者没有很明确的态度，只是做客观的说明，描写了很

多情况，但没有表明自己的立场和看法。A赞成禁令；B高估危险;

［大学英语考试复习资料］专升本英语分类模拟69

C没有形成自己的观点；D认为禁令无理。

Whenaconsumerfindsthatanitemsheorheboughtis

faultyorinsomeotherwaydoesnotliveuptothe

manufacturer'sclaimforit,thefirststepistopresentthe

warranty（保单），oranyotherrecordswhichmighthelp,atthe

storeofpurchase.Inmostcases,thisactionwillproduce

results.However;ifitdoesnot,therearevariousmeansthe

consumermayusetogainsatisfaction.

Asimpleandcommonmethoduse