中山大学新理50英语自主学习大厅第四册第二单元B套答案.docx

中山大学新理50英语自主学习大厅第四册第二单元B套答案.docx

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中山大学新理50英语自主学习大厅第四册第二单元B套答案

中山大学新理5.0英语自主学习大厅第四册第二单元B套答案

B4U2-B

PartIListeningComprehension（14minutes）

SectionA

Directions:

Inthissection,youwillheartenstatements.Numbers1to6arebasedonTextAwhiletherestarebasedonTextB.EachstatementwillbereadONLYONCE.Listencarefullyanddecidewhethereachstatementistrueorfalse.

1.

A）T

B）F

Script:

Therearesomanypeoplekilledincaraccidentsthatallarereportedinthenewspapereveryday.

正确答案：

B

2.

A）T

B）F

Script:

Ifthedriverbecomessleepy,acomputerinthedashboardcouldstopthecarimmediately.

正确答案：

B

3.

A）T

B）F

Script:

Thedullandtiringprocessoflong-hourdrivingwillputlong-distancedriversinadangerousposition.

正确答案：

A

4.

A）T

B）F

Script:

Sensorsinthesmartcarscanlocatetheirpositionsindependently.

正确答案：

B

5.

A）T

B）F

Script:

Whenasatellitepassesby,itgivesoffaradiosignalwhichcanbediscoveredbyareceiverinacar’scomputer.

正确答案：

A

6.

A）T

B）F

Script:

Asthepriceofmicrochipsisdroppingsharply,theapplicationofGPSinthefutureareactuallyboundless.

正确答案：

A

7.

A）T

B）F

Script:

Becauseofthedevelopmentoftechnology,weareabletovisualizeyourtripbyanautomatedhighwaysystem.

正确答案：

A

8.

A）T

B）F

Script:

Thelasersystemsaremoreeffectiveatdiscoveringuntidyvehiclesandoperatinginbadweatherconditions.

正确答案：

B

9.

A）T

B）F

Script:

Thereremainsomenon-technicaldifficultiestobeovercomesuchasliability,costsandperceptions.

正确答案：

A

10.

A）T

B）F

Script:

Itisveryimportantforustorealizethefactthatautomatedvehicleshavealreadybeenwidelyusedinourdailylife.

正确答案：

A

SectionB

Directions:

Inthissection,youwillhearapassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblankswiththeexactwordsyouhavejustheard.Finally,whenthepassageisreadforthethirdtime,youshouldcheckwhatyouhavewritten.

Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbe（11）_________________andallowedtorust.Otherauthorities,however,thinktheautoisheretostay.Theyholdthatthecarwillremaina（12）_________________meansofurbantravelintheforeseeablefuture.

Themotorcarwill（13）_________________changesignificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmore（14）_________________,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmore（15）_________________thanpresenttypes.（16）_________________ofitspowersource,theautointhefuturewillstillbethemainprobleminurbantrafficjams.Oneproposedsolutiontothisproblemisthe（17）_________________highwaysystem.

Whentheautoentersthehighwaysystem,aretractable（可伸缩的）armwilldropfromtheautoandmakecontactwitharail.Itisquitesimilartothosepowering（18）_________________electrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoacentralcomputer.Thecomputerwillthenmonitorallofthecar’smovements.Thedriverwilluseatelephoneto（19）_________________hisdestinationintothesystem.Thecomputerwillcalculatethebestroute,and（20）_________________thecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzerthatwillwarnhimofhiscomingexit.

Script:

Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhenallautoswillbeabandonedandallowedtorust.Otherauthorities,however,thinktheautoisheretostay.Theyholdthatthecarwillremainaleadingmeansofurbantravelintheforeseeablefuture.

Themotorcarwillundoubtedlychangesignificantlyoverthenext30years.Itshouldbecomesmaller,safer,andmoreeconomical,andshouldnotbepoweredbythegasolineengine.Thecarofthefutureshouldbefarmorepollution-freethanpresenttypes.Regardlessofitspowersource,theautointhefuturewillstillbethemainprobleminurbantrafficjams.Oneproposedsolutiontothisproblemistheautomatedhighwaysystem.

Whentheautoentersthehighwaysystem,aretractable（可伸缩的）armwilldropfromtheautoandmakecontactwitharail.Itisquitesimilartothosepoweringsubwaytrainselectrically.Onceattachedtotherail,thecarwillbecomeelectricallypoweredfromthesystem,andcontrolofthevehiclewillpasstoacentralcomputer.Thecomputerwillthenmonitorallofthecar’smovements.Thedriverwilluseatelephonetodialinstructionsabouthisdestinationintothesystem.Thecomputerwillcalculatethebestroute,andreservespaceforthecarallthewaytothecorrectexitfromthehighway.Thedriverwillthenbefreetorelaxandwaitforthebuzzerthatwillwarnhimofhiscomingexit.

正确答案：

abandoned

正确答案：

leading

正确答案：

undoubtedly

正确答案：

economical

正确答案：

pollution-free

正确答案：

Regardless

正确答案：

automated

正确答案：

subwaytrains

正确答案：

dialinstructionsabout

正确答案：

reservespacefor

PartIIReadingComprehension（25minutes）

SectionA

Directions:

Inthissection,thereisapassagewithseveralblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.Youmaynotuseanyofthewordsinthebankmorethanonce.

Onaneight-milestretchofInterstate15tenmilesnorthofSanDiego,trafficengineersare21anMIT-designedsystemwhichwillintroducethe“automateddriver.”Theplancallsforcomputers,aidedbythousandsofthree-inch22spikesburiedinthehighway,totakecompletecontrolofthedrivingofcarsonheavilytraffickedroads.Carswillbe23intogroupsoftentotwelvevehicles,onlysixfeet24,travelinginunison,andcontrolledbycomputer.

25ofthiscomputerizedhighwayhavegreathopesforitsfuture.By2010,telematicsmaywellbe26oneofthemajorhighwaysintheUnitedStates.Ifsuccessful,by2020,asthepriceof27dropstobelowapennyapiece,telematicscouldbeadoptedinthousandsofmilesofhighwaysintheUnitedStates.Thiscouldprovetobean28boonaswell,savingfuel,reducing29,decreasingairpollution,andservingasan30tohighwayexpansion.

A）fatalityB）PromotersC）ProtestersD）magnetic

E）apartF）installingG）alternativeH）bringsabout

I）inevitableJ）microchipsK）trafficjamsL）cultivation

M）incorporatedintoN）environmentalO）bunched

21.______________________

正确答案：

F

22.______________________

正确答案：

D

23.______________________

正确答案：

O

24.______________________

正确答案：

E

25.______________________

正确答案：

B

26.______________________

正确答案：

M

27.______________________

正确答案：

J

28.______________________

正确答案：

N

29.______________________

正确答案：

K

30.______________________

正确答案：

G

SectionB

Directions:

Thereareseveralpassagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA）,B）,C）andD）.Youshoulddecideonthebestchoice.

PassageOne

Questions31to35arebasedonthefollowingpassage.

Youslipthekeyintotheignitionandcranktheenginetolife.Butbeforeyouputthecarintogear,youtapakeyonthekeyboardmountedbythesteeringwheel,andyourneweste-mailflashesuponthewindscreen.

Thisseductivesatyriswhatyougetwhenyoucrossacarandacomputer.Dubbedthe“networkvehicle”,ornet-mobile,itmaysooncometoadrivewaynearyou（probablytheonebelongingtoyourrichneighbor）.Inanet-mobile,amotoristcouldtapintoaregionalroadsystembutalsotomapoutaroutearoundrush-hourtrafficsnags.Driversandpassengerswillbeabletosendandreceivee-mail,trackthelatestsportsscoresorstockquotes,surftheWeb,andevenplayvideogames.Orso,atleast,sayanumberofcomputer-industryfirmssuchasMicrosoft,Sun,IBMandNetscape.

Themoderncarisalreadyanelectronicshowcaseonwheels.On-boardmicrocomputersimprovefueleconomyandreduceemissions.Theyoperateanti-lockbrakesystems,andonsomecarsevenregulatethefirmnessoftheshockabsorbers.Butmuchofthetechnologyneededtoaddextraisavailablenow.Aprototypenetworkvehicle,producedbyaconsortiumofNetscape,Sun,IBMandDelco（anautomotiveelectronicsfirmbasedinMichigan）,wasintroducedattherecentannualcomputerindustryshowinLasVegas.

Itnotonlyofferedsuchdesktop-computer-likeservicesase-mail,butallowedadrivertousethemwithoutlookingawayfromtheroad.Itwasoperatedbyvoicecommandsandprojecteditsdataontothewindscreen,usingthesamesortofhead-updisplaysystemfoundinmodernfighterjets.Membersoftheconsortiumthinkareal-worldnetworkvehiclecouldbeinproductioninaslittleasfouryears.

Car-makershavealreadybegunrollingoutsomeofthefeaturesfoundontheseprototypenetmobiles.IfthedriverofaGeneralMotorscarequippedwithitsOn-Starsystemlockshiskeyinthecar,forexample,anemergencycentrecantransmitadigitalsignaltounlockthedoors.On-staralsocallsautomaticallyforhelpifanaccidenttriggerstheairbags.ToyotaandGeneralMotorsareamongagrowinglistoffirmsofferingsuchin-carnavigationsystems.AndinEurope,BMWandMercedes-Benzrecentlyintroducednavigationhardw