大学英语英语四级练习卷及答案 (四)

大学英语四级考试

练习卷

一、阅读理解

Passage1

WhoKnows

Sincenooneknowswhatscientificdiscoverieswillbemadebetweennow

andtheyearA.D.2000,eachofuscanmakehisownpredictions.

Ourprophecies（预言）neednotbecompletelywildguesses.Weknowscience

hasmovedforwardrapidlyinthepast50yearsandwillcontinuetodo

so.Ifweallowourimaginationstobeguidedbyknownresearch,our

propheciesneednotbesheerfantasy.Wedon'thavetogosofarasto

predictthattherewillbeinvasionbymenfromMars,orthatallfood

andnourishmentwillbetakenincapsuleform,orthatmechanicalmenwill

roamtheworld.

Withthescientificinformationthatwehaveavailablenow,let'smake

anestimateofprogressinairtravel.Itislikelythatwithin50years

weshalltravelthroughtheairataspeedof10,000milesperhour.Too

fast?Notatall.Jet-propelledplanescannowtravelatleast1,000miles

anhour,andjetplaneswillbeoutmoded（过时睑shortlybyguidedmissiles.

TheX-15rocket'sspeedin1961was3,690milesperhour,andscientists

arehopingtodoubleandeventriplethisspeed.Theywillaccomplishthis

speed-up,becausethereisnoapparentscientificobstacletopreventit.

Someday,certainaerodynamic（空气动力学的）problemswillbeovercomeand

missileswillbeenlargedtocarryatleast25passengers.Whenscientists

havesolvedalltheproblemsofconstructingandincreasingthespeedof

apparatus-carryingmissiles,theirskillwillleadthemtothenextstep

—missilesforinterplanetaryflight.Thispredictionisascientific

possibilityinthenearfuture.

FlightsintoouterspacebeganwhenSputnikIwaslaunchedin1957,and

manfirstwentintospacein1961.Duringthelate1950'sandearlyI960（s

manysatellites—man-madeastralbodies—orbitedtheearthandmoon.

Satellites,whichwillbecontrolledbymenonearth,mayhavemany

beneficialuses.Perhapsscientistswilldiscoverasourceofenergy100

milesabovetheearth.Thisenergycouldbetransmittedtousasasource

ofpowerformanufacturingplantsorevenforourcookstoves.Oroneof

thesemissilesmightserveasthemediumfortransmittingcommunications

acrosstheglobe.Telephonic

communicationsmightbecarriedonbybeamingwavesatthemissile,which

wouldinturnbeamwavesatatelephonehalfwayacrosstheworld.The

missilemightbethetelephonicconnection,forexample,betweenyouin

NewYork,andafriendinBangkok.

Suchasatellitemightalsobeusedasthetransmittingmediumforinterna­

tionaltelevisionbroadcasts.ProgramsbeingtelecastfromaParisstudio

couldthenbeseensimultaneouslyineveryothercountry.Thisimmediate

internationaltransmissionwillsurelybeadevelopmentbeforetheturn

ofanewcentury.

Wemayexpecttoorderourclothing,groceries,andotherhouseholdgoods

bytelevision-phone.Weprophesythatwithintwentyfiveyears,our

telephoneswillbeequippedwithtelevisionscreenssothatwecansee

thepersonattheotherendoftheline.

Otherfieldsofsciencehavealsomadegigantic（巨大的）stridesin

progress.Medicinehadoperatedsoefficientlyinthepasthalf-century

thatmanydiseaseshavebeennearlywipedout.Andmorewilljointhis

disappearinggroupofdiseases.Diabetesandpolioareundercontrol.We

canhopeandexpectthatcancerwillbeconquered.Certainskindiseases,

likepsoriasisandeczema,whichareexceedinglycommonthoughnotfatal,

willbeeradicated（^>0.Thevictimsofannoyingdiseaseswilllead

pleasanterlives.

Eventhehealthywillbenefitfromtheadvancesinmedicine.Life

expectancyalreadyhadbeenlengthenedandscientistsknowthatthetime

iscoiningrapidlywhenthepersononehundredyearsoldwillnotbea

phenomenon.

Evenifthebirthrateshouldremainatitspresentlevel,thepopulation

willbelargeraspeoplestayalivelonger.Realizingthattheincrease

ofpopulationwillStrainnaturalresources,scientistsofallkindsare

experimentingwithmethodsforextendingtheseresources.

Onematterofimmediateurgencywillbeoursourceoffood.Thelarger

thepopulation,thegreaterwillbethedemandforfood.Ourarable适

合工作的）landisalreadytaxedtocapacity.Scientistswillhavetofind

awaytomass-producefoodbyhydroponics一thescienceofgrowing

vegetables,orotherplants,inwater一orbyirrigatingdesertwasteland.

Thisincreaseddemandforfoodwillcreateanincreaseddemandforwater.

CertainpartsoftheUnitedStates一Nevada,NewMexico,andArizona,for

example一havebeenindesperateneedofwaterforalongtime.Periodically,

thecitizensofNewYorkhavebeenwater-rationedbecausedroughtshave

seriouslythreatenedthewatersupplyinthereservoirswhich

providethemillionsofgallonsadayneededinthelargestcityin

theworld.

Scientistswillsolvethewaterproblemsofthedesertandmetropolitan

areas.Rain-makerswillhaveperfectedasimplemethod,nowinthe

elementarystagesofexperimentation,formakingcloudsreleasetheir

moisturesothattherightamountofrainisproducedtokeepreservoirs

atthecorrectlevelatalltimesoftheyear.

Anothermethodofwaterproductionwillbethepurificationofsaltwater

takenfromoceans.Whenasimple,cheapmethodhasbeenworkedoutfor

convertingseawaterintopurewatersuitableforuseinthehouseholdand

themanufacturingplant,otherscientist-engineerswillcontribute

practicalmechanicalequipmentforpipingthewaterfromseashoreto

desertareas.

Otherimprovementsofthefuturewilltouchourlivesmoreclosely.It

ispossible,forexample,toimaginethatcitiesofthefuturewillhave

undergroundnetworksofconveyorbeltswhichwouldsupplementsubwaysand

makeitpossibleforpeopletohoponarapidconveyorsystem,sitina

littlebooth,andshuttleacoupleofblocksinsafety.

Ofevenmoreimmediateinterestthantransportationistheclothingof

thefuture.Theclothesyouwillwearattheendofthiscenturymaynot

beofsilk,cotton,wool,orevennylon.Clothingwillbemadeofnew

syntheticsandsowillthego\steN（家具装饰材粉materialsyouorder

bytelevision-phone.Togetthesesyntheticmaterials,scientistswill

havedevisedsomeelectricallycontrolledapparatuswhichwillallowmen

todigtwentymilesbelowthesurfaceoftheground.Atthatlevelinside

theearth,theymaydiscovermanytypesofrock,nowunknown,whichwill

giveusthesenewsyntheticmaterials.Clothmadefromthesematerials

willbefire-proofbecausetheycomefromrock.

Whilethesesyntheticsforclotharebeingdeveloped,otherswillbe

discoveredtotaketheplaceofwoodandsteel.Wealreadyhaveplastic

furniture,plasticboats,andplasticdishes.Asourwoodandsteel

suppliesdwindle（减少），syntheticmaterialswillbedevelopedfor

buildinghomesandgiantskyscrapers.

1.Accordingtothereadingselection,theworldintheyear2000will

achievegreatprogressinmanyfields.

2.Accordingtothewriter,ourpredictionsaboutthefutureshouldbe

basedonourfreeimaginations.

3.Syntheticsinplaceofsilk,cottonandwoolwillbemadefromrocks.

4.Basedonavailablescientificinformation,itispredictedinthis

passagethatthespeedofairtravel50yearsfromnowwillreach10,000

kilometresanhour.

5.Paragraph8mainlytellsusthatmanydiseaseswillbecuredorunder

controlinthefuturethankstotheadvancesinmedicine.

6.Tomeettheincreasingdemandforfood,scientistshavefoundaway

tomass-producefoodbyirrigatingdesertwasteland.

7.Undergroundnetworksofconveyorbeltswillbemoreconvenientand

morewidelyusedthansubways.

8.Thewaytogrowvegetables,orotherplants,inwateriscalled.

9.Thewaterproblemscanbesolvedbyproducingrainand.

10.Oneofsatellites'beneficialusesistoworkasthemediumfor.

Passage2

Mostofustrademoneyforentertainment.Movies,concertsandshowsare

enjoyablebut11.Ifyouthinkthatyoucan，thaveagoodtimewithout

spendingalotofmoney,readon.Alittleresourcefulnessandafewminutes

ofnewspaper-scanningshouldgiveyousomepleasantsurprises.

Peoplemaybethemostinterestingshowinalargecity.12throughbusy

streetsandseewhateverybodyelseisdoing.Youwillprobablyseepeople

fromallovertheworld;youwill13seepeopleofeveryage,size,and

shape,andyou'11getafreefashionshow,too.Window-shoppingisalso

a14sportifthestoresareclosed.

Checkthelistingsinyourneighborhoodpaper.Localcollegesorschools

often15thepublictohearaninterestingspeakeroragood16.Thefilm

orconcertseriesatthelocalpubliclibraryprobablywon'tcostyoua

penny.Besuretocheckcommercialadvertisementstoo.Afleamarketcan

providehoursofpleasantlookinground.Perhapsyoucanfindafree

cookingorcrafts17inadepartmentstore.

Planaheadforsomeactivities.Itisalwaysmorepleasantnottohave

peopleinfrontofyouinamuseumoratazoo.Youmaysavesomemoney,

too,sincetheseplacesoften18asideoneortwofree19daysatslow

timesduringtheweek.Makesurethatyouareincludingtheindispensable

20thatpeopletravelmilestosee.Ifyoufeelliketakingan

interestingwalk,findafreewalkingtour,orplanoneyourself.

A.B.WonderC.debatD.admission

expensivee

E.setF.WanderG.safeH.addition

I.J.disputeK.welcoL.confident

valuablemely

M.sightsN.demonstrati0.certa

oninly

Passage3

Despitethesealarmingstatistics,thescaleofthethreatthatsmoking

causestowomen,shealthhasreceivedsurprisinglylittleattention.

Smokingisstillseenbymanyasamainlymaleproblem,perhapsbecause

menwerethefirsttotakeupthehabitandthereforethefirsttosuffer

theill-effects.Thisisnolongerthecase.Womenwhosmokelikemenwill

dielikemen.WHOestimatesthat,inindustrializedcountries,smoking

ratesamongstmenandwomenareverysimilar,ataround30percent;in

alargenumberofdevelopedcountries,smokingisnowmorecommonamong

teenagegirlsthanboys.

Aswomentookupsmokinglaterthanmen,theful1impactofsmokingon

theirhealthhasyettobeseen.Butitisclearfromcountrieswherewomen

havesmokedlongest,suchastheUnitedKingdomandtheUnitedStates,

thatsmokingcausesthesamediseasesinwomenasinmenandthegapbetween

theirdeathratesisnarrowing.Oncurrenttrends,some20to25percent

ofwomenwhosmokewilldiefromtheirhabit.Oneinthreeofthesedeaths

willbeamongwomenunder65yearofage.TheUSSurgeonGeneralhas

estimatedthat,amongstthesewomen,smokingisresponsibleforaround

40percentheartdiseasedeaths,55percentoflethalstrokesand,among

womenofallages,80percentoflungcancerdeathsand30percentof

allcancerdeaths.Overthelast20years,deathratesinwomenfromlung

cancerhavemorethandoubledinJapan,Norway,Poland,Swedenandthe

UnitedKingdom;haveincreasedbymorethan200percentinAustralia,

DenmarkandNewZealand;andhaveincreasedbymorethan300percentin

CanadaandtheUnitedStates.

21.Theeffectofsmokingonwomenhasnotbeenpaidenoughattention

because.

A.mensuffermorefromsmoking

B.menwouldlikewomentosmoke

C.menareconsideredthemainsufferersofsmoking

D.therearealarmingstatisticsofdeathcausedbysmoking

22.“Thisisnolongerthecase."Theword"this"refersto.

A.thatmenusedtosuffertheill-effects

B.thattherewerealarmingstatistics

C.thatthescaleofthreatbecomelarger

D.thatwomensufferedfromsmokingasgreatlyasmen

23.Fromthefactthatinsomedevelopedcountriessmokingisnowmore

commonamongteenagegirlsthanboys,wecanpredictthatinthedaysto

come,.

A.womenwillhavethesamediseasesasmen

B.morewomenmaysufferfromsmokingthanmen

C.thesmokingratesamongmenandwomenwilldrop

D.theteenagegirlstodaymaygiveupsmokingwhentheyaregrown-ups

24.Allofthefollowingstatementsaretheeffectsofsmokingonwomen

EXCEPTthat

A.thedeathratesofthewomenandmenwhoaresmokingareinsimilar

proportion

B.smokingcausesthesamediseasesinwomenasinmen

C.inthepast20years,deathratesinwomenfromlungcancerhavemore

thandoubled

D.smokingisresponsiblefor30percentofallcancerdeathsamongwomen

25.Inthephrase"lethalstroke”,theword"lethal"mostprobably

means.

A.causingdeathB.causing

discomfort

C.causingpoorhealthD.causinganxiety

Passage4

Themenwhoracethecarsaregenerallysmall,withatight,nervouslook.

Theyrangefromtheearly20stothemiddle40s,anditisusuallytheir

nervesthatgofirst.

Fearisthedriver(sconstantcompanion,andtragedycanbejustastep

behind.Scarcelyamaninthe500doesnotcarrythescarsofancient

crashes.Themarkoftheplasticsurgeoniseverywhere,andburnedskin

iscommon.Sometimesadriver;sscarsareinvisible,partofhisheritage.

Twoyoungdrivers,BillyVukovichandGaryBettenhausen,racedintheir

first500in1968.Lessthan20yearsbefore,theirfathersalsocompeted

againstoneanotherontheIndytrack一anddiedthere.

Allthisthedriversaccept.Overtheyears,theyhavelearnedtotrust

theirowntechniques,reflexes,andcourage.Theydepend,too,onatrusted

servant一scientificengineering.Thoughtheymaynothavehadagreatdeal

ofschooling(anexceptionisNewZealand'sBruceMcLaren,whohasan

engineeringdegree),manydriversaregiftedmechanics,withafeeling

fortheirenginesthatamounttokinship.

Afewtopdrivershavebecomeextremelywealthy,withsix-figureincomes

fromprizemoney,endorsements,andjobswithauto-productmanufacturers.

Somehavebusinessesoftheirown.McLarendesignsracingchassis(底

盘).DanGurney'sCaliforniafactorymanufacturedthechassisofthree

ofthefirstfourearsinthe1968Indy500,includinghisownsecondplace

car.

Yetmoneyisnottheonlyreasonwhymenracecars.Perhapsitisn，teven

themajorreason.Three-timeIndywinner(1961,1964,1967)A.J.Foyt,

forexample,canfrequentlybefoundcompetingondirtytracksin

minor-leagueraces,wheremoney,crowdsandsafetyfeaturesare1imited,

andonlythedangerisnot.Whydoeshedoit?SometimesFoytanswers,

"It'sinmyblood."Othertimeshesays,"It'sgoodpractice."Nowand

thenhereplies,"Don'taskdumbquestions.”

26.Thestatement"itisusuallytheirnervesthatgofirst”

means.

A.atfirsttheyallhaveanervouslook

B.theyoftenfindtheycan'tbearthetensioneveniftheyareingood

condition

C.somedaytheyfindtheycan，tmakeresponsestoanyrisk

D.theycancontinuetheircareeratmostuntilthemiddle40s

27.Itcanbeinferredthatacaraccidentisoftencoupledwith.

A.aplasticsurgeonB.a

companion

C.ariskD.a

fire

28.Theinvisiblescarsofthedriversmentionedinthesecondparagraph

refersto.

A.theregretsleftbytheirfathersB.thefearsleftby

theirfathers

C.thecarsleftbytheirfathersD.theheritageleft

bytheirfathers

29.BruceMcLarenisdifferentfrommostofthedriversinthat.

A.hehimselfdesignschassisB.hehasan

engineeringdegree

C.hemanufactureschassisD.heisagifted

mechanic

30.A.J.Foytoftentakespartinminor-leagueracesfor.

A.prizemoneyB.blood

test

C.cheersfromthecrowdD.enjoyment

二、完型填空

完型填空（一）

Exerciseisgoodforyou,butmostpeoplereallyknowverylittleabout

howtoexerciseproperly.1whenyoutry,youcanrunsintostrouble.Many

people2thatwhenspecificmusclesareexercised,thefatinthe

neighbouringareais"3up”.Yetthe4isthatexerciseburnsfatfrom

allover5.Studiesshowmuscleswhicharenot6losetheirstrengthvery

quickly.Toregainitneeds48to72hoursandexerciseeveryotherday

will7anormallevelofphysicalstrength.To8weightyoushouldalways

“workupagoodsweat“whenexercising.9sweatingonly10body

temperaturetopreventoverheating.Thisis11waterloss.12Youreplace

theliquid,youreplacethe13.Walkingisthebestandeasy-to-do

exercise.Ithelpsthecirculationofblood14thebody,andhasadirect

15onyouroverallfeelingofhealth.Experiencesaysthat20minutes'

1617isminimunamount.18yourbreathingdoesn,treturntonormalstate

withinminutesafteryoufinish19,you'vedone20.

1.A.WhileB.WhenC.AsD.So

2.A.understandB.believeC.hopeD.know

3.A.builtB.burnedC.piledD.grown

4.A.replyB.possiblilityC.truthD.reason

5.A.armB.legC.stomachD.body

6.A.exercisedB.examinedC.protectedD.cured

7.A.loseB.raiseC.burnD.keep

8.A.loseB.gainC.keepD.burn

9.A.CertainlyB.NoC.FortunatelyD.Probably

10.A.raisesB.reducesC.destroysD.keepsup

11.A.howB.whyC.nothingbutD.morethan

12.A.WhileB.OnceC.AsD.Whenever

13.A.weightB.muscleC.sweatD.strength

14.A.overB.aroundC.throughoutD.with

15.A.effectB.useC.usageD.affect

16.A.educationB.sleepC.exerciseD.rest

17.A.onedayB.adayC.everydayD.someday

18.A.ButifB.ButC.IfD.Andif

19.A.workingB.walkingC.exercisingD.breathing

20.A.enoughB.muchC.toomuchD.muchtoo

完型填空（二）

Haveyoueverwonderedwhatourfutureislike?Practicallyallpeople

_1_adesiretopredicttheirfuture_2_.Mostpeopleseeminclinedto_3_

thistaskusingcausalreasoning.Firstwe_4_recognizethat

futurecircumstancesare_5_causedorconditionedbypresentones.We

learnthatgettinganeducationwill_6_howmuchmoneyweearnlaterand

thatswimmingbeyondthereefmaybringanunhappy_7_witha

shark.Second,peoplealsolearnthatsuch_8_ofcauseandeffectare

probabilistic（可能的）innature.Thatis,theeffectsoccurmoreoften

whenthecausesoccurthanwhenthecausesare_9_,but

notalways.Thus,studentslearnthatstudyinghard_10_goodgradesin

mostinstances,butnoteverytime.Sciencemakestheseconceptsof

causalityandprobabilitymore_11_andprovidestechniquesfordealing

_12_thenmoreaccuratelythandoescausalhumaninquiry.Inlookingat

ordinaryhumaninquiry,weneedto_13_betweenpredictionand

understanding.Often,evenifwedon'tunderstandwhy,wearewillingtoact

_14_thebasisofademonstratedpredictiveability.Whateverthe

primitivedrives_15_motivatehumanbeings,satisfyingthemdepends

heavilyontheabilityto_16_futurecircumstances.Theattempttopredict

isoftenplayedina_17_ofknowledgeandunderstanding.Ifyoucan

understandwhycertainregularpatterns_18_,youcanpredictbetterthan

ifyousimplyobservethosepatterns.Thus,humaninquiryaims_19_

answeringboth"what"and"why"question,andwepursuethese_20_by

observingandfiguringout.

1.[A]exhibit[B]exaggerate[C]examine[D]exceed

2.[A]contexts[B]circumstances[C]inspections[D]intuitions

3.[A]underestimate[B]undermine[C]undertake[D]undergo

4.[A]specially[B]particularly[C]always[D]generally

5.[A]somehow[B]somebody[C]someone[D]something

6.[A]enact[B]affect[C]reflect[D]inflect

7.[A]meeting[B]occurrence[C]encounter[D]contact

8.[A]patterns[B]designs[C]arrangements[D]pictures

9.[A]disappointde[B]absent[C]inadequate[D]absolute

10.[A]creates[B]produces[C]loses[D]protects

11.[A]obscure[B]indistinct[C]explicit[D]explosive

12.[A]for[B]at[C]in[D]with

13.[A]distinguish[B]distinct[C]distort[D]distract

14.[A]at[B]on[C]to[D]under

15.[A]why[B]how[C]that[D]where

16.[A]predict[B]produce[Clpretend[D]precede

17.[A]content[B]contact[C]contest[D]context

18.[A]happen[B]occur[C]occupy[D]incur

19.[A]at[B]on[C]to[D]beyond

20.[A]purposes[B]ambitions[C]drives[D]goals

三、翻译

1、他用所有的积蓄为儿子买了一辆自行车。(savings)

2、中央电视台新闻节目为我们学习英语提供了实践机会。(givepractice)

3、农民们如果要摆脱贫困还有许多事情要做。(getridof)

4、老师已经找到打破怀特太太家玻璃窗的那个学生。(findout)

5、报纸的新闻板块是我们获知每日重要新闻的地方。(learnfrom)

参考答案：

一、阅读理解：

I.Y2.N3.Y4.N5.Y6.N7.NG

8.hydroponics9.purifyingseawater10.

transmittingcommunicationsacrosstheglobe

II.A12.F13.014.G15.K16.C17.N18.E19.

D20.M21.C22.A23.B24.C25.A26.B27,D28.

A29.B30.D

二、完型填空

完型填空(一)

1.【答案】D因为大部分人不知道如何正确锻炼，所以，人们在训炼时常会遇

到麻烦。句中you表示泛指。

2.【答案】C"希望“邻近的脂肪消耗掉,在此符合语境；understand,know不

合逻辑，因为，即已”明白“，就不会不符合事实真相；believe表示的是人

的得一种看法，而看法有对有错。

3.【答案】B下一句中再现了burn这一词。

4.【答案】Ctruth本意为“真理”，此处引申为“事实”一一指实际锻炼时

脂肪消耗的情形。余者不合文意。

5.【答案】D余者不能概全

6.【答案】A根据常识可知，“不锻炼的肌肉会很快丧失力量。

7.【答案】D根据前一句“要重新获得力量需要4