大學(xué)英語六級閱讀模擬練習(xí)

大學(xué)英語六級閱讀模擬練習(xí)

練習(xí)1

Sugarissomuchapartofourmodernlifethatwe

onlyreallythinkaboutitwhen,forsome11,wecannot

obtainit.Ithasbeenknowntomanforatleast3,000

years,buthas12intocommonuseonlyin13times.

Untilquiterecentlyitwasconsideredasamedicineand

asaluxuryfortheveryrichonly.

Sugaris,then,14toourcivilization.Butwhat15

isit?Ofcourse,mostofusrecognizesugarimmediately

asthesweetmaterialwhichweputincoffeeorcakes.

Thiscommonformofsugarisderivedfromtwoplants:

thesugarcane(atypeofgrasswhichgrowstoaheight

oftwentyfeet)andthesugarbeet(whichgrows

underground).Butthereareinfactmanytypesofsugar,

andthechemistrecognizeshundredsofdifferent16,

eachcomingfromadifferentsource.

About90%ofthesugarisproducedasfood.Only10%

isusedinindustryfor17otherthanfoodproduction.

Yetsugarhasgreatpossibilitiesforuseasthebasis

ofchemicals.Itcanevenbeusedformakingplastics.

Inthefuturethesepotentialuseswillcertainlybe

developedmorethaninthepast.

Therearemanyreasonswhyweshould18the

productionofsugar.Mostimportantisthatitisoneof

themosthighlyconcentratedofenergyfoods.

Thussugarcaneandbeetproduceanaverageof

7,000,000caloriesperacre.Inthiswaytheyhavethe

advantageoverpotatoeswhichgiveonly4,000,000,

whilethe19forwheatandbeansis2,000,000each.So

threeacresoflandgrowingwheat,beansandpotatoes

giveonly20moreenergythanoneacreofsugar.

A.slightlyB.intentionC.reasonD.modern

E.stronglyF.figureG.comeH.significant

I.exactlyJ.increaseK.proposalsL.turn

M.purposesN.varieties0.serious

ILC12.G13.D14.II15.I16.N17.M18,J19.

F20.A

TheproductivityofAmericansemployedinprivate

businesseshasdeclined.Theproductivityofworkersin

countriessuchasJapanandGermanyisincreasing.

Americanmachinetools,onaverage,areold,relatively

inefficient,andrapidlybecomingobsolete,whereas

thoseofourcompetitorsoverseas,incomparison,are

newerandmoreefficient.Wearenolongerthemost

productiveworkersintheworld.Wearenolongerthe

leadersinindustrialinnovation（革新）.Wearean

immenselywealthynationofeducatedmenandwomenwho

seemtohavelostsightofthefactthateverythingfrom

thesimplestnecessitiestothefinestluxuriesmustbe

producedthroughourowncollectivehardwork.Wehave

cometoexpectautomaticincreasesinourcollective

standardofliving,butweseemtohaveforgottenthat

theseincreasesarepossibleonlywhenourproductivity

continuestogrow.

Onethingthatmustchangeistherateatwhichwe

substitutecapitalequipmentforhumanlabor.Simply

put,ourlaborforcehasincreasedatafargreaterrate

thanhasourstockofcapitalinvestment.Weseemto

haveforgottenthatourpastproductivitygains,toa

largeextent,wererealizedfromsubstitutionsof

capitalforhumanlabor.Today,3timesasmanyrobots

arelistedascapitalassetsbyJapanesefirmsasby

UnitedStatesfirms.

Thereisnodoubtthatrobotswillbecomeacommon

sightinAmericanfactories.Representinganew

generationoftechnology,robotswillreplacefactory

labormuchasthefarmtractorreplacedthehorse.Robot

technologyhasmuchtooffer.Itoffershigherlevelsof

productivityandqualityatlowercosts;inpromisesto

freemenandwomenfromthedull,repetitioustoilof

thefactory,itislikelytohaveanimpactonsociety

comparabletothatmadebythegrowthofcomputer

technology.

21.Thewordobsolete(Para.1)mostprobably

means.

A.weakB.old

C.newD.outofdate

22.Theauthorisanxiousabout

A.hispeoplenolongertakingtheleadin

industrialinnovation

B.hiscountrynolongerbeingawealthynation

C.hispeopleforgettingtoraisetheirproductivity

D.hiscountryfallingbehindotherindustrial

nations

23.Accordingtotheauthor,inhiscountry

A.theproportionoflaborforcetocapital

investmentisquitelow

B.thegrowthrateoflaborforceshouldbegreater

thanthatofcapitalinvestment

C.theproductivityincreasesshouldbeachievedby

theincreasesoflaborforce

D.capitalinvestmentshouldhaveincreasedmore

rapidlythanlaborforce

24.Sofarastheinfluenceonsocietyisconcerned,

A.robottechnologyseemstobemuchmorepromising

thancomputertechnology

B.computertechnologyhaslesstoofferthanrobot

technology

C.robottechnologycanbecomparedwithcomputer

technology

D.robottechnologycannotbecomparedwithcomputer

technology

25.Thepurposeoftheauthorinwritingthis

passageistoshowthat.

A.robotswillhelpincreaselaborproductivity

B.robotswillruleAmericanfactories

C.robotsarecheaperthanhumanlaborers

D.robotswillfinallyreplacehumansinfactories

21.D22.C23.D24.C25.A

大學(xué)英語六級閱讀練習(xí)和答案2

Mostyoungpeopleenjoysomeformofphysical

activity.Itmaybewalking,cyclingorswimming,orin

winter,skatingorskiing.Itmaybeagameofsomekind

football,hockey,golf,ortennis.Itmaybe

mountaineering.

Thosewhohaveapassionforclimbinghighand

difficultmountainsareoftenlookeduponwith

astonishment.Whyaremenandwomenwillingtosuffer

andhardship,andtotakerisksonhighmountains?This

astonishmentiscausedprobablybythedifference

betweenmountaineeringandotherformsofactivityto

whichmengivetheirleisure.

Mountaineeringisasportandnotagame.Thereare

noman-maderules,asthereareforsuchgamesasgolf

andfootball.Thereare,ofcourse,rulesofadifferent

kindwhichitwouldbedangeroustoignore,butitis

thisfreedomfromman-maderulesthatmakes

mountaineeringattractivetomanypeople.Thosewho

climbmountainsarefreetousetheirownmethods.

Ifwecomparemountaineeringandothermorefamiliar

sports,wemightthinkthatonebigdifferenceisthat

mountaineeringisnotateamgame.Weshouldbemistaken

inthis.Thereare,itistrue,nomatchesbetweenteams

ofclimbers,butwhenclimbersareonarockfacelinked

byaropeonwhichtheirlivesmaydepend,thereis

obviousteamwork.

Themountainclimberknowsthathemayhavetofight

forcesthatarestrongerandmorepowerfulthanman.He

hastofighttheforcesofnature.Hissportrequires

highmentalandphysicalqualities.

Amountainclimbercontinuestoimproveinskill

yearafteryear.Askier（滑雪手）isprobablypasthis

bestbytheageofthirty,andmostinternationaltennis

championsareintheirearlytwenties.Butitisnot

unusualforamanoffiftyorsixtytoclimbthehighest

mountainsintheAlps.Theymaytakemoretimethan

youngermen,buttheyprobablyclimbwithmoreskilland

lesswasteofefforts,andtheycertainlyexperience

equalenjoyment.

26.Mountaineeringinvolves.

A.coldB.hardship

C.physicalriskD.alloftheabove

27.Thedifferencebetweenasportandagamehasto

dowiththekindof

A.activityB.rules

C.uniformD.participants

28.Mountaineeringcanbecalledateamsport

because

A.itisanOlympicevent

B.teamscompeteagainsteachother

C.mountaineersdependoneachotherwhileclimbing

D.thereare5climbersineachteam

29.Mountaineerscompeteagainst.

A.natureB.eachother

B.otherteamsD:internationalstandards

30.Thebesttitleforthepassageis.

A.MountaineeringIsDifferentfromGolfand

Football

B.MountaineeringIsMoreAttractivethanOther

Sports

C.Mountaineering

D.MountainClimbers

26.D27.B28.C29.A30.C

Asthe11oflifecontinuestoincrease,wearefast

losingtheartofrelaxation.Onceyouareinhabitof

rushingthroughlife,beingonthegofrommorningtill

night,itishardtoslowdown.Butrelaxationis

essentialforahealthymindandbody.

Stressisanaturalpartofeverydaylifeandthere

isnowaytoavoidit.Infact,itisnotthebadthing

itisoften12tobe.Acertainamountofstressis13

toprovidemotivationandgivepurposetolife.Itis

onlywhenthestressgetsoutofcontrolthatitcan

leadtopoor14andillhealth.

Theamountofstressapersoncan15dependsvery

muchontheindividual.Somepeoplearenotafraidof

stress,andsuchcharactersare16primematerialfor

managerialresponsibilities.Othersloseheartatthe

firstsigns