大学英语英语四级练习卷（最后含答案） (六)

大学英语四级试练习卷

一、阅读理解

阅读理解（一）

Manypeoplebelievetheglarefromsnowcausessnowblindnenss.Yet,dark

glassesornot,theyfindthemselvessufferingfromheadachesand

wateringeyes,andevensnowblindness,whenexposedtoseveralhoursof

“snowlight”.

TheUnitedStatesArmyhasnowdeterminedthatglarefromsnowdoesnot

causesnowblindnessintroopsinasnow-coveredcountry.Rather,aman's

eyesfrequentlyfindnothingtofoucsoninabroadexpanseofbarren

snow-coveredterrain.Sohisgazecontinuallyshiftsandjumpsbackand

forthovertheentirelandscapeinsearchoftsomethingtolookat.

Findingnothing,hourafterhour,theeyesneversotpsearchingandthe

eyeballsbecomesoreandtheeyemusclesache.Natureoffsetsthis

irritationbyproducingmoreandfluidwhichcoverstheeyeball.The

fluidcoverstheeyeballinincreasingquantityuntilvisionblurs,then

isobsured,andtheresultistotal,eventhoughtemporary,snowblindness.

ExperimentsledtheArmytoasimplemethodofovercomingthisproblem.

Scoutsaheadofamainbodyoftroopsaretrainedtoshakesnowfrom

evergreenbushes,creatingadottedlineastheycrosscompletely

snow-coveredlandscape,Eventhescoutsthemselvesthrow1ightweight,

darkcoloredobjects&heaclonwhichtheytoocanfocus.Themenfollowing

canthenseesomething.TheirgazeisarresteD.Theireyesfocusonabush

andhavingfoundsomethingtosee,stopscouringthesnow-blanketed

lanscape.Byfocusingtheirattentionononeobjectatatime,themen

cancrossthesnowwithoutbecominghopelesslysnowblindorlost.Inthis

waytheproblemofcrossingasolidwhiteterrainisovercoir.e.

1.Topreventheadaches,wateringeyesandblindnesscausedbytheglare

fromsnow,darkglassesare____.

A.indispensibleB.usefulC.ineffectiveD.available

2.Whentheeyesaresoretearsareproducedto.

A.clearthevisionB.remedysnowblindness

C.easetheirritationD.loosenthemuscles

3.Snowblindnessmaybeavoidedby.

A.concentratingtothesolidwhiteterrain

B.searchingforsomethingtolookatinsnow-coveredterrain

C.providingtheeyeswithsomethingtofoucson

D.coveringtheeyeballswithfluid

4.Thescoutsshakesnowfromevergreenbushesinorderto.

A.bivethemonbehindsomethingtosee

B.beautifythelandscape

C.warmthemselvesinthecold

D.preventthemenbehindfromlosingtheirway

5.Asuitabletitleforthiswouldbe.

A.snowblindnessandhowtoovercomeit

B.natrueJscureforsnowblindness

C.soldiersinthesnow

D.snowvision

阅读理解（二）

Kiteflyingisthesportofsendingupintotheair,bymeansofthewind,

alightframecoveredwithpaper,plasticorcloth.Theframecanbeone

ofmanydifferentshapesandisattachedtoalongstringheldinthe

handorwoundonadrum.Kiteshavealonghistoryofpractical

applicationandmanydifferenttypesofkitehavebeendebelopedtoserve

variouspurposes.

TheancientChineseusedbird-kitestocarryropesacrossriversand

valleys.Thecurrentfoldingkitewhichwilldiveexcitinglyisan

improvedtypeofsuchakite.Withitslongflatbodyandsinglepair

ofbird-likewings,itlooksjustlikealargebirdintheair.Themodern

versionisusuallymadeoftissue-paperratherthanthetraditionalsilk.

Man-liftingkitesweredevelopedinancienttimes,againbytheChinese,

forgettinginformationfromwalledcitiesandarmycamps.Infact,as

recentlyasworld2,GermanU-boatsflewkitesfromtheirtowerstolift

peopleintotheairtowatchthelanD.Thesekites,whicharenolonger

inexistence,weremadeoflight-weightcloth.Theyweremuchlargerand

strongerthantheChineseones.Theirdesign,however,wassimplythat

ofthecutterkite.Smallerinsize,thistypeofkiteisstillvery

popularasatoyforchildren,beingeasytomakewithadiamond-shaped

frame,nowingsandbrown-papercovering.Box-kitesareanothertypeof

kitefoundintoyshopstoday.Thefirstbox-kite,namedforitsbox-like

body,wasdevelopedinthenineteenthcenturytotesttheoriesofflight

andthistypeofcotton-coveredkitegreatlyassistedthesuccessof

earlyaeroplane.Thesekitesaretheancestorsofaheavierversionof

thebox-kite,whichconsistsoftwomainsections,placedsidebyside.

Developedforthepeacetimepurposeoffishinginstrongseawind,itis

theonlymodernkitedescribedwhichhaspracticalvalue.Along-lasting

plasticmaterialhastobeusedforthiskite,whichcarriesfishing

lines.

1.TheancientChinesebird-kiteswereusuallymadeoflightframes

coveredwith.

A.silkB.paperC.clothD.plastic

2.ThekitesusedbyGermanU-boatsinwouldwar2forthemilitarypurpose

weremadeof.

A.brownpaperB.plasticmaterialC.light-weightclothD.traditional

silk

3.TheancientChineseman-liftingkiteswereused__.

A.tocarryropesacrossriversandvalleysB.forthemilitarypurpose

C.astoyforchildrenD.forfishinginstrongseawind

4.Whichofthefollowingstatementsisnotture?

A.Theframeofakiteisattachedtolongstringheldinthehandorwound

ondrum.B.Theancestorofthedoublebox-kite.C.Thecutterkitehas

adiamond-shapedbodybutnowings.D.Thecurrentfoldingkiteis

developedtotesttheoriesofflight.

5.Thebesttitleforthismaybe.

A.TheancestorsofmodernkitesB.ThehistoryoftheChinesekites

C.differenttypesandusesofkitesD.thedifferentbetweenancientand

modernkites.

二、完型填空

完型填空（一）

Daltonwonderedwhytheheavierandlightergasesintheatmospheredid

notseparateasoilandwaterdo.Hefinallyconcludedthattheconstituent

1mustexistintheformof2particlesoratomsandthatthese3be

completelymixedtogetherinthe4.Thisthrewanewlightin5lawsof

definiteproportions.Itwas6necessarytosupposethattheatoms7

combinesintossmallgroupsofuniform8andsoformmorecomplexsubstance;

9themysteryofthislawwas10.Daltonsuggested,forexan.ple,

thatcarbonmonoxide11formedbytheonewithone12ofatomsofcarbon

andoxygen,13carbondioxideresultsfromasingle14ofcarbonuniting

withtwoatoms15oxygen.Assumingthistobetrue,16thedefinite

proportionsofProut5slaw（17allchemicalcompoundsthedifferent

constituents18enterinunvaryingproportions)wouldnaturally19the

relativeweightsofthemany20kindsofatoms.

1.A.gasesB.piecesC.thingsD.gas

2.A.timelyB.trimmedC.tinyD.topical

3.A.oughtB.couldC.willD.must

4.A.skyB.atmosphereC.oxygenD.environment

5.A.variousB.manyC.theD.those

6.A.onlyB.tooC.thatD.extremely

7.A.shouldB.wereC.getD.could

8.A.constructB.structureC.pieceD.feature

9.A.butB.alsoC.thusD.nevertheless

10.A.solvedB.discoveredC.brokedD.told

11.A.mustB.beenC.wereD.is

12.A.puttingB.pairingC.placingD.preparing

13.A.whileB.whenC.thereforeD.also

14.A.pieceB.typeC.atomD.measure

15.A.fromB.inC.ofD.for

16.A.thenB.soC.byD.that

17.A.fromB.inC.toD.for

18.A.areB.wouldn,tC.alwaysD.never

19.A.describeB.unitC.mixD.reveal

20.A.differentB.usualC.importantD.chemical

完型填空（二）

Generallyspeaking,aBritishiswidelyregardedasaquiet,shyand

conservativepersonwhois1

onlyamongthosewithwhomheisacquainteD.Whenastrangerisatpresent,

heoftenseemsnervous,2embarrasseD.Youhavetotakeacommuter

trainanymorningoreveningto3thetruthofthis.

Serious-lookingbusinessmenandwomensitreadingtheirnewspapersor

dozinginacorner;hardlyanybodytalks,sincetodosowouldbe

consideredquiteoffensive.___4,thereisanunwrittenbutclearly

understoodcodeofbehaviorwhich,5broken,makestheoffender

immediatelytheobjectof6.Ithasbeenknownasafactthatthe

aBritishhasa7forthediscussionoftheirweatherandthat,

ifgivenachance,hewilltalkaboutit8.Somepeoplearguethat

itisbecausetheBritishweatherseldom9forecastandhence

becomesasourceofinterestand___10_toeveryone.Thismaybeso.

11aBritishcannothavemuch12intheweatherir.en,who,

afterpromisingfine,sunnyweatherforthefollowingday,areoften

provedwrong13___acloudovertheAtlanticbringsrainyweatherto

alldistricts!Themaninthestreetseemstobeasaccurate---oras

inaccurate---astheweathermeninhis14___.Foreignersmaybe

surprisedatthenumberofreferences15weatherthattheBritish

maketoeachotherinthecourseofasingleday.Veryoften

conversationalgreetingsare___16__bycommentsontheweather."Nice

day,isn'tit?〃“Beau:iful!〃maywellbeheardinsteadof〃Goodmorning,

howareyou?”17theforeignermayconsiderthisexaggeratedand

comic,itisworthwhilepointingoutthatitcouldbeusedtohis

advantage.___18___hewantstostartaconversationwithaBritishbut

is19toknowswherestobegin,hecoulddowelltomentionthestate

oftheweather.Itisasafesubjectwhichwill__20ananswerfrom

eventhemostreservedoftheBritish.

1.A.relaxedB.frustratedC.amusedD.exhausted

2.A.yetB.otherwiseC.evenD.so

3.A.experienceB.witnessC.watchD.undergo

4.A.DeliberatelyB.ConsequentlyC.FrequentlyD.Apparently

5.A.unlessB.onceC.whileD.as

6.A.suspicionB.oppositionC.criticismD.praise

7.A.emotionB.fancyC.likelinessD.judgement

8.A.atlengthB.toagreatextentC.fromhisheartD.byallmeans

9.A.followsB.predictsC.defiesD.supports

10.A.dedicationB.compassionC.contemplationD.speculation

11.A.StillB.AlsoC.CertainlyD.Fundamentally

12.A.faithB.relianceC.honorD.credit

13.A.ifB.onceC.whenD.whereas

14.A.propositionsB.predictionsC.approvalD.defiance

15.A.aboutB.onC.inD.to

16.A.startedB.conductedC.replacedD.proposed

17.A.SinceB.AlthoughC.HoweverD.Onlyif

18.A.EvenifB.BecauseC.IfD.For

19.A.atalossB.atlastC.insgroupsD.ontheoccasion

20.A.stimulateB.constituteC.furnishD.provoke

三、单词拼写

1.Mr.Limovedtotheseashoreinhisf（四十来岁）.

2.H（听至lj）thegoodnews,wealljumpedwithjoy.

3.IchangedintomysportsshoessothatIcouldwalkmorec（舒

服）.

4.W（星期三）isthefourthdayofaweek.

5.Walkingeverydaykeepmef（健康）thanbefore.

参考答案：

一、阅读理解:

阅读理解（一）

答案：CCCAA

阅读理解（二）

答案：ACBDC

二、完型填空

1.【答案】A根据上文中的heavierandlightergases可以确定，本空中应

填入“组成的气体”，即constituentgaseso

2.【答案】C根据句子意思判断,句中的词意为微粒的意思，选项C.tiny合

乎题意。

3.【答案】D情态动词must在这里是“必定、必须”的意思。

4.【答案】Bsky意为“天空”，atmosphere意为“大气”，oxygen意为“氧

气”，environment意为“环境”，只有B项正确。

5.【答案】C这帮助解释了大气组成气体的比例确定原理。因为是特指这一原

理，用定冠词the。

6.【答案】Aonlynecessary的意思是“仅仅是必要”。故A正确。

7.【答案】D根据句子意思判断，could是“能够”的