大学英语四级模拟题及答案 3Word下载.docx

大学英语四级模拟题及答案 3Word下载.docx

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stoolate.

Whydowegowrongaboutourfriends—orourenemies?

Sometimeswhatpeoplesayhidestheirrealmeaning.Andifwedon'

treallylisten,wemissthefeelingbehindthewords.Supposesomeonetellsyou,“You'

realuckydog.”Ishereallyonyourside?

Ifhesays,“You'

realuckyguy”or“You'

realuckygal,”that'

sbeingfriendly.But“luckydog”?

There'

sabitof

envyinthosewords.Maybehedoesn'

tseeithimself.Butbringinginthe“

dog”bitputsyoudownalittle.Whathemaybesayingisthathedoesn'

tthinkyoudeserveyourluck.

“Justthinkofallthethingsyouhavetobethankfulfor”isanothernoisethatsaysonethingandmeansanother.Itcouldmeanthatthespeaker

istryingtogetyoutoseeyourproblemaspartofyourlifeasawhole.Butishe?

Wrappedupinthisphraseisthethoughtthatyourproblemisn'

timportant.It'

stellingyoutothinkofallthestarvingpeopleintheworldwhenyouhaven'

tgotadateforSaturdaynight.

Howcanyoutelltherealmeaningbehindsomeone'

swords?

Onewayistotakeagoodlookatthepersontalking.Dohiswordsfitthewayhelooks?

Does

whathesayssquarewiththetoneofvoice?

Hisposture?

Thelookinhis

eyes?

Stopandthink.Theminuteyouspendthinkingabouttherealmeaningofwhatpeoplesaytoyoumaysaveanothermistake.

21.Whenthewriterrecallsthethingsthathappenedbetweenhimandhisfriends,he____.

A）feelshappy,thinkingofhownicehisfriendsweretohim

B）feelshemaynothave“read”hisfriends'

truefeelingscorrectly

C）thinksitwasamistaketoviewJimasafriend

D）issorrythathisfriendslethimdown

22.Bysaying“You'

realuckydog.”,thespeaker____.

A）isjustbeingfriendly

B）expressesthesamemeaningas“You'

realuckyguy.”or“You'

realuckygal.”

C）ishumoroustoapplytheword“dog”topeople

D）hasahiddenjealousfeelingbehindthewords

23.Inlisteningtoaperson,theimportantthingis____.

A）tonoticehistone,hisposture,andthelookinhiseye

B）tolistentohowhepronounceshiswords

C）tocheckhiswordsagainsthismanner,histoneofvoice,andhisposture

D）nottobelievewhathesays

24.Ifyoufollowedtheadviceofthewriter,youwould____.

A）weighcarefullywhatpeoplesaytodeterminetheirrealmeaning

B）getalongwellwithpeople

C）trustwhatotherpeoplesay

D）havenodoubtsaboutourfriends

25.Thispassagetriestotellyouhowto____.

A）avoidmistakesaboutbothmoneyandpeople

B）saythingselegantly

C）avoidmistakesinunderstandingwhatpeopletellyou

D）keeppeoplefriendlywithouttrustingthem

Questions26to30arebasedonthefollowingpassage:

Sleepispartofaperson'

sdailyactivitycycle.Thereareseveraldifferentstagesofsleep,andtheytoooccurincycles.Ifyouareanaveragesleeper,

yoursleepcycleisasfollows.Whenyoufirstdriftoffintoslumber（安睡）,y

oureyeswillrollaboutabit,yourtemperaturewilldropslightly,yourmuscleswillrelax,andyourbreathingwereslowandbecomequiteregular.Yourbrainwavesslowdownabittoo,withthealpharhythmofratherfastwavespredominatingforthefirstfewminutes.Thisiscalledstage1sleep.For

thenexthalfhourorso,asyourelaxmoreandmore,youwilldriftdownthroughstage2andstage3sleep.Theloweryourstageofsleep,theslower

yourbrainwaveswillbe.Thenabout40to60minutesafteryouloseconsciousnessyouwillhavereachedthedeepestsleepofall.Yourbrainwaveswillshowthelargeslowwavesthatareknownasthedeltarhythm.Thisisstage4sleep.

Youdonotremainatthisdeepfourthstageallnightlong,butinsteadabout80minutesafteryoufallintoslumber,yourbrainactivitylevelwillincreaseagainslightly.Thedeltarhythmwilldisappear,tobereplacedbythe

activitypatternofbrainwaves.Youreyeswillbegintodartaroundunderyourclosedeyelids（眼皮）asifyouwerelookingatsomethingoccurringin

frontofyou.Thisperiodofrapideyemovementlastsforsome8to15minutes

andiscalledREMsleep.ItisduringREMsleepperiod,yourbodywillsoonrelaxagain,yourbreathingwillgrowslowandregularoncemore,andyouwillslipgentlybackfromstage1tostage4sleep—onlytoriseonceagaintothesurfaceofnearconsciousnesssome80minuteslater.

26.Thestagesofsleeptakeon____.

A）anirregularaspect.

B）aregularaspect

C）apunctualaspect

D）asimilaraspect

27.Stage4sleeplasts____.

A）about80minutes

B）about4060minutes

C）about30munutes

D）about2040minutes

28.Thebrainwavesaretheslowestduring____.

A）stage1C）stage4

B）stage2andstage3

D）REMsleep

29.Inthesecondparagraphtheword“dart”means____.

A）glareC）stopmoving

B）moverapidlyorsuddenlyD）gaze

30.OneofthefeaturesofREMsleepisthat____.

A）therearelargeslowwaves,thoughrapidforthefirstfewminutes

B）youhavethedeepestsleep

C）therearenobrainwaves

D）thebrainwavesarealittlefastandthebrainbecomesalittle

active

Questions31to35arebasedonthefollowingpassage:

Designingalenscanbecomparedtoplayingchess.Inchessaplayertries

totraphisopponent'

skinginaseriesofmoves.Increatingalensalensdesignerattemptsto“trap”lightbyforcingalltheraysarisingfromasinglepointinthesubjecttofocusonasinglepointintheimage,asaconsequenceoftheirpassingthroughaseriesoftransparent（透明的）elementswithpreciselycurvedsurfaces.Sinceinbothcasestheultimategoalandthemeansbywhichitcanbeattainedareknown,oneistemptedtothinktherewillbeasinglebestdecisionatanypointalongtheway.Thenumberofpossibleconsequencesflowingfromanyonedecisionissolarge,however,astobevirtually,ifnotactually,infinite.Thereforeinlensdesign,asinchess,perfectsolutionstoaproblemarebeyondreach.Althoughthisarticlewillbeconcernedonlywiththedesignofphotographiclenses,thesameprinciplesapplytoalllenses.



Thelensdesignerhasoneenormousadvantageoverthechessplayer:

thedesignerisfreetocallonanyavailablesourceofhelptoguidehimthroughthestaggeringnumberofpossibilities.Mostofthathelponcecamefrommathematicsandphysics,butrecentlycomputertechnology,informationtheory,chemistry,industrialengineeringandpsychophysicshaveallcontributedtomakingthelensdesigner'

sjobimmeasurablymoreproductive.Someofthelens

esonthemarkettodaywereinconceivableadecadeago.Otherswhosedesignisasmuchasacenturyoldcannowbemassproducedatlowcost.Withthedevelopmentofautomaticproductionmethods,lensesaremadebythemillions,bothoutofglassandoutofplastics.Today'

slensesarebetterthanthebestlensesusedbythegreatphotographersofthepast.Moreover,theirpricemaylower,inspiteofthefactthat19thcenturycraftsmenworkedforonlyafewdollarsaweekandtoday'

slensesaremorecomplex.Thelensdesignercannotfailtobegratefulforthescienceandtechnologythathavemadehisworkeasierandhiscreationsmorewidelyavailable,butheisalsohumbled:

itisnolongerpracticalforafinephotographiclenstobedesignedfrombeginningtoendbyasinglehumanmind.

31.Lensdesignandchessplayingaresimilarinthat____.

A）thefinalgoalandthemeansbywhichitcanbereachedarekno

wn

B）perfectsolutionstoaproblemcanbefound

C）anyonedecisionatanypointalongthewaytothegoalcanbring

numerouspossibleresults

D）bothAandC

32.Thefinalgoalofdesigningalensis____.

A）totraptheopponent'

slenses

B）tofocuslightwithlenses

C）tohandmakelensesatlowcost

D）toreflectlightbymeansofcurvedsurfaces

33.Afterthepassagetheauthorwilltalkabout____.

A）theprinciplesofdesigninglenses

B）techniquesofmakingcontactlenses

C）thedesignofphotographiclenses

D）stylesoflenses

34.Whichofthefollowingwordscannotbeusedtodescribe

today'

slenses?

A）Moredelicate.C）Numerous.

B）Cheaper.D）Unpopular.

35.Lensdesignerstoday____.

A）havealargesourceofhelptofallbackon

B）receivealowsalary

C）arelessrespectablethanthoseofthepast

D）arenotdecisiveinthelensdesign

Questions36to40arebasedonthefollowingpassage:

PartⅠstartswithabriefintroductorychapterandthentakesupStyleandOrganization,coveringtheminthatorderbecauseskillorlackofskillinstyleaffectsallwriting,whilemuchtechnicalwritingissoshortastooffernoproblemsoforganization.ThesechaptersarefollowedbyoneonMechanics,coveringmattersofformthatarepeculiartotechnicalwritingorelsecropupinitwithabnormalfr