大学英语四级模拟题及答案之十.docx
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大学英语四级模拟题及答案之十.docx
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大学英语四级模拟题及答案之十
2014年大学英语四级模拟题及答案之十
PartⅡReadingComprehension(35minutes)
Directions:
Thereare4passagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.
Questions21to25arebasedonthefollowingpassage:
Increasingly,overthepasttenyears,people—especiallyyoungpeople—have
becomeawareoftheneedtochangetheireatinghabits,becausemuchofthefoodtheyeat,particularlyprocessedfoods,isnotgoodforhealth.Consequently,therehasbeenagrowinginterestinnaturalfoods:
foodswhichdonotcontainchemicaladditivesandwhichhavenotbeenaffectedbychemicalfertilizerswidelyusedinfarmingtoday.
Naturalfoods,forexample,arevegetables,fruitandgrainwhichhavebeen
growninsoilthatisrichinorganicmatter.Insimpleterms,thismeansthatthesoilhasbeennourishedbyunusedvegetablematter,whichprovidesitwithessentialvitaminsandminerals.Thisinitselfisanaturalprocesscomparedwiththeuseofchemicalsandfertilizers,themainpurposeofwhichistoincreasetheamountbutnotthequalityoffoodsgrownincommercialfarmingareas.
Naturalfoodsalsoincludeanimalswhichhavebeenallowedtofeedandmove
freelyinhealthypastures.Comparethiswithwhathappensinthemassproduction
ofpoultry:
therearebatteryfarms,forexample,wherethousandsofchickenslivecrowdedtogetherinonebuildingandarefedonfoodwhichislittlebetterthan
rubbish.Chickenskeptinthiswayarenotonlytastelessasfood;butalsoproduceeggswhichlackimportantvitamins.
Thereareotheraspectsofhealthyeatingwhicharenowreceivingincreasing
attentionfromexpertsondiet.Take,forexample,thequestionofsugar.Thisis
actuallyanonessentialfood!
Althoughanaturalalternative,suchashoney,can
beusedtosweetenfoodifthisnecessary,wecaninfactdowithoutit.Itis
notthatsugarisharmfulinitself.Butitdoesseemtobeadditive:
thequantity
weusehasgrownsteadilyoverthelastcenturiesandinBritaintodayeachpersonconsumesanaverageof200poundsayear!
Yetallitdoesisprovideuswithenergy,intheformofcalories.Therearenovitaminsinit,nomineralsandnofiber.
Itissignificantthatnowadaysfiberisconsideredtobeanimportantpart
ofahealthydiet.Inwhitebread,forexample,thefiberhasbeenremoved.But
itispresentinunrefinedflourandofcourseinvegetables.Itisinteresting
tonotethatincountrieswherethenationaldietcontainslargequantitiesofunrefinedflourandvegetables,certaindiseasesarecomparativelyrare.Hencetheemphasisisplacedontheeatingofwholemealbreadandmorevegetablesbymodernexpertson“healthyeating”.
21.Whichstatementbestexpressesthemainideaofthisarticle?
A)Peopleshouldeatanyfoodtokeepthemselveshealthyandstrong.
B)Peopleshouldeatnaturalfoodstokeepthemselveshealthyandstrong.
C)Peopleshouldeatfiberfoodstokeepthemselveshealthyandstrong.
D)Peopleshouldeatvegetablestokeepthemselveshealthyandstrong.
22.“Particularlyprocessedfoods”means____.
A)foodswhichareparticularlyprocessedbyaddingchemicaladditives
B)foodswhichareparticularlymadebycommercialfarms
C)foodswhicharespeciallyproducedbycommercialfactories
D)foodswhicharenotspeciallymadebyaddinganything
23.Naturalfoodsmeans____.
A)foodsgoodforhealth
B)foodsnotgoodforhealth
C)foodssuchasvegetables,fruitandgrainfromrichorganicmatterssoil
D)cropsfromrichorganicmatterssoilandmeatsofanimalsfromhealthy
pastures
24.Therearenovitamins,nomineralsandnofibersin____.
A)naturalfoodsC)sugar
B)animalmeatsD)fruit
25.“Yetallitdoesisprovideuswithenergy,intheformofcalories.”Itmeans____.
A)processedfoodprovidesuswithenergy
B)naturalfoodfurnishesuswithvitaminsandminerals
C)sugargivesusenoughenergyintheformofcalories
D)fiberhelpsustodigestfood
Questions26to30arebasedonthefollowingpassage:
Withatremendousroarfromitsrocketengine,thesatelliteissentupinto
thesky.Minuteslater,atanaltitudeof300miles,thistinyelectronicmoonbeginstoorbitabouttheearth.Itsradiobeginstotransmitanastonishingamount
ofinformationaboutthesatellite'sorbitalpath,theamountofradiationit
detects,andthepresenceofmeteorites.Informationofallkindsracesbackto
theearth.Nohumanbeingcouldpossiblycopydownallthesefacts,muchlessrememberandorganizethem.Butanelectroniccomputercan.
Themarvelofthemachineage,theelectroniccomputerhasbeeninuseonly
since1946.Itcandosimplecomputations—add,subtract,multiplyanddivide—with
lightingspeedandperfectaccuracy.Somecomputerscanwork500,000timesfaster
thananypersoncan.
Onceitisgivena“program”—thatis,acarefullyworkedoutsetofin
structionsdevisedbyatechniciantrainedincomputerlanguage—acomputerca
gatherawiderangeofinformationformanypurposes.Forthescientistitcan
getinformationfromouterspaceorfromthedepthoftheocean.Inbusinessandindustrythecomputerpreparesfactoryinventories,keepstrackofsalestrendsandproductionneeds,mailsdividendchecks,andmakesoutcompanypayrolls.Itcankeepbankaccountsuptodateandmakeoutelectricbills.Ifyouareplanningatripbyplane,thecomputerwillfindoutwhattotakeandwhatspaceisavailable.
Notonlycanthecomputergatherfacts,itcanalsostorethemasfastastheyaregatheredandcanpourthemoutwhenevertheyareneeded.Thecomputerisreallyahighpowered“memory”machinethat“hasalltheanswers”—oralmostall.Bes
idesgatheringandstoringinformation,thecomputercanalsosolvecomplicatedproblemsthatoncetookmonthsforpeopletodo.
Attimescomputersseemalmosthuman.Theycan“read”handprintedletters,
playchess,composemusic,writeplaysandevendesignothercomputers.Isitany
wonderthattheyaresometimescalled“thinking”machines?
Eventhoughtheyaretakingoversomeofthetasksthatwereonceaccomplishedbyourownbrains,computersarenotreplacingusatleastnotyet.Ourbrain
hasmorethan10millioncells.Acomputerhasonlyafewhundredthousandparts.
Forsometimetocome,then,wecansafelysaythatourbrainsareatleast10,
000timesmorecomplexthanacomputer.Howweusethemisforus,notthecomputer,todecide.
26.Inthefirstparagraph,theauthorthinksanelectroniccomputercan____.
A)copydownallthefacts
B)rememberallthefacts
C)organizethefactsandeverything
D)copydown,rememberandorganizeallthefacts
27.“Program”means____.
A)aplanofwhatistobedone
B)acompleteshowonaTVstationatafixedtimetable
C)ascheduledperformance
D)seriesofcodedinstructionstocontroltheoperationsofacomputer
28.Thecomputerisahighpowered“memory”machine,which____.
A)hasallthereadyanswers—oralmostalltoanyquestions
B)canremembereverything
C)canstoreeverythingandworkforyou
D)hasalltheanswers—oralmosttoalltheinformationthathasbeen
stored
29.“Thinking”machinessuggestthat____.
A)theycan“read”handprintedlettersetc
B)theyreallycanthinkanddomanyotherjobs
C)theyevendesignothercomputers
D)theycan'tthink,butcandosomethingunderhumancontrol
30.Cancomputersdowhatevertheywanttodo?
Why?
A)Yes,becausesomecomputerscanwork500,000timesfasterthananypersoncan.
B)No,becausetheynormallyhaveafewhundredthousandparts.
C)No,becausehumanbrainsareatleast10000timesmorecomplexthananycomputers.
D)No,becausehowacomputerworksisdecidedbyhuman.
Questions31to35arebasedonthefollowingpassage:
NooneexpressedthisattitudemorestronglythanNoahWebster(17581843).
BornnearNartford,Connecticut,hereceivedhiseducationatYaleCollegeandlaterbegantopractiselaw.Butbusinessinthisprofessionwasslow,andhewasforcedtoturntoteaching.Asateacher,hesoondiscoveredthattheEnglishschool
bookstheninusewereunsatisfactory,andtheAmericanRevolutionreducedthesupplyofsuchbooksastherewere.Websterthereforebegantoworkonthreesimple
booksonEnglish,aspellingbook,agrammar,andareader,andthesewerethefirstbooksoftheirkindtobepublishedinthiscountry.Thesuccessofthefirst
partwassurprisinglygreat.ItwassoonissuedagainunderthetitleTHEAMERICANSPELLINGBOOK,andinthisformabout80millioncopiesweresoldduringthe
nexthundredyears.Fromaprofitoflessthanonecentacopy,Webstergotmostofhisincomefortherestofhislife.Notonlydidthelittlebookhavegreatinfluenceonmanygenerationsofschoolchildren,butitalsohadtheeffectorturningitsauthor'sattentiontoquestionsoflanguage.In1806heproducedasmalldictionary,andthiswasfollowedbyhisgreatestwork,ANAMERICANDICTIONARYOF
THEENGLISHLANGUAGE,publishedintwovolumesin1828.Inbothoftheseworksandinmanysmallerwritingshehadonepurpose:
toshowthattheEnglsihlanguage
inhiscountrywasatrulyAmericanthing,developinginitsownspecialwayanddeservingtobeconsideredfromanindependent,Americanpointofview.Ashe
himselfwrote,“Itisnotonlyimportant,butinadegreenecessary,thatthepeopleofthiscountryshould
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