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第一篇:收音機RadioAutomation
Todaytheyareeverywhere.Productionlinescontrolledbycomputersandoperatedby
robots.There'snochatterofassemblyworkers,justthewhirrandclickofmachines.
Inthemid-1940s,theworkcrlcssfactorywasstillthestuffofsciencefiction.There
werenocomputerstospeakofandelectronicswasprimitive.Yethiddenawayinthe
EnglishcountrysidewasahighlyautomatedproductionlinecalledECME,which
couldturnout1500radioreceiversadaywithalmostnohelpfromhumanhands.
A
JohnSargrove,thevisionaryengineerwhodevelopedthetechnology,waswayahead
ofhistime.Formorethanadecade,Sargrovehadbeentryingtofigureouthowto
makecheaperradios.Automatingthemanufacturingprocesswouldhelp.Butradios
didn'tlendthemselvestosuchmethods:thereweretoomanypartstofittogetherand
toomanywirestosolder.Evenasimplereceivermighthave30separatecomponents
and8()hand-solderedconnections.Ateverystage,thingshadtobetestedand
inspected.Makingradiosrequiredhighlyskilledlabor-andlotsofit.
B
In1944,Sargrovecameupwiththeanswer.Uissolutionwastodispensewithmostof
thefiddlybitsbyinventingaprimitivechip-aslabofBakelitewithallthereceiver's
electricalcomponentsandconnectionsembeddedinit.Thiswassomethingthatcould
bemadebymachines,andhedesignedthoseloo.Attheendofthewar,Sargrovebuilt
anautomaticproductionline,whichhecalledECME(electronic
circuit-makingequipment),inasmallfactoryinEffingham,Surrey.
ECMELine
C
AnoperatorsatatoneendofeachECMEline,feedingintheplates.Shedidn'tneed
muchskill,onlyquickhands.Fromnowon,everythingwascontrolledbyelectronic
switchesandrelays.Firststopwasthesandbluster,whichroughenedthesurfaceof
theplasticsothatmoltenmetalwouldsticktoit.Theplateswerethencleanedto
removeanytracesofgrit.Themachineautomaticallycheckedthatthesurfacewas
roughenoughbeforesendingtheplatetothesprayingsection.There,eightnozzles
rotatedintopositionandsprayedmoltenzincoverbothsidesoftheplate.Again,the
nozzlesonlybegantospraywhenaplatewasinplace.Theplatewhizzedon.The
nextstopwasthemillingmachine,whichgroundawaythesurfacelayerofmetalto
leavethecircuitandothercomponentsinthegroovesandrecesses.Nowtheplatewas
acompositeofmetalandplastic.Itspedontobelacqueredandhaveitscircuitstested.
Bythetimeitemergedfromtheendoftheline,robothandshadfilleditwithsockets
toattachcomponentssuchasvalvesandloudspeakers.WhenECMEwasworkingflat
out,thewholeprocesstook20seconds.
D
ECMEwasastonishinglyadvanced.Electroniceyes,photocellsthatgeneratedasmall
currentwhenapanelarrived,triggeredeachstepintheoperation,soavoiding
excessivewearandtearonthemachineryTheplateswereautomaticallytestedateach
stageastheymovedalongtheconveyor.Andifmorethantwoplatesinsuccession
wereduds,themachineswereautomaticallyadjusted-orIfnecessaryhalted.Ina
conventionalfactory,workerswouldtestfaulty-circuitsandrepairthem.But
Sargrove'sassemblylineproducedcircuitssocheaplytheyJustthrewawaythefaulty
ones.Sargrove'scircuitboardwasevenmoreastonishingforthetime.Itpredatedthe
morefamiliarprintedcircuit,withwiringprintedonaboard,yetwasmore
sophisticated.Itsbuilt-incomponentsmadeitmorelikeamodemchip.
E
WhenSargroveunveiledhisinventionatameetingoftheBritishInstitutionofRadio
EngineersinFebruary1947,theassembledengineerswereimpressed.Sowasthe
manfromTheTimes.ECME,hereportedthefollowingday,"producesalmost
withouthumanlabour,acompleteradioreceivingset.Thisnewmethodofproduction
canbeequallywellappliedtotelevisionandotherformsofelectronicapparatus."
F
Thereceivershadmanyadvantagesovertheirpredecessors.Witcomponentsthey
weremorerobust.Robotsdidn'tmakethesortsofmistakeshumanassemblyworkers
sometimesdid."Wiringmistakesjustcannothappen/wroteSargrove.Nowiresalso
meanttheradioswerelighterandcheapertoshipabroad.Andwithnosolderedwires
tocomeunstuck,theradiosweremorereliable.Sargrovepointedoutthatthecircuit
boardsdidn'thavetobeflat.Theycouldbecurved,openinguptheprospectof
buildingtheelectronicsintothecabinetofBakeliteradios.
G
Sargrovewasallforintroducingthistypeofautomationtootherproducts.Itcouldbe
usedtomakemorecomplexelectronicequipmentthanradios,heargued.Andevenif
onlypartofamanufacturingprocesswereautomated,thesavingswouldbe
substantial.Butwhilehisinventionwasbrilliant,histimingwasbad.ECMEwastoo
advancedforitsowngood.Itwasonlycompetitiveonhugeproductionrunsbecause
eachnewjobmeantretoolingthemachines.Butdisruptionwasfrequent.
Sophisticatedasitwas,ECMEstilldependedonold-fashionedelectromechanical
relaysandvalves-whichfailedwithmonotonousregularity.ThestateofBritain's
economyaddedtoSargrove'stroubles.Productionwasdoggedbypowercutsand
post-warshortagesofmaterials.Sargrove'sfinancialbackersbegantogetcoldfeet.
H
TherewasanotherproblemSargrovehadn'tforeseen.OneofECME*sbiggest
advantages-thesavingsonthecostoflabour-alsoaccelerateditsdownfall.Sargrove's
factoryhadtwoECMEproductionlinestoproducethetwocircuitsneededforeach
radio.Betweenthemthesedidwhatathousandassemblyworkerswouldotherwise
havedone.Humanhandswereneededonlytofeedtherawmaterialinatoneendand
plugthevalvesintotheirsocketsandfittheloudspeakersattheother.Afterthat,the
onlyjobleftwastofitthepairofBakelitepanelsintoaradiocabinetandcheckthatit
worked.
I
Sargrovesawautomationasthewaytosolvepost-warlaborshortages.With
somewhatUtopianidealism,heimaginedhisnewtechnologywouldfreepeoplefrom
boring,repetitivejobsontheproductionlineandallowthemtodomoreinteresting
work."Don'tgettheideathatweareouttoiobpeopleoftheirjobs,1hetoldtheDaily
Mirror."Ourtaskistoliberatemenandwomenfrombeingslavesofmachines."
Theworkerssawthingsdifferently.Theyviewedautomationinthesamelightasthe
everlastinglightbulborthesuitthatneverwearsout-asathreattopeople's
livelihoods.Ifautomationspread,theywouldn'tbereleasedtodomoreexcitingjobs.
They'dbereleasedtojointhedolequeue.FinancialbackingforECMEfizzledout.
Themoneydriedup.AndBritainlostitsleadinatechnologythatwouldtransform
industryjustafewyearslater.
Question1-7
Summary
ThefollowingdiagramexplainstheprocessofECME:
CompletethefollowingchartoftheparagraphsofReadingPassage,usingnomore
thantwowordsfromtheReadingPassageforeachanswer.Writeyouranswersin
boxes1-7onyouranswersheet.
Question8-11
Summary
CompletethefollowingsummaryoftheparagraphsofReadingPassage,usingno
morethantwowordsfromtheReadingPassageforeachanswer.Writeyouranswers
inboxes8-11onyouranswersheet.
Sargrovehadbeendedicatedtocreatea8radiobyautomationofmanufacture.
Theoldversionofradiohadalargenumberofindependent9Afterthis
innovationmade,wireless-styleradiosbecame10andinexpensivetoexport
oversea.AstheSargrovesawit,therealbenefitofECME'sradiowasthatit
reduced11ofmanualwork.whichcanbeeasilycopiedtootherindustriesof
manufacturingelectronicdevices.
Cheaper、components、lighter、cost
Question12-13
Choosethecorrectletter,A,B,CorD.
Writeyouranswersinboxes12-13onyouranswersheet.
12WhatwereworkersattitudetowardsECMEModelinitially?A
Aanxious
Bwelcoming
Cboring
Dinspiring
13Whatisthemainideaofthispassage?C
Aapproachtoreducethepriceofradio
Banewgenerationoffullypopularproductsandsuccessfulbusiness
Canapplicationoftheautomationintheearlystage
DECMEtechnologycanbeappliedinmanyproductfields
篇章結構:
體裁說明文
題目收音機自動化一集成電路的先驅
結構Paragr叩h1:在電子技術極其落后的1940s,英國出現了收音機自動化生產
線…ECME.
A段:收音機并不特別適合用自動化流程生產。
B段:Sargrove是如何解決收音機不適合自動化生產的問題,從而導致ECME誕
生的。
C段:ECME生產線的各道工序介紹。
D段:ECME生產線的先進之處(自動啟動生產線、自動檢測、比primedcircuit
更早更先進)
E段:各界對于ECME生產線的評價。
F段:ECME生產出來的收音機相對于之前收音機的幾項優點。
G段:雖然ECME生產線可以被改造用于生產其他產品,但是它還是受很多因
素制約的(包括改造成本、配件的不可靠、當時英國經濟現狀)。
H段:ECME可以節約大量的勞動力,但是這卻成了它失敗的另一條原因。
I段:Sargrove認為ECME有助于解決勞動力短缺的問題,并將勞動力從無聊重
復的工作中解放出來。
J段:工人們認為ECME會不利于工人的就業。
參考答案:
l.chip2.grit3.moltenzinc4,millingmachine5.sockets
6.1oudspeakers7.valves8.cheaper9.componentslO.lighter
11.cost12.A13.C
第二篇:BondiBeach澳洲班迪沙灘
A
BondiBeach,Australia'smostfamousbeachislocatedinthesuburbofBondi,inthe
LocalGovernmentAreaofWaverlcy,sevenkilometersfromthecentreofSydney.
"Bondi"or"Boondi'1isanAboriginalwordmeaningwaterbreakingoverrocksorthe
soundofbreakingwaves.TheAustralianMuseumrecordsthatBondimeansplace
whereaflightofnullastookplace.
B
Theindigenouspeopleoftheareaboostawealthofuniqueculturesandtraditions.
Theaboriginalrockartisbelievedtobemosttypicalartform,consistingofrock
paintingsandrockengravings.TherearestillAboriginalrockcarvingsleftonthe
northernendofthebeachatBenBucklerandsouthofBondiBeachnearMcKenzies
Beachonthecoastalwalk.Later,theBritisharrivedinAustraliaandconstructedthe
firstsettlementinSydneyCoveon26January,1788.ThecategorynAboriginal
Australians1'wascoinedby(heBritishaftertheybegancolonisingAustralia,torefer
collectivelytoallpeopletheyfoundalreadyinhabitingthecontinent,andlatertothe
descendantsofanyofthosepeople.
C
Fromthemid-1800s,BondiBeachwasafavouritelocationforfamilyoutingsand
picnics.Thebeginningsofthesuburbgobackto1809,whentheearlyroadbuilder.
WilliamRobertsreceivedfromGovernorBlighagrantof81hectaresofwhatisnow
mostofthebusinessandresidentialareaofBondiBeach.In1851.EdwardSmithHall
andFrancisO'Brienpurchased200acresoftheBondiareathatembracedalmostthe
wholefrontageofBondiBeach,anditwasnamedthe"TheBondiEstate".Between
1855and1877O'BrienpurchasedHall'sshareoftheland,renamedthelandthe
"O'BrienEstate",andmadethebeachandthesurroundinglandavailabletothepublic
asapicnicgroundandamusementresort.Asthebeachbecameincreasinglypopular.
O'Brienthreatenedtostoppublicbeachaccess.However,theMunicipalCouncil
believedthattheGovernmentneededtointervenetomakethebeachapublicreserve.
D
Duringthe1900s,beachbecameassociatedwithhealth,leisureanddemocracy一a
playgroundeveryonecouldenjoyequallyBondiBeachwasaworkingclasssuburb
throughoutmostofthetwentiethcenturywithmigrantpeoplefromNewZealand
comprisingthemajorityofthelocalpopulation.Thefirsttramwayreachedthebeach
in1884.Followingthis,trambecamethefirstpublictransportationinBondi.Asan
alternative,thisactionchangedtherulethatonlyrichpeoplecanenjoythebeach.By
the1930sBondiwasdrawingnotonlylocalvisitorsbutalsopeoplefromelsewherein
Australiaandoverseas.AdvertisingatthetimereferredtoBondiBeachasthe
"PlaygroundofthePacific".
E
Thereisagrowingtrendthatpeoplepreferrelaxingnearseasideinsteadofliving
unhealthilyincities.Relatedresearchshowsthatspendingtimebytheoceanhas
manypositiveeffectsonhealthandwell-being.Whenyouputapersoninabeach
environment.1*It'snotgoingtobeanygreatsurprisetoyouthatpeoplerelax"said
studyresearcherMathewWhite,anenvironmentalpsychologistatSydney.According
tohisexperiment,oceanexposurecouldbeausefulformoftherapy.Thereforemore
peoplemovetoBondiinordertoexperienceahealthyandpurelife.Thebeautifuland
magnificentsceneryofBondiBeach一sapphirc-likcskyandtransparentsea,along
withpeoplewanderingonthesand,allcontributetoanincrediblepicture.Besides,
swimmingandsurfingarealsopopularanditwouldbetoostupidtowastethegifted
resources.
F
BondiBeachistheendpointoftheCitytoSurfFunRunwhichisheldeachyearin
August.Australiansurfcarnivalsfurtherinstilledthisimage.ARoyalSurfCarnival
washeldatBondiBeachfortheQueenElizabethIIduringherfirstvisittoAustralia
in1954.Since1867,therehavebeenoverfiftyvisitsbyamemberoftheBritish
RoyalFamilytoAustralia.Inaddition,theBondiBeachMarketisopeneverySunday.
ManywealthypeoplespendChristmasDayatthebeach.However,theshortageof
housesoccurswhenlotsofpeoplecrushtoseaside.Manlyistheseashoretownwhich
couldsolvethisproblem.However,peoplestillchooseBondiasthesatisfied
destinationratherthanManly.
G
BondiBeachhasacommercialareaalongCampbellParadeandadjacentsidestreets,
featuringmanypopularcafes,restaurants,andhotelsofvariousarchitecturalstyles,
withviewsofthecontemporarybeach.It"isdepictedaswhollymodemandEuropean.
Inthelastdecade,BondiBeach'suniquepositionhasseenadramaticriseinsvelte
housesandapartmentstotakeadvantageoftheviewsandscentofthesea.Thevalley
runningdowntothebeachisfamousworldwideforitsviewofdistinctiveredtiled
roofs.TheinspirationforbuildinghousearchitecturesisderivedfromtypicalBritish
coastaltowns.
H
BondiBeachhostedthebeachvolleyballeventatthe2000SummerOlympics.A
temporary10.000-scatstadium,amuchsmallerstadium.2warm-upcourtsand3
trainingcourtsweresetuptohostthetournament.TheBondiBeachStadiumwas
constructedforitandstoodforjustsixweeks.Campaignersopposeboththesocial
andenvironmentalconsequencesofthedevelopment.Thestadiumwilldividethe
beachintwoandseriouslyrestrictpublicaccessforswimming,walking,andother
formsofoutdoorrecreation.Peopleprotestfortheirhumanrightsofhavingapure
seasideandargueforhealthylifeinBondi.
I"Thcy'rcpreparedtorisktheBondiBeachenvironmentforthesakeofeightdaysof
volleyball"saidStephenUniacke,aconstructionlawyerinvolvedinthecampaign.
Otherenvironmentalconcernsincludethepossibilitythatsoildredgedupfrombelow
thesandwillacidifywhenbroughttothesurface.
Question1-5
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage1?
Inboxes1-5onyouranswersheet,write
TRUEifthestatementistrue
FALSEifthestatementisfalse
NOTGIVENiftheinformationisnotgiven
1.ThebeachgotitsnamefromtheBritishcolonists.F
2.TheindigenouscultureinAustraliavariesgreatlyfromtheEuropeanculture.NG
3.LivingnearBondiseashorewilldoharmtopeople'shealth.NG
4.ThehotelslocatedinBondiarebuiltincontemporarystyle.T
5.TheseasidetowninBondiisaffectedbyBritishcultureforitscharacteristicred
color.F
Question6-9
Answerthequestionsbelow.
ChooseNOMORETHANTWOWORDSAND/ORONENUMBERfromthe
passageforeachanswer
Writeyouranswersinboxes6-9onyouranswersheet
6.Whichkindofpublictransportationwasconstructedin19thcentury?Tram
7.WhendidQueenElizabethIIpayherfirstvisittoAustralia?1954
8.WhichsportgamedidBondiholdin2000SydneyOlympicGames?Beach
Volleyball
9.Accordingtooneproiesto^sview,whatwouldbedamagedifthestadiumwasbuilt?
Environment
Question10-13
CompletethefollowingsummaryoftheparagraphsofReadingPassage1.Choose
NOMORETHANTWOWORDSfromthereadingpassageforeachanswer.Write
youranswersinboxes10-13onyouranswersheet.
Despitethepopularityofsportsactivitiesinthewater,BondiMarketisalso
welcomedwhichattractslotsof10topayavisithereduringholidays.Dueto
theemergenceoflargecrowd,thelocalaccommodationcannotaffordthishuge
increase.Anearbytownnamed11couldbeasecondchoicewhilesome
peoplewouldstillprefer12asthebestlocation.Thecommercialdistrictof
BondiBeachischaracterizedbyallkindsofinterestingcafes,restaurantsandhostels.
Itsseasidebuildingsarcdistinguishedforthespecialcolored13oftypical
Britishstyle.
Wealthpeople,Manly,Bondi,tiledroofs
篇章結構:
(一句話概括每段大意)
A段:班迪海灘的地理位置及名字含義
B段:班迪海灘的起源
C段:班迪海灘的形成歷程
D段:班迪海灘的建設與發展
E段:班迪海灘存在的安全隱患以及應對措施
F段:在班迪海灘玩轉沖浪狂歡節等活動的舉行
G段:班迪海灘商業區的建筑擴展
H段:班迪海灘沙灘排球賽的主辦及導致的社會及環境后果
I段:對在班迪海灘主辦排球賽的抗議
答案:
l.FLASE2.NOTGIVEN3.NOTGIVEN4.TRUE5.FALSE
6.Tram7.19548.beachvolleyball9.Environment
lO.wealthypeople11.Manly12.Bondi13.tiledroofs
第三篇:Leaf?CuttingAntsandFungus切葉蟻和真菌
A)Theantsandtheiragriculturehavebeenextensivelystudiedovertheyears,but
therecentresearchhasuncoveredintriguingnewfindingsaboutthefungusthey
cultivate,howtheydomesticateditandhowtheycultivateitandpreserveitfrom
pathogens.Forexample,thefungusfarms,whichtheantswerethoughttokeepfree
ofpathogens,turnouttobevulnerabletoadevastatingmold,foundnowhereelsebut
inants'nests.Tokeepthemoldincheck,theantslongagomadeadiscoverythat
woulddocredittoanypharmaceuticallaboratory.
B)Leaf-cuttingantsandtheirfungusfarmsareamarvelofnatureandperhapsthe
bestknownexampleofsymbiosis,themutualdependenceoftwospecies.Theants,
achievementisremarkable-thebiologistEdward0.Wilsonhascalledit“oneofthe
majorbreakthroughsinanimalevolution'^——becauseitallowsthemtoeat,courtesy
oftheirmushroom'sdigestivepowers,theotherwisepoisonedharvestoftropical
forestswhoseleavesareladenwithterpenoids,alkaloidsandotherchemicalsdesigned
tosickenbrowsers.
C)Fungusgrowingseemstohaveoriginatedonlyonceinevolution,becauseall
gardeningantsbelongtoasingletribe,thedescendantsofthefirstfungusfanner.
Therearemorethan200knownspeciesoftheattineanttribe,dividedinto12groups,
orgenera.Theleaf-cuttersusefreshvegetation;theothergroups,knownasthelower
attinesbecauseIheirnestsaresmallerandtheirtechniquesmoreprimitive,feedtheir
gardenswithdetrituslikedeadleaves,insectsandfeces.In1994ateamoffour
biologists,UlrichG.MuellerandTedR.SchultzfromCornellUniversityandIgnacio
H.ChapclaandStephenA.RchncrfromtheUnitedStatesDepartmentofAgriculture,
analyzedtheDNAofantfunguses.Thecommonassumptionthatthefungusesareall
derivedfromasinglestrain,theyfound,wasonlyhalftrue.
D)TheIcaf-cuttcrs*funguswasindeeddescendedfiomasinglestrain,propagated
clonally,orjustbybudding,foratleast23millionyears.Butthelowerattineants
useddifferentvarietiesofthefungus,andinonecaseaquiteseparatespecies,thefour
biologistsdiscovered.CamcronR.Currie,aPh.D.studentintheUniversityofToronto,
itseemedtoMr.Currie,resembledthemonoculturesofvarioushumancrops,thatare
veryproductiveforawhileandthensuccumbtosomedisastrouspathogen,suchas
theIrishpotatoblight.Monocultures,whichlackthegeneticdiversitytorespondto
changingenvironmentalthreats,aresittingducksforparasites.Mr.Curriefeltthere
hadtobeaparasiteintheant-fungussystem.Butacenturyofantresearchofferedno
supportfortheidea.Textbooksdescribehowleaf-cutterantsscrupulouslyweedtheir
gardensofallforeignorganisms."Peoplekepttellingme,4Youknowtheantskeep
theirgardensfreeofparasites,don'tyou?'"Mr.Curriesaidofhiseffortstofinda
hiddeninterloper.
E)Butafterthreeyearsofsiftingthroughattineantgardens,Mr.Curriediscovered
theyarcfarfromfreeofinfections.Inlastmonth'sissueoftheProceedingsofthe
NationalAcademyofSciences,heandtwocolleagues,Dr.MuellerandDavid
Mairoch,isolatedseveralalienorganisms,particularlyafamilyofparasiticmolds
calledEscovopsis.Escovopsisturnsouttobeahighlyvirulentpathogenthatcan
devastateafungusgardeninacoupleofdays.Itbloomslikeawhitecloud,withthe
gardendimlyvisibleunderneath.Inadayortwothewholegardenis
enveloped.€40therantswon'tgonearitandtheantsassociatedwiththegardenjust
starvetodeath,"Dr.Rchncrsaid."Theyjustseemtogiveup,exceptfbrthosethat
haverescuedtheirlarvae.”
F)EvidentlytheantsusuallymanagetokeepEscovopsisandotherparasitesunder
conlrol.Butwithanylapseincontrol,oriftheantsareremoved,Escovopsiswill
quicklyburstforth.Althoughnewleaf-cuttergardensstartofffreeofEscovopsis,
withintwoyearssome60percentbecomeinfected.ThediscoveryofEscovopsis's
rolebringsanewlevelofunderstandingtotheevolutionoftheattineants."Inthelast
decade,evolutionarybiologistshavebeenincreasinglyawareoftheroleofparasites
asdrivingforcesinevolution,Dr.Schultzsaid.Thereisnowapossiblereasonto
explainwhythelowerattinespecieskeepchangingthevarietyoffungusintheir
mushroomgardens,andoccasionallydomesticatingnewones—tostayonestep
aheadoftherelentlessEscovopsis.
G)Interestingly,Mr.Curriefoundthattheleaf-cuttershadingeneralfeweralien
moldsintheirgardensthanihelowerattines,yettheyhadmoreEscovopsisinfections.
Itseemsthatthepricetheypayforcultivatingapurevarietyoffungusisahigherrisk
fromEscovopsis.Buttheleaf-cuttersmayhavelittlealternative:theycultivatea
specialvarietyoffunguswhich,unlikethosegrownbythelowerattincs,produces
nutritiousswollentipsfortheantstoeat.
H)Discoveryofathirdpartnerintheant-fungussymbiosisraisesthequestionof
howtheattineants,especiallytheleaf-cutters,keepthisdangerousinterloperunder
control.Amazinglyenough,Mr.Curriehasagainprovidedtheanswer.U4Peoplehave
knownforahundredyearsthatantshaveawhitishgrowthonthecuticle,saidDr.
Mueller,referringtotheinsects?bodysurface."Peoplewouldsaythisislikea
cuticularwax.ButCameronwasthefirstoneinahundredyearstoputthesethings
underamicroscope.Hesawitwasnotinertwax.Itisalive."Mr.Curriediscovereda
specialisedpatchontheants,cuticlethatharborsaparticularkindofbacterium,one
wellknowntothepharmaceuticalindustry,becauseitisthesourceofhalfthe
antibioticsusedinmedicine.Fromeachof22speciesofattineantstudied,
Mr.CameronandcolleaguesisolatedaspeciesofStreptomycesbacterium,they
reportedinNatureinApril.TheStreptomycesdoesnothavemucheffectonordinary
laboratoryfunguses.ButitisapotentpoisonerofEscovopsis,inhibitingitsgrowth
andsuppressingsporeformation.Becauseboththeleaf-cuttersandthelowerattines
useStreptomyces,thebacteriummayhavebeenpartoftheirsymbiosisforalmostas
longastheEscovopsismold.Ifso,someAlexanderFlemingofanantdiscovered
antibioticsmillionsofyearsbeforepeopledid.Evennow,theantsarcaccomplishing
twofeatsbeyondthepowersofhumantechnology.Theleaf-cuttersaregrowinga
monoculturalcropyearafteryearwithoutdisaster,andtheyareusinganantibiotic
apparentlysowiselyandprudentlythat,unlikepeople,theyarenotprovoking
antibioticresistanceinthetargetpathogen.
Questions14-19
Usetheinformationinthepassagetomatchtheoptions(listedA-C)withtheactivities
orfeaturesofantsbelow.
Writetheappropriateletters,A-C,inboxes14-19onyouranswersheet.
NBYoumayuseanylettermorethanonce.
ALeaf-cuttinJgants
BLowerattineants
CBothleaf-cuttingantsandlowerattineants
14canusetoxicleavestofeedfungusA
15buildsmallnestsandlivewithdifferentforeignfungusB
16usedeadvegetationtofeedfungusB
17raiseasinglefunguswhichdonotlivewithothervarietyofforeignersA
18normallykeepahighlydangerousparasiteundercontrolA
19usespecialstrategiestofightagainstEscovopsisC
Questions20-24
ReadingPassage2haseightparagraphs,A-H.
WhichparagraphcontainsIhefollowinginformation?
Writethecorrectletter,A-H,inboxes20-24onyouranswersheet.
20DangerousoutcomeofEscovopsisE
21RiskofgrowingsinglefungusD
22Comparisonofthefeaturesoftwodifferentnestsforfeedinggardens
23Discoveryofsignificantachievementsmadebyantsearlierthanhuman
24Advantagesofgrowinganewbreedoffungusintheantfarm
Questions25-26
Choosethecorrectletter,A,B,CorD.
Writeyouranswersinboxes25-26onyouranswersheet.
25WhatdocstheauthorthinkofCurrie'sopiniononthesaying“antskeeptheir
gardensfreeofparasites”?A
AHisviewpointwasverifiedlater.
BHisearlierstudyhassufficientevidenceimmediately.
CThereisnodetailmentionedinthearticle.
DHisopinionwasprovedtobewronglateron.
26Whatdidscientistsfindontheskinofantsundermicroscope?C
Asomewhitecloudmoldembedintheirskin
Bthatwaxisallovertheirskin
Casubstancewhichisusefultohumans
Dasubstancewhichsuppressesgrowthofallfungus
題目詳解
Questions14-19
14.利用題目細節信息“toxiclcaves,,和“feedfungus''定位于原文段落B末句
44becauseitallowsthemtoeat,courtesyoftheirmushroom'sdigestivepowers,theotherwise
poi-sonedharvestoftropicalforestswhoseleavesareladenwithterpenoids,alkaloidsandother
chemicalsdesignedtosickenbrowsers”。這道題的難點在于找到題目中“feedfungus”所對
應的原文。文中說到"theotherwisepoisonedharvestoftropicalfbrestswhoseleaves
arcladenwithterpenoids,alkaloidsandotherchemicalsdesignedtosickenbrowsers”,既然熱帶
雨林中的葉子有毒,切葉蟻為什么還要收集而且不會中毒呢?那是因為真菌的消化作用
(mushroom'sdigestivepowers)。此外,文章C段還提到"Theleaf-cuttersusefresh
vegelalion(切葉蟻使用新鮮的植被養活自己的真菌園)”,所以切葉蟻收集有毒的樹葉是為了
飼養真菌。因此,正確答案為Ao
15.利用題目細節信息“smallnests“、"different”和“foreign”定位于原文C段第3
句與D段第2句。C段第3theothergroups,knownasthelowerattinesbecausetheir
nestsarcsmallerandtheirTechniquesmoreprimitive”,這里講的是“它們的巢較小且種植技
術更原始,被稱為lowerattines”。原文中的“nestsaresmaller”對應題目中的“small
nests”。但本段未出現題目中的后半部分信息,需要接著往下看。D段第2句“Butihe
lowerattineantsuseddifferentvarietiesofthefungus”,這里說"lowerattine螞蟻使用不同種
類的真菌”。原文中的“differentvarietiesofthefungus”對應題目中的“differentforeign
fungus”。結合原文內容,此處
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