说明议论h.docx

说明议论h.docx

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说明议论h

Beforebirth,babiescantellthedifferencebetweenloudsoundsandvoices.Theycanevendistinguishtheirmother’svoicefromthatofafemalestranger.Butwhenitcomestoembryoniclearning（胎教）,birdscouldruletheroost.AsrecentlyreportedinTheAuk:

OrnithologicalAdvances,somemotherbirdsmayteachtheiryoungtosingevenbeforetheyhatch（孵化）.New-bornchickscanthenimitatetheirmom’scallwithinafewdaysofenteringtheworld.

Thiseducationalmethodwasfirstobservedin2012bySoniaKleindorfer,abiologistatFlindersUniversityinSouthAustralia,andhercolleagues.FemaleAustraliansuperbfairywrenswerefoundtorepeatonesoundoverandoveragainwhilehatchingtheireggs.Whentheeggswerehatched,thebabybirdsmadethesimilarchirptotheirmothers—asoundthatservedastheirregular“feedme!

”call.

Tofindoutifthespecialqualitywasmorewidespreadinbirds,theresearcherssoughtthered-backedfairywren,anotherspeciesofAustraliansongbird.Firsttheycollectedsounddatafrom67nestsinfoursitesinQueenslandbeforeandafterhatching.Thentheyidentifiedbeggingcallsbyanalyzingtheorderandnumberofnotes.Acomputeranalysisblindlycomparedcallsproducedbymothersandchicks,rankingthembysimilarity.

Itturnsoutthatbabyred-backedfairywrensalsoemergechirpingliketheirmoms.Andthemorefrequentlymothershadcalledtotheireggs,themoresimilarwerethebabies’beggingcalls.Inaddition,theteamsetupaseparateexperimentthatsuggestedthatthebabybirdsthatmostcloselyimitatedtheirmom’svoicewererewardedwiththemostfood.

Thisobservationhintsthateffectiveembryoniclearningcouldsignalneurological（神经系统的）strengthsofchildrentoparents.Anevolutionaryinferencecanthenbedrawn.“Asaparent,doyouinvestinqualitychildren,ordoyouinvestinchildrenthatareinneed?

”Kleindorferasks.“Ourresultssuggestthattheymightbegoingforquality.”

58.TheunderlinedphraseinParagraph1means“”.

A.betheworstB.bethebest

C.betheasbadD.bejustasgood

59.WhatareKleindorfer’sfindingsbasedon?

A.Similaritiesbetweenthecallsofmomsandchicks.

B.TheobservationoffairywrensacrossAustralia.

C.ThedatacollectedfromQueensland’slocals.

D.Controlledexperimentsonwrensandotherbirds.

60.Embryoniclearninghelpsmotherbirdstoidentifythebabybirdswhich.

A.canreceivequalitysignalsB.areinneedoftraining

C.fittheenvironmentbetterD.maketheloudestcall

C

Anewcommoditybringsaboutahighlyprofitable,fast-growingindustry,urgingantitrust（反垄断）regulatorstostepintocheckthosewhocontrolitsflow.Acenturyago,theresourceinquestionwasoil.Nowsimilarconcernsaresbeingraisedbythegiants（巨头）thatdealindata,theoilofthedigitalage.ThemostvaluablefirmsareGoogle,Amazon,FacebookandMicrosoft.Alllookunstoppable.

Suchsituationshaveledtocallsforthetechgiantstobebrokenup.Butsizealoneisnotacrime.Thegiants’successhasbenefitedconsumers.Fewwanttolivewithoutsearchenginesoraquickdelivery.Farfromchargingconsumershighprices,manyoftheseservicesarefree（userspay,ineffect,byhandingoveryetmoredata）.Andtheappearanceofnew-borngiantssuggeststhatnewcomerscanmakewaves,too.

Butthereiscauseforconcern.Theinternethasmadedataabundant,all-presentandfarmorevaluable,changingthenatureofdataandcompetition.Googleinitiallyusedthedatacollectedfromuserstotargetadvertisingbetter.Butrecentlyithasdiscoveredthatdatacanbeturnedintonewservices:

translationandvisualrecognition,tobesoldtoothercompanies.Internetcompanies’controlofdatagivesthemenormouspower.Sotheyhavea“God’seyeview”ofactivitiesintheirownmarketsandbeyond.

Thisnatureofdatamakestheantitrustmeasuresofthepastlessuseful.BreakingupfirmslikeGoogleintofivesmalloneswouldnotstopremakingthemselves:

intime,oneofthemwouldbecomegreatagain.Arethinkisrequired—andasanewapproachstartstobecomeapparent,twoideasstandout.

Thefirstisthatantitrustauthoritiesneedtomoveformtheindustrialageintothe21stcentury.Whenconsideringamerger（兼并）,forexample,theyhavetraditionallyusedsizetodeterminewhentostepin.Theynowneedtotakeintoaccounttheextentoffirms’dataassets（资产）whenassessingtheimpactofdeals.Thepurchasepricecouldalsobeasignalthatanestablishedcompanyisbuyinganew-bornthreat.Whenthistakesplace,especiallywhenanew-borncompanyhasnorevenuetospeakof,theregulatorsshouldraiseredflags.

Thesecondprincipleistoloosenthecontrolthatprovidersofon-lineserviceshaveoverdataandgivemoretothosewhosupplythem.Companiescouldbeforcedtoconsumerswhatinformationtheyholdandhowmanymoneytheymakeformit.Govemmentscouldorderthesharingofcertainkindsofdata,withusers’consent.

RestartingantitrustfortheinformationagewillnotbeeasyButifgovemmentsdon’twantsadataoconomybyafewgiants,theymustactsoon.

61.Whyisthereacalltobreakupgiants?

A.Theyhavecontrolledthedatamarket

B.Theycollectenormousprivatedata

C.Theynolongerprovidefreeservices

D.Theydismissedsomenew-borngiants

62.WhatdoesthetechnologicalinnovationinParagraph3indicate?

A.Datagiants’technologyisveryexpensive

B.Google’sideaispopularamongdatafirms

C.Datacanstrengthengiants’controllingposition

D.Datacanbeturnedintonewservicesorproducts

63.Bypayingattentiontofirms’dataassets,antitrustregulatorscould.

A.killanewthreatB.avoidthesizetrap

C.favourbiggerfirmsD.chargehigherprices

64.Whatisthepurposeoflooseningthegiants’controlofdata?

A.Bigcompaniescouldrelievedatasecuritypressure.

B.Governmentscouldrelievetheirfinancialpressure.

C.Consumerscouldbetterprotecttheirprivacy.

D.Smallcompaniescouldgetmoreopportunities.

D

OldProblem,NewApproaches

Whilecleanenergyisincreasinglyusedinourdailylife,globalwarningwillcontinueforsomedecadesafterCO2emissions（排放）peak.Soevenifemissionsweretobegintodecreasetoday,wewouldstillfacethechallengeofadaptingtoclimatechange.HereIwillstresssomesmarterandmorecreativeexamplesofclimateadaptation.

Whenitcomestoadaptation,itisimportanttounderstandthatclimatechangeisaprocess.Wearethereforenottalkingaboutadaptingtoanewstandard,buttoaconstantlyshiftingsetofconditions.Thisiswhy,inpartatleast,theUSNationalClimateAssessmentsaysthat:

“Thereisno‘one-sizefitsall’adaptation.”Nevertheless,therearesomeactionsthatoffermuchandcarrylittleriskorcost.

Aroundtheworld,peopleareadaptinginsurprisingways,especiallyinsomepoorcountries.FloodshavebecomemoredamaginginBangladeshinrecentdecades.MohammedRezwansawopportunitywhereotherssawonlydisaster.Hisnot-for-profitorganizationruns100riverboatsthatserveasfloatinglibraries,schools,andhealthclinics,andareequippedwithsolarpanelsandothercommunicatingfacilities.Rezwaniscreatingfloatingconnectivity（连体）toreplacefloodedroadsandhighways.Butheisalsoworkingatafarmorefundamentallevel:

hisstaffshowpeoplehowtomakefloatinggardensandfishpondspreventstarvationduringthewetseason.

ElsewhereinAsiaevenmoreastonishingactionsarebeingtaken.ChewangNorphellivesinamountainousregioninIndia,whereheisknownastheIceMan.Thelossofglaciers（冰川）thereduetoglobalwarmingrepresentsanenormousthreattoagriculture.Withouttheglaciers,waterwillarriveintheriversattimeswhenitcandamagecrops.Norphel’sinspirationcamefromseeingthewasteofwateroverwinter,whenitwasnotneeded.Hedirectedthewastedwaterintoshallowbasinswhereitfroze,andwasstoreduntilthespring.Hisfieldsoficesupplyperfectlytimedirrigation（灌溉）water.Havingcreatedninesuchicereserves,Norphelcalculatesthathehasstoredabout200,000m3ofwater.Climatechangeisacontinuingprocess,soNorphel’sicereserveswillnotlastforever.Warmingwillovertakethem.Butheisprovidingafewyearsduringwhichthefarmerswill,perhaps,beabletofindothermeansofadapting.

IncreasingEarth’sreflectivenesscancooltheplanet.InsouthernSpainthesuddenincreaseofgreenhouses（whichreflectlightbacktospace）haschangedthewarmingtrendlocally,andactuallycooledtheregion.WhileSpainasawholeisheatingupquickly,temperaturesnearthegreenhouseshavedecreased.Thisexampleshouldactasaninspirationforallcities.Bypaintingbuildingswhite,citiesmayslowdownthewarmingprocess.

InPeru,localfarmersaroundamountainwithaglacierthathasalreadyfallenvictimtoclimatechangehavebegunpaintingtheentiremountainpeakwhiteinthehopethattheaddedreflectivenesswillrestorethelife-givingice.Theoutcomeisstillfarfromclear.ButtheWorldBankhasincludedtheprojectonitsof"100ideastosavetheplanet”.

Moreordinaryformsofadaptationarehappeningeverywhere.AfriendofmineownsanareaoflandinwesternVictoria.Overfivegenerationsthelandhasbeentoowetforcropping.Butduringthepastdecadedecliningrainfallhasallowedhimtoplanthighlyprofitablecrops.Farmersinmanycountriesarealsoadaptinglikethis—eitherbygrowingnewproduce,orbygrowingthesamethingsdifferently.Thisiscommonsense.Butsomesuggestionsforadaptingarenot.Whenthepollutingindustriesarguethatwe’velostthebattletocontrolcarbonpollutionandhavenochoicebuttoadapt,it’sanonsensedesignedtomakethecaseforbusinessasusual.

Humanbeingswillcontinuetoadapttothec