广东省深圳某中学2024-2025学年高三年级上册第三次月考英语试题（含答案）

深圳外国语学校高中园2025届高三年级第三次月考英语

（全卷满分120分，考试用时120分钟）

第一部分阅读（共两节，满分50分）

第一节（共15小题;每小题2.5分，满分37.5分）

阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。

A

TherehavebeenmanygreatpaintersintherichhistoryofChineseart.Herearefourofthegreatestpainters

fromChina.

LiCheng（919-967）

LiChengcontributedgreatlytooneofthegoldenagesoflandscapepaintingsinworldhistory.Duringhis

time,hewasconsideredthebestlandscapepainterever.Heisrememberedespeciallyforthewinterlandscapeshe

createdandforsimplecompositionoftall,oldevergreenssetagainstadrylandscape.Severalofhispaintingsarein

diluted（稀释的）inkwhichgivesthemafoggyappearance.

FanKuan（950-1032）

FanKuanbeganhiscareerbymodelinghisworksonthoseofLiChengbutlatercreatedhisownstyle

claimingthattheonlytrueteacherwasnature.HisfinestworkTravelersAmongMountainsandStreamsisa

masterpieceoflandscapepaintingandmanyfutureartiststurnedtoitforinspiration.

QiBaishi（1864-1957）

OneofthegreatestcontemporaryChinesepainters,QiBaishiisknownfornotbeinginfluencedbyWestern

styleslikemostofthepaintersofhistime.HecanbeconsideredasthelastgreattraditionalpainterofChina.Qi

Baishipaintedalmosteverythingfrominsectstolandscapes.HeisregardedhighlyinChineseartforthefreshness

andspontaneity（自然）thathebroughttothefamiliartypesofinsects,birdsandflowers.

WuGuanzhong（1919-2010）

WidelyconsideredasthefounderofmodemChinesepainting,WuGuanzhonghaspaintedvariousaspectsof

China,likeitsarchitecture,plants,animals,peopleandlandscapes.Wuwasinfluencedbypost-impressionistart,an

importantwesternmovement,andwentontocombineWesternandChinesestylestocreateauniqueformof

modemart.In1992,hebecamethefirstlivingChineseartistwhoseworkwasexhibitedattheBritishMuseum.

1.WhatdoweknowaboutFanKuan?

A.Hecopiedmanyartists'works.B.Hismasterpiecewasinspiring.

C.Hisworksgainedworldwiderecognition.D.Hecreatedhisownstylefromtheverybeginning.

2.WhatisonefeatureofWuGuanzhong?spaintings?

A.Theyhavefoggyappearances.B.Theyfocusonasingletheme.

C.TheycomeunderWesterninfluence.D.Theyshowtraditionalpaintingskills.

3.WhatdidthefourChinesepaintershaveincommon?

A.Theyallcreatedlandscapepaintings.

B.TheywereallinfluencedbyWesternart.

C.TheywereallpioneersinChinesearthistory.

DTheirworkswereallexhibitedattheBritishMuseum.

B

TheMalagasybaobabtree,whosethicktrunksandtinybranchesdotMadagascar,slandscape,shouldnot,by

rights,havesurvivedtothepresentday.Scientistsbelievethatitslargeseedswereoncespreadbythegiant

tortoisesandlemurmonkeysthatwanderedtheisland.Whenthesespecieswentextinctoveronethousandyears

agoowingtohumanactivity,thebaobabtreeshouldhavedisappearedtoo.Itdidnot.SehenoAndriantsaralazaat

theUniversityofAntananarivoandOnjaRazafindratsimaattheUniversityofCalifornia,nowthinktheymayknow

thereasonwhy.

Togetherwiththeircolleagues,thescientistsmonitored15treecanopies（树冠）inawesternregionof

Madagascar,toidentifyanyanimalsthatmighthaveclaimedtheroleofbaobab-seedspread.Theresearchersalso

setupcameratrapsaroundseed-containingfruitslyingontheground,andsearchedanyfaeces（粪便）thatthey

encounteredalongthewayforthepresenceofseeds.

TheyreportinthejournalBiotropicathatanativerodent（啮齿动物）knownasthewesternbunch-tailedrat

wascaughtoncamerahandlingwholefruitsonfouroccasions.Althoughtherewasnofootageoftheratbreaking

thefruitsopen,theteamdidchanceupon13fruitsthathadbeenchewedintoandhadtheirseedsremoved.Though

thebitemarkswerenotclearenoughtoidentifyaninitiator,thiswasclearevidencethataseed-distributinganimal

wasoutthere.Theythenfoundtheecologicalequivalentofasmokinggun:baobabseedsinsevendifferentpilesof

bush-pigfaces.

Whilethefindingisimportantinitsownright,italsoprovidesvaluableevidencethatintroducedspeciesmay

notbeentirelyharmful.Madagascar9spigs,forexample,thoughnotnative,havemadethemselvesessentialtothe

survivaloftrulynativespecies.SimilarrelationshipsaresuspectedtoholdinSouthAmericabetweenrabbitsnative

toEuropeandplantswithnoseeddistributors.ForDrAndriantsaralaza,thatsuggeststhefullecologicalroleof

introducedspeciesshouldbeconsideredbeforetalkofextinctionbegins.

4.Whatmadescientiststhinkthebaobabtreeshouldhavedisappeared?

A.Theextinctionofitsseedspreader.B.Thedestructionofhumanactivities

C.Theinadaptationofthebaobabtree.D.Theincreaseofitsnaturalenemies.

5.Whatarecameratrapsusedfor?

A.Seekingseed-containingfruits.B.Trackingthefootprintsofseeds.

C.Recordingtheanimals'activities.D.Monitoringthebaobabtreecanopies.

6.Whichismostprobablytheseed-eateraccordingtothereport?

A.ThegianttortoiseB.Thebunch-tailedrat.

C.TheEuropeanrabbit.D.Thebush-pig.

7.Whatistheauthor5spurposeinwritingthetext?

A.Tointroduceanewwaytoprotectthebaobabtree.

B.Toshownon-nativespeciesarenotalwaysharmful.

C.Tocomparedifferentkindsofseed-distributingmethods.

D.Toexplaintheimportanceofprotectingendangeredspecies.

C

Aspartofeffortstopreservetheancientculture,aregionalbookcenterannouncedthatithaduploadedrare

ancientbookswithover20,000pagesonanonlineplatformoftheXizangLibrary.Userscansearch,copyand

downloadthevaluablebooksforfreefromtheplatform,whichincludesbiographiesofXizangscholarsandthe

historyofXizangandBuddhism,spanningfromthe12thtothe20thcenturies.

In2009,Xizanglauncheditslargestsurveyofancientbooks.Sincethen,researchershavetraveledtoevery

comeroftheregionthatcoversmorethan1.2millionsquarekilometers,withthegoalofpreservingeverylastancient

book.Aspartofthesurveywork,abookdiscoveredbyresearchersprovedthatthehistoryofXizangengraving

printing（雕亥!IEfl刷）stretchedtoatleastacenturyearlierthanpreviousresearchhadindicated.

Meanwhile,consideringthepreciousancientbooksasafragileculturalresource,thecenterhasadoptedalotof

advancedtechniquessuchasnoncontacthigh-definitionscanningtopreventanydamagetotheoriginalmanuscripts.

Expertshavealsoemployedspecialtechniquestoprocesstheoriginalpicturesinbookswiththepurposeof

preventingpiracy（盗版彳亍为）andotherimproperuse.Qungda,anelderlyresidentintheregionalcapital,Lhasa,is

surprisedattheconvenience.Afterreadingseveralarticlesonacellphone,hesaystheplatformnotonlymakesit

convenientforreaders,butalsorepresentsancreativewayofprotectingandusingancientbooks.

SinceitstrialoperationonApril25,2020,theplatformhasreceivednearly100,000visits,settingarecordfor

thelibrarywebsite.Itplaysaleadingroleinthecountry'sdigitalonlinesharingofancientXizangbooks,butthere

isstillalongwaytogo.Italsoexpectstoreceivesuggestionsandfeedbackfromscholarsandthepublictohelpdeal

withissuessuchasdigitalidentificationofthebooks.

8.WhatcanusersinterestedinXizangdoontheplatform?

A.ResearchXizangculture.B.Accessrareancientbooks.

C.PublicizeXizangscholars.D.Purchasecopiesofoldbooks.

9.Whatdidtheresearchersdo?

A.Theyconfirmedthenumberofancientbooks.

B.Theyrestoreddamagedpicturesinancientbooks.

C.TheyidentifiedtheancientmanuscriptsinXizang.

D.TheyfoundalongerhistoryofXizangengravingprinting.

10.Whyhasthecenterusedhightechniques?

A.Toprotectvaluableancientbooks.B.Tostoreoriginalpicturesinphones.

C.Tomakeancientbooksmuchclearer.D.Tospeedupthedigitalizationprocess.

11.Whatdoesthefutureholdforthedigitalplatform?

A.Itwillbreaknewlibraryrecords.B.Itwillattractmorewebsitevisits.

C.Itwillcollectmoreancientbooks.D.Itwillwelcomeadviceandfeedback.

D

Superhumanartificialintelligencehasplayedaroleinourlife.Whenitcomestoplayinggameslikechess,or

solvingdifficultscientificchallengeslikepredictingproteinstructures,computersarewellaheadofhumans.But

wehaveonesuperpowertheyaren'tclosetomastering:mindreading.

Weareblessedwithamysteriousabilitytoreasonthegoals,desiresandbeliefsofothers,acrucialskillthat

meanswecananticipateotherpeople'sactionsandtheconsequencesofourown.IfAisaretobecometrulyuseful

ineverydaylife-tocooperateeffectivelywithusortounderstandthatachildmightrunintotheroadaftera

bouncingball-wehavetogivethemthisgiftthatevolutionhasgivenustoreadotherpeople'sminds.

Inpsychology,theabilitytoinferanother?smentalstateisreferredtoastheoryofmind.Inhumans,this

capacitydevelopsataveryyoungage.Howtoreproducethecapabilityinmachinesisfarfromclear,though.One

ofthemainchallengesiscontext.Forinstance,ifsomeoneaskswhetheryouaregoingforarunandyoureply

“it'sraining”,theycanquicklyconcludetheanswerisno.Butthisrequireshugeamountsofbackground

knowledgeaboutrunning,weatherandhumanpreferences.

Besides,whetherhumansorAI,thetheoryofmindissupposedtoemergenaturallyfromone'sownlearning

process.BuildingpriorknowledgeintoAImakesitreliantonourimperfectunderstandingoftheoryofmind.In

addition,AImaybecapableofdevelopingapproacheswecouldneverimagine.Therecanbemanyformsoftheory

ofmindthatwedon'tknowaboutsimplybecauseweliveinahumanbodythathascertaintypesofsensesanda

certainabilitytothink.

ButwemightstillwantAItohaveamorehuman-likeformoftheoryofmind.Humanscanclearlyexplain

theirgoalstoeachotherusingcommonlanguageandideas.WhilelettingAIformthetheoryofmindintheir

learningprocessislikelytoleadtodevelopingmorepowerfulAI,plainlybuildinginsharedwaystorepresent

knowledgemaybecrucialforhumanstotrustandcommunicatewithAL

Itisimportanttoremember,though,thatthepursuitofmachineswiththeoryofmindisaboutmorethanjust

buildingmoreusefulrobots.ItisalsoasteppingstoneonthepathtowardsadeepergoalforAIandrobotics

research:buildingtrulyself-awaremachines.Whetherwewillevergetthereremainstobeseen.Butalongtheway

thinkingaboutotherpeopleandotheragents,weareonthepathtolearningtothinkaboutourselves.

12.Accordingtothepassage,whichofthefollowingcontextscanAIunderstandwell?

A.Whenaskedwhereanobjectis,anaughtykidpointsinthewrongdirection.

B.Whenateacherasksforaboy'shomework,heanswers“mydogateit”.

C.Whenyouaretreatedwithahotpotfordinner,youreply“asorethroat”.

D.Whenamomtellsherkidmilkisgoodforhealth,thekiddrinksitup.

13.WhichstatementwilltheauthoragreewithmostaboutAl'stheoryofmind?

A.AIhasalreadymasteredtheabilitytoreadhumanminds.

B.ThedevelopmentofAI5stheoryofmindheavilyreliesonhuman9sunderstandingofit.

C.AI5stheoryofmindcanappearnaturallywithoutanyhumanintervention.

D.AFstheoryofmindissuperiortohuman5sinallforms.

14.Whatistheauthor5sattitudetowardtrulyself-awaremachines?

A.Ambiguous.B.Conservative.C.Skeptical.D.Approving.

15.Whichwouldbethebesttitleforthepassage?

A.AFsTheoryofMindWillDefineOurFuture

B.AIwithItsOwnTheoryofMindIsExpected

C.Al'sTheoryofMind-aBlessingorSufferingtoHumans

D.TheoryofMindBridgestheGapBetweenHumansandAI

第二节（共5小题;每小题2.5分，满分12.5分）

阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为

多余选项

Anytimeofthedayyoucancommittoexercisingisagoodtimeforgettingactive.Thebesttimeforexercise

isdifferentforeachperson.16Herearesometipstohelpyou.

Determineyourmostenergetictime.Youmaybeanightowlandnevergettobedbeforemidnight,struggling

togetoutofthebedinthemorning.Ifyou'resuchaperson,don'tscheduleearlyworks.You'lllikelyhitsnooze.

Sacrificingsleepforworkoutscanleadtopoorperformanceandmakeithardtoformaroutine.17

Consideryourdailyschedule.Howdoyouscheduleyourmostimportanttasks?Somepeoplewouldpreferto

getthemoutofthewayfirstthing,whileothersprefertoputthemoffuntiltheendoftheday.18However,

aneveningexercisecouldbemoresuitablewhenyourmorningsaretoobusyandyoustruggletoleaveontime.

19Yourhouseoffersthemostflexibletimeoptionswhenyouownfitnessequipment.Havingagym

downthestreetoralongtheroutehomefromworkalsomakesitconvenienttofitinaworkout.

Determineyourexercisegoals.Areyoutryingtodevelopaconsistentexerciseroutine,improveyour

performance,orloseweight?20Afternoonoreveningexercisecanenhanceyourperformance.Asfor

losingweight,itmaybebettertoexerciseinthemorningbeforeyouhaveeaten.

A.Takethelocationintoaccount.

B.Thinkaboutyourdailyactivities.

C.Exerciseinthemorninghelpsdeveloparoutine.

D.Inshortputexerciseasthetoppriorityinyourdailyschedule.

?

E.Thus,you'dbetterestablishyoursleeptendenciesbeforehand.

F.Youcandeterminethatbyconsideringlifestyleandexercisegoals.

G.Ifsadvisabletodomorningworkoutwithnumerousafter-workactivities.

第二部分语言知识应用（共两节，满分30分）

第一节（共15小题;每小题1分，满分15分）

阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空

白处的最佳选项。

AmomnamedMimiWallacediscoveredherdaughterOlive'shandwrittencomposition.Shewasnaturally

21aboutwhatitwouldsoundlike.SoshesharedthesheetmusiconTikTokandchallengedother

musiciansto22it."Somy1O-year-olddaughterwrotethis."Wallacesaidinhervideo.t4Ineedtoknowif

ifsanygoodorifitmakesany23JWallaceadded.UIwantedtoknowwhatOlive'smusicsoundedlike,

soI24TikTok.^^

Thiscallformusiciansofallkindstotryplayingitwiththeirinstrumentsof25immediatelyreceived

aseriesofresponses.Peoplefromdifferentmusicalbackgroundssharedtheir26ofthecomposition.

Olive,who27studiestheviolinanddreamsofbecomingaprofessional,alsoseemstobe28

hermusicbeingbroughtto29.“Ineverwouldhaveexpectedthistohappen,Olivesaid.'Tm30

byhowmanypeopleputtheirtimeintothat.Itwasjustreally31Olivehopeshermusicinspiresothers

to32theirloveformusic."I'mhappythatit33somanypeopleandbringssomanypeoplejoy.

Ithinkthafswhatmusicdoesforpeople,9,Olivesaid.

Thoughshehassofarreceivedlotsofresponses,Wallacestillwonderswhatthe34wouldsoundlike

onabagpipe（风笛）.Hopefully,morepeoplewillcomeforwardtosharetheir35.

21.A.carefulB.curiousC.angryD.anxious

22.A.playB.singC.copyD.follow

23.A.profitB.senseC.mistakeD.progress

24.A.askedB.calledC.invitedD.watched

25.A.honorB.powerC.choiceD.history

26.A.recordsB.expectationsC.memoriesD.interpretations

27.A.barelyB.currentlyC.exactlyD.generally

28.A.admittingB.mindingC.enjoyingD.remembering

29.A.lifeB.movieC.lightD.theatre

30.A.mixedupB.leftoutC.turnedoffD.blownaway

31.A.oddB.funnyC.tiringD.amazing

32.A.dropB.pourC.pursueD.check

33.A.reachesB.shakesC.unitesD.shapes

34.A.truthB.pieceC.dramaD.point

35.A.ideasB.plansC.talentsD.stories

第二节（共10小题;每小题1.5分，满分15分）

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

TherecentopeningofanewexhibitionbuildingattheSanxingduiMuseum,inGuanghan,inSichuanprovince,

madetheplace36instanttouristhotspot.Thebronzeheads,goldenmasks,holytreesandvariousstatues

revealthe37(mystery)facesofaculturedatingbackmorethan3,000years.

ForthosewhocannotmakeittoGuanghan,wheretheextensivesiteofSanxingduiislocated,animmersive

exhibition38(equip)withdigitaltechnology,titledHelloSanxingdui,39(offer)analternative

meanstobeawedbythemagnificenceofthisBronzeAgeculture.ItisrunningattheLongfuArtMuseuminBeijing

untilDec.29.

Itprovidesatime-travelexperienceforbothaneducationalandartisticappeal.Thejourneybegins40

abrieftimelineoftexts,photosandvideos,showinghowSanxingduiwasfirstdiscoveredinthe1920s,41

objectswerefoundbyfarmersdigginganirrigationditch(灌溉沟渠);andithighlightstheimportantmomentsinthe

pastcentury9scontinuedarchaeologicalefforts,torevealthemythssurroundingSanxingduiandthesecretsyet

42(uncover).

Onshow43(be)life-sizereproductionsofdozensofastonishingartifacts,supervisedbySanxingdui

Museum,suchas2.6-meterbronzestatues,3.8-meter-widebronzemasksand"theholytree95standingnearly4meters.

ImagesoftheseobjectsfoundatSanxingduiandtheir44(pattern)havebeendigitalized,animated

andprojectedonscreens,leadingtheaudienceintotheancientkingdomofShu,a45(civilize)that

thrivedforcenturiesinthesouthwestduringtheZhouDynasty,anddisappearedsuddenly,leavingmanymythsand

legends.

第三部分写作(共两节，满分40分)

第一节(满分15分)

46.假设你是红星中学的高一学生李华，学生会将于下周五开展“地球日”系列活动。请你给外籍学生Jim

写一封邮件，邀请他来参加。内容包括：

1.介绍活动基本信息，如时间、地点等。

2.活动项目及意义。

注意：词数100词左右。

提示词：地球日EarthDay

DearJim,

Yours,

LiHua

第二节（满分25分）

47.阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

Timandhisfatherweresailingatsea.Hetriedtorememberallthesailingknowledgehisfathertaught.However,

itwasn'teasyforhim.Hecouldonlymastertheskillstotieropesandwearalifejacketincaseofemergency.

Timpulledinthesail（帆）oftheboatoverhisheadsuccessfully.Helookedbackathisfather,hopingfora

smileoranod.Buthisdadwaslookingupatthesail,notathim.Timenjoyedsailingwithhisfather,buthealsofelt

nervousanddifferentfromhisconfidentfather.

Suddenlythewindwasblowingangrily.Heputonhislifejacketnervously.Bycomparison,hisfathernever

5

worealifejacket,forhehadbeenswimmingandsailingforhisentirelife.

“Tim,canyoutakethehelm（方向盘）foraminute?^^hisfatherasked,"Justkeepitgoingstraight.Tilrunupto

thebackoftheboattochecksomething.Consideringthechangingweather,Timhesitated,buthedidn,twanttosee

thefamiliardisapprovinglookonhisfather5sface.t4Uh,sure,^^herepliedandwenttoholdthehelmtightly.

Suddenly,thewindshifteddirectionandtheboatheeled（倾斜）sosharplythatitmightturnover.Timknewhe

hadtoletsomeairoutofthesailtohelprighttheboat,buthewouldhavetoletgoofthehelmtodothat.

Helookedbackforhisfather,butthesailblockedhisview."Dad!"hecalled,butthewindswallowedhisvoice.

Hisheartwaspoundinginhisears.Theboatbegantoheelmore.Timknewhehadtoactfast.Heheldthehelmwith

onehandandusedtheotherhandtoreachforthemainsailline,tryingtoloosenit.Afterafewattempts,hemanaged

tolettheairoutofthesail.Theboatquicklyrighteditself.

Timgaveasighofrelief.Thenhelookedaroundforhisfather.Buttherewasnosignofhim.

注意：

1.续写词数应为150左右；

2.请按如下格式在答题卡的相应位置作答。

Suddenly,hesawaflashofsomethinginthewater.

HisfatherfinallyclimbedbackintotheboatwithTim'shelp.

答案版

（全卷满分120分，考试用时120分钟）

第一部分阅读（共两节，满分50分）

第一节（共15小题;每小题2.5分,满分37.5分）

阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。

A

TherehavebeenmanygreatpaintersintherichhistoryofChineseart.Herearefourofthegreatestpainters

fromChina.

LiCheng（919-967）

LiChengcontributedgreatlytooneofthegoldenagesoflandscapepaintingsinworldhistory.Duringhis

time,hewasconsideredthebestlandscapepainterever.Heisrememberedespeciallyforthewinterlandscapeshe

createdandforsimplecompositionoftall,oldevergreenssetagainstadrylandscape.Severalofhispaintingsarein

diluted(稀释的)inkwhichgivesthemafoggyappearance.

FanKuan(950-1032)

FanKuanbeganhiscareerbymodelinghisworksonthoseofLiChengbutlatercreatedhisownstyle

claimingthattheonlytrueteacherwasnature.HisfinestworkTravelersAmongMountainsandStreamsisa

masterpieceoflandscapepaintingandmanyfutureartiststurnedtoitfbrinspiration.

QiBaishi(1864-1957)

OneofthegreatestcontemporaryChinesepainters,QiBaishiisknownfornotbeinginfluencedbyWestern

styleslikemostofthepaintersofhistime.HecanbeconsideredasthelastgreattraditionalpainterofChina.Qi

Baishipaintedalmosteverythingfrominsectstolandscapes.HeisregardedhighlyinChineseartforthefreshness

andspontaneity(自然)thathebroughttothefamiliartypesofinsects,birdsandflowers.

WuGuanzhong(1919-2010)

WidelyconsideredasthefounderofmodemChinesepainting,WuGuanzhonghaspaintedvariousaspectsof

China,Hkeitsarchitecture,plants,animals,peopleandlandscapes.Wuwasinfluencedbypost-impressionistart,an

importantwesternmovement,andwentontocombineWesternandChinesestylestocreateauniqueformof

modernart.In1992,hebecamethefirstlivingChineseartistwhoseworkwasexhibitedattheBritishMuseum.

1.WhatdoweknowaboutFanKuan?

A.Hecopiedmanyartists5works.B.Hismasterpiecewasinspiring.

C.Hisworksgainedworldwiderecognition.D.Hecreatedhisownstylefromtheverybeginning.

2.WhatisonefeatureofWuGuanzhong9spaintings?

A.Theyhavefoggyappearances.B.Theyfocusonasingletheme.

C.TheycomeunderWesterninfluence.D.Theyshowtraditionalpaintingskills.

3.WhatdidthefourChinesepaintershaveincommon?

A.Theyallcreatedlandscapepaintings.

B.TheywereallinfluencedbyWesternart.

C.TheywereallpioneersinChinesearthistory.

D.TheirworkswereallexhibitedattheBritishMuseum.

【答案】l.B2.C3,A

B

TheMalagasybaobabtree,whosethicktrunksandtinybranchesdotMadagascar'slandscape,shouldnot,by

rights,havesurvivedtothepresentday.Scientistsbelievethatitslargeseedswereoncespreadbythegiant

tortoisesandlemurmonkeysthatwanderedtheisland.Whenthesespecieswentextinctoveronethousandyears

agoowingtohumanactivity,thebaobabtreeshouldhavedisappearedtoo.Itdidnot.SehenoAndriantsaralazaat

theUniversityofAntananarivoandOnjaRazafindratsimaattheUniversityofCalifornia,nowthinktheymayknow

thereasonwhy.

Togetherwiththeircolleagues,thescientistsmonitored15treecanopies（树冠）inawesternregionof

Madagascar,toidentifyanyanimalsthatmighthaveclaimedtheroleofbaobab-seedspread.Theresearchersalso

setupcameratrapsaroundseed-containingfruitslyingontheground,andsearchedanyfaeces（粪便）thatthey

encounteredalongthewayforthepresenceofseeds.

TheyreportinthejournalBiotropicathatanativerodent（啮齿动物）knownasthewesternbunch-tailedrat

wascaughtoncamerahandlingwholefruitsonfouroccasions.Althoughtherewasnofootageoftheratbreaking

thefruitsopen,theteamdidchanceupon13fruitsthathadbeenchewedintoandhadtheirseedsremoved.Though

thebitemarkswerenotclearenoughtoidentifyaninitiator,thiswasclearevidencethataseed-distributinganimal

wasoutthere.Theythenfoundtheecologicalequivalentofasmokinggun:baobabseedsinsevendifferentpilesof

bush-pigfaces.

Whilethefindingisimportantinitsownright,italsoprovidesvaluableevidencethatintroducedspeciesmay

notbeentirelyharmful.Madagascar9spigs,forexample,thoughnotnative,havemadethemselvesessentialtothe

survivaloftrulynativespecies.SimilarrelationshipsaresuspectedtoholdinSouthAmericabetweenrabbitsnative

toEuropeandplantswithnoseeddistributors.ForDrAndriantsaralaza,thatsuggeststhefullecologicalroleof

introducedspeciesshouldbeconsideredbeforetalkofextinctionbegins.

4.Whatmadescientiststhinkthebaobabtreeshouldhavedisappeared?

A.Theextinctionofitsseedspreader.B.Thedestructionofhumanactivities

C.Theinadaptationofthebaobabtree.D.Theincreaseofitsnaturalenemies.

5.Whatarecameratrapsusedfor?

A.Seekingseed-containingfruits.B.Trackingthefootprintsofseeds.

C.Recordingtheanimals'activities.D.Monitoringthebaobabtreecanopies.

6.Whichismostprobablytheseed-eatera