2026年中考英语常考考点之完形填空-人与社会（学生版）

2026年中考英语常考考点专题之完形填空一人与社会

一.完形填空(共25小题)

1.(2026•广水市模拟)阅读短文，从每小题所给的四个选项中，选出最佳选项，填入空白

处。

Lastsummer,myclassmatesandIjoinedacommunityclean-upactivity.Earlythat

morning,we(1)aitheparkeinrancewithglovesandtrashbags.Theorganizer,

Mr.Chcn,smiledandsaid,"Ourgoalistomakethispark(2)foreveryone!"Though

thesunwasshiningbrightly,everyonewasexcitedtobegin.

Westartedworking.Atfirst,Ithoughtpickingup(rashwasboring.ButasIsawthepilesof

bottlesandpaperdisappearing,Ifelt(3).Suddenly,myfriendLilyshouted,

"Look!There'sa(4)underthebench!"Itwasasmallblackwallet.Weopeneditand

foundsomemoneyandanIDcard."Weshould(5)ittothepolice,"Lilysaid.

Mr.Chcnagrccd.Whilcwaiting,anoldmanhurriedover,(6)hisheadand

asking,"Hasanyoneseenmywallet?”Wehandedittohim.Hewassothankfulthathe(7)

tobuyusicecream.Wepolitelyrefused,sayingitwasour(8).Themanthenwrotea

(hank-youlettertoourschool,whichmadeusfeelevenprouder.

Thisexperiencetaughtmethathelpingothers(9)bringsthemjoybutalsomakes

ushappy.Evensmallactions,(10)pickinguptrashorreturninglostthings,canmake

abigdifference.

Intheafternoon,wc(11)theclean-upandplayedgames.Mr.Chcntoldus,"A

cleanenvironment(12)everyone'seffort.Ifwealldoourpart,theworldwillbe

(13)______

WhenIgothome,Isharedtheexperiencewithmyparents.Mydadsaid,"I'mgladyou

learnedthattruehappinesscomesfrom(14)others,notjust(15)yourself."

(1)A.metB.leftC.stayedD.went

(2)A.saferB.cleanerC.clearerD.bigger

(3)A.sacB.illC.proudD.excited

(4)A.walletB.catC.bookD.key

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(5)A.throwB.giveC.sellD.hide

(6)A.touchingB.shakingC.noddingD.washing

(7)A.hatedB.dccidcdC.forgot□.offered

(8)A.jobB.hobbyC.dreamD.lesson

(9)A.eitherB.neitherC.notonlyD.aswell

(10)A.likeB.aboutC.withoutD.against

(11)A.finishedB.startedC.avoidedD.discussed

(12)A.refusesB.needsC.wastes0.explains

(13)A.colderB.darkerC.prettierD.slower

(14)A.teachingB.helpingC.watchingD.blaming

(15)A.thinkingaboutB.laughingatC.lookingfbr□.givingup

2.(2025•颍上县三模)Haveyoueverthoughtabouthowdrugs(药物)travelinour

bodies?Traditionalmethods,likepills,arclikesendingaletterwithoutaddress,(1)

theyoftengotothewrongplaces.Butnow,Chinesescientistshavemadesmart"band-aids"for

ourorgans(器官).Thesecanhelpdrugsreachthe(2)_______placesbetter.

SomescientistsfromtopuniversitieslikeBeihangUniversityandPekingUniversity(3)

togethertodesignanelectronicpatch(贴片),justlikeaband-aidfororgans.Thepatchisas(4)

aspaperandcansticktoongans.Unliketraditionaldrugstakenby(5)orinjectedinto

avein(静脉注射),thispatchusestinytechnologytoactlikeaGPSformedicine.

Here'showitworks：Thepatchusessafe,low-energyelectricitytoopentiny(6)

incellmembranes(细胞膜).Then,itpushesdrugsthroughthesedoorsstraighttothe(7)

area."Il's(8)buildingafasthighwayfordrugs,'explainedProfessorChangLingqian,

oneoftheresearchers.

This(9)isalreadyusedinskininjuriesandimprovingmedical

treatments.Scientistsbelieveitcouldalsofightserious(10)likecancerinthefuture.

(I)A.orB.ifC.soD.unless

(2)A.familiarB.deepC.cleverD.right

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(3)A.improvedB.workedC.controllcdD.checkcd

(4)A.thinB.fatC.expcnsivcD.long

(5)A.mouthB.lcgsC.annsD.nosc

(6)A.riversB.gardensC.windowsD.doors

(7)A.peacefulB.harmfulC.healthyD.sick

(8)A.likeB.aboutC.with0.except

(9)A.introductionB.inventionC.instruction0.invitation

(10)A.expressionsB.businessC.diseasesD.moods

3.(2026•铁岭期末)WhenIwasatuniversityintheUK,Iwouldoftenhavelongtrain

trips,Icoulddoalotonthesetrips.I'dreadfbrtheday'slessononthewayin.OrI'dplanmy

essays(论文)onthewayhome!couldalsodocreativewritingwhile(1)the

views.I'vealwaysthoughl»wouldn'titbecooliftrainscouldbemorelikelibraries?Well

(2)，inChina,(herearetrainsthatdojustthat!

AccordingtoaCCTVNewsreportonFebruary20,2023,a"studytrain"nowruns(3)

ChongqingandXiushancounty.Insomecarriages(车厢)，desksandchairshavetakentheplace

ofseatsbywindowsto(4)peoplestudywhiletraveling.Aslowtrainthatrunsalong

theChengdu-KunmingRailwayhasalso(5)likea"schoolbus".Studentsfrom

nearbyschoolsusetheirtraveltimetofinish(6)onthetrain.

IntheUK,lotsofstudentsstudyintheirlocallibraryafterschool>(7)grown

-upslaketheirworkintocafesandbars.Manyalsodotheirworkcommuting(通勤).(8)

(here'srarely(很少)aspaceonthetraintocallyourownandreallyfocus(专注).

It's(9)thattherearetrainsinChinathatbuildupagoodstudyatmosphere(氛

围).Maybe,theLJKcando(10)similar.

(1)A.thinkingB.makingC.feelingD.enjoying

(2)A.thenB.nowC.soonD.again

(3)A.betweenB.fromC.alongD.in

(4)A.askB.allowC.letD.see

(5)A.feltB.becomeC.soundedD.changed

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(6)A.homeworkB.schoolC.houseworkD.trips

(7)A.thoughB.whenC.whetherD.while

(8)A.ButB.AndC.OrD.So

(9)A.hardB.fastC.greatD.ordinary

(10)A.anythingB.somethingC.everythingD.nothing

4.(2025•安泽县二模)OnOctober17,2024,YaoJiusuistoodproudlyattheopening

ceremonyofWenYongLu,aroadtohonorfourheroeswhoprotectedChinawiththeir

livcs.ThisnewroadisinHotan,Xinjiang.Yaowasinvitedbecauseshewasthe(1)

ofChenXiangrong,oneofthebravesoldiers(军人).

OnJune15,2020>intheGalwanValley»ChenXiangrongfoughthardtoprotectChina.

(2),heandthreeotheryoungsoldierslost(heirlivesthatday.Chenwasonly19years

old.He(3)hisbrightsmilethatwannedeveryone'sheartlikethesunrisinginthe

morning.

Beforehedied,Chensaid,"Pure(清澈的)loveisonlyforChina!"Hiswords(4)

manypeople.Afterhissacrifice(牺牲)，storiesabouthimandotherheroesspreadacrossChina

andencouragedmillions.

Whenaskedwhatsheneeded,Yaosaidshewantedtoknow(5)hersonwas

braveinthefighl.Hiscommander(指挥官)，DuPengfei,answered,"Ashiscommander,Ican

sayhewasfearless!"ItmadeYaofeelproud,eveninher(6).Thisiswherethename

WenYonglucamefrom.

"WenYongLuisnotjustaroad；itismyson'smemory,"Yaosaidduringtheceremony,

withtears(泪水)inhereyes."Xiangrongwillalwaysbeiny(7)!"

WenYongLuremindsusofthebraveryandlovethatChenXiangrong(8)forour

greatcountry.ltteachesusthattrueheroesneverreallyleaveus—theyliveoninourhearts.

(1)A.sisterB.motherC.grandmother

(2)A.GraduallyB.UnusuallyC.Unluckily

(3)A.wasknownforB.wasthirstyforC.wasthankfulto

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(4)A.invitedB.touchedC.changed

(5)A.sinceB.unlessC.whether

(6)A.shynessB.kindnessC.sadness

(7)A.friendB.prideC.guidc

(8)A.showedB.recalledC.polished

5.(2025•镇江)"Aimforthemoonandevenifyoumiss,youwilllandamongthestars"isa

commonsaying.ltshowsthatweshouldn'tbeafraidtofailandshouldtrytobe

(1).Inthisway,wecanstayina(2)placethanwherewestart,even

ifwefail.Manygreatpeopleintheworldlovefightingforexcellence.Oneofthemisthe

famousbiologist-TongDizhou,thefatherofChina'sclone(克隆).

TongcamefromapoorfamilyinZhejiangProvincear.ddidn'tgotohighschooluntil.7So

hebecametheoldeststudentintheclass.Whatwasworse,hefacedthe(3)ofbeingnot

allowedtocontinuehisstudybecausehecouldn'tcatchupwithothers.(4),hedidn't

giveup.Hestudiedhardandmanagedtolaketheleadamonghisclassmates.(5)，he

graduatedwiththehighestgrade.

Tongisrememberedand(6)fortheoutstandingachievementofcross-species

cloninginfish.In1963,Tbngproducedtheworld'sfirstclonedfish.Tenyearslater,Tong(7)

thefirstcross-speciesclonedfish.Inthewholeprocess»challengesandfailuresdidn'tprevent

him.Thankstohispioneeringresearch,Chinesescientistsdevelopedfish-breedingskills.Now

Chinaproducesmorethanhalfoftheworld'saquaculture(水产养殖)harvest.

Shouldwe"aimforthemoon"or(8)aimforwhatiseasilyachieved?Tonggave

usagood(9).Heshowsusthatworkingtowardsexcellencedespiteofthefailurecan

beasteppingstonetogreatsuccess.Nowadays,manyyoungpeoplefearfailuie.Theypreferto

takeaneasierpath.They(10)takingonchallengesandareeasilybeatenby

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stress.Actually,fightingforexcellenceandnotbeingafraidoffailurecanhelppeoplebetter

themselves.

(1)A.generousB.excellentC.modest□.organized

(2)A.warmerB.tidierC.higherD.quieter

(3)A.decisionB.secretC.riskD.purpose

(4)A.MoreoverB.HoweverC.OtherwiseD.Also

(5)A.IngeneralB.AsusualC.AboveallD.Asaresult

(6)A.respectedB.requiredC.changedD.conipared

(7)A.drewB.boughtC.createdD.caught

(8)A.closelyB.widelyC.suddenlyD.simply

(9)A.speechB.answerC.helpD.reason

(10)A.avoidB.continueC.practiceD.suggest

6.（2025•江海区二模）DeepSeekisanamazingtoolthathelpspeoplegetinformation

quickly.ltislikeasupersmarthelper.People'sliveshavebecome(1)becauseof

it.Theycanfind(2)totheirquestionsinaveryshorttime.

WhenthedevelopersfirststartedworkingonDeepSeek,theynever(3)thatit

wouldbecomesopopular.Atfirst,theyjustwantedtocreateatooltomake(4)

researchcasicr.Thcywerevery(5)abouteverydetailduringthedevelopment

process.Thiscarefulnessisavery(6)partofmakingagoodproduct.

AfterDeepSeekwaslaunched,itwas(7)byalotofpeople.Theyfounditreally

useful.Butthedevelopmentdidn'talwaysgo(8).Thereweresomeproblemsat(he

beginning.However,theseproblemsdidn'tstopthedevelopers.Theybelievedthattheseproblems

could(9)newideasforimprovement.

Noteveryonecanbeagreat(10)likethedevelopersofDccpSeek.ltneedsalot

ofhardwork,creativity,andpatience.

(1)A.busierB.harderC.easierD.shorter

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(2)A.answersB.toolsC.stcpsD.skills

(3)A.thoughtB.saidC.heardD.remembered

(4)A.medicalB.historicalC.cducational□.scientific

(5)A.carclcssB.carcfulC.cxcitcdD.bored

(6)A.unimportantB.similarC.strange0.important

(7)A.acceptedB.refusedC.forgotten0.questioned

(8)A.slowlyB.quicklyC.snioothlyD.quietly

(9)A.leadtoB.turndownC.breakdownD.mixwith

(10)A.teacherB.artistC.inventorD.doctor

7.(2025•信都区三模)Lastsummer,myfamilyandItookanamazingtripacrossHebei.

Ourjourney(1)inShijiazhuang.Wcenjoyedthemixofmodernbuildingsand

ancientstoriesthere.WcvisitedZhengdingAncientCity.WalkingthroughRongguofu,Ifeltlike

steppingintoaworldofDreamofRedChamber—afamousChinese(2)whichis

writtenbyCaoXueqin.

Next»weheadedtoBaoding,acityfullofhistoryandculture.We(3)thegreat

ZhiliGovernor'sOffice(直隶总督署).Therewe(4)Hebei'srichhistorj^.Thebest

pan?TastingBaoding'sfamoushuoshao一so(5)!

Then,wetraveledtoQinhuangdao.Wcvisitedthegolden(6)ofBeidaihe.The

soundofwavesandthefreshseawindmadeusfeelcompletelyrelaxed.

Our(7)slopwasChengde.WevisitedoneofHebei'smostfamousplacesof

interestthere,theMountainResort(避暑山庄).Itwasrelaxingtowalkthroughthebeautiful

gardens.

Afterthetrip,mymothersmiledandsaid,"Hebei(8)haseverything-different

landscapesandarichhistory!(9)it'snotverybig,ithasitsownstorics.It'smorethan

justa(10)onthemap.It'sagoodplacetoenjoythenaturalbeautyandhistorical

cultureallaround."

(1)A.beganB.stoppedC.mixedD.changed

(2)A.paintingB.novelC.movieD.play

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(3)A.builtB.forgotC.explorcdD.drcw

(4)A.handedinB.wrotedownC.learnedaboutD.lookedup

(5)A.dcliciousB.smartC.beautifulD.clcar

(6)A.birdsB.scasC.leavesD.beaches

(7)A.finalB.wrongC.earlyD.famous

(8)A.quicklyB.trulyC.hardly0.recently

(9)A.BecauseB.UnlessC.WhenD.Though

(10)A.pictureB.planeC.pointD.park

8.（2025•高要区校级三模）YeJiayingwasknownasthe"daughterofpoetry".She(1)

onNovember24,2024,attheageof100.BorninBeijingin1924,YeJiayingwasanexpertin

Chineseclassicalliteratureand(2).Shespentherlifestudying,creating,and

teachingthebeautifulartofChinesepoetry.Eveninher90s,shecontinuedto(3)

herknowledgeandpassionwithothers,andherlectureswerewidelyadmired.

Fromayoungage,Yehada(4)interestinclassicalpoetryandEnglish.In

college^shestudiedTangandSongdynastypoetrywithafamousliteratureprofessorwho(5)

hergreatly.Inthe1950sand1960s,shetaughtatuniversitiesinTaiwan,andthenmovedto

Canada.However♦herloveforherhomelandanditspoetryneverfaded(减弱).Startingin1979>

shebegangivingfreelecturesinChinesemainlandduringherholidays.

In2018and20I9»Yegaveallher(6)andthemoneyfromsellingherproperty»

totaling35.68millionyuan；(oNankaiUniversity.Forher(7)andgenerosity(慷

慨)，shewasawardedthe'TouchingChina"awardin2020.

Yewasnotjustateacher.Shewasalsoa(n)(8)poet.Shewroteandpublished

manybooksonChinesepoetryandliterature,includingStudiesinChinesePoetryandJialing's

CollectionofPoemCommentaries.Herworkwas(9)praised,andshereceivedmany

awards,suchastheLifetimeAchievementAwardforChinesePoetry.

Herworkwillcontinueto(10)Futuregeneraiions.Andshewillberememberedas

agreatteacherandpoet.

(1)A.gaveupB.setoffC.passcdawayD.wcntby

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(2)A.poctiyB.storiesC.novelsD.cartoons

(3)A.shareB.compareC.hclpD.conncct

(4)A.strangeB.dccpC.similarD.little

(5)A.influencedB.punishedC.memorized□.considered

(6)A.beginningsB.sayingsC.feelings0.savings

(7)A.businessB.kindnessC.hardnessD.shyness

(8)A.pleasedB.satisfiedC.encouragedD.talentcd

(9)A.meaningfullyB.honestlyC.highlyD.properly

(10)A.inspireB.manageC.receive□.express

9.(2025•安徽模拟)Ioncevolunteeredatalocalnursinghome.Iwasassigned(分配)to

beafriendtoanelderlywomannamedMrsJohnson.Shewasalwaysquiet,andIcouldtellthat

shewas(1).SoImadeupmymindtomakehersmile.

Ibroughtinbooksandmagazines>butshewouldonlygivea(2)lookalthem

beforesettingthemaside.Iaskedherquestions»butshewouldonlygivemeone-word

(3).Itwasdisappointing,butI(4)togiveup.

Oneday,Idecidedtobringinmyguitarandplaysomesongsforher.AsIplayed,Inoticed

thatshewassingingalong(5).Itwasnotloud»butIcouldfeelherhappiness.AfterI

finished,shesaid,"Youhaveabeautifulvoice."Iwas(6),becauseshehadneversaid

anythinglikethatbefore.Fromthenon,1wouldbringinmy(7)everyweekandplayfor

her.

Astheweekswentby.MrsJohnsonstartedtoopenuptome.Shetoldmestoriesabouther

life.IrealisedthatMrsJohnsonhadsomuch(o(8),butnoonetoshareitwith.Allshe

neededwassomeoneto(9)her.

Ourtimetogetherhadmadea(10).Ittaughtmethepowerofmusic,theimportance

ofcompanionship,andthevalueoftakingthetimetolistentosomeone'sstory.

(1)A.proudB.lonelyC.warmD.afraid

(2)A.carefulB.friendlyC.quickD.right

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(3)A.suggestionsB.callsC.notes□.answers

(4)A.refusedB.dccidcdC.continucdD.longed

(5)A.softlyB.casilyC.sadlyD.freely

(6)A.nervousB.surprisedC.sorry□.interested

(7)A.magazineB.ballC.guitarD.piano

(8)A.shareB.explainC.introduce0.collect

(9)A.hearfromB.listentoC.dependonD.laughat

(10)A.decisionB.mistakeC.choice0.difference

10.(2025•安徽模拟)

Emojisareagreatwaytoshowfeelingsinatextmessage.ButoneboyfromOxfordshire,

Englandthinksthere'sonethatneedstobe(1).

Ten-year-oldTeddyaskedAppletotakeawaythe"nerd(书呆子)glasses"emoji.He

first(2)theemojiwhentextinghiscousin.Hethoughtthesmileyfacewithbigfront

teethwasn't(3)topeoplewithglasses."Appleismakingitquiteterribleforpeople

wearing(4)tothinkthey'renerds,"hesaid."Iflfinditoffensive(冒犯的)，there'll

bethousandsofpeoplethatfinditoffensivetoo."

Teddydesignedanewemojionhisown."Ithasgotthinglasses,andithasgotalittlesmiley

face.Ilikewearingglassesbecausetheymakeme(5)alotbcuer,"Teddyexplained.He

hopedApplecouldchangeits(6)used"nerdemoji"tothenewonehedesigned.

"Ilovehiscreativemind,andthefacthefightsforwhathe(7),"saidBaillie*

Teddy'steacher."He'squite(8)toexpresshisideasinquiteagrown-upway.Ithink

thatshouldbeencouraged."

Asforhisrequest(请求)，Teddysaid,"IfAppleconsidersmy(9),itwillbe

amazing,andI'llbeso(10)Let'shopethelittleboycanmakeadifference!

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(1)A.hidB.changcdC.improvedD.paid

(2)A.choseB.explainedC.noticcdD.marked

(3)A.friendlyB.helpfulC.important0.interesting

(4)A.ringsB.glassesC.glovesD.hats

(5)A.moveB.sayC.seeD.hear

(6)A.carefullyB.hardlyC.correctlyD.commonly

(7)A.findsoutB.believesinC.decideson□.searchesfbr

(8)A.humorousB.patientC.luckyD.brave

(9)A.ideasB.lessonsC.reportsD.surveys

(10)A.excitedB.specialC.afraidD.worried

11.(2025•淮北三模)Whatmakeshumansandouranimalrelativesdifferent?Abig

beautiful(1).Humanbrainpowerhasinventedthingssuchasart,language,

literature,machinesandmusic.Thelistgoeson,butthereisstill(2)wedon'tknow

aboutthebrain.Scientists(3)thatswimmingincoldwatercouldrepairdamageto

humanbrains.

Thebrainhastwoconnectedpartscalledhemispheres(脑半球).Eachonecontrolsthe(4)

sideofthebody.Thcrighthemispherecontrolstheleftsideofthebodyandhelpsyourecognize

faces,imagesandmusic.Thelefthemispherecontrolstherightsideofthebodyand(5)

language,logical(逻辑的)thinkingandmaths.

Ourbraincontinuestodevelopinto(6)adulthood.Babieslearnquickly.In(hefirst

18monthsoflife,theyusetheirsenses—hearing,sight,smell,tasteand(7)to

understandtheworldaroundthem.Talkingtoandplayingwithbabieshelpstheirbrainsgrow.

Teenagershavebrainsthatarefullsizedbutstillunderdevelopment,(8)thepart

atthefrontleftofthebrain.Thispartcontrolsbehaviouranddecision(9).Sport,studying

and(10)activitieshelpusimproveit.Anadultbraincanplay,solveproblemsandmake

decisionsbetterthanateenageonecan.

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(1)A.faceB.brainC.heartD.body

(2)A.manyB.muchC.moreD.most

(3)A.doubtcdB.imaginedC.showcd□.discovered

(4)A.similarB.closcC.oppositcD.samc

(5)A.focusesonB.carriesonC.putson0.dependson

(6)A.lateB.wholeC.earlyD.full

(7)A.touchB.feelingC.lookD.sense

(8)A.speciallyB.especiallyC.exactly0.completely

(9)A.planningB.writingC.studyingD.making

(10)A.outdoorB.differentC.creativeD.exciting

12.(2025•蚌埠模拟)Honeybeeskeepawayfromeachothertoslowdownthespreadof

dangeroustinyinsectsin(heirhives(蜂巢)，accordingtonewresearch.Somescientistsfound

that(hebeesusetheirov/nformof"socialdistancing"to(I)themostimportantparts

ofthehives.ilisjustlikethatpeoplekeepagreaterdistancefromeachotherio(2)

thespreadofdisease.

Theresearcherslookedatbees'livingplacesontheItalianislandofSardinia.Theywantedto

see(3)theinsectsdidinhivesthatwereinfected(感染)withatinyinsect,compared

withhivesthathadbeencleareduptheinfcction.Thctinyinsectisasmall(4)thingthat

livesonbccs.Thcscientistsusedcamerasto(5)thebees'activities.Thcyfoundthat

foragers(采集蜂)frominfectedhives(6)theirspecial"waggledances(摇摆舞)".The

dancesgiveotherbees(7)tofindfood.

Foragersareolderbeesthattravelwidelyoutside(he(8)tocollectfood.(9)

theyarethemostlikelytopickupaninfectionandspreadit.Bykeepingadistancefromthecentre

-wherethequeenbee,eggsandyoungerbeesare-itseemsthatthefbragersreducethe(10)

ofdangeroustinyinsectsinfectingthewholelivingplace.Andthentheyprotectthemselves

perfectly!

(1)A.findB.supportC.protectD.remember

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(2)A.dcvelopB.slowC.improveD.remain

(3)A.whatB.whereC.whoD.whcn

(4)A.softB.coolC.livingD.activc

(5)A.recordB.reviewC.recycleD.repeat

(6)A.preventedB.performedC.divided0.mentioned

(7)A.decisionsB.choicesC.directionsD.preparations

(8)A.cityB.parkC.riverD.hive

(9)A.ForB.NorC.SoD.Or

(10)A.secretB.chanceC.safetyD.risk

13.(2025•乾县校级三模)Naturereserves(保护区)providethebesthomeforwild

animalswithwarmweather,water.plantsandwetlands.Now,theAIsystem(系统)in

reservesplaysanimportantroleinstudyingwildlife.Insteadofusingbinoculars(望远镜)，

peoplecan(I)animals'activitiesonbigscreens.

TheAIsystemcanbevery(2).First,itcanrecognizedifferentanimalsbyiheir

tails,feet,orbeaksand(3)theirnumbers.Second>itcanrecordanimals*actionsall

dayandnight,whichhumanscouldn'tdobefore.ltalsonoticesunusualbehaviors.Forexample,

ifananimalmoves(4)orliesstillfortoolong,thesystem\vill(5)researchers

tohelpquickly.Besides,itkeepsunauthorized(未经许可)peopleoutofprotectedareasand

teachesvisitorsabou