考点通关班-阅读理解A卷(普卷)

考点通关班一一阅读理解

学校:姓名：班级：考号：

一、阅读理解：共30题每题2分共60分

GiraffesAreBeingKilledforTheirTails

DocumentaryfilmmakerDavidHamlinrecallshowexcitedhewasatthesightofthreegiraffes

standinginasmallclearingwhenhewasflyingovertheDemocraticRepublicoftheCongo's

GarambaNationalParkinlateJune."Seeingthesegiraffesfromtheairwasreallyexciting,

saysHamlin,whowasworkingfbrNationalGeographic.That'sbecauseGarambaishuge,

extendingovernearly2,000squaremilesofmostlyforestedland,andit'sarare,luckyeventto

comeacrossanyofits40remaininggiraffes.

ButHamlin'sthrillatseeingandphotographingthegiraffesdidn'tlastlong.Twelvehourslater,

peoplelookingafterthenationalparkreportedhearinggunshots,andtheylaterdiscovered

threebullet-riddledbodiesofdeadgiraffesinthesun."Itwashorriblefbrmeandtheteam,“

Hamlinsays“torealizethatmostlikelyitwastheseguys,theoneswe'dseen."Hamlindecided

todocumentthesadeventtoraiseawarenessaboutillegallyshootinganimalsinthepark.

GarambaisAfrica'ssecondoldestnationalparkandhasbeenhithardbyillegalshootingin

recentyears.Itsrhinoshavebeenwipedout,andelephantshavesufferedhugelosses.Thesame

goesfbritsKordofangiraffes,oneofAfrica'sninegiraffesubspecies.Fewerthan2,000now

wandercentralAfrica,accordingtoJulianFennessy,co-directoroftheGiraffeConservation

Foundation.Garamba5sKordofangiraffesrepresentthelastpopulationintheDemocratic

RepublicoftheCongo.4tIfthenumberslipsinhalf,thenwe'reinanextremelyserious

situation,Fennessysays."Everysinglegiraffeisvaluable.

Congoleseusuallykillthegiraffesfbronebodypart,theirtails,consideredaranksymbolin

somecommunities.MeanwhilemenfromneighboringSouthSudantargetthegiraffesfbrtheir

meattofeedpoorvillagers.Butthemassivebodies(giraffescangrowto18feetandweighup

to3,000pounds)ofthesethreegiraffeswerecomplete—onlytheendsoftheirtailswere

missing.AccordingtoLeonLainprecht,jointoperationsdirectorfbrAfricanParks,“menuse

thetailastreasuretothebride'sfatheriftheywanttoaskfbrthehandofabride.”“Whatan

absolutewaste!,5Lamprechtsays.

I.WhatmadeHamlinsoexcitedwhenhewasflyingoverthepark?

A.Filmingthehugenationalpark.B.Reportingtheeventintheair.

C.Picturingtherunningrhinos.D.Spottingtherareanimals.

2.Whatdoestheunderlinedpart“theonesMreferto?

A.Thefilmmakers.BTheelephants.C.Thegiraffes.D.Thehunters.

3.WhatdidHamlindecidetodoafterlearningabouttheevent?

A.UncovertheancientAfricantraditionsandcustoms.

B.Callonpeopletoprotectthehabitatofwildanimals.

C.Improvepeople'sknowledgeofpreseningwildanimals.

D.Becomeavolunteerintheanimalconservationfoundation.

Anewstudyhasdiscoveredthatmeditation（冥想）andoxygensporttogetherreduce

depression（抑郁）.TheRutgersUniversitystudyfoundthatthismindandbodycombination,

donehviceaweekfbronlytwomonths,reducedthesymptomsfbragroupofstudentsby40

percent.

“Wearcexcitedbythefindingsbecausewesawsuchameaningfulimprovementinboth

clinicallydepressedandnon—depressedstudents,MsaidleadauthorDr.BrandonAiderman."It

isthefirsttimethatbothofthesetwobehavioralwayshavebeenlookedattogetherfbrdealing

withdepression.”

Researchersbelievethetwoactivitieshaveaninteractiveeffectincombatingdepression.

AidermanandDr.TraceyShorsdiscoveredthatacombinationofmentalandphysicaltraining

（MAP）enabledstudentswithmajordepressivedisordernottoletproblemsornegative

thoughtsdefeatthem.

Rutgersresearcherssaythosewhoparticipatedinthestudybeganwith3（）minutesoffocused

attentionmeditationfollowedby30minutesofoxygensport.Theyweretoldthatiftheir

thoughtsdriftedtothepastorthefuturetheyshouldrefbeusontheirbreathing,enablingthose

withdepressiontoacceptmoment-lo-inomentchangesinattention.

Shors,whostudiestheproductionofnewbraincellsinthehippocampus—partofthebrain

involvedinmemoryandlearning-saysscientistshaveshowninanimalmodelsthatoxygen

sportexercisekeepsalargenumberofcertaincellsalive.

Theideafbrthehumanintervention干预）camefromherlaboratorystudies,shesays,withthe

maingoalofhelpingindividualsacquirenewskillssothattheycanlearntorecoverfrom

strcssfi.illifeevents.

Bylearningtofbcustheirattentionandexercise,peoplewhoarefightingdepressioncan

acquirenewlearningskiLsthatcanhelpthemprocessinformationandreducethe

overwhelmingrecollectionofmemoriesfromthepast,Shorssays.

“Wcknowthesetreatmentscanbepracticedoveralifetimeandthattheywillbeeffectivein

improvingmentalhealth.''saidAlderman.*4Thegoodnewsisthatthisinterventioncanbe

practicedbyanyoneatanytimeandatnocost.^^

4.Whatmadetheresearchsodifferent?

A.Adoptingawayofmeaningfultalk.

B.Combiningthetwowaystotreatdepression.

C.Treatingdepressionwithspecialmedicine.

D.Cuiiipiiiingihcdcpicbscdwiilitheiiun-dcpicbscd.

5.Theunderlinedword“combating”inParagraph3canbereplacedby.

6.WhatisShors'mainpurposeofherstudies?

A.Tofindoutcertainbraincellsofhumans.

B.Tostudytheproductionofnewbraincells.

C.Toofferpeopleanewmethodtotreatstress.

D.Todecidethelinksbetweenstressandexercise.

Sleepissurprisinglylittleunderstood.Scientistsstillhaven'tagreedonhowitevolved,orwhat

itspurposeis.Whatwedoknow,however,isthatitisvital—andthatmanyofusaren'tgetting

enough.

Thisispartlyasymptomoftheso-called“greatacceleration”—thespeedingupofeveryday

life,drivenlargelybytechnology.Asweworkandplayharder,sleepgetssqueezedout.

Studiesshowthatwe'regettinglessandworsesleep:inonesurveyonly15%ofBritonssaid

theyfeltrefreshedbyit.

Thegreataccelerationhaspushedourbodiesoutofsynch（司步）withtheday/nightcycle—and

theresultiswhatexpertscallsocialjetlag（时差）.Weliveat“worko'clock”,forcingourselves

backtonormalatweekends.AccordingtoTillRoenneberg,oneoftheworld'sleadingsleep

researchers,"themajorityofthepopulationintheindustrializedworld''suffersfromthis

“fbreedsynchrony''andpaysthepriceintermsofhealthandwellbeing.

ShiftworkisnowclassifiedasaprobablecauseofcancerbytheWorldHealthOrganization,

followingmonitoringofnightworkersaswellasstudiesinwhichmicewereforcedtochange

theirday/nightcycle.Aswellasincreasedcancerrisk,theanimalsdevelopedallkindsofother

problemsandhadshorterlifespans.

Longnightshiftshavebeenheldresponsiblefbrallmannerofaccidents.Oneofthekey

symptomsofsleeplossisthatyoudon'trealizehowbadlyoffyouare.Whenscientists

monitoredjuniordoctorsatnight,theyfound“micro-sleep”eventshappeningallovertheir

brains:theywouldbepartlyorlargelyasleepinthemiddleofconversations,andeven

operations.

Eventhosewithkinderschedulessufferandsocialjetlagcancauseustofallintoanoddcircle:

caffeinetowakeusupinthemorning,alcoholtocalmusdownintheevening.Butalcoholor

sleepingtabletsdon'tgiveusproper,naturalsleep,meaningthatweneedevenmorestimulants

togetgoingagain.

Sohowcanwefixthis?Wecanalsofindandfollowour^chronotype^.Beingalark（云雀）or

anowl（猫头鹰）isnotjustamatterofpsychologicalpreference,it'sgeneticallydetermined.

Peopleshouldprobablybeworkinghoursthatsuittheirchronotype;jobswithshifting

schedulesshouldgotothoseinthemiddleofthespectrum,whofinditeasiertoadjust.Ifwc

builtourschedulesaroundwhenwcwerebiologicallyprogrammedtofeelbest,we'dbemore

productive—andhappierandhealthier,too.

7.Peoplenowhaveworsesleepmainlybecauseof.

A.thcfastlifepaceB.socialjetlag

C.shifiworkinghoursD.toomuchcafieine

8.Itcanbeinferredfromthepassagethat.

A.peopledon'tliveanormallifeonweekdays

B.nightworkersaremorelikelytosuffercancer

C.doctorsworkinginthedaytimemayfallasleepinoperations

D.peopleusingsleepingtabletsfindithardtogetrefreshedinthemorning

9.“Chronolype“inthelastparagraphreferstoour.

A.sleepingpatternB.interestinbirds

C.geneticcharactersD.workingschedule

YoumayhaveseenatalkingparrotonaTVshow,inamovie,oreveninsomeone'shome.The

parrothaslearnedtocopysoundsthatpeoplemake.Birdsarenottheonlyanimalsthatcan

copythenoisestheyhear.Dolphins,bats,andsomeapesalsocopysounds.Nowwecanadd

elephantstothislistofcopycats.

Dr.JoycePooleisazoologist.Shestudiesthesoundsofelephants.WhileshewasinKenya,

shewouldhearstrangenoisesmadebyMlaikaaftersunset.MlaikawasaIO-year-oldAfrican

elephant.

Mlaikalivednearahighway.Dr.Poolesays,“IcouldnottellthedifferencebetweenMlaika's

callandthedistanttrucknoise."SheandotherscientistsstudiedMlaika'ssounds.Itturnedout

thatMlaikawascopying:hesoundsofthetrucksdrivingby.WhywouldMlaikacopytrucks

thatsheheardgoingbyonthehighway?Animalsthatareabletocopysoundsmayenjoy

practicingnewsounds.Whentheyarekeptoutsideoftheirnaturalenvironment,theymaycopy

unusualsounds.Thatmaybewhyanelephantwouldcopythesoundofatruck.

“Mlaikawasnottheonlycopycatelephant,Dr.Poolesays.Calimeroisa23-year-oldmale

Africanelephant.Hespent18yearswithtwofemaleAsianelephants.Asianelephantsmake

chirpingsounds(soundsmadebybirds)totalkwithoneanother.Africanelephantsusuallydo

notmakechirpingsounds.ButCalimeronowdoes.HeiscopyinghisAsianelephantfriends.

Dr.Poolesaysthatelephantsneedtoformbondswiththeirfamilyandfriends.Shesays,“They

makesoundstocommunicatewitheachother.Whentheyareseparated,theyusesoundsto

keepincontact.,>

Parrots,dolphins,humans,andelephantsshowthatbeingacopycatisonewaythatanimalsand

peoplemakenewfriendsandkeepoldones.

10.AccordingtoDr.Poole,whatdoesMlaikacopy?

A.Thesoundofpeople.B.Thcsoundoftrucks.

C.ThesoundofCalimero.D.Thesoundofbirds.

11.Fromparagraph4,wecanknow.

A.Calimeroisa23-year-oldmaleAsianelephant

B.Africanelephantsnevermakechirpingsounds

C.Asianelephantsmakechirpingsoundstotalkwithbirds

□.Elephantsmakesoundstokeepintouchwitheachother

12.Accordingtothepassage,animalsliketobecopycatsbecausetheyneed.

A.Tokeepintouchwithnature.

B.Topleasepeopleandotheranimals.

C.Tomakenewfriendsandkeepoldones.

D.Toavoiddangerfromtheoutsideworld.

DONALDSLOAN

GatesIlallAfterMay2009:

UniversityofKansas46ClaytonDrive

Lawrence,KS66045St.Louis,MO63130

913-243-1682314-726-8840

ObjectiveToworkwiththeclient（委托人）populationinasocialserviceposition.

EducationB.A.,UniversityofKansas,Lawrence,KS,2009

Major:SocialScniccs

Minor:AppliedPsychology

ExperienceAssistantActivitiesSupervisor.FairviewNursingHome,Lawrence,KS,

November2006-present.Helporganizeandimplementrecreationalactivitiesfbrnursinghome

residents.Activitiesincludecrafts,dances,daytrips,sing-alongs,andvisitingperformers.

HotlineVolunteer.TeenCrisisCenter,Lawrence,KS,September2006-May2007.Handled

crisiscallsfromteenagersinthecommunity.Dealtwithdruguse,unwantedpregnancies,

failinggrades,andthebreakdownofparent-teenrelationships.

Nurse'sAide.DanyersGeneralHospital,St.Louis,MO.Summer2006.Assistednursesin

patientcare.Tookhistories,updatedcharts,andhelpedpreparepatientsfbrsurgery.

ActivitiesUniversityConcertBoard.Workwithotherbeardmemberstoplanandimplement

on-campusconcerts.

SeniorGiftCampaign.Helpmanagethecampaigntoraisetiindsfbrtheseniorclassgifto

theuniversity.

ResidenceHallProgrammingBoard.PlannedsocialeventsfbrEggarResidenceHall.

SkillsFluentinFrench.Watersafetyinstructor.Skilledatworkingwithpeople.

InterestsSkiing,softball,classicalmusic,andguitar.

13.Thispassageismostprobably.

A.anadvertisementfbrenrollingnewemployees

B.aschoolreportattheendofanacademicyear

C.aseirintroductionmeanttoapplyfbrajob

D.apartofarecommendationletterfromauniversity

14.Accordingtothe"Experience"section,wecaninferthatDonaldSloancanbe.

A.awiseleaderB.askillfulperfbnner

C.agiftedscientistD.agoodsocialworker

15.FromthepassagewelearnthatDonaldSloan.

A.isgoodatsinginganddancingB.isabouttograduatefromauniversity

C.hasaninterestinbeingasurgeonD.specializesinappliedpsychology

ChinesewriterMoYanhaswonthe2012NobelPrizeinLiterature,announcedtheSwedish

AcademyinStockholmonThursday.ThewinmakesMoYanthefirstChinesecitizentowin

theNobelinits111-yearhistory.Informedofhiswintoday,theauthor,whowashavingdinner

athome,was“oveijoyedandscared”.

Bornin1955toparentswhowerefarmers,MoYan—apennamefbrGuanMoye,grewupin

Gaomi,ShandongprovinceineasternChina.Attheageof12,heleftschooltowork,firstin

agriculture,laterinafactory.In1976hejoinedthearmyandduringthistimebegantostudy

literatureandwriting.

Hepublishedhisfirstbookin1981,butfoundliterarysuccessin1987withHongGaoliang

Jiazu,whichwassuccessfullyfilmedinthesameyear,directedbyfamousChinesedirector

ZhangYimou.Inhiswriting,MoYandrawsonhisyouthfulexperiencesandonsettingsinthe

provinceofhisbirthandhisworksshowthelifeofChinesepeopleaswellasthecountry's

uniquecultureandfolkcustoms.MoYanisknownasaproductivewriter.Inadditiontohis

novels,hehaspublishedmanyshortstoriesandessaysonvarioustopics.Despitehissocial

criticism,heisseeninhishomelandasoneofthemostfamouscontemporaryauthors.Dozens

ofhisworkshavebeentranslatedintoEnglish,French,Japaneseandmanyotherlanguages.

TheawardingceremonyhasbeenheldonDecember1().Thewinnerhaswonamedal,a

personaldiplomaandacashawardofaboutSImillion.

16.HowdidMoYanfeelwhenhewastoldaboutthenews?

A.Excitedandproud.B.Worriedandcautious.

C.UncertainandshockedD.Happyandsurprised.

17.OneofMoYan'scharacteristicsofwritingisthathe.

A.focusesonsocialproblemsinthecountry

B.writesabouttopicsheisfamiliarwith

C.describeshischaractersinauniqueway

D.explainsdifficultmattersinsimplewords

18.What'sthebesttitlefbrthispassage?

A.MoYanWinsNobelPrizeinLiterature

B.AnIntroductiontoNobelPrize

C.HowMoYanGetsNobelPrize

D.AWorldFamousWriter,MoYan

Agreatdealofattentionshouldbepaidtothechoosingofavacationdestination.Herearcfour

ofthemust-seeattractionsinAlberta,Canada.

TheBanffGondola

TheentireBanft'areaisadestinationfilledwithwonderfulthingstodo,butoneofthebest

thingstodoisridetheBanffGondola（吊船）.Thisgondolatakesvisitorshighabovethe

bcautifiilsceneryofthearea,givingthemwonderfulviewsandphotographicopportunities.

Therideisalsothrillingwithasteadyaltitudechangeasthevehiclegetshigherandhigher.

TheCalgaryStampede

TheCalgaryStampedeisoneofthebesteventsinAlberta.Ithasbeentakingplaceforavery

longtime.Theentireeventisworththeeffortingoing,everythingfromtheopeningparades

andcelebrationstothelatereventsandcompetitions.

JohnstonCanyon（峡谷）

Forthosewantingtoexperiencesomeofthebcautifiilnaturalsurroundingsthatarcofferedin

Alberta,avisittoJohnstonCanyonisamust.Inthiscanyon,therearcanumberofimpressive

waterfiillsavailable.Theyareveryeasytoapproach.

Miettehotsprings

ThenumberoneattractionthereattheMietteHotSpringsisthehotspringsthemselves.The

poolsarcfilledwithwaterstraightfromthespringsandarcveryclean.Thereisplentyofroom

toswimandplay.Therearealsoquietspotstorelaxandenjoysomequiettime.Forthose

withoutastrictschedule,stayingatthehotspringsfbranightortwoisagreatchoice.

19.WhatcanvisitorsdowhentheyridetheBanffgondola?

A.Goonopeningparades.B.Enjoysceneryfromabove.

C.Drivethedangerousvehicle.D.Reachtopsofmountains.

20.WhatdotheMietteHotSpringsprobablyprovide?

A.Accommodation.B.Medicalcare.

C.Photographing.D.Freetransportation.

21.Whichattractionfeamresmainlyactivitiesinsteadofscenery?

A.JohnstonCanyon.B.TheBanffGondola.

C.MietteHotSprings.D.TheCalgaryStampede.

Plimoth,Massachusetts,aboutfbrty-fivemilesoutofBoston,isapopulartouristattraction.

Plymouthwasthesiteofthesecondcolony（殖民地）inAmerica.OnNovember11,1620,a

smallshipofEnglishsettlerslandedthereandstartedacolony,lookingforabetterlife.

OneofthemostpopularattractionsinPlymouthisPlimothPlantation.PlimothPlantationwas

thedreamofHenryHornblowerIIWhenhewasaboy,Hornblowerreadandheardstories

aboutthepilgrimswholivedinPlymouth.Whenhewasolder,heworkedwith

archaeologists（考古学家）inPlymouthformanyyears.Theyfoundmorethan350,000

artifacts（人工制品）formthetimeofthecolonists.Atthesametime,historiansstudied

pilgrims'fathergave$2,000tothePilgrimSociety,allowingittorebuildPlimothPlantation.

TheSocietymadereproductionsoftheclothes,tools,fiirnlurc,andhousesofthe1620s.

Today,PlimothPlantationisalivingmuceuniofmorethantwentyhomes,shops,andgradens.

Visitorscanwalkthroughthecolonialtownwhereeachhouseonthemainstreetlooksexactly

likeahouseofthe16205Thosewhoworkinthemuseumarethe"colonists"andtheydress,

talk,andcarryouttheactivitiesofcolonialAmerica.Theywearthesamekindsofclothesthat

thePlymouthcolonistsusedtowear.Thewomencookinopenfireplacesandfollowcolonial

recipes.Themanraisethesamevegetablesandcareforthesamekindsofanimalsthatwere

presentincolonialtimes.Everyoneusesthesamekindsfbrtoolsthatthepilgrimsusedalmost

fourhundredyearsago.Whenvisitorstalktothe“colonisis”,theyanswerwiththesame

Englishandthesameaccentthatthecolonistshad.

Overtheyears,PlimothPlantationhaschangedalot.Today,itisalsopossibletovisita

replica（fi$ijuu）ofMayflower-mayflovverII,theshipthepilgrimssailedfromEnglandto

Plymouth.ThereisalsoareproductionofaWampanoaghomesite,whichintroducesvisitorsto

thelifeoftheIndiantribe（部落）whohelpedthecolonistslivethroughtheirfirstyearsintheir

newcountry.

22.Accordingtothetexr,HenryHornblowerII.

A.livedinthelate1620s

B.showedgreatinterestinhistory

C.gotalotofmoneyfromthecolonists

D.hadproblemsfittingimothePilgrimSociety

23.InPlimothPlantation,the“colonists”.

A.aregotgoodatraisinganimals

B.arenotallowedtotalkwithvisitors

C.livethesamelifeasthePlymouthcolonistsdid

D.speakthesameEnglishasAmericansdo

24.AsavisitorinPlimothPlantation,youmay.

A.spendafewdayswiththeIndiantrive

B.seewhatMayflowerIIislike

C.findmanyshops,zoosandgardens

D.learntocookintheoldhouses

Galaxysawamanandawomanwhocommunicatedwiththesignlanguageatthetrainstation

whenshewasonthewayhomeoneevening.Shenoticedthatthewomanaskedthemanfbrthe

direction.Hetoldherthathedidnotknow.Galaxydecidedtohelpthem.Shehadlearnedthe

signlanguagewhensheservedasavolunteerinthedeafandmute（聋哑）school.Thenshe

showedthewomanthedirectionandleftheremailaddresstothemincasetheyneededherhelp

later.

Shereceivedanemailfromthatmanthenextday.Kazrimwashisname.Galaxyrepliedhis

mailsincerely.

Theybothstartedchattingonlinesoonafterandbeganseeingeachother.Althoughtheyonly

communicatedwiththesignlanguage,itneverbotheredher.

Galaxywasfbndofhimgradually.Obviously,Kazrimwasthesametoo.HepresentedGalaxy

withabunchofsunflowersandaskedhersincerely,4tAreyouwillingtobemygirlfHend?”

Galaxywaspleasantlysurprised.Sherequestedhimtogivehersometimetopersuadeher

parents.

Asshehadexpected,herparentswereveryangryaftertheyhadlearnedoftheirlovestory.

Galaxyexplained,4tKazrimisanexcellentandaveryoptimisticperson.Hehasaverypositive

attitudetowardslifeandwork.Hecaresfbrothersalways.Heis100%betterthanthenormal.

Moreover,themuteisstillahuman.Heshouldpossessaperfectandwonderfullove.M

Herparentsaskedtoseehim,then.TheveryworriedGalaxytookKazrimhomeafewdays

later.Whentheywereonthetrain,Kazrimtoldher,"I'mgoingtotellyourparentsI'llbe

lookingafteryouwellwithallmylife!”Galaxywasdeeplymoved.

Assoonastheyhadenteredthehouse,Galaxyintroducedhimtoherparents.Shesaid,“Thisis

Kazrim.MJustrightalterherspeech,anunbelievablethinghappened.Kazrimthrewthegift

awayandheldherinhisarmstightly.

Hesaid,“YOUCANTALK?”ItwasthesamequestionthatGalaxywantedtoask,too.

Thefourpeoplewereshockedallofasudden.Asamatteroffact,Kazrimalwaysbelievedthat

Galaxywasamuteandhestillfellinlovewithherdeeply.

25.HowdidGalaxyandKazrimgettoknoweachother?

A.Theymeteachotherbychance.

B.Thcywereintroducedtoeachother.

C.Thcyoncestudiedatthesameuniversity.

D.Theybothservedinaspecialneedsschool.

26.HuwdidGalaxypiobablyuuiiiiiiuniualcwithKuziimbcfuiusheluukhimliunic?

A.Writingwordsonpaper.B.Usingthesignlanguage.

C.Judgingfromhisexpression.D.Speakinghernativelanguage.

27.Whatcanwelearnaboutthetwoyoungpeoplefromthepassage?

A.Theyfellinloveatthefirstsight.

B.Theycheatedeachothertowinlove.

C.Thcymistookeachotherfbrbeingmutes.

D.TheyignoredtheangerofGalaxy'sparents.

Thereisahugedemandforsharkfins（鳍）inAsiancountries.Asaresult,manysharksare

caughtandkilled.InPalau,wheremorethanhalfoftouristsaredrawnbydivingexcursions,

eachreefsharkbringsinabout$179,000intourismrevenueannually,oraboutSI.9million

duringitslifetime.Ductooverexploitationandlackofprepermanagement,manyshark

speciesareunderconsiderableriskofunrecoverabledeclinewithsomespecieshavingdeclined

tonearextinctioninrecentyears.Accordingtoreports,sharksarebeingkilledatanalarming

rateofupto273millionworldwideperyear.

Someexpertspredictthatifthekillingcontinuesatthecurrentratemanysharkspecieswillbe

lostforever.Ilcanbeverydangerous.Sharksareveryimportantandtheyshouldbeprotected.

InastudyoftheeastcoastoftheUnitedStates,11speciesofsharkswereeliminatedfromtkeir

range.Ofthe14speciesofoceanlifethatthosesharksusedtoeat,thepopulationsof12

explodedandcausedgreatdamagetotheecosystem.Forexample,thecownoseray（解）

populationwasnolongerkeptundercontrolbysharksancsogrewoutofcontrol.Asaresult,

theraysdestroyedthepopulationofbayscallops（扇贝）,theirfavoritefood.Thescallop

fishery,whichhadbeeningoodconditionforover100years,waswipedout.Also,theremoval

ofthescallopsmostlikelyhadaneffectonwaterqualityastheywerenolongerthereto

performtheirfiinctionofcleaningthewater.

Sharksplayavitalroleintheoceansinawaythattheaveragefishdoesnot.Mostsharksserve

astoppredatorsatthepinnacleofthemarinefoodpyramid,andsoplayacriticalroleinocean

ecosystems.Directlyorindirectlytheyregulatethenaturalbalanceoftheseecosystems.Sharks

tendtoeatveryefficiently,goingaftertheold,sick,orslowerfishinapopulation,keepingthat

populationhealthy.Sharkshelpkeepmanypopulationsofoceanlifetotherightsizesothat

thoseprey（猎物）speciesdon'tcauseharmtotheecosystembybecomingtoopopulated.The

oceanecosystemismadeupofverycomplexfoodwebs.Forthemostpart,sharksarcatthetop

ofthesewebsandareconsideredbyscientiststobe"keystone"species,meaningthatremoving

themmaycausethewholestructuretofallapart,includingkeyfisheriessuchastunaandother

importantfishspeciesthatmaintainthehealthofcoralreefs.

Therefore,weshouldprotectsharksbecausedoingsoistoprotectthewholeecosystem.

28.What'sthemainreasonfbrkillingsharksinAsia?

A.Sharkfinsareingreatneed.B.Peoplek.llthemoutoffear.

C.Sharksoftenattackswimmers.D.Sharksbreakthebalanceofthesea.

29.Afterthenumberofcownoseraysgreatlyincreased,.

A.waterqualityimprovedaswellB.bayscallopsgrewoutofcontrol

C.thehealthofcoralreefsworsenedD.thelocalscallopfisherywasharmed

30.WhatcanwcknowaboutsharksfromParagraph4?

A.Theycan'tfindenoughfoodtofeedon.

B.Theynevereattheold,sickorslowerfish.

C.Theirlargepopulationscanharmtheecosystem.

D.Theyplayakeyroleinkeepingtheecosystemhealthy.

参考答案

1.D

【解析】细节理解题。根据文章第一段的句子“Seeingthesegirat'fesfromtheairwasreally

exciting,...That'sbecauseGarambaishuge,extendingovernearly2,000squaremilesofmostly

forestedland,andit,sarare,luckyeventtocomeacrossanyofits40remaininggiraffes.“可知»Hamlin

在公园上方看见稀有动物感到很兴奋。故选D。

2.C

【解析】词义猜测题。根据文章第一段的句子“DocumentaryfilmmakerDavidHamlinrecallshow

excitedhewasatthesightofthreegiraffesstandinginasmallclearingwhenhewasflyingoverthe

DemocraticRepublicoftheCongo'sGarambaNationalParkinlateJune.“可知，DavidHamlin在公

园看见三只长颈鹿，接下来第二段介绍“Twelvehourslater,peoplelookingafterthenationalpark

reportedhearinggunshots,andtheylaterdiscoveredthreebullet-riddledbodiesofdeadgiraffesinthe

sun.“三只长颈鹿被杀害，DavidHamlin说torealizethatmostlikelyitwastheseguys,theonesweM

seen.,他意识到很可能就是他看见的三只长颈鹿。故