2021年天津市高考英语总复习：阅读理解（附答案解析）

2021年天津市高考英语总复习:阅读理解Asdoctorsandnursesstruggleformedicalsuppliestofightthecoronaviruspandemic,helpiscomingfromanunlikelyplace-highschoolstudents.TheCareerTechnicalEducationCharter（CTEC）HighSchool,US,hasbeenutilizing（利用）itsnine3Dprinterstomakefaceshields（防护面罩）forhealthcareworkersonthefrontline.FacemaskshavebeenparticularlychallengingtofindacrosstheUSsincetheoutbreak.GavinNewsom,GovernoroftheStateofCalifornia,announcedrecentlythatthestateissettospend$1billion（about7billionyuan）topurchase200millionmaskseachmonthtoboostitssupply.ValerieCastro,16,aCTECsophomore,ispartofateamofteachersandstudentswhocameupwithdesigntweaks（改进）thatcutalmost30minutesoffthetimeittakestobuildafaceshield."That'swhatmakesthisschoolkindofdifferent,"shesaid."Eventhoughallthesebadthingsarehappening,we'reabletomakeanimpactpositively.It'slikeleavingyourlittlemarkontheworld."Makerbot,aNewYork-basedcompanythatmakes3Dprinters,hasalsohelpedCTECtomaximizethebuildingprocess.They'vebeenchurningout（大量生产）nearly100shieldseachday,andthatproductionrateissettotripleas20more3Dprinterscomeonlineattheschool.CTECstaffandstudentshaveprovidedmaskstohospitals,dentists,urgentcarecentersandretirementhomesinFresnoCountyandthesurroundingareasinCalifornia."Iwasshocked,"StacyVohratoldschoolstaffinavideo."WeweresothrilledtohavethedonationfromCTEC.Thisissomethingthatwe'vebeenneeding."Theentirestaffhasswitchedfromdailyteachingtofaceshieldproduction,saidJonathanDelano,directorofCTEC.Whenthenew3Dprintersarrive,someofthemwillgotostudents'housessokidscanhelpwiththehands-onprocess, Delanosaid."That'showwegetthroughthesethings,"Delanosaid."Ourhighschoolfocusesongivingbacktothecommunity.Studentsshouldknowtheskillstheyholdcanhaveanimpactonacommunity.”WhatsetsTheCareerTechnicalEducationCharterHighSchoolapart,accordingtoCastro? Theyjoinedhealthcareworkersonthefrontline.Theydonatedabout200millionmasksinamonth.Theydesignedamoreprotectivefaceshield.Theymadeadifferenceinsuchdifficulttimes.AccordingtoParagraph7>whatwillhappenwhentheytripletheirproductionrate?_Theywillget20more3DprintersfromMakerbot.Theywillproduceafaceshieldinlessthan30minutes.Theywillbeabletoproduceabout300faceshieldseveryday.Theywillstarttoselltheirfaceshieldsontheirschool'swebsite.WhatdoesDelanothinkofCTEC'sfaceshieldproduction?IthasboostedthesupplyofmasksinLosAngeles.Ithasinterruptedtheschool'sdailyteaching.Itremindsthestudentsofthevalueoftheirskills.Itchallengesstudentstohandle3Dprintersbythemselves.Whatisthetextmainlyabout?Teenagershelpingdesignandproducefacemasks.3Dprintingtechnologybeingusedtoproducefacemasks.Donationsfromhighschoolstofightthepandemic.Ahighschoolmakingcontributionsbyproducingfaceshields.2.LONDON(Reuters)-Organicfruit,deliveredrighttothedoorstep.ThatiswhatGabrielGoldprefers,andheiswillingtopayforit.Ifthisisnotpossible,the26-year-oldcomputertechnicianwillspendtheextramoneyatthesupermarketbuyingorganicfood."Organicproductisalwaysbetter,"Goldsaid."Thefoodisfreeofpesticides(杀虫剂)，andyouaregenerallysupportingfamilyfarmsinsteadoflargefarms.Andmoreoftenthannotitislocallygrownandseasonal,soitistasty."Goldisoneofthegrowingnumberofshoppersbuyingintotheorganictrend,andsupermarketsacrossBritainaredependingonmorelikehimastheygrowtheirorganicfoodbusiness.Buthowmanyshoppersreallyknowwhattheyaregetting,andwhyaretheywillingtopayahigherpricefororganicproduct?MarketresearchshowsthatGoldandotherswhobuyorganicfoodcangenerallygiveclearreasonsfortheirpreferences-buttheirknowledgeoforganicfoodisfarfromcomplete.Forexample,smallamountsofpesticidescanbeusedonorganicproduct.AndaboutthreequartersoforganicfoodinBritainisnotlocalbutimportedtomeetgrowingdemand."Thedemandfororganicfoodisincreasingbyaboutonethirdeveryyear,soitisaveryfast-growingmarket,"saidSueFlock,aspecialistinthislineofbusiness.MoreandmorepeopleinBritainarebuyingorganicfoodbecause.theyaregettingrichertheycangetthefoodanywheretheyconsiderthefoodfreeofpollutiontheylikehome-grownfruitWhichofthefollowingstatementsisTRUEaboutmostorganicproductsoldinBritain?Itgrowsindoorsthroughouttheyear.ItisproducedoutsideBritain.Itisgrownonfamilyfarms.Itisproducedonlargefarms.Whatisthemeaningoftheunderlinedwords"theorganictrend"inthesecondparagraph?Growinginterestinorganicfood.BetterqualityoforganicfoodRisingmarketfororganicfood.Higherpricesoforganicfood.Whatisthebesttitleforthisnewsstory?Goodqualitiesoforganicfood.ThemakingoforganicfoodinBritain.Organicfood-toimportornot?Organicfood-healthy,orjustforthewealthy?3.Lonelinesshurts.Itispsychologicallydistressingandsophysicallyunhealthythatbeinglonelyincreasesthelikelihoodofanearlierdeathby26percent.Butpsychologiststhinkithurtssomuchbecause,likehungerandthirst,lonelinessactsasabiologicalalarmbell.OnMarch26,justastheC0V1D-19pandemicgrippedtheworld,researchersfromtheMassachusettsInstituteofTechnologypostedareportonbioRxiv.Itisthefirststudyinhumanstoshowthatbothlonelinessandhungersharesignalsdeepinapartofthebrainthatgovernsverybasicimpulsesforrewardandmotivation.So,ourneedtoconnectisapparentlyasfundamentalasourneedtoeat.Theresearchersusedfunctionalmagneticresonanceimaging（fMRI）tocomparebrainresponsestolonelinessandhunger.40adultparticipantsunderwenta10-hoursessiondepriving（剥夺）themoffoodandanother10-hoursessiondenyingthemsocialcontact.Bothsessionsservedasacontrol（对照）conditionforeachother.Thesocial-isolationconditionwaschallengingtoarrange.Somepeoplearelonelyinacrowd,whileothersenjoysolitudeToinduce（弓|起）notjustobjectiveisolationbutsubjectivefeelingsofloneliness,theresearchershadtheparticipantsspendtheirtimefrom9A.M.to7P.M.inaroomatthelaboratorywithoutphones,laptopsorevennovelsincasefictionalcharactersprovidedsomesocialsupport.Puzzleswereallowed,aswaspreapprovednonfictionreadingorwriting.Researchersthenfocusedonamidbrainregioncalled"thesubstantianigra",acenterofdopamine（多巴胺）releaseinvolvedwithmotivationanddesire.Thedopaminergicresponseshowsastrongwanting.Inthescanner,participantssawimagesoftheirpreferredformsofsocialinteractionandoftheirfavoritefoods,aswellasacontrolimageofflowers.Itwasthenfoundthatthesubstantianigrarespondedonlytocuesofwhattheyhadbeendeprivedof.Themagnitudeoftheresponsecorrelatedwiththesubjects'self-reportsofhowhungryorlonelytheywere,thoughthefeelingsofhungerwereconsistentlystronger.Finally,theresearchersusedmachinelearningtoconfirmtheirfindings.Asoftwareclassifiertrainedtorecognizeneuralpatternsduringfasting（斎戒）provedabletorecognizesimilarneuralpatternsfromthesocial-isolationconditioneventhoughithadnever"seen"them.Sothereseemstobeanunderlyingsharedneuralsignaturebetweenthetwostates.EvenbeforetheCOVID-19pandemic,anobviousnextquestionfortheworkwaswhetherdifferentformsofsocialmediacouldsatisfytheneedforsocialconnection.Thoseresearcherswereneverabletogetfundingforsuchastudy.Butnowitseemstheywill.ThereportpostedonMarch26.isbasedonthesocial-isolationconditionduringthepandemicisthefirststudyontheeffectoflonelinessonhumanbeingsreflectsthesimilaritybetweenlonelinessandhungershowshumanneedforrewardandmotivationWhatisParagraph4mainlyabout?Whyinducingfeelingsoflonelinesswaschallenging.Howlonelinesswascreatedamongparticipants.Whyparticipantsweredeniedaccesstophones.Howresearcherscomparedbrainresponses.(3)Wecaninferthatparticipants'substantianigrashowedresponse(s)totheimageofflowers.littlevariousstrongconsistent(4)Whatdoestheunderlined"itHinParagraph6referto?Theneuralsignature.Fasting.Machinelearning.Theclassifier.4.Dolphin(海豚)ornotadolphin?Thatisthequestion!Yousee,thereareseveraltypesofdolphins.Somearesaltwaterdolphinswhileothersareriverdolphins."Whatarethe32typesofdolphins?"Whenpeopleareaskingthequestion,theyareactuallyreferringtothesaltwaterdolphinsinoceansandseas.Theriverdolphinslivinginfreshwaterarenotincludedinthesespecies(物种).Butwhatwouldbetheanswerinthiscaseifweask,"Dolphinornotadolphin?”Theanswerwouldobviouslybeyes.Riverdolphinsstillbelongtothedolphinfamily.Amongthe32typesofdolphins,somedonotactuallyweartheword"dolphin"intheirnames,suchasthetucuxi,whileothersactuallyhavetheword"whale"aspartoftheirnameseveniftheyarenotwhalesbutinfact,belongtothedolphinfamily,forexample,themelon-headedwhaleandthekillerwhale.Sowhatwouldbetheanswertothequestion"dolphinornotadolphin?"inthesecases?Itwouldbeyes.Allthesespeciesdobelongtothedolphinfamily.Anotherquestionthatpeopleaskis,"Aretheseaanimalsthatperformataquariums(水族馆)alldolphins?nSo,italwaysseemstocomebacktothequestion,"Dolphinornotadolphin*?"Welltheanswerisnointhiscase.Theseaanimalsthatperformtherearenotalldolphins.Thebelugawhichpeopletendtothinkbelongtothedolphinfamilybecausetheyshowwhatseemslikeasmile,likemostdolphins,areinfactaspeciesofthewhalefamily.Nowthatyoureadthesefactsaboutdolphins,youprobablyrealizethatcertainseaanimalsmayappeartobepartofthedolphinspeciesandthatothersseemtobepartofthewhalefamilybutineithercase,itisnotobviousandcanbesurprisingwhenyouidentifyaseaanimalasbeingadolphinornotadolphin.Thatisthequestion!Whichofthefollowingactuallybelongstothewhalefamily?Thetucuxi.Thebeluga.Thekillerwhale.Themelon-headedwhale.Whatdoweknowaboutthemajorityofthedolphins?Theyperformforaudience.Theyappearfriendly.Theylooklikewhales.Theyliveinfreshwater.Whatparagraphcouldbeaddedaboutdolphinsbeforethelastparagraphifyouweretheauthor? Thelivingarea.Dolphintraining.Theeatinghabits.D. Furtheridentification.Thisarticlecanbeclassifiedas.popularscienceliteraryfictionanewsreportatraveldiaryExperienceallthemostfamoussightsinCopenhagenwithourHopOn-HopOffandCitySightseeingtoursequippedwithaudioguideinIIlanguages.Choosebetweenthreedifferentroutesthatwilltakeyouthroughdifferentanddiverseareasofthecity：TheClassicCopenhagentour,theUrbanGreentourortheColorfulCopenhagentour.Itisuptoyouifyouwanttostayonboardforafullrideorifyouwanttogetoffandexploresightsontheway.Youcanhopoffandonasmuchasyoulike.Ifyoupreferanon-stoptour, thenCopenhagenPanoramaisperfectforyou.Thistourwilltakeyoutoallthemainattractions.ItisliveguidedinEnglishandincludesphotostopsatTheLittleMermaid,AmalienborgPalaceandtheOpera.DaneslovebeingclosetothewaterandthisisnoexceptioninCopenhagen.Thewatersideofthecityisverylively,andcitizenslovetospendtheirsparetimealongthecanals.ExploretheharborandcanalsofCopenhagenwithacanaltour.ChoosebetweentheclassicIhourliveguidedGrandTourortheHopOn-HopOffboattourwithaudioguideandexperienceCopenhagenanditsbeautyfromthewaterside.Ifyoucan'tdecidebetweenbusandboat-noworries.Youcangetboth.AticketthatcombinesbusandboatwillgiveyoutheverybestopportunitytodiscoverCopenhagenatyourownpace.Withourcombinationticketsyouevensavemoneycomparedtobuyingseparatetickets.AtickettoourcombinationtoursallowsyoutoexperienceallthatCopenhagenhastoofferfromthewateraswellasfromtheland.Ofcourse,youcanfreelyswitchbetweenourbusesandboatsatvariousspotsacrossthecityifyougoforthehop-onhop-offoption.Experienceallthemainattractionsinthecity：TheLittleMermaid,theroyalcastleAmalienborgPalace,picturesquehistoricalbuildingslikethecolorfulNyhavnandfeelthefreespiritofFreetownChristaniaandthehyggeatFrederiksbergsgreenareas.OurbusesandboatstakeyoueasilytoallthetopattractionsinCopenhagen!Thetextismostprobablytakenfrom.A• aresearchpaperB・ atextbookC. atravelbrochureD. auserguideWhatcanwelearnfromthefirstparagraph?Youcanhoponabusorboatforlimitedtimes.TheColorfulCopenhagentourisanon-stoptour.Sightseeingtoursareequippedwithvideoguidein11languages.AllthemainscenicspotsarecoveredintheCopenhagenPanoramatour.IfyouwanttofullyexploreCopenhagenatyourownpace,whichmightbethebestchoice? ChoosetheclassicIhourliveguidedGrandTour.Getacombinationticketthatcombinesbusandboattours.Firstbuyabusticketandthenbuyaboatticketforalltheattractions.ExploretheidyllicharborandcanalsofCopenhagenwithacanaltour.RiversaretheveinsoftheEarth,transportingthewaterandnutrients(营养物)neededtosupporttheplanet'secosystems,includinghumanlife.Whilemanynutrientsareessentialtothesurvivaloflife,thereisoneelementtransportedbywaterinriversthatholdsthekeytolifeandtothefutureofourplanet-carbon.CarboniseverywhereandunderstandingthewayitmovesandiseitherreleasedorstoredbytheEarthsystemisacomplexscienceinitself.Carbonstartsitsjourneydownstreamwhennaturalacidrain,whichcontainscarbondioxidefromtheatmosphere,meltsmineralsinrocks.Thishelpstransformcarbondioxidetobicarbonate(碳酸氢盐)inthewaterthatthenflowsinourrivers.Thisisaverylongprocess,whichisoneofthemainwayscarbondioxideisremovedfromtheatmosphere.Carbonistransportedbyriverstooceansandoncethatcarbonreachestheocean,itisstorednaturallyindeepseasediments(沉淀物)fbrmillionsofyears.Ascarbontravelsdownariver,differentprocessesmayimpactwhetheritcontinuestoflowdownstreamorwhetheritisreleasedintotheatmosphere.Forexample,humanengineering,likeextensivedamconstruction,willresultindramaticchangestohowwaterandsedimentstraveldowntheriver.Somecarbonthatfailstoreachtheseamayreturntotheatmosphereinsomeway,whichcausesmorewarming.Earth'sclimateiscloselyrelatedtothecarboncycle.Weallknowabouttheessentialroleofplantsinconsumingcarbondioxide,butdoweknowenoughaboutrivers?Changingthechemistryandthecourseofriversmayhavesignificantimpactsonhowtheytransportcarbon.Remember：whereverwelive,wealllivedownstream.Whereisthecarboninriversoriginallyfrom?Theatmosphere.Therocks.Theacidrain.Theupstreamareas.WhyishumanengineeringmentionedinParagraph3?Toshowhowimportanttolifecarbonis.Toexplainhownecessaryitistobuilddams.Toshowhowanaturalprocessisinterrupted.Toexplainhowhumansfightglobalwarming.Whatdoestheauthorwanttoconveyinthelastparagraph?We'dbettermoveupstreamtolive.Weshouldprotectplantsalongrivers.We'dbetterseekmorehelpfromplants.Weshouldbecautiousaboutrivermanagement.Whatisthebest出leforthetext?WhatHumansDowithRiversHowRivers'TransportingCarbonCountsWhattheCarbonCycleMeanstoUsHowLivingDownstreamAffectstheEarthTheTEDspeakerseriesfeatures"ideasworthspreading".Withover1,400tochoosefrom»we'veselectedafewthatareperfectforstudents.LarrySmith：WhyyouwillfailtohaveagreatcareerWehumansmayhaveanunfavorablehabitofmakingexcusesforourselvesorofbeingtooconfidentaboutourselves.Accordingly,LarrySmith,aprofessorofeconomicsattheUniversityofWaterlooinCanada,tellsuswhymostofuswillfailtohaveagreatcareer.Luckily,asheputsit,thereisawayout-followyourheart,aslongasitisgoodforyourcareer.AndyPuddicombe：Allittakesis10mindfulminutesBetweendanceteam,volunteeringandoh,right-lectures,yourlife'scrazyfactor（因素）isabouttogowayup.Inthisentertainingandinformativetalk,Mindfulness,expertAndyPuddicombeteachesushowtobe"morehealthy,moremindfulandlessdistracted"bytakingjust10minutesoutofthedaytobe"morepresent".ShaneKoyczan：Tothisday,forthebullied（欺凌）andbeautifulThistalkissuretostaywithyou.ShaneKoyczan'sToThisDay'isanaffectingspoken-wordpoemaboutbullyingandbeingdifferentthatgainedover10millionviewsonYouTube.Inthistalk,Koyczangivesalivereadingofthepoem,alongwithsomestoriesabouthisbackground.SusanCain：Thepowerofintroverts（性格内向者）DoesacupofteaandagoodbooksoundlikeaperfectFridaynightWhatdoesLarrySmithadvisestudentstodoforagoodcareer?A.Don'tbetoooptimistic.B.Learnfromothers'lessons.C.Nevermakeexcusesforyourself.WhatdoesLarrySmithadvisestudentstodoforagoodcareer?A.Don'tbetoooptimistic.B.Learnfromothers'lessons.C.Nevermakeexcusesforyourself.D.Matchyourinterestswithyourcareer.WhatisAndyPuddicombe'stalkmainlyabout?Howtoconcentrate.Theneedforteamwork.Howtobeagoodvolunteer.Theimportanceofgoodhealth.WhichTEDspeakermakespeoplewhoarenotsocialfeelconfident?AndyPuddicombeSusanCainShaneKoyczanLarrySmithWeallknowwhatabrainis.Adoctorwilltellyouthatthebrainistheorganofthebodyinthehead.Itcontrolsourbody'sfunctions,movements,emotionsandthoughts.Butabraincanmeansomuchmore.Abraincanalsosimplybeasmartperson.Ifapersoniscalledbrainy,heissmartandintelligent.Ifafamilyhasmanychildrenbutoneofthemissupersmart,youcouldsay,"He'sthebrainsinthefamily."Andifyouarethebrainsbehindsomething,youareresponsiblefordevelopingororganizingsomething.Forexample,BillGatesisthebrainsbehindMicrosoft.Braintrustisagroupofexpertswhogiveadvice.Wordexpertssaythephrase"braintrust"becamepopularwhenFranklinD.Rooseveltfirstranforpresidentin1932.Severalprofessorsgavehimadviceonsocialandpoliticalissues(问题)facingtheU.S.Theseprofessorswerecalledhis"braintrust".Thesewaysweusetheword"brain"allmakesense.Butotherwaysweusethewordarenotsoeasytounderstand.Forexample,tounderstandthenextbrainexpression,youfirstneedtoknowtheword"drain".Asaverb,todrainmeanstoremovesomethingbylettingitflewaway.Soabraindrainmaysoundlikeadiseasewherethebrainflowsouttheears.But,braindrainiswhenacountry'smosteducatedpeopleleavetheircountriestoliveinanother.Thebrainsare,sortof,drainingoutofthecountry.However,ifpeopleareresponsibleforagreatidea,youcouldsaytheybrainstormedit.Here,brainstormisnotanactofweather.Itisaprocessofthinkingcreativelyaboutacomplextopic.Forexample,businessleadersmayusebrainstormingtocreatenewproducts,andgovernmentleadersmaybrainstormtosolveproblems.Ifpeoplearebrainwashed,itdoesnotmeantheirbrainsareniceandclean.Tobrainwashmeanstomakesomeacceptnewbeliefsbyusingrepeatedpressureinaforcefulortrickyway.Keepinmindthatbrainwashisneverusedinapositiveway.Accordingtothetext,ifyou'retheCEOofBaiDuyoucanbecalled.theorganofBaiDuthebraindrainofBaiDuthebrainsbehindBaiDuBaiDu*sbraintrustRooseveltsuccessfullywontheelectionprobablybecause.hegothisbraintrusthegotthehelpofwordexpertshewassmartatgivingadvicehewasthebrainsbehindAmericaFromthepassage,wecaninferthat.todrainalakemeanstofillitwithalotofwaterbrainyandbrainwashareneverusedinanegativewaybrainstormingisnotagoodchoiceforapoliticalleaderforlackofcreativityacountrysuffersa"braindrain"wheneducatedpeoplemovetoothercountriesTheauthorexplainsthe"brain"expressionsby.makingcommentsmakingcomparisonsusingexamplesanalyzingoriginsWhilemostconsumerswishtoreduceplasticwaste,it'snotaneasygoaltoachieve.That'sbecausethecheapandlong-livedmaterialisfoundinalmosteverydailynecessity.Now,anIndonesian-basedcompanyhascomeupwithadelicioussolution.DavidChristian,theco-founderofEvoware,saysafterinvestigatingvariousmaterials,thecompanysettledonseaweed.Unlikecom,commonlyusedforcontainers,seaweeddoesnotrequirewater,fertilizers,orlargeamountsofspace.AccordingtoEvoware,asmuchas40tonsofseaweedcanbegrowninanareathesizeofabaseballfield.SinceIndonesianfarmersharvestmoreseaweedthantheycansell,it'seasytofindthematerial.Theseaweedpackagingissafetoconsumeandcanentirelydissolve（溶解）inhotwater.Whiletheeatablewrappers（包装纸）maynothaveanytaste,DubbedElioJello,thesingle-usecupsinventedbyEvoware,areavailableinfourtastes-orange,lychee,peppermint,andgreentea.Thebestpart?Youcanorderthepowderandmakethemathome!Thoughcurrently（目刖）theycannotstandhotliquids,Evowareisworkingonmakingheat-resistant（而j热的）cupsaswell.Whiletheseaweedproductsseemlikeaperfectreplacement,it'sahard-sellinIndonesia.AccordingtoChristian,"Theawarenessandsenseofurgencytominimizetheuseofsingle-useplasticisstillverylow.Thismakesourbioplasticseemunnecessary."Alsoafactoristhecost,whichishigherthanusingplastic.However,Evowarebelievestheycanreducethepriceoncethecompanymovestomassproduction.Hopefully,Evowarewillsucceedinconvincingpeopleworldwidethatswitchingtotheirproductswillgoalongwayinprotectingourbeautifulplanet.Plasticcontainers.Heat-resistantcups.Eatablepackaging.WhatcanweinferfromChristian'swordsinthelastparagraph?Thepriceofplasticswillgodown.Indonesianscarelittleabouttheplanet.Ittakesmuchefforttopromotethenewproduct.Theseaweedproductsneedmuchimprovement.Bytheendofthecentury,ifnotsooner,theworld'soceanswillbebluerandgreenerthankstoawarmingclimate,accordingtoanewstudy.Attheheartofthephenomenonlietinymarinemicroorganisms（海洋微生物）calledphytoplankton.Becauseofthewaylightreflectsofftheorganisms,thesephytoplanktoncreatecolourfulpatternsattheoceansurface.Oceancolourvariesfromgreentoblue,dependingonthetypeandconcentrationofphytoplankton.Climatechangewillfuelthegrowthofphytoplanktoninsomeareas,whilereducingitinotherspots,leadingtochangesintheocean'sappearance.Phytoplanktonliveattheoceansurface,wheretheypullcarbondioxide（二氧化碳）intotheoceanwhilegivingoffoxygen.Whentheseorganismsdie,theyburycarboninthedeepocean,animportantprocessthathelpstoregulatetheglobalclimate.Butphytoplanktonarevulnerabletotheocean'swarmingtrend.Warmingchangeskeycharacteristicsoftheoceanandcanaffectphytoplanktongrowth,sincetheyneednotonlysunlightandcarbondioxidetogrow,butalsonutrients.StephanieDutkiewicz,ascientistinMIT'sCenterfbrGlobalChangeScience,builtaclimatemodelthatprojectschangestotheoceansthroughoutthecentury.Inaworldthatwarmsupby3℃,itfoundthatmultiplechangestothecolouroftheoceanswouldoccur.Themodelprojectsthatcurrentlyblueareaswithlittlephytoplanktoncouldbecomeevenbluer.Butinsomewaters,suchasthoseoftheArctic,awarmingwillmakeconditionsriperforphytoplankton,andtheseareaswillturngreener."Notonlyarethequantitiesofphytoplanktonintheoceanchanging."shesaid,"butthetypeofphytoplanktonischanging.Whatar