高考英語高中英語閱讀理解(科普環(huán)保)解題技巧及經(jīng)典題型及練習題(含答案)一、高中英語閱讀理解科普環(huán)保類1．犇犇閱讀短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。

Anewstudyfrombrainresearchershelpsexplainhowthehumanbrainevolvedorchangedovertime,topermitpeopletospeakandwrite.

MichaelUllman,theleadresearcher,aprofessoratGeorgetownUniversityMedicalSchoolinWashington,D.C,hasbeenstudyinglanguagelearningformorethan20years.

Ullmansayshisresearchshowsthatthehumanbraindoesnothaveaspecialareaorsystemformakinglanguage.Overtimewehavesimplyreusedorco-opted(指派)partsofourbrainforlanguage.Andthoseparts,hesays,areancient-oldereventhanhumansthemselves.

"Thisstudyexaminesthetheoreticalframework(準則)thatlanguageislearned,storedand'processedintwoancientlearningandmemorysystemsinthebrain."

Ullman,Hamrickandtherestoftheteamlookedatdatafrom16otherstudiesonlanguage.Theyfoundthatpeoplelearnlanguageusingtwomemorysystems:declarativeandprocedural.Memorizingvocabulary,forexample,isadeclarativememoryprocess.Butlearninggrammaris,mostly,aproceduralmemoryprocess.

"Declarativememory,inhumansatleast,iswhatwethinkofaslearningmemory',suchas,'Oh,rememberwhatyousaidlastnight'orthingslikethat.Andproceduralmotormemoryiswhatweoftencallmotormemory'suchashowyoulearntorideabicycle."Or,Ullmanadds,"Theseproceduralmemoryskillsbecomesodeeplyleanedthatwearenolongerawarethatwearedoingthem."

However,Ullmanexplainsthatthetwolong-termmemorysystemscansharetasks.And,headds,theadultbrainusesthesystemstolearnlanguageabitdifferentlythanachild'sbrain.

"Adultlanguagelearnersofasecondlanguagemayusetheirdeclarativememoryforusinggrammarpatterns.Theythinkaboutitpurposefully.Forachild,thegrammarmaycomemorenaturally.Theydon'thavetothinkaboutthegrammarrulesbeforespeaking."

Inadditiontolanguagelearners,Ullman'sstudycouldhelppeoplewhohaveabraininjurythataffectsspeakingandwriting.Thisknowledgecanalsohelpthosewhohavelearningdisabilitiessuchasdyslexia(閱讀障礙).Peoplewithdyslexiahavedifficultyrecognizingwordsandsymbolsaccurately.（1）HowdidUllmanstudyhuman'smemorysystems?A.

Byexaminingthebrainwithhisteam.B.

Bystudyinglanguagelearningoveryears.C.

Bycomparingdifferentlanguagesyearafteryear.D.

Byreferringtodatafromotherstudiesonlanguage.（2）Whichofthefollowingisanexampleof"motormemory"?A.

Learningtomakeamodelplane.B.

RememberingthegrammarpatternsC.

Repeatingwhatyouheard.D.

Memorizingwhatyouread.（3）Whatdoestheunderlinedword"it"referto?A.

Declarativememory.B.

Anadultlanguagelearner.C.

Usinggrammarpatterns.D.

Asecondlanguage.（4）What'sthemainideaofthetext?A.

Ullmanhasadvancedourlanguageunderstanding.B.

Anewresearchhelpspeoplelearnanewlanguage.C.

Learningmemoryismoreactivethanmotormemory.D.

Humanbeingslearnlanguageinprehumanareaofbrain.【答案】（1）D（2）A（3）C（4）D【解析】【分析】本文是一篇說明文，講述MichaelUllman和他的團隊的研究稱人類大腦前區(qū)的為語言學習區(qū)，由此解開了人類大腦進化過程之謎。在最古老的大腦學習記憶區(qū)域，陳述性記憶和運動記憶分工合作，來完成語言學習。（1）考查細節(jié)理解。根據(jù)第五段中的“Ullman,Hamrickandtherestoftheteamlookedatdatafrom16otherstudiesonlanguage.”可知，該團隊通過研究其他語言學習的成果，得出的結(jié)論，故選D。（2）考查推理判斷。根據(jù)第六段中的"Andproceduralmotormemoryiswhatweoftencallmotormemory'suchashowyoulearntorideabicycle."可知，程序性運動記憶就是我們常說的運動記憶，比如學習騎自行車等技能，故選A。（3）考查詞義猜測。根據(jù)倒數(shù)第二段中的"Adultlanguagelearnersofasecondlanguagemayusetheirdeclarativememoryforusinggrammarpatterns."可知，成年語言學習者在學習第二語言時，是刻意地在使用語法句式。所以it是指代usinggrammarpatterns，故選C。（4）考查主旨大意。根據(jù)第三段中的“Ullmansayshisresearchshowsthatthehumanbraindoesnothaveaspecialareaorsystemformakinglanguage.Overtimewehavesimplyreusedorco-opted(指派)partsofourbrainforlanguage.”以及全文可知，人類的語言學習是由大腦前區(qū)完成的，該區(qū)域早于人類本身。所以選D?！军c評】本題考點涉及細節(jié)理解，詞義猜測，推理判斷和主旨大意四個題型的考查，是一篇科研類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。2．犇犇閱讀下列短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。

Whenathletesatthe2020TokyoOlympicscollecttheirmedals,they'llnotonlybewearingsomethingthatcelebratestheirsportingperformance,butsomethingthatsymbolizeslastingness.Forboththe2020OlympicsandParalympics,organizersaimtomakeallofthegold,silver,andbronzemedalsoutofusedelectronics.Thisstrongmessageabouthowtomakeuseofe-wastehasgottenalotofJapaninvolved.

StartinginApril2017,theJapaneseOlympicCommitteebegancollectingoldlaptops,digitalcameras,smartphones,andotherabandonedelectronics.Theinitiative(倡議)hasachievedgreatsuccess.Already,thequantityneededforbronzemedalshasbeenmet,andthey'reinthehomestretchforsilverandgoldmedals,meaningthecollectionprocesscanpackupattheendofMarch.

Whenlookingjustatthenumberofcellphonescollected,theamountofwasteisshocking.Inaperiodofabout18months,alittleover5millionsmartphoneswerecollectedthankstocooperationwithNTTDOCOMO.Japan'slargestmobilephoneoperatorallowedthepublictoturninphonesattheirshops,whichcountedalotintheproject'ssuccess.

Afterbeingtakenapartandsorted,thesmallelectronicsunderwentasmeltingprocesstoextract(提煉)allthegold,silver,andbronzeelements.Thankstothisinitiative,theworldwidestrugglewithe-wastewillhaveaglobalplatform.AccordingtoastudypublishedbytheUnitedNationsUniversity—44.7millionmetrictonsofe-wasteweremadein2016.Only20%ofthatwasactuallyrecycled.Unfortunately,thisfigureissettorisesignificantlyinthecomingyears,movingto52.2millionmetrictonsby2021.SowhiletheTokyoOlympicsinitiativemightbejustadropinthebucket,it'sagoodstartinshowingwhatthepubliccandoifthey'remademoreawareoftheissue.（1）WhatcanbelearntaboutTokyoOlympicsinitiativefromthepassage?A.

E-wasteintheworldisincreasingsignificantly.B.

Itiseasytogetelementsneededfromtheusedelectronics.C.

Onlyproducersofelectronicsparticipatedintheproject.D.

NTTDOCOMOcontributedtothesuccessoftheproject.（2）Whichcanbestreplacetheunderlinedword"homestretch"inParagraph2?A.

startingperiod

B.

collectioneffort

C.

finalstage

D.

hardsearch（3）WhatinfluencedoestheTokyoOlympicsinitiativehave?A.

Itoffersaneffectivemethodtosolvetheproblemofe-waste.B.

Itshowsthepowerofadvancedtechnologyindailylife.C.

Itsavestheexpensespentinmakingallthemedals.D.

Itencouragesthepublic'sinvolvementindealingwithe-waste.（4）Whatisthewriter'sattitudetotheTokyoOlympicsinitiative?A.

Positive

B.

Negative

C.

Ambiguous

D.

Indifferent【答案】（1）D（2）C（3）D（4）A【解析】【分析】本文是一篇說明文，介紹了日本將回收利用廢棄的電子產(chǎn)品中的金屬，用于制作2020年奧運會獎牌。（1）考查推理判斷。根據(jù)第三段中的"Inaperiodofabout18months,alittleover5millionsmartphoneswerecollectedthankstocooperationwithNTTDOCOMO."在大約18個月的時間里，由于與NTTDocomo的合作，收集了500多萬部智能手機，故選D。（2）考查詞義猜測。根據(jù)第二段中的"Already,thequantityneededforbronzemedalshasbeenmet,andthey'reinthehomestretchforsilverandgoldmedals,meaningthecollectionprocesscanpackupattheendofMarch."銅牌所需要的數(shù)量已經(jīng)達到了，并且到了最后關(guān)頭，也就是說，收集過程可以在3月底完成。inthehomestretch固定短語，“最后關(guān)頭”，故選C。（3）考查推理判斷。根據(jù)最后一段中的"SowhiletheTokyoOlympicsinitiativemightbejustadropinthebucket,it'sagoodstartinshowingwhatthepubliccandoifthey'remademoreawareoftheissue."所以盡管東京奧運會的提議只是杯水車薪，這是一個很好的開始，展示了如果公眾對這個問題有了更多的認識，他們能做些什么。故選D。（4）考查推理判斷。根據(jù)全文的描述，可知作者對于東京奧運倡議是持積極的態(tài)度，故選A?！军c評】本題考點涉及詞義猜測和推理判斷兩個題型的考查，是一篇科研類閱讀，考生需要根據(jù)上下文的邏輯關(guān)系，進行分析，推理，從而選出正確答案。3．犇犇閱讀下列短文，從每題所給的A、B、C和D四個選項中，選出最佳選項。

AfteramorninghikeintheSaneumHealingForest,46-year-oldfirefighterKangByoung-wookhasteamadefromthebarkofanelmtree,practicesyoga(瑜伽),andmakesapicturewithdriedflowers.Heisoneof40firefighterstakingpartinathree-dayprogram,theaimofwhichistooffer"foresthealing"(森林治愈);thefirefightersallhaveposttraumaticstressdisorder(創(chuàng)傷后應激障礙).

SaneumisoneofthreeofficialhealingforestsinSouthKorea.Soontherewillbe34more.SouthKoreans-manyofwhomsufferfromworkstress,digitaladdiction,andgreatacademicpressurehaveacceptedthemedicalizationofnaturewithgreatenthusiasm.

Thereisincreasingevidencethatbeingoutsideinapleasantnaturalenvironmentisgoodforus.Buthowmanyofusgettoenjoynatureregularly?Fewerandfewer,itseems.AccordingtoLisaNisbet,apsychologyprofessoratCanadasTrentUniversity,evidenceforthebenefitsofnatureispouringinatatimewhenwearemostdisconnectedfromit.

"Wedon'tthinkofbeingoutdoorsasawaytoincreasehappiness,"saysNisbet."Wethinkotherthingswill,likeshoppingorTV."ButSouthKoreaisstartingtochallengethisopinion.

SowhataresomeofthebenefitsofnaturethatNisbetrefersto?Beingsurroundedbynaturehasoneobviouseffect:Itcalmsusandreducesourstresslevels.Thishasbeenshowntolowerbloodpressureandheartrates.

AnotherexperimentconductedbypsychologistStephenKaplanfoundthatpeoplewhotooka50-minutewalkinaparkhadbetterattentionandshort-termmemorythanthosewhotookawalkalongacitystreet.

Perhapswhat'smoresurprisingisthatnaturemayalsomakeusmorecreative.DavidStrayer,apsychologistattheUniversityofUtah,showedasmuchwithagroupofparticipants,whoperformed50percentbetteroncreativeproblem-solvingtasksafterthreedaysofwildernessbackpacking.

Infact,wemayneverknowexactlywhatnaturedoestothebrain.Somethingmysteriouswillalwaysremain,andmaybethat'sasitshouldbe.（1）WhatisKangByoung-wookdoing?A.Gettinglostinnature.B.Buildinguphisstrength.C.Tryingtocontrolaforestfire.D.Helpingfirefightersunderstress.（2）WhatdoesLisaNisbetthinkofbeingoutdoors?A.Itisoverlookedbypeople.B.Ithasnothingtodowithhappiness.C.SouthKoreansshowgreatinterestinit.D.Weneedmoreevidenceforitsbenefits.（3）WhatbenefitofnaturedidStephenKaplanfind?A.Itaffectspeople'sfeelings.B.Itlowerstherisksofdiseases.C.Ithelpsimprovementalperformance.D.Itdoesmoregoodthanphysicalexercise.（4）Whatwouldbethebesttitleforthetext?A.YourlifeinforestsB.YourbrainonnatureC.ThefutureofforesthealingD.Thebenefitsofastress-freelife【答案】（1）A（2）A（3）C（4）B【解析】【分析】本文是一篇說明文，由韓國患創(chuàng)傷后應激障礙的消防員接受森林治愈談起，介紹了大自然對我們身心健康的益處。（1）考查細節(jié)理解。根據(jù)第一段中的“KangByoung-wookhasteamadefromthebarkofanelmtree,practicesyoga(瑜伽),andmakesapicturewithdriedflowers.”可知，KangByoung-wook正在接受森林治愈：品茶、做瑜伽、做手工。他完全沉浸在大自然之中。故選A。（2）考查推理判斷。根據(jù)第三段中的“Buthowmanyofusgettoenjoynatureregularly?Fewerandfewer和evidenceforthebenefitsofnatureispouringinatatimewhenwearemostdisconnectedfromit”以及第四段中LisaNisbet所說的話可知，他認為現(xiàn)代人忽視了大自然的重要性，戶外活動少了。故選A。（3）考查細節(jié)理解。根據(jù)倒數(shù)第三段中的“hadbetterattentionandshort-termmemory”可知，StephenKaplan的研究發(fā)現(xiàn)親近大自然可以提高注意力和短期記憶力，也就是說提高了大腦的工作效率。故選C。（4）考查主旨大意。本文主要介紹了森林治愈和大自然對于人類健康尤其是大腦工作效率和減緩壓力方面的益處，故B項作標題最符合文章的主旨。故選B?！军c評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇健康類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。4．犇犇閱讀理解TheAlexandertechnique

Untilearlierthisyear,Ididn'tknowanythingabouttheAlexandertechnique—andsawnoreasontothinkIshould.Oneday,thebackacheIregularlysufferedwasmorepainful.Iwasbroughtuptothinkthatthepreferredwayofdealingwithachesistodonothingandhopethey'llgoaway,butIeventuallywenttothedoctor.Afterexaminingme,hesaid,"Youactuallyhavebadposture(姿勢).GooffandlearntheAlexandertechnique."ThreemonthslaterIcouldwalkstraighterandsitbetter.

TheAlexandertechniqueisawayoflearninghowyoucangetridofharmfultensioninyourbody.Theteachingfocusesontheneck,headandback.Ittrainsyoutouseyourbodylessseverelyandcarryoutthemovementsthatwedoallthetimewithlesseffort.Thereislittleeffortinthelessonsthemselves,whichsetsaparttheAlexandertechniquefromyogaorpilates,whichareexercise-based.Atypicallessoninvolvesstandinginfrontofachairandlearningtositandstandwithminimumeffort.Youspendsometimelyingonabenchwithyourkneesbenttostraightenthespine(脊椎)andrelaxyourbodywhiletheteachermovesyourarmsandlegstotrainyoutomovethemcorrectly.

Thetechniquehelpstobreakthebadhabitsaccumulatedoveryears.Tryfoldingyourarmstheoppositewaytonormal.Thisisanexampleofahabitthebodyhasformedwhichcanbehardtobreak.Manyofuscarryourheadstoofarback.Theheadweighsfourtosixkilos,soanyinappropriateposturecancauseproblemsforthebody.Thetechniqueteachesyoutoletgoofthemusclesholdingtheheadback,allowingittogobacktoitsnaturalplaceonthetopofourspines.

SowhowasAlexanderandhowdidhecomeupwiththetechnique?FrederickAlexander,anAustralianactorbornin1869,foundinhisyouththathehadvocal(聲音的)problemsduringperformances.Heanalyzedhimselfandrealizedhisposturewasbad.Heworkedonimprovingit,withexcellentresults.HebroughthistechniquetoLondonandopenedateacher-trainingschool,whichisstillsuccessfultoday.

Soifyou'rewalkingalongtheroadonedaywithshouldersbentforward,feelingweigheddownbyyourtroubles,giveathoughttotheAlexandertechnique.Itwillhelpyouwalktallagain.（1）WhatdoestheauthorsuggestinParagraph1?A.

Shefeltnobetterafterthetreatment.B.

ShegotboredwiththeAlexandertechnique.C.

Shewasscepticalaboutthedoctor'smethod.D.

Shewasunwillingtoseektreatmentforherbackache.（2）WhatistheprincipleoftheAlexandertechnique?A.

Physicaltensionshouldn'tbecompletelyrelieved.B.

Thetechniqueshouldn'tbecombinedwithotherexercises.C.

Thepracticeofthetechniqueshouldn'tbeattemptedalone.D.

Familiarphysicalactionsshouldn'tbedonewithmucheffort.（3）WhatcanwelearnaboutFrederickAlexander?A.

Hemanagedtorecoverhisvocalpowers.B.

Hewaseagertomakeanameforhimself.C.

Hedevelopedaformofexerciseforactors.D.

Hehadtoleavehometodevelophistechnique.（4）Whatisthemainideaofthepassage?A.

Theoccurrenceofbackpainiswidespread.B.

Alexanderimprovedthetechniquetotreatbodypain.C.

TheAlexandertechniquehelpsovercomepostureproblems.D.

Peoplewithbackpainarevictimsofinappropriatepostures.【答案】（1）D（2）D（3）A（4）C【解析】【分析】本文是一篇說明文，介紹亞歷山大技巧的對于矯正身體的作用以及其發(fā)明者。（1）考查推理判斷。根據(jù)第一段中的“Iwasbroughtuptothinkthatthepreferredwayofdealingwithachesistodonothingandhopethey'llgoaway,butIeventuallywenttothedoctor.”可知，作者從小就被灌輸這樣的思維，處理疼痛的更好辦法就是不做任何事情，希望疼痛自行消失，但是卻最終不得不去看醫(yī)生，故可知，作者看醫(yī)生都是迫不得已，故選D。（2）考查推理判斷。根據(jù)第二段中的“Ittrainsyoutouseyourbodylessseverelyandcarryoutthemovementsthatwedoallthetimewithlesseffort.”可知，亞歷山大技巧讓你更合理使用身體，用最小的努力來做那些習慣性的動作，故可知，該技巧的原則就是用最小的力來做習慣性的動作，故選D。（3）考查推理判斷。根據(jù)倒數(shù)第二段中的“FrederickAlexander,anAustralianactorbornin1869,foundinhisyouththathehadvocal(聲音的)problemsduringperformances.Heanalyzedhimselfandrealizedhisposturewasbad.Heworkedonimprovingit,withexcellentresults.”可知，弗雷德里克·亞歷山大，一個出身于186年的澳大利亞演員，在年輕的時候聲音出了問題。他做了分析，意識到自己的姿勢不正確，因此致力于改善姿勢，結(jié)果很好，故可知，他通過矯正姿勢，解決了自己的聲音問題，故選A。（4）考查主旨大意。本文介紹亞歷山大技巧的對于矯正身體的作用以及其發(fā)明者，故可知在介紹亞歷山大技巧的作用，故選C?！军c評】本題考點涉及推理判斷和主旨大意兩個題型的考查，是一篇科普類閱讀，要求考生根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。5．犇犇Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.

Escapingpredators(食肉動物),digestionandotheranimalactivities—includingthoseofhumans—requireoxygen.Butthatessentialingredientisnolongersoeasyformarinelifetoobtain,severalnewstudiesreveal.

Inthepastdecadeoceanoxygenlevelshavetakenadive—analarmingtrendthatislinkedtoclimatechange,saysAndreasOschlies,anoceanographerattheHelmholtzCenterforOceanResearchinGermany,whoseteamtracksoceanoxygenlevelsworldwide."Weweresurprisedbytheintensityofthechangeswesaw,howrapidlyoxygenisgoingdownintheoceanandhowlargetheeffectsonmarineecosystemsare,"hesays.Itisnosurprisetoscientiststhatwarmingoceansarelosingoxygen,butthescaleofthedropcallsforurgentattention.Oxygenlevelsinsometropical(熱帶的)regionshavedroppedbyanastonishing40percentinthelast50years,somerecentstudiesreveal.Levelshavedroppedlesssignificantlyelsewhere,withanaveragelossof2percentglobally.

Awarmingoceanlosesoxygenfortworeasons:First,thewarmeraliquidbecomes,thelessgasitcanhold.Thatiswhycarbonateddrinksgoflatfasterwhenleftinthesun.Second,aspolarseaicemelts,itformsalayerofwaterabovecolder,moresaltyseawaters.Thisprocesscreatesasortoflidthatcankeepcurrentsfrommixingsurfacewaterdowntodeeperdepths.Andbecausealloxygenentersthesurface,lessmixingmeanslessofitatdepth.

Oceananimalslargeandsmall,however,respondtoevenslightchangesinoxygenbyseekingrefugeinhigheroxygenzonesorbyadjustingbehavior,Oschliesandothersinhisfieldhavefound.Theseadjustmentscanexposeanimalstonewpredatorsorforcethemintofood-scarceregions.Climatechangealreadyposesseriousproblemsformarinelife,suchasoceanacidification,butdeoxygenationisthemostpressingissuefacingseaanimalstoday,Oschliessays.Afterall,hesays,"theyallhavetobreathe."

Asidefromfoodwebproblems,animalsfacevariousotherphysiologicalchallengesastheirbodiesadjusttoloweroxygenlevels.Chineseshrimp(蝦)movetheirtailslessvigorouslytopreserveenergyinloweroxygenenvironments.Somecreatures,suchasjellyfishes,aremoretolerantoflowoxygenthanothersare.Butallanimalswillfeeltheimpactofdeoxygenationbecausetheyallhaveevolvedtheiroxygencapacityforareason,saysOschlies."Anydropinoxygenisgoingtodamagesurvivabilityandperformance,"hesays.（1）Accordingtothefirsttwoparagraphs,whatworriesscientiststhemost?A.

Theworseningdeoxygenationinthewarmingocean.B.

Thesurvivalofpredatorsandvariousmarineanimals.C.

Thealarminglychangeableoxygenlevelsintheocean.D.

Thelackofattentiontothewarmingoftropicaloceans.（2）Whichofthefollowingisareasonfortheoxygenlossintheocean?A.

Polaricemeltingconsumesmuchoxygenintheocean.B.

Globalwarmingreducestheamountofoxygenintheair.C.

Thesurfacepolaricewaterpreventsoxygengoingdown.D.

Saltywaterholdslessgasintheincreasinglywarmerocean.（3）Whatcanbeinferredfromthepassage?A.

Oceandeoxygenationchangessomeanimals'naturalterritories.B.

Oceanacidificationismoreseriousaproblemthandeoxygenation.C.

Notalloceananimalsarebotheredbythedecreasingoxygenlevels.D.

Someanimalsreducetheirmovementsinordertoabsorbmoreoxygen.（4）Whichofthefollowingisthebesttitleofthepassage?A.

TheOxygenLevelsofMarineLife

B.

OceanWarmingAffectsFoodWebC.

TheSurvivabilityofOceanAnimals

D.

TheOceanIsRunningOutofBreath【答案】（1）A（2）C（3）A（4）D【解析】【分析】本文是一篇說明文，介紹了海洋氧含量下降是一個與氣候變化有關(guān)的令人擔憂的趨勢。同時介紹了海洋氧含量下降的原因以及對海洋生物的影響和對其生存的威脅。（1）考查細節(jié)理解。根據(jù)第二段中的"Itisnosurprisetoscientiststhatwarmingoceansarelosingoxygen,butthescaleofthedropcallsforurgentattention.Oxygenlevelsinsometropical(熱帶的)regionshavedroppedbyanastonishing40percentinthelast50years,somerecentstudiesreveal.Levelshavedroppedlesssignificantlyelsewhere,withanaveragelossof2percentglobally."可知，對于科學家來說，變暖的海洋正在失去氧氣并不奇怪，但這種下降的規(guī)模需要緊急關(guān)注。一些最近的研究表明，在過去的50年里，一些熱帶地區(qū)的氧氣含量下降了驚人的40%。其他地區(qū)的降幅較小，全球平均降幅為2%。所以根據(jù)前兩段，科學家最擔心的是變暖的海洋中日益惡化的脫氧現(xiàn)象。故選A。（2）考查細節(jié)理解。根據(jù)第三段中的"aspolarseaicemelts,itformsalayerofwaterabovecolder,moresaltyseawaters.Thisprocesscreatesasortoflidthatcankeepcurrentsfrommixingsurfacewaterdowntodeeperdepths.Andbecausealloxygenentersthesurface,lessmixingmeanslessofitatdepth."可知，當極地海冰融化時，它會在更冷、更咸的海水上形成一層水。這個過程會形成一種冰蓋，它可以防止水流將地表水混合到海洋更深的深度。因為所有的氧氣都進入了表面，所以較少的與海洋水的混合意味著更深的海洋含氧量更少。所以表面的極地冰水阻止氧氣下沉是海洋缺氧的原因之一。故選C。（3）考查推理判斷。根據(jù)倒數(shù)第二段中的"Oceananimalslargeandsmall,however,respondtoevenslightchangesinoxygenbyseekingrefugeinhigheroxygenzonesorbyadjustingbehavior,Oschliesandothersinhisfieldhavefound.Theseadjustmentscanexposeanimalstonewpredatorsorforcethemintofood-scarceregions."可知，然而，Oschlies和他所在領(lǐng)域的其他人發(fā)現(xiàn)，無論大小，海洋動物對氧氣的微小變化都有反應，它們在較高的含氧區(qū)尋求庇護，或是調(diào)整行為。這些調(diào)整可能使動物暴露在新的掠食者面前，或迫使它們進入食物匱乏的地區(qū)。所以海洋中氧含量減少迫使動物離開自己的棲息地，去氧氣含量較高的地區(qū)尋求庇護。故判斷出海洋脫氧改變了一些動物的自然領(lǐng)地。故選A。（4）考查主旨大意。通讀全文可知，短文說明了海洋氧含量下降是一個與氣候變化有關(guān)的令人擔憂的趨勢，海洋氧含量下降的原因以及對海洋生物的影響和對其生存的威脅。所以短文主要是圍繞著海洋氧含量下降而展開的。故短文的最佳標題為"海洋快喘不過氣來了"符合題意。故選D。【點評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇環(huán)保類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。6．Directions:Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.

AtinycluefoundinancientdepositshasunlockedbigsecretsaboutGreenland'spastandfutureclimate.JustbeyondthenorthwestedgeofthevastGreenlandIceSheet,researchershavediscoveredlakemudthathavesurvivedthelasticeage.Themud,andremainsofcommonfliesinit,recordtwointerglacialperiods(間冰期)innorthwestGreenland.

Althoughresearchershavelongknownthesetwoperiods—theearlyHoloceneandLastInterglacial—experiencedwarmingintheArctic,themixofflyspeciesshowsthatGreenlandwasevenwarmerthanpreviouslythought."Asfarasweknow,ithasneverbeenfoundinGreenland.Wethinkthisisthefirsttimeanyonehasreporteditinancientdepositsormodernlakesthere,"Axfordsaid."Wewerereallysurprisedtoseehowfarnorthitmigrated(遷徙)."

ThisnewinformationcouldhelpresearchersbettermeasureGreenland'ssensitivitytowarming,bytestingandimprovingmodelsofclimateandicesheetbehaviour.ThosemodelscouldthenimprovepredictionsofhowGreenland'sicesheetmightrespondtoman-madeglobalwarming.Afterall,Greenlandcovers80percentoftheArcticcountryandholdsenoughicetoequal20feetofglobalsealevel."NorthwestGreenlandmightfeelreallyremote,butwhathappenstothaticesheetisgoingtomattertoeveryoneineverycoastalcityaroundtheworld,"saidYarrowAxford,anassociateprofessorintheteam."OneofthebiguncertaintiesinclimatescienceishowfasttheEarthchangeswhenitgetswarmer.GeologygivesusanopportunitytoseewhathappenedwhentheEarthwaswarmerthantoday,"saidAxford.

Peoplemightbesurprisedtoseehowtoday'sGreenlandlookedduringthelasttwointerglacialperiods.DuringtheLastInterglacial,globalsealevelsincreasedby15to30feet,largelyduetothinningofGreenlandandAntarctica'sicesheets.However,nowresearchersbelievenorthernGreenland'sicesheetexperiencedstrongerwarmingthanpreviouslythought,whichcouldmeanthatGreenlandismoreresponsibleforthatsea-levelrise.

Findinglakedepositsolderthanabout10,000years,however,hasbeenhistoricallyverydifficultinGreenland.Tomeasuretheseancienttemperatures,researcherslooktoicecores(冰核)andlakedeposits.Sinceiceandlakedepositsformbyagradualbuilduponannuallayersofsnowormud,thesecorescontainhistoryofthepast.Bylookingthroughthelayers,researcherscanobtainclimatecluesfromcenturiesago.（1）Whyaretheremainsoffliesmentionedinthefirsttwoparagraphs?A.TheyserveasevidencethatthereisstilllifeintheNorthwestGreenland.B.TheywereoneofthemanyancientlivesthatwereleftintheGreenlandmud.C.TheyareindicatorsthatGreenlandwasmuchwarmerthanpreviouslythought.D.TheyhelptheresearchersrealizethattherewasonceawarmperiodintheArctic.（2）ThenewinformationaboutGreenlandisimportantbecause______________.A.researchershavenoideahowtomeasureGreenland'swarmingspeedB.itcanhelpresearchersbetterpredictGreenland'sresponsetowarmingC.peopleshouldbemoresensitivetothechangesintheiceinGreenlandD.itisuncertainhowfasttheEarthchangeswithman-madeglobalwarming（3）Whichofthefollowingcanbeinferredfromthepassage?A.Itiseasierfortoday'sscientiststofindancientlakedeposits.B.PeoplearesurprisedatthelandscapefeatureofGreenlandtoday.C.Researchersmeasurethechangingtemperaturesbydirectlyexaminingmud.D.Greenlandholdsenoughicethatmightonedaythreatenlifeincoastalcities.（4）Whichdoyouthinkisthebesttitleofthepassage?A.GreenlandUsedtoBeMuchGreenerB.EarthOnceExperiencedWarmPeriodsC.CoastalCitiesWarnedofComingDisastersD.NorthwestGreenland,APerfectDestination【答案】（1）C（2）B（3）D（4）A【解析】【分析】本文是一篇說明文，介紹了在古代沉積物中發(fā)現(xiàn)的一條微小線索揭開了格陵蘭島過去和未來氣候的大秘密。就在廣闊的格陵蘭冰原的西北邊緣，研究人員發(fā)現(xiàn)了在最后一個冰河時代幸存下來的湖泥?，F(xiàn)在研究人員認為，格陵蘭北部的冰蓋經(jīng)歷了比之前認為的更強烈的變暖。（1）考查推理判斷。根據(jù)第一段中的“Themud,andremainsofcommonfliesinit,recordtwointerglacialperiods（間冰期）innorthwestGreenland.”在格陵蘭島西北部，泥漿和常見蒼蠅的殘骸記錄了兩次間冰期；以及第二段中的“Althoughresearchershavelongknownthesetwoperiods—theearlyHoloceneandLastInterglacial—experiencedwarmingintheArctic,themixofflyspeciesshowsthatGreenlandwasevenwarmerthanpreviouslythought.”盡管研究人員很早就知道這兩個時期——全新世早期和最后一次間冰期——在北極經(jīng)歷了變暖，但混合的蠅類表明格陵蘭島甚至比之前認為的還要熱。可知，在前兩段中提到蒼蠅的殘骸是為了證明格陵蘭島的溫度比之前認為的要高得多。故選C。（2）考查細節(jié)理解。根據(jù)第三段中的“ThisnewinformationcouldhelpresearchersbettermeasureGreenland'ssensitivitytowarming,bytestingandimprovingmodelsofclimateandicesheetbehaviour.”可知，這些新信息可以幫助研究人員更好地測量格陵蘭島對氣候變暖的敏感性。故選B。（3）考查細節(jié)理解。根據(jù)第三段中的“Afterall,Greenlandcovers80percentoftheArcticcountryandholdsenoughicetoequal20feetofglobalsealevel.‘NorthwestGreenlandmightfeelreallyremote,butwhathappenstothaticesheetisgoingtomattertoeveryoneineverycoastalcityaroundtheworld,’”

可知，格陵蘭島覆蓋了這個北極國家的80%，擁有相當于全球海平面20英尺的冰?！案窳晏m西北部可能真的感覺很遙遠，但冰蓋的變化將關(guān)系到世界上每個沿海城市的每個人?！惫蔬xD。（4）考查主旨大意。本文通過最新的發(fā)現(xiàn)——最后一個冰河時代幸存下來的湖泥及湖泥中的蒼蠅殘骸及其相關(guān)研究說明格陵蘭島之前可能更暖和。因此，本文的最佳標題應為“格陵蘭島曾經(jīng)更加綠色”。故選A?！军c評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科研類閱讀，考生需要準確捕捉細節(jié)信息，并根據(jù)上下文進行邏輯推理，概括歸納，從而選出正確答案。7．閱讀理解

IfAmericanwaterwayshadeverbeenvotedontheyearbook,theBuffal