【英语】高中英语阅读理解(科普环保)(一)解题方法和技巧及练习题

【英语】高中英语阅读理解(科普环保)(一)解题方法和技巧及练习题一、高中英语阅读理解科普环保类1．犇犇阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

Ateamofinternationalscientistsisduetosetofffortheworld'sbiggesticeberginamissionaimingtoanswerfundamentalquestionsabouttheimpactofclimatechangeinthepolarregions.Thescientists,ledbytheBritishAntarcticSurvey(BAS),aretryingtoreachanewlyrevealedecosystemthathadbeenhiddenfor120,000yearsbelowtheLarsenCiceshelf.

Lastyear,partoftheLarsenCiceshelfcalved(崩解)away,formingahugeiceberg-A68—whichisfourtimesbiggerthanLondon,andrevealinglifebeneathforthefirsttime.Nowscientistssayitisaraceagainsttimetoexplorethesenewecosystemsbeforetheyaretransformedtothelight.MarinebiologistDrKatrinLinsefromtheBASisleadingthemission.

"ThecalvingofA68providesuswithauniqueopportunitytostudymarinelifeasitrespondstoahugeenvironmentchange,"shesaid."Itisimportantthatwegettherequicklybeforetheunderseaenvironmentchangesassunlightentersthewater."

ProfessorDavidVaughan,sciencedirectorattheBAs,said,"Weneedtobebold(大胆的)onthisone.LarsenCisalongwaysouthandthere'slotsofseaiceinthearea,butthisisimportantscience,sowewilltryourbesttogettheteamwheretheyneedtobe.HesaidclimatechangehadalreadyaffectedtheseaaroundAntarcticaandiswarmingsomecoastalwaters."Futurewarmingmaymakesomehabitatswarm.Wherethesehabitatssupportuniquespeciesthatareadaptedtolovethecoldandnotthewarm,thosespeciesaregoingtoeithermoveordie."

ThereisgrowingconcernaboutthepossibleimpactofclimatechangeintheAntarctic.Earlierthismonth,areportrevealedthatmeltingicesheetsinGreenlandandAntarcticaarespeedingupthealreadyfastpaceofthesealevelrise.Theresearch,publishedbytheNationalAcademiesofScience,EngineeringandMedicine,said,"Atthecurrentrate,theworld'soceanwillbe,onaverage,atleast60cmhigherbytheendofthecentury."However,itfoundthattheprocessisaccelerating,andmorethanthreequartersoftheaccelerationsince1993isduetomeltingicesheetsinGreenlandandAntarctica,thestudyshows.（1）Whyarethescientistseagertogototheiceberg?A.

Tostudyhowtheicebergwasformed.B.

Tostudyanewlydiscoveredecosystem.C.

Toexploreanewwaytopreventclimatechange.D.

ToexplorethegeographyoftheLarsenCiceshelf.（2）Whatdotheunderlinedwords"thisone"inthefourthparagraphreferto?A.

TheLarsenCiceshelf.B.

ClimatechangeinAntarctica.C.

TheA68icebergwiththeecosystembeneathit.D.

TheconditionofanimalspeciesinAntarctica.（3）WhatcanwelearnabouttheA68icebergfromthetext?A.

ItisasbigasLondon.B.

ItispartofaniceshelfintheArctic.C.

Itwilldisappearinaveryshorttime.D.

IthasuncoveredanunknownecosysteminAntarctica.（4）Whatcanweinferfromthelastparagraph?A.

ThereisnoneedtoworryaboutclimatechangeinAntarctica.B.

TheicesheetsinGreenlandandAntarcticaaremeltingatasteadyrate.C.

Manycreatureslivingindeepwaterwilldieoutduetoclimatechange.D.

By2100,thesealevelwillhaverisentoamuchhigherlevelthannow.【答案】（1）B（2）C（3）D（4）D【解析】【分析】本文是一篇说明文，南极地区的拉森C冰架崩解形成了一座巨大的冰山A68iceberg。冰山下面显现的新的海洋生态系统为科学家提供了研究未知的海洋生物的机会。（1）考查细节理解。根据第二段中的“Nowscientistssayitisaraceagainsttimetoexplorethesenewecosystemsbeforetheyaretransformedtothelight.”可知，科学家着急赶去世界最大的冰山是为了在其受到光照影响之前研究这座冰山下面的海洋生态系统。故选B。（2）考查词义猜测。根据第三段中的“ThecalvingofA68providesuswithauniqueopportunitytostudymarinelife...”可知A68冰山的形成为科学家提供了研究海洋生物的独一无二的机会，所以ProfessorDavidVaughan认为科学家要果敢地抓住这次机会，故thisone指的是A68冰山和它下面的生态系统。故选C。（3）考查细节理解。根据第一段中的“toreachanewlyrevealedecosystemthathadbeenhiddenfor120,000yearsbelowtheLarsenCiceshelf.”到达一个新发现的在拉森冰架下面隐藏了12万年的的生态系统，可知选D。（4）考查推理判断。根据最后一段中的“…Atthecurrentrate,theworld'soceanswillbe,onaverage,atleast60cmhigherbytheendofthecentury.”按目前的速度，世界的海洋到本世纪末平均至少升高60厘米，选D。【点评】本题考点涉及细节理解，词义猜测和推理判断三个题型的考查，是一篇环境类阅读，考生需要准确掌握细节信息，同时根据上下文的逻辑关系，进行分析，推理，从而选出正确答案。2．犇犇Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.

Whilefakingandfiercelooksareamonganimalsgreatdefenses,manyspeciesknowthateveryonerunsfromabigstink(臭气)too.

Vulture(秃鸳)

Vultures,arestreetsweepersthatfeastontherottingfleshofdeadanimals,whichbenefitsusbyriddingourhighwaysandlandscapesofanimalbodiesandthebacteriatheymightcarry.Whenvulturesfeelthreatenedtheyvomit,andthesmellofvomited-ondeadbodiesputsofmostpredators.Throwingupallowsthevulturetoflyawaymorequickly-andthevomitcanhurttheaggressor'seyesandface.

Opossum(负鼠)

Insomewaysopossumshaveiteasy.Inordertobecome"dead",theydon'thavetofaxanyoneadeathcertificate.Theyjustlietherewiththeirtongueshangingoutwiththesmellofdeadflesh,sometimesforhours,effectivelyconvincingpotentialpredatorstheycanfindamuchfreshermealelsewhere.Eveniftheykeepgettingattacked,theywon'tmoveanymorethanahumanstatueuntilthethreathaspassed.

Hoatzin(磨雉)

Holdyournoseandmeetthehoatzin,abirdofdistinctions,nottheleastofwhichisthatitsmellslikefreshcowshit.Theanimalmostlyeatsleavesandit'stheonlybirdknowntodigestbyfermentation,likeacow.Thisprocessiswhatcausesitssmellandhasearneditthenicknamethe"stinkbird

Millipedes(千足虫)

Millipedesaretricky.Forstarterstheylookwormy.Theirnameisdeceptive,too:Theirlegsnumberabout750.Theirmajordefenseistocurlupintoaball.They,though,alsoreleaseaharmeyes,andleaveahorriblesmellontheirattackers.

SeaHare(海兔)

Thegracefulseahareisplainintasteinthefirstplace,soit'snotthemostpopulardishintheseafoodchain.Nonethelessthistypeofseacreaturehasaprettycreativesmell-relateddefensethatisalmosttheoppositeofitssmellycompanionsonthislist.Theseaharegivesoutaslimy,purpleink,thesubstancewhichmakesfoodlesspalatabletopredators.

Researchersusinglobsters(2-f)asmodelpredatorsfoundthattheseablocksthelobstersreceptivemechanism.Inotherwords,theseaharegivesitsattackertheequivalentofastuffynosesotheydon'tknowhowappealingitis.（1）Theseaharedefendsitselffrompredatorsby________.A.

becomingplainintasteatthediscoveryofapredatorB.

givingoutpurpleinktomakeitselfinvisibletopredatorsC.

releasingsubstancetomakepredatorsunabletosmellitD.

givingoffsmellygastotrytodrivepredatorsaway（2）WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.

Thevulturecarriesbacteriasothatpredatorsdarenotgetclosetoit.B.

Theopossumfakesitsdeathtoavoidbeingtargetedbypredators.C.

Thehoatzineatscowshitsothatitisnick-namedas"stinkbird".D.

Thegasreleasedbymillipedewasbasicallyharmless.（3）Thespeciesthatenjoysmorethanonedefensemechanismis________.A.

vulture

B.

opossum

C.

millipede

D.

seahare【答案】（1）C（2）B（3）C【解析】【分析】本文是一篇说明文，介绍了一些野生动物是如何进行自身防御的。（1）考查细节理解。根据

SeaHare(海兔)部分中的“Theseaharegivesoutaslimy,purpleink,thesubstancewhichmakesfoodlesspalatabletopredators.”可知，海兔身上散发出黏糊糊的紫色墨水，这种物质使得捕食者对食物不那么感兴趣，从而保护自己免受捕食者的伤害。故选C。（2）考查细节理解。根据

Opossum(负鼠)部分中的“Inordertobecome‘dead’,theydon'thavetofaxanyoneadeathcertificate.Theyjustlietherewiththeirtongueshangingoutwiththesmellofdeadflesh,sometimesforhours,effectivelyconvincingpotentialpredatorstheycanfindamuchfreshermealelsewhere.”可知，负鼠假装死亡，让捕食者在其他地方找到更新鲜的食物，以避免成为捕食者的目标。故选B。（3）考查推理判断。根据Millipedes(千足虫)部分中的“Theirmajordefenseistocurlupintoaball.They,though,alsoreleaseaharmeyes,andleaveahorriblesmellontheirattackers.”可知，千足虫主要防守是蜷成一团。然而，它们也会释放出有害的

眼睛，并在攻击者身上留下可怕的气味。从而可以推断出，千足虫是拥有多种防御机制的物种。故选C。【点评】本题考点涉及细节理解和推理判断两个题型的考查，是一篇科普类阅读，考生需要准确捕捉细节信息，并根据上下文进行逻辑推理，从而选出正确答案。3．犇犇阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

AfteramorninghikeintheSaneumHealingForest,46-year-oldfirefighterKangByoung-wookhasteamadefromthebarkofanelmtree,practicesyoga(瑜伽),andmakesapicturewithdriedflowers.Heisoneof40firefighterstakingpartinathree-dayprogram,theaimofwhichistooffer"foresthealing"(森林治愈);thefirefightersallhaveposttraumaticstressdisorder(创伤后应激障碍).

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】本文是一篇说明文，由韩国患创伤后应激障碍的消防员接受森林治愈谈起，介绍了大自然对我们身心健康的益处。（1）考查细节理解。根据第一段中的“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。故选A。（2）考查推理判断。根据第三段中的“Buthowmanyofusgettoenjoynatureregularly?Fewerandfewer和evidenceforthebenefitsofnatureispouringinatatimewhenwearemostdisconnectedfromit”以及第四段中LisaNisbet所说的话可知，他认为现代人忽视了大自然的重要性，户外活动少了。故选A。（3）考查细节理解。根据倒数第三段中的“hadbetterattentionandshort-termmemory”可知，StephenKaplan的研究发现亲近大自然可以提高注意力和短期记忆力，也就是说提高了大脑的工作效率。故选C。（4）考查主旨大意。本文主要介绍了森林治愈和大自然对于人类健康尤其是大脑工作效率和减缓压力方面的益处，故B项作标题最符合文章的主旨。故选B。【点评】本题考点涉及细节理解，推理判断和主旨大意三个题型的考查，是一篇健康类阅读，要求考生在捕捉细节信息的基础上，进一步根据上下文的逻辑关系，进行分析，推理，概括和归纳，从而选出正确答案。4．犇犇阅读理解

Accordingtoarecentstudy,anewgeneticallymodifiedricecanpreventinfectionsofHIV,thevirusresponsibleforthediseaseAIDS.

Thestudyreportsthenewly-developedriceproducesproteinsthatattachdirectlytotheHIVvirus.Thisprocesspreventsthevirusfrommixingwithhumancells.Thescientistssayitcanremovetheeffectofthevirusandblockitsspreading.

TheJointUnitedNationsProgramonHIV/AIDSreportsthatworldwide,nearly37millionpeoplewerelivingwithHIVin2017.Theorganizationsaysthelargestnumberofthoseareindevelopingcountries.Nearlytwo-thirdsofHIVcasesareinAfrica.NowthereisnocureforHIV/AIDSthoughtherehavebeendevelopmentsinoraldrugtreatmentstoslowtheprogressionofthedisease.

Thenewstudypredictstherice-basedmethodwillleadtolong-termuseoftheanti-HIVtreatmentacrossthedevelopingworld.Researcherssaidthe"groundbreaking"discoveryis"realisticallytheonlyway"thatanti-HIVcombinationtreatmentscanbeproducedatacostlowenoughforthedevelopingworld.

Theysaytheeasiestandmostcost-effectivewaytousethericewillbetomakeitintoacreamtobeputontheskin.TheHIV-fightingproteinscanthenenterthebodythroughtheskin.Peopleallovertheworldcouldgrowthericeandmakethecreamthemselves.Thiswouldpreventthecostandtravelrequiredformanypatientstoreceivetreatmentsandmedicine.

Theprocessofchangingthegeneticstructureoffoodcropshasbeendebatedforsometime.Criticsofgeneticallyengineeredcropsbelievetheycanharmpeople.Thescientificteamsaysfurthertestingisneededtoensurethatthegeneticengineeringprocessdoesnotproduceanyadditionalchemicalsthatcouldbedangeroustopeople.（1）Whatdoestheauthorintendtodoinparagraph3?A.

StresstheurgencyofHIVtreatments.B.

ProvidesomedataaboutHIV.C.

RemindreadersofHIVprevention.D.

IntroduceHIVtothepublic.（2）Inwhichwaywillthericebeusedatthelowestcost?A.

Bytransformingitintoproteins.B.

Byaddingittoanoraldrug.C.

ByattachingittotheHIVvirus.D.

Byprocessingitintoacream.（3）Whatcanweinferaboutthegeneticengineeringprocess?A.

ItcanpreventinfectionsofHIV.B.

Itcanproducedangerouschemicals.C.

Itstillrequiresperfecting.D.

Itappliestothedevelopedworld.（4）Fromwhichisthetextprobablytaken?A.

Abiologytextbook.B.

Ahealthmagazine.C.

Asocialwebpage.D.

Afirstaidbrochure.【答案】（1）A（2）D（3）C（4）B【解析】【分析】本文是一篇说明文，介绍了科学家培育出可预防艾滋病病毒感染的转基因水稻。研究人员表示，这一“突破性”的发现是“现在唯一的”以低成本为发展中国家生产抗艾滋病毒联合治疗的方法，但还有待于进一步的完善。（1）考查推理判断。根据第三段中的“nearly37millionpeoplewerelivingwithHIVin2017NowthereisnocureforHIV/AIDSthoughtherehavebeendevelopmentsinoraldrugtreatmentstoslowtheprogressionofthedisease”可知，“2017年全世界有近3700万人感染艾滋病毒。尽管口服药物治疗已经有了进展减缓了疾病的发展，但现在还没有治愈艾滋病毒/艾滋病的方法”。由此可推断出对于艾滋病的治疗迫在眉睫，非常紧迫。分析选项可知A项符合题意，故选A。（2）考查细节理解。根据第五段中的“Theysaytheeasiestandmostcost-effectivewaytousethericewillbetomakeitintoacreamtobeputontheskin.”可知，最简单、最划算的使用方法是将大米制成面霜涂在皮肤上。“themostcost-effective”与“thelowestcost”是同义词，“makeitintoacream”与“processitintoacream”是同义的。故选D。（3）考查推理判断。根据最后一段中的“Thescientificteamsaysfurthertestingisneededtoensurethatthegeneticengineeringprocessdoesnotproduceanyadditionalchemicalsthatcouldbedangeroustopeople.”可知，科学研究小组认为要进一步的测试，以确保基因工程过程不会产生任何可能对人类有害的额外化学物质。由此可推断这种基因工程的过程还需要进一步的完善。故选C。（4）考查推理判断。纵观全文可知，本文介绍了最近的一项研究，一种新的转基因水稻可以预防艾滋病病毒的感染。因此与人类的健康有关，所以本文可能是出现在健康杂志上，故选B。【点评】本题考点涉及细节理解和推理判断两个题型的考查，是一篇科研类阅读，考生需要准确捕捉细节信息，同时根据上下文进行逻辑推理，从而选出正确答案。5．犇犇阅读理解

InareasliketheCentralUnitedStatesthatgetlotsoftornadoes,there'sacommonpieceofcelestial（天上的）fortune-tellingthatgreenskiesmeanatornadoisonitsway.Researchhasshownthatitisn'tquiteassimpleasthat,butscientistshavefoundthatifyouseeagreensky,youshouldprobablygoinside.Asfarasmostscientistscantell,thegreenskiesaroundpowerfulthunderstormsareusuallyacombinationofredsunsetsandwaterdroplets.

Daytimeskiesarebluebecauseblueshorterwavelengthsofvisiblelighttendtobounceoff（反射）airmoleculesbetterthanredlongerwavelengthlight.Sothebluelightgetsbouncedallovertheskyandlookslikeit'scomingfromeverywhere.Meanwhile,aroundsunsetsunlighttravelsthroughsomuchatmospherethatjustaboutalltheblueisbouncedawayfromthehorizon,leavingallthoseredsandorangesbehind.Thesunsetmightlookexclusively（独有的）redandorange,butthere'sstillsomegreenandevenbluelighthiddeninthere,justfarlessthantheothercolors.Butforustonoticetheremaininggreenlight,itneedstohitsomethingthatreflectsgreenlightmuchbetterthanred.That'swherewatercomesin.

Bigtallthreateningstormcloudsaremadeofwaterdroplets,andeventhoughwaterisbestatreflectingbluelight,itcanstillreflectgreenprettywell,muchbetterthanredsandoranges,sounderjusttherightconditions,thewaterinandaroundacloudcanbouncethegreenlighthiddeninthesunsetrightintooureyesmakingtheskylookgreen.

Still,noneoftheconditionsthatcanturnskiesgreenareuniquetothecloudsthatproducetornadoes.Sometimestheyjustleadtolotsofrain,andmaybesomehail.Soifyouseehugestormcloudsrollinginandagreentint（色调）inthesky,itdoesn'tnecessarilymeanthere'sabouttobeatornado,butitdoesmeanyoushouldprobablyheadindoors.（1）Whatcanbethebesttitleforthetext?A.

WhyDotheCentralUnitedStatesGetTornadoesB.

DoGreenSkiesMeanaComingTornadoC.

ACommonPieceofCelestialFortune-tellingD.

GreenSkiesAreUniquetoClouds（2）Whyaretheskiesblueinthedaytime?A.

Becauseonlybluelightcanbebouncedinthedaytime.B.

Becausethereismorebluelightthanlightofothercolors.C.

Becausebluelightisbouncedalloverthesky.D.

Becauseredlightisweakerthanbluelight.（3）Whatdoestheunderlinedword"it"inparagraph2referto?A.

Thesunset.

B.

Redlight.

C.

Bluelight.

D.

Water.（4）Whatcanwelearnaboutfromthetext?A.

Stormcloudsaremadeofwaterdropletsandgreenlight.B.

Watercanreflectredlightaswellasbluelight.C.

Thereareonlyredandorangelightsinthesunsets.D.

Ifyouseeagreensky,therewillbeatornado.【答案】（1）B（2）C（3）A（4）B【解析】【分析】本文是一篇说明文，科学家发现天空呈现绿色并不是产生龙卷风的云层所独有的，有时它们会导致大量降雨，甚至冰雹，待在室内或许是最好的选择。（1）考查主旨大意。通读全文，根据第一段中的“there'sacommonpieceofcelestial（天上的）fortune-tellingthatgreenskiesmeanatornadoisonitsway.”和最后一段中的“Still,noneoftheconditionsthatcanturnskiesgreenareuniquetothecloudsthatproducetornadoes.Sometimestheyjustleadtolotsofrain,andmaybesomehail.”可知，本文主要话题是关注绿色的天空是否意味着即将来临的龙卷风展开的，故选B。（2）考查细节理解。根据第二段中的“Daytimeskiesarebluebecauseblueshorterwavelengthsofvisiblelighttendtobounceoff（反射）airmoleculesbetterthanredlongerwavelengthlight.”可知，白天天空是蓝色,因为蓝色短的波长的可见光会反射空气分子比红色的长波长光。故选C。（3）考查代词指代。根据第二段中的“Thesunsetmightlookexclusively（独有的）redandorange,butthere'sstillsomegreenandevenbluelighthiddeninthere,justfarlessthantheothercolors.”可知，选A。（4）考查推理判断。根据第三段中的“Butforustonoticetheremaininggreenlight,itneedstohitsomethingthatreflectsgreenlightmuchbetterthanred.That'swherewatercomesin.”可知，水既能反射蓝光，也能反射红光，故选B。【点评】本题考点涉及细节理解，代词指代，推理判断和主旨大意四个题型的考查，是一篇科普类阅读，要求考生在捕捉细节信息的基础上，进一步根据上下文的逻辑关系，进行分析，推理，概括和归纳，从而选出正确答案。6．犇犇阅读理解

Agooddisguisekeepsyouhidden,right?Well,sometimesthebestdisguiseisactuallythemostdazzlingbecauseresearchrevealsthatflashymetalliciridescence(金属彩虹色)canvisuallypuzzlepredators,whichallowscolorfulpreytosurviveanotherday.ThosesurprisingresultsappearinthejournalScientificReports.

Shiningiridescentcolor,whichchangesdependingontheanglefromwhichit'sviewed,isfavoredbyeverythingfrombirdstobeetlesandblossomstobutterflies.

"Andinourresearchgroupweareofcourseinterestedinwhythisvividmetalliccolorissowidespreadinnature."KarinKjernsmooftheUniversityofBristoladdsthatinsomecasestheshowysplashesoflightareasexualstrategy."HereIwouldliketopointoutthatinsomespecies,particularlythosethatdisplaystrongsexualdimorphism(雌雄两性),suchasbirdsofparadiseorsomebutterfliesorfishes,theoccurrenceofiridescenceismostlikelydrivenbysexualselection.Forexample,inmanyofthesecasesitisthemalesthathavethesevividiridescentcolorsandtheyusetheminmatechoiceortheyusethemasasignaltoattractmates."

Butiridescencealsoshowsupinsituationswherereproductionisnotanissue."Sowhatwearestudyingnowiswhethernaturalselectionimposedbypredation(捕食行为)couldexplaintheoccurrenceofiridescenceinpreyanimals."

Theideathateye­catchingcolorscouldbeusedasacover­upisn'tanewone."Thefatherofcamouflagetheory,AbbottThayer,reallybelievedthatiridescenceshouldbecategorizedasacamouflagestrategy.AndhewroteinhisfamouslifeworkConcealing­ColorationintheAnimalKingdom,alreadyin1909,that'brilliantlychangeableormetalliccolorsareamongthestrongestfactorsinananimal'sconcealment'.Andthissoundslikeacompletelyunreasonablethingtosay,becausehowcancolorsthatarebothbrilliantandchangeablecontributetoanimal'sconcealment？"

"Inasimilarway,wewereaskingwhetheriridescence,duetoitschangeability,couldworkasaformofcamouflagebypreventingshaperecognition."Kjernsmoandhercolleaguestrainedbumblebeestoassociateaparticularshape—acircleoranoval—withasugarreward.Andtheyfoundthatthebees,whengivenachoice,wouldpreferentiallyvisittheshapetheyknewtobesweet.Butwhentheshapeswereiridescent,thebeeshadtroubletellingthemapart."Itseemedthatthestrikinglyiridescentsurfacesonourtargetsvisuallybrokeuptheotherwiserecognizableshapeofthetargets,whichmadethemhardtodistinguish."Asformakinguseofthismethodforhidinginplainsight,"Anypracticalapplicationsisofcoursedirectlylinkedtoanyindustrythathasaninterestincamouflage,thatishowtoconcealobjectsormakethemmoredifficulttorecognize."Theresearchersarecurrentlyconductingexperimentswithbirds,whichoftenpreyoniridescentinsectstoseeifithelpstohaveabird's­eyeview.（1）Accordingtothepassage,iridescenceisnotmadeuseofbyanimalsto________.A.

livealittlelongerbyescapingtheirpredator(捕食者)

B.

catchtheattentionoftheirmatesC.

concealthemselveswhenindanger

D.

catchsightofmorecolorfulpreys（2）Fromthestudyinthelastparagraph,wecanlearnthat________.A.

BeescanalwaystellthedifferencebetweenacircleandanovalB.

BeesarecreaturesthatarefascinatedbysweetthingsthatareiridescentC.

Ifacircle,withasugarreward,isiridescent,thebeesmayhavedifficultyfindingitD.

Beesarelikelytoprefercirclestoovals,whethertheyareiridescentornot（3）Whatwillbetalkedaboutinthefollowingparagraph?A.

Whetherthereareanydifferencesbetweenbeesandbirds.B.

Someindustriesthathavegreatinterestincamouflage.C.

Whybirdsarenoteffectedbyiridescentinsects.D.

Whichcamouflagetheoryappliesmoretobirds.（4）Whichofthefollowingmightserveasthebesttitleofthepassage?A.

Afamouscamouflagestrategy

B.

MetalliciridescentasthebestdisguiseC.

Colorsuniquetoanimals

D.

Shiningcolorsasasexualstrategy【答案】（1）D（2）C（3）C（4）B【解析】【分析】本文是一篇说明文，介绍了彩虹色有助于生物隐藏。（1）考查细节理解。根据第一段中的“Agooddisguisekeepsyouhidden,right?Well,sometimesthebestdisguiseisactuallythemostdazzlingbecauseresearchrevealsthatflashymetalliciridescence(金属彩虹色)canvisuallypuzzlepredators,whichallowscolorfulpreytosurviveanotherday.”可知彩虹色被动物用来通过逃离捕食者而活得更久，排除A；根据第三段中的“HereIwouldliketopointoutthatinsomespecies,particularlythosethatdisplaystrongsexualdimorphism(雌雄两性),suchasbirdsofparadiseorsomebutterfliesorfishes,theoccurrenceofiridescenceismostlikelydrivenbysexualselection.”在这里我想指出的是，在某些物种中，尤其是那些表现出强烈两性差异的物种，比如天堂鸟、孔雀，甚至在某些蝴蝶或鱼类中，彩虹色的出现很可能是由性别选择所驱动的。可知动物用彩虹色引起同伴的注意，排除B；根据倒数第二段中的“Theideathateye­catchingcolorscouldbeusedasacover­upisn'tanewone.”引人注目的颜色可以用来伪装，这种想法并不新鲜，排除C，故选D。（2）考查细节理解。根据最后一段中的“Itseemedthatthestrikinglyiridescentsurfacesonourtargetsvisuallybrokeuptheotherwiserecognizableshapeofthetargets,whichmadethemhardtodistinguish.”似乎我们的目标上惊人的彩虹表面在视觉上打破了原本可以辨认的目标形状，这使得它们很难区分。故选C。（3）考查推理判断。根据最后一段说研究人员目前正在对鸟类进行实验，这些鸟类的饮食中经常含有彩虹色的昆虫。实验目的是看看鸟类的视角是否能提供帮助。由此推断接下来一段会谈论为什么鸟类不受彩虹色昆虫的影响，故选C。（4）考查主旨大意。第一段中的“Well,sometimesthebestdisguiseisactuallythemostdazzlingbecauseresearchrevealsthatflashymetalliciridescence(金属彩虹色)canvisuallypuzzlepredators,whichallowscolorfulpreytosurviveanotherday.”有时，最好的伪装其实是最耀眼的伪装，因为研究表明，闪光的金属彩虹色能在视觉上迷惑捕食者，这让五颜六色的猎物能够再存活一天，是全文的主题句，结合全文内容，可知这篇文章主要讲了彩虹色有助于生物隐藏，故选B。【点评】本题考点涉及细节理解，推理判断和主旨大意三个题型的考查，是一篇科研类阅读，要求考生在捕捉细节信息的基础上，进一步根据上下文的逻辑关系，进行分析，推理，概括和归纳，从而选出正确答案。7．犇犇阅读理解

Environmentalexpertswarnthatourplanetisdrowninginplastic.

Theworld'scitiesproduce2billiontonsoftrasheveryyear.Bytheyear2050thatnumberisexpectedtoriseto3billiontons.TheWorldBankestimatesthatthelargestamountoftrashtoday,about44percent,isplastic.Butweoftenhavetobuypackagedgoods.Andoftenthatpackagingismadeofplastic.

Now,thatmaybechanging.Anewenvironmentally-friendlyshoppingmodelwasrecentlylaunchedattheWorldEconomicForuminDavos,Switzerland.Thisshoppingmodel,calledLoop,aimstoreplacethrowawaycontainerswithreusableones.

LoopistheideaofTerraCycle,anAmerican-basedrecyclingcompany.Itschief,TomSzakytoldtheAssociatedPress(AP)that"removingplasticsfromtheoceanisnotenough."Hesaidthepointistogetawayfromsingle-usepackages.SzakysaidthatLoopisthefutureofshopping.Butitcomesfromanideaofthepast.

Hecomparedittothe"milkmanmodel"ofthe1950sintheUnitedStates.Backthen,someonebroughtmilktoyourdoorstepinglassbottlesandthenleftwithemptybottles.Thesecouldbecleanedandusedagain.Theresultiszero-waste.

JenniferMorganfromtheenvironmentalnon-profitorganizationGreenpeacealsojoinedinthediscussionaboutLoopatDavos.Shesaidthat"GreenpeacewelcomestheaimoftheLoopAlliancetomoveawayfromthrowawaycultureanddispos