阅读理解(科普环保)练习题含答案及解析

阅读理解(科普环保)练习题含答案及解析一、高中英语阅读理解科普环保类1．犇犇阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

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

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

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

Afterbeingtakenapartandsorted,thesmallelectronicsunderwentasmeltingprocesstoextract(提炼)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】本文是一篇说明文，介绍了日本将回收利用废弃的电子产品中的金属，用于制作2020年奥运会奖牌。（1）考查推理判断。根据第三段中的"Inaperiodofabout18months,alittleover5millionsmartphoneswerecollectedthankstocooperationwithNTTDOCOMO."在大约18个月的时间里，由于与NTTDocomo的合作，收集了500多万部智能手机，故选D。（2）考查词义猜测。根据第二段中的"Already,thequantityneededforbronzemedalshasbeenmet,andthey'reinthehomestretchforsilverandgoldmedals,meaningthecollectionprocesscanpackupattheendofMarch."铜牌所需要的数量已经达到了，并且到了最后关头，也就是说，收集过程可以在3月底完成。inthehomestretch固定短语，“最后关头”，故选C。（3）考查推理判断。根据最后一段中的"SowhiletheTokyoOlympicsinitiativemightbejustadropinthebucket,it'sagoodstartinshowingwhatthepubliccandoifthey'remademoreawareoftheissue."所以尽管东京奥运会的提议只是杯水车薪，这是一个很好的开始，展示了如果公众对这个问题有了更多的认识，他们能做些什么。故选D。（4）考查推理判断。根据全文的描述，可知作者对于东京奥运倡议是持积极的态度，故选A。【点评】本题考点涉及词义猜测和推理判断两个题型的考查，是一篇科研类阅读，考生需要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。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。

Throughoutmuchofhumanhistory,manhasbeenthemeasureofmany,ifnotall,things.Lengthsweredividedupintofeetandsmallerunitsfromthehumanhand.Othermeasureswereequallycharacteristic.Mediterraneantradersforcenturiesusedtheweightofgrainsofwheattodefine(定义)theirunitsofmass.TheRomansusedlibra,forerunnerofthepound,byreferringtotheweightofacarob(角豆树)seed.

Thesizesofsimilarlynamedunitscouldalsodiffer.Theking'sfoot,usedinFrancefornearly1,000yearsafteritsintroductionbyCharlemagneinaround790AD,was,at32.5cm,aroundacentimetershorterthantheBelgicfoot,usedinEnglanduntil1300.Greek,EgyptianandBabylonianversionsofwaterinafixedcontainervariedfromoneanotherbyafewkilos,Norwasthereagreementonsuchthingswithincountries.InFrance,wheretherewasnounified(统一的)measurementsystematthenationallevel,thesituationwasparticularlyterrible.Thelieue(formermeasureofdistance),forexample,variedfromjustover3kminthenorthtonearly6kminthesouth.

AlthoughJohnWilkins,anEnglishman,firstputforwardadecimalsystem(十进制)ofmeasurementin1668,itwastheFrenchwhoin1799madeitlaw.TheSystèmeInternationald'Unités(SI,orthemetricsystem,asitisbetterknown)developedfromitandbecametheofficialmeasurementinallcountriesexceptMyanmar,LiberiaandtheUnitedStates.NowtheInternationalBureauofWeightsandMeasuresinParisissettogivethemetricsystemitsbiggestshake-upyet.

AtameetinginVersailles,France,onNovember16th,2018,theworld'smeasurementbodiesarealmostcertaintoapproveadecisionthatwillmeanfouroutofthesevenbaseSIunits,includingthekilogram,willfollowtheotherthree,includingthemetre,inbeingredefinedintermsofthevaluesofphysicalconstants(物理常数).Eachofthechosenconstantshasbeenmeasuredincrediblyprecisely,whichwouldmeanthatfromMay20th2019theconstantswillthemselvesbefixedattheircurrentvaluesforever.Anylaboratoryintheworldwillthenbeabletomeasure,forexample,themassofanobjectaspreciselyastheaccuracyoftheirequipmentwillallow.（1）WhatdoesParagraph1mainlytellus?A.Poundwentbeforelibrainmeasurement.B.Differentthingsusedtobeadoptedasmeasures.C.GrainswereacceptedasmeasuresbytheRomans.D.Fixedmeasurementsystemsweregraduallyformed.（2）Howdoestheauthordevelopthesecondparagraph?A.Intimeorder.B.Byanalysis.C.Inspaceorder.D.Bycomparison.（3）WhichofthefollowingcountriesusedSIasanofficialmeasurement?A.France.B.Liberia.C.America.D.Myanmar.（4）Whatwilltheworld'smeasurementbodiesachieveatthemeetingheldinVersailles?A.TheywillcomeupwithsevennewSIunits.B.TheywillsetMay20thasanewinternationalfestival.C.TheywillredefinefourSIunitsincludingthekilogram.D.Theywilldecideonanewmeasureusedinthelaboratory.【答案】（1）B（2）D（3）A（4）C【解析】【分析】本文是一篇说明文，法国凡尔赛宫举办的国际计量大会，将对目前使用的国际单位制中的四个基本单位进行重新定义，其中包括对千克的重新定义。（1）考查推理判断。根据第一段中的“manhasbeenthemeasureofmany,ifnotall,things”以及下文提到的用作计量单位的手、脚、谷物重量和参考角豆种子重量的磅可知，本段主要讲述了不同的东西被用作计量单位。故选B。（2）考查推理判断。根据第二段中的“Theking'sfoot...aroundacentimetreshorterthantheBelgicfoot”和“Greek,EgyptianandBabylonianversionsofwaterinafixedcontainervariedfromoneanotherbyafewkilos,以及Thelieue(formermeasureofdistance),forexample,variedfromjustover3kminthenorthtonearly6kminthesouth”可推知，本段作者主要运用了对比的写作方法，把同一计量单位在不同国家之间或者在同一国家不同区域间的差异进行了说明。故选D。（3）考查细节理解。根据第三段中的“itwastheFrenchwhoin1799madeitlaw和TheSystèmeInternationald'Unités(SI,orthemetricsystem,asitisbetterknown)developedfromitandbecametheofficialmeasurementinallcountriesexceptMyanmar,LiberiaandtheUnitedStates”可知，在所给出的四个国家中，只有法国采用国际单位制(SI)。国际单位制是现时世界上最普遍采用的标准度量衡单位系统，采用十进制进位系统。故选A。（4）考查细节理解。根据最后一段中的“AtameetinginVersailles,France,onNovember16th,2018,theworld'smeasurementbodiesarealmostcertaintoapproveadecisionthatwillmeanfouroutofthesevenbaseSIunits...willfollowtheotherthree...inbeingredefinedintermsofthevaluesofphysicalconstants”可知，在法国凡尔赛宫召开的会议上，七个基本计量单位中的四个将被重新定义，其中包括对千克的重新定义。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，同时根据上下文进行逻辑推理，从而选出正确答案。4．犇犇阅读下面文章，然后从题中所给的A、B、C、D四个选项中，选出每个问题的最佳选项。

AninternationalteamofresearchersfromtheUniversityofOxfordhavefoundthatthewaypeopleusetheInternetiscloselytiedtotheseasonalmovementsinthenaturalworld.Theironlinespeciessearchesfollowthepatternsofseasonalanimalmigrations(迁徙).

Migratorybirds(候鸟)floodbacktowheretheyreproduceeveryspring.Thatmigratorybehaviorisaccompaniedbysomehumanbehavior."InEnglish-languageWikipedia(维基百科),theonlinesearchesformigratoryspeciestendtoincreaseinspringwhenthosebirdsarriveintheUnitedStates,"saidtheleadauthorJohnMittermeier.

Andnotjustbirds.Mittermeierandhisteamsurveyednearly2.5billionWikipediasearchrecords,for32,000species,across245languages.Theyalsosawvariablesearchratesforinsects,horsetailsandfloweringplants.SeasonaltrendsseemedtobewidespreadinWikipediabehaviorformanyspeciesofplantsandanimals.

Thisfindingsuggestsnewwaystomonitorchangesintheworld'sbiologicaldiversity.Italsoshowsnewwaystoseehowmuchpeoplecareaboutnature,andwhichspeciesandareasmightbethemosteffectivetargetsforconservation.

Mittermeierisencouragedbythesearchresults.Hecommented,"Ithinkthere'saconcernamongconservationists(生态环境保护者)thatpeoplearelosingtouchwiththenaturalworldandthatthey'renotinteractingwithnativespeciesanymore.Andsointhatsense,itwasreallyexcitingandquiteunexpectedformetoseepeople'sWikipediainterestcloselyrelatedtochangesinnature."

RichardGrenyer,AssociateProfessorfromtheUniversityofOxford,sayssearchdataisusefultoconservationbiologists,"Byusingthesebigdataapproaches,wecandirectourattentiontowardsthedifficultquestionsinmodernconservation:whichspeciesandareasarechanging,andwherearethepeoplewhocarethemostandcandothemosttohelp."（1）Whathaveresearchersfoundaboutspeciessearches?A.Theystrengthentiesamongpeople.B.Theyaffecttheanimalmovements.C.Theydifferinlanguagebackgrounds.D.Theyreflectanimalmigrationseasons.（2）WhatisthepurposeofwritingParagraph3?A.Tosummarizetheresearchprocess.B.Tofurthersupporttheresearchfindings.C.Toshowthevarietyofspeciessearches.D.Topresentresearchers'heavyworkload.（3）HowdoesMittermeierfeelaboutthesearchresults?A.SatisfiedwithWikipedia'sservice.B.WorriedaboutWikipediabehavior.C.Amazedatpeople'scareaboutnature.D.Sadaboutpeople'snotgettingclosetonature.（4）WhydoesRichardthinksuchsearchdataisuseful?A.Ithelpstoaimatconservationtargets.B.Itincreasesinterestinbigdataapproaches.C.Itkeepstrackoftrendsinbiologists'work.D.Itpushespeopletosolvedifficultproblems.【答案】（1）D（2）B（3）C（4）A【解析】【分析】本文是一篇说明文，牛津大学的一个国际研究小组发现，人们使用互联网的方式与自然界的季节性运动密切相关。他们的在线物种搜索遵循季节性动物迁徙的模式。这一发现提出了监测世界生物多样性变化的新方法。它还展示了一种新的方式来了解人们有多关心自然，以及哪些物种和地区可能是最有效的保护目标。（1）考查细节理解。根据第一段中的“Theironlinespeciessearchesfollowthepatternsofseasonalanimalmigrations(迁徙).”可知关于物种搜索，研究人员发现了他们遵循季节性动物迁徙的模式。故选D。（2）考查推理判断。根据第三段中的“SeasonaltrendsseemedtobewidespreadinWikipediabehaviorformanyspeciesofplantsandanimals.”可知在维基百科上，许多动植物的行为似乎都有季节性趋势。即第三段的写作目的是为了进一步支持研究结果。故选B。（3）考查细节理解。根据倒数第二段中的“itwasreallyexcitingandquiteunexpectedformetoseepeople'sWikipediainterestcloselyrelatedtochangesinnature”可知Mittermeier看到人们对维基百科的兴趣是与大自然的变化密切相关的，感到非常兴奋和意外。故选C。（4）考查细节理解。根据最后一段中的“Byusingthesebigdataapproaches,wecandirectourattentiontowardsthedifficultquestionsinmodernconservation:whichspeciesandareasarechanging,andwherearethepeoplewhocarethemostandcandothemosttohelp.”可知Richard认为通过使用这些大数据方法，我们可以将我们的注意力转向现代保护中的难题:哪些物种和地区正在发生变化，哪些人最关心这些问题，哪些人能够提供最多的帮助。即他认为这些搜索数据可以有助于设定保护目标。故选A。【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，要求考生在捕捉细节信息的基础上，根据上下文进行逻辑推理，从而选出正确答案。5．犇犇阅读下面文章，然后从题中所给的A、B、C、D四个选项中，选出每个问题的最佳选项。

Mytwo-andfour-year-oldboyslovetowin,whetherthey'reracingtheirbikesdownthesidewalkorjustfinishingtheirsnacks.It'struethatthosewithhighstatus,fromworldleadersandprizewinnerstoathletesandmoviestars,arepeoplewelikeandrespect.ArecentstudypublishedinNatureHumanBehaviourshowedthatweseemtohaveaninnate(天生的)preferenceforhigh-rankingpeoples—butonlyifthosepeoplearen'thurtfultowardothers.

Researchersshowedtoddlers(aged21to31months)ascenewheretwopuppets(木偶)approachedoneanotherfromoppositesidesofastageandonebowedtolettheotherpassfirst.Askedwhichpuppettheylikedbetter,18ofthe21toddlersintheexperimentreachedforthepuppetwhohadbeenallowedtopass.Becauserespectfromothersisamarkerofstatus,thissuggeststhatchildrenhaveapreferenceforthosewithahigherstatus—evenbeforeagethree.

However,theresultswerequitedifferentwhentwopuppetsapproachedoneanotherandoneusedforcetoknocktheotherdownbeforecontinuingtotheotherside.Inthiscase,18ofthe21toddlersreachedfortheonewhowasknockeddown.Astheresearchersconcluded,"Whenapproachingothers,veryyoungchildrencarenotonlywhowins,butalsohow."Thepreviousexperimenthasshownthattoddlersknowaboutsocialstatus,butthisexperimentwentonestepfurtherbyprovingtheyhaveanobviouspreferenceforhighstatus.Sincetheparticipantsweresoyoung,thismightevenbeaninnatehumanpreference.

Inaword,thisnewresearchsuggeststhatyoungchildrenappreciatepeoplewhodowellwhileatthesametimedoinggoodtoothers.So,whenmyfour-year-oldthinksthathehastogethisshoesonfirst,I'llkeepremindinghimthathelpinghisbrothersotheybothfinishfasteriswhatwinningisallabout.（1）Whatdowetendtodoaccordingtothefirstparagraph?A.Seekchallengesallthetime.B.Admirehigh-rankingpeople.C.Takeadvantageofhighstatus.D.Hurtotherswithoffensivewords.（2）Whydidtoddlerspreferthepuppetallowedtopass?A.Itlookedadorable.B.Itbehavedsmartly.C.Itseemedpolite.D.Itwasrespected.（3）Whatcanweinferfromthelatterstudy?A.Slowerpeoplearebetterlovedbytoddlers.B.Peoplenaturallydislikeunkindbehavior.C.Toddlerscarelittleabouthighsocialstatus.D.Beinghelpfulcontributestobeingsupported.（4）Whatshouldwedowhenweencouragechildrentowin?A.Instructthemtouseproperandcreativeways.B.Advisethemtobeashardworkingaspossible.C.Remindthemtobeconsideratetootherpeople.D.Tellthemtotrytocooperatewithsomeoneelse.【答案】（1）B（2）D（3）B（4）C【解析】【分析】本文是一篇说明文，介绍了人们更倾向于喜欢和尊敬地位高而又无害于他人的人，这似乎是一种天性，即使是蹒跚学步的孩子也是如此。（1）考查细节理解。根据第一段中的“ArecentstudypublishedinNatureHumanBehaviourshowedthatweseemtohaveaninnate（天生的）preferenceforhigh-rankingpeoples—butonlyifthosepeoplearen'thurtfultowardothers.”可知，我们更倾向于敬佩那些地位高的人。故选B。（2）考查细节理解。根据第二段中的“Askedwhichpuppettheylikedbetter,18ofthe21toddlersintheexperimentreachedforthepuppetwhohadbeenallowedtopass.Becauserespectfromothersisamarkerofstatus,thissuggeststhatchildrenhaveapreferenceforthosewithahigherstatus—evenbeforeagethree.”可知，蹒跚学步的孩子喜欢那个被允许通过的木偶，是因为这种行为代表着受人尊敬，孩子们更喜欢受尊敬的人。故选D。（3）考查推理判断。根据第三段中的“Inthiscase,18ofthe21toddlersreachedfortheonewhowasknockeddown.和Sincetheparticipantsweresoyoung,thismightevenbeaninnatehumanpreference.”可知，孩子们会走向被撞倒的人，而由于孩子太小，甚至可能是人类与生俱来的偏好。由此可推断出，人们天生不喜欢不友善的行为。故选B。（4）考查推理判断。根据最后一段中的“Inaword,thisnewresearchsuggeststhatyoungchildrenappreciatepeoplewhodowellwhileatthesametimedoinggoodtoothers.”可知，孩子欣赏那些在做好事的同时表现出色的人。由此可推断出，我们鼓励孩子去赢的同时，提醒他们要体谅他人。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，是一篇科教类阅读，考生需要准确掌握细节信息，同时根据上下文进行逻辑推理，从而选出正确答案。6．犇犇阅读理解

Hackingisn'tjustforcomputersandsmartphones,AccordingtoastudypublishedlastweekinthejournalScience,scientistshavefoundawaytohackaplant'sgenesinordertomakeitusesunlightmorequickly.Someday,theresultscouldincreasetheamountoffoodproducedaroundtheworld.

Photosynthesis（光合作用）isthewordusedtodescribehowplantsusesunlight,water,andcarbondioxidetomaketheirownfood.Scientistswhoconductedthenewstudysaythisisaveryslowprocess.Plantsuselessthan1percentoftheenergyavailabletotherm.Butbyhackingaplant'sgenes,thescientistswereabletoincreasetheamountofleafgrowthonplantsbetween14and20percent.

"Specifically,scientistshackedtheplant'sprotectivesystem.Normally,thissystemisactivatedwhenaplantgetstoomuchsunlight,"saidscientistKrishnaNiyogi,co-authorofthestudy.Whentheplantsensesthelight,itgetsridofextraenergyandcreatesmoreleaves.Whentheplantisinshade,theprotectivesystemisturnedoff,buttheprocessisslow.

StephenLongistheleadauthorofthestudy.Hecomparedaplant'sprotectivesystemtolight-adjustingglasses.Whenapersonwearstheglassesoutsideduringtheday,thelenses（镜片）darkenandlightendependingonhowsunnyitis.Plantsdothesamething,hesaid.Butinplantstheadjustmentcantakeanywherefrom10minutestoanhour.Thismakesithardforplantstogettherightamountofsunlightneededtocreatefood.

Thenewstudyspeduptheprocess.Bychangingtheplant'sgenes,theprotectivesystemturnedonandoffmorequicklythannormal.Asaresult,leafgrowthontheplantsscientistsusedinthestudyincreased.Leafgrowthintwoplantsincreasedby20percent,whileleafgrowthonathirdplantincreasedby14percent.Scientistsconductedthestudyontobaccoplants.Buttheythinkthegeneticchangeswillproducethesameresultsincornandrice.（1）Whatwillhappentotheplantswhenscientistschangeplants'genes？A.

Theywillbecomeweakerandweaker.

B.

Theywillgrowfasttoproducemorefood.C.

Theywillhavemorebeautifulflowers.

D.

Theywilldependlessonsunlight.（2）Whydoestheauthormentionlight-adjustingglasses？A.

Towarnpeopleofthehotandbrightsun.B.

Toexplaintheprincipleofplants'protectivesystem.C.

Tohelpleavesoftheplantsabsorbsunlight.D.

Toservethescienceexperimentsmoothly.（3）Inthefuture,thegeneticchangeswillbeusedto.A.

improvetobaccoplants'quality

B.

increasetobaccoplants'leavesandrootsC.

improvetheflowers'livingtime

D.

increasetheproductionofcornandrice（4）Whichofthefollowingcanbethethemeofthistext？A.

Hackingplantsformoreproduction

B.

LeafgrowingmorequicklyC.

Doubleproductionoftobaccoplants

D.

Photosynthesisandproduction【答案】（1）B（2）B（3）D（4）A【解析】【分析】本文是一篇说明文，科学家通过改变植物的基因，加快光合作用的速度，使植物叶子生长迅速，从而提高植物产量。（1）考查细节理解。根据第一段中的“scientistshavefoundawaytohackaplant'sgenesinordertomakeitusesunlightmorequickly.Someday,theresultscouldincreasetheamountoffoodproducedaroundtheworld.”可知，科学家发现改变植物基因会使植物的光合作用速度加快，将来会增加全球植物的产量。故选B。（2）考查推理判断。根据第四段中的“Hecomparedaplant'sprotectivesystemtolight-adjustingglasses.Whenapersonwearstheglassesoutsideduringtheday,thelenses（镜片）darkenandlightendependingonhowsunnyitis.Plantsdothesamething,hesaid.Butinplantstheadjustmentcantakeanywherefrom10minutestoanhour.”可知，作者提到镜片是为了说明植物的保护系统的工作原理与镜片相同。故选B。（3）考查细节理解。根据最后一段中的“Buttheythinkthegeneticchangeswillproducethesameresultsincornandrice.”但是他们认为基因的改变将在玉米和水稻中产生相同的结果。可知选D。（4）考查主旨大意，根据文章内容可知，科学家改变植物的基因，加快光合作用的速度，使植物叶子生长迅速，从而提高植物产量。故选A。【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．阅读理解

Imagineyourclothingcouldreleaseenoughheattokeepyouwarmandcozy,allowingyoutostaycomfortableinacoolerroom.Or,pictureacarwindshieldthatstoresthesun'senergyandthenreleasesitasheattomaketheiceonthewindshielddisappear.

AccordingtoateamofresearchersatMIT,bothcasesmaybepossiblebeforelong,thankstoanewmaterialthatcanstoresolarenergyduringthedayandreleaseitlaterasheat.Thistransparentpolymerfilmcouldbeappliedtomanydifferentsurfaces,suchaswindowglassorclothing.

Solarenergyisonlyavailableabouthalfthetimeweneedit—duringdaylight.Forthesuntobecomeamajorpowerproviderforhumanneeds,therehastobeanefficientwaytosaveitupforuseduringnighttimeandstormydays.Mostsucheffortshavefocusedonstoringandrecoveringsolarenergyintheformofelectricity,butthenewfinding,byMlIprofessorJeffreyGrossman,PostdocDavidZhitomirskyandgraduatestudentEugeneCho,couldprovideahighlyefficientmethodforstoringthesun'senergythroughachemicalreactionandreleasingitlaterasheat.

Thekeytoenablinglong-term,stablestorageofsolarheat,theteamsaid,istostoreitintheformofachemicalchangeratherthanstoringtheheatitself.Butheatwilldisappearovertimenomatterhowgoodthematerialarounditis,sotheteamsetupachemicalstoragesystemthatcankeeptheenergyinastablemolecularconfiguration.Whenexposedtosunlight,themoleculescanstaythatwayforlongperiodsThen,whentriggered(触发)byaveryspecifictemperatureorsomethingelse,themoleculesreturntotheiroriginalshape,givingoffheatintheprocess.

Suchchemically-basedstoragematerials,knownasSolarThermalFuels(STF),havebeendevelopedbefore.Butthoseearliereffortsweredesignedtobeusedinliquidsolutionsandnotabletomakedurable(耐用的)solid-statefilms.Thenewapproachisthefirstbasedonasolid-statematerial,inthiscaseapolymer,andthefirstbasedoninexpensivematerialsandwidespreadproductiontechnology.（1）WhatisthemainpurposeofParagraph1?A.Toshowthemainideaofthepassage.B.Topracticereaders'imagination.C.Tointerestreadersinthepassage.D.Tointroduceanewkindofmaterial.（2）Accordingtothepassage,whatcanthepolymerfilmdo?A.Itcanbemadeintowindowglass.B.Itcanmakenecessaryelectricity.C.Itcanstoreenergyandreleasesunshine.D.Itcanabsorbsunshineandgiveoffheat.（3）Accordingtothepassage,whatisSTFbasedon?A.Thechemicalreaction.B.Themovementofheat.C.Theformofelectricity.D.Thephysicalreaction.（4）Whatistheadvantageofthemolecularconfiguration?A.Itislessexpensive.B.Itisverypowerful.C.Itiseasilyavailable.D.Itislesschangeable.【答案】（1）C（2）D（3）A（4）D【解析】【分析】本文是一篇说明文，介绍了一种新型材料，它可以通过自身吸热并储存热量，之后能够根据需要释放热。（1）考查推理判断。根据第一段“Imagineyourclothingcouldreleaseenoughheattokeepyouwarmandcozy,allowingyoutostaycomfortableinacoolerroom.Or,pictureacarwindshieldthatstoresthesun'sener