高考英语一轮专题巡练 考点17 阅读理解说明文考点专练（含解析）-人教版高三英语试题

考点17阅读理解之说明文（2020•全国卷I，C）Racewalkingsharesmanyfitnessbenefitswithrunning,researchshows,whilemostlikelycontributingtofewerinjuries.Itdoes,however,haveitsownproblem.Racewalkersareconditionedathletes.ThelongesttrackandfieldeventattheSummerOlympicsisthe50-kilometerracewalk,whichisaboutfivemileslongerthanthemarathon.Butthesport’srulesrequirethataracewalker’skneesstaystraightthroughmostofthelegswingandonefootremainincontact(接触)withthegroundatalltimes.It’sthisstrangeformthatmakesracewalkingsuchanattractiveactivity,however,saysJaclynNorberg,anassistantprofessorofexercisescienceatSalemStateUniversityinSalem,Mass.Likerunning,racewalkingisphysicallydemanding,shesays,Accordingtomostcalculations,racewalkersmovingatapaceofsixmilesperhourwouldburnabout800calories(卡路里)perhour,whichisapproximatelytwiceasmanyastheywouldburnwalking,althoughfewerthanrunning,whichwouldprobablyburnabout1,000ormorecaloriesperhour.However,racewalkingdoesnotpoundthebodyasmuchasrunningdoes,Dr.Norbergsays.Accordingtoherresearch,runnershitthegroundwithasmuchasfourtimestheirbodyweightperstep,whileracewalkers,whodonotleavetheground,createonlyabout1.4timestheirbodyweightwitheachstep.Asaresult,shesays,someoftheinjuriesassociatedwithrunning,suchasrunner’sknee,areuncommonamongracewalkers.Butthesport’sstrangeformdoesplaceconsiderablestressontheanklesandhips,sopeoplewithahistoryofsuchinjuriesmightwanttobecautiousinadoptingthesport.Infact,anyonewishingtotryracewalkingshouldprobablyfirstconsultacoachorexperiencedracertolearnpropertechnique,shesays.Ittakessomepractice.28.Whyareracewalkersconditionedathletes?A.Theymustrunlongdistances.B.Theyarequalifiedforthemarathon.C.Theyhavetofollowspecialrules.D.Theyaregoodatswingingtheirlegs.29.Whatadvantagedoesracewalkinghaveoverrunning?A.It’smorepopularattheOlympics.B.It’slesschallengingphysically.C.It’smoreeffectiveinbodybuilding.D.It’slesslikelytocausekneeinjuries.30.WhatisDr.Norberg’ssuggestionforsomeonetryingracewalking?A.Gettingexperts’opinions.B.Havingamedicalcheckup.C.Hiringanexperiencedcoach.D.Doingregularexercises.31.Whichwordbestdescribestheauthor’sattitudetoracewalking?A.Skeptical. B.Objective.C.Tolerant. D.Conservative.A篇（2020•全国卷1D）Theconnectionbetweenpeopleandplantshaslongbeenthesubjectofscientificresearch.Recentstudieshavefoundpositiveeffects.AstudyconductedinYoungstown，Ohio，forexample,discoveredthatgreenerareasofthecityexperiencedlesscrime.Inanother，employeeswereshowntobe15%moreproductivewhentheirworkplacesweredecoratedwithhouseplants.TheengineersattheMassachusettsInstituteofTechnology(MIT)havetakenitastepfurtherchangingtheactualcompositionofplantsinordertogetthemtoperformdiverse，evenunusualfunctions.Theseincludeplantsthathavesensorsprintedontotheirleavestoshowwhenthey’reshortofwaterandaplantthatcandetectharmfulchemicalsingroundwater.＂We’rethinkingabouthowwecanengineerplantstoreplacefunctionsofthethingsthatweuseeveryday,＂explainedMichaelStrano,aprofessorofchemicalengineeringatMIT.Oneofhislatestprojectshasbeentomakeplantsgrow(发光)inexperimentsusingsomecommonvegetables.Strano’steamfoundthattheycouldcreateafaintlightforthree-and-a-halfhours.Thelight，aboutone-thousandthoftheamountneededtoreadby，isjustastart.Thetechnology,Stranosaid,couldonedaybeusedtolighttheroomsoreventoturntreeintoself-poweredstreetlamps.inthefuture，theteamhopestodevelopaversionofthetechnologythatcanbesprayedontoplantleavesinaone-offtreatmentthatwouldlasttheplant’slifetime.Theengineersarealsotryingtodevelopanonandoff＂switch＂wheretheglowwouldfadewhenexposedtodaylight.Lightingaccountsforabout7%ofthetotalelectricityconsumedintheUS.Sincelightingisoftenfarremovedfromthepowersource(电源)-suchasthedistancefromapowerplanttostreetlampsonaremotehighway-alotofenergyislostduringtransmission(传输).Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.32.Whatisthefirstparagraphmainlyabout?A.Anewstudyofdifferentplants.B.Abigfallincrimerates.C.Employeesfromvariousworkplaces.D.Benefitsfromgreenplants.33.WhatisthefunctionofthesensorsprintedonplantleavesbyMITengineer?A.Todetectplants’lackofwaterB.TochangecompositionsofplantsC.Tomakethelifeofplantslonger.D.Totestchemicalsinplants.34.Whatcanweexpectoftheglowingplantsinthefuture?A.Theywillspeedupenergyproduction.B.Theymaytransmitelectricitytothehome.C.Theymighthelpreduceenergyconsumption.D.Theycouldtaketheplaceofpowerplants.35.Whichofthefollowingcanbethebesttitleforthetext?A.Canwegrowmoreglowingplants?B.Howdowelivewithglowingplants?C.Couldglowingplantsreplacelamps?D.Howareglowingplantsmadepollution-free?B篇（2019•全国卷2）MarianBechtelsitsatWestPalmBeach’sBarLouiecounterbyherself,quietlyreadinghere-bookasshewaitsforhersalad.Whatisshereading?Noneofyourbusiness!LunchisBechtel’s“me”time.AndlikemoreAmericans,she’snotalone.Anewreportfound46percentofmealsareeatenaloneinAmerica.Morethanhalf(53percent)havebreakfastaloneandnearlyhalf(46percent)havelunchbythemselves.Onlyatdinnertimeareweeatingtogetheranymore,74percent,accordingtostatisticsfromthereport.“Iprefertogooutandbeout.Alone,buttogether,youknow?”Bechtelsaid,lookingupfromherbook.Bechtel,whoworksindowntownWestPalmBeach,haslunchwithcoworkerssometimes,butlikemanyofus,toooftenworksthroughlunchatherdesk.Alunchtimeescapeallowshertokeepabossfromtappingherontheshoulder.Shereturnstoworkfeelingenergized.“Today,Ijustwantedsometimetomyself,”shesaid.Justtwoseatsover,AndrewMazoleny,alocalvideographer,isfinishinghislunchatthebar.Helikesthathecansitandcheckhisphoneinpeaceorchatupthebarkeeperwithwhomhe’sonafirst-namebasisifhewantstohavealittleinteraction(交流).“Ireflectonhowmyday’sgoneandthinkabouttherestoftheweek,”hesaid.“It’sachanceforself-reflection.Youreturntoworkrechargedandwithaplan.”Thatfreedomtochooseisonereasonmorepeopleliketoeatalone.Therewasatimewhenpeoplemayhavefeltawkwardaboutaskingforatableforone,butthosedaysareover.Now,wehaveoursmartphonestokeepuscompanyatthetable.“Itdoesn’tfeelasaloneasitmayhavebeforealltheadvancesintechnology,”saidLaurieDemeritt,whosecompanyprovidedthestatisticsforthereport.24．Whatarethestatisticsinparagraph2about?A．Foodvariety.B．Eatinghabits.C．Tablemanners.D．Restaurantservice.25．WhydoesBechtelprefertogooutforlunch?A．Tomeetwithhercoworkers.B．Tocatchupwithherwork.C．Tohavesometimeonherown.D．Tocollectdataforherreport.26．WhatdoweknowaboutMazoleny?A．Hemakesvideosforthebar.B．He’sfondofthefoodatthebar.C．Heinterviewscustomersatthebar.D．He’sfamiliarwiththebarkeeper.27．Whatisthetextmainlyabout?A．Thetrendofhavingmealsalone.B．Theimportanceofself-reflection.C．Thestressfromworkingovertime.D．Theadvantageofwirelesstechnology.A篇（（2020·天津高三二模）Addictionisatermthatwehearallthetimebutit’sasurprisinglytrickyconcepttopindown.Orally,wemightsaythingslike:“Oh,IdownloadedthisnewgameonmyphoneandI’mtotallyaddictedtoit.”Butfromaclinicalperspective,wethinkofaddictionasoccurringwhensomeonehasfoundthattheirlifewhetherit’s’theirrelationshipswithfriendsorfamily,theirabilitytoperformtheirjobs,orsomethingelsehasbeenknockedoff-kilter(冲昏头脑)bydesiretoperformbehavior.ProfRobertWest,editor-in-chiefofthejournalAddiction,definesaddiction“apsychologicalconditionthatinvolvesrepeatedpowerfulmotivationtoengageinabehaviorthat’slearntthroughexperience,andthathaseitheractualorpotentialharmfulconsequences”.Underthisdefinition,itispossibletobeaddictedtoanything—notjustsubstances—ifitturnsfromawantforittoaneedforit,anditputsapersonatriskofharm.In2008,Bowden-JonessetuptheNationalProblemGamblingClinic.Todate,thisistheonlyNHS-fundedtreatmentcenterforpeoplewithproblemgambling(赌博).Despiteseeingsomeofthemostseverecasesofgamblingaddictioninthecountryinherclinic,sheiskeentopointoutthatthescaleoftheproblemmightnotbeasextremeassomewouldthink.Despitelotsofpeoplegamblingandthepervasive(遍布的)natureofgamblingadvertising,problemgamblersmakeuplessthanonepercentofthepopulation.Yetshewonderswhetherthereissomethingabouthowmoderntechnologyhasbecomeincreasinglyrisky.“Themoreyouhaveavailability,themoreyouuncovervulnerability,”shesays.Andthere’sconcernamongresearchersfromseveraldifferentcountriesthatonlinegamesandappsaretakinginspirationfromgamblingtokeeppeopleplaying,andpaying.Theseincludewhatareknownas“lootboxes”.Theseareprizes,paidforwithrealmoney,wherethecontentsarenotknownuntilthey’repurchased.Recentresearchhassuggestedpurchaseoftheseprizesislinkedtohigherlevelsofproblematicgamblingbehavior.However,Bowden-Jonespointsoutthattechnologicaladvanceshavealsoimprovedsupportforsomepeoplewithproblematicgambling.Softwarenowexiststoblockgambling-relatedwebsitesacrosspeople’sdevices.Bankingappscanallowapersontodisableanyabilitytospendmoneyongambling,cautiously,byjusttoggling(切换)aswitch.Shebelievesthatthisisabigstepforward-historicallypeoplewereencouragedtohandtheirfinancestotheirpartners.Thiscanputpressureonrelationshipsandthereisstrongevidencetoshowitcanincreasedomesticviolence.It’shardtotelladdictionisontheincrease,partlybecauseasyettherearen’tstandardizedmeasuresbywhichtoassessthingslikeproblematicgaming,andlarge-scalesurveyshavenotbeendone.Butjustbecausewemightseepeoplegluedtotheirphoneswhilethey’reonbusesortrainsorwhilewalkingdownthestreet,itdoesn’tmeanwe’vebecomenationwhoareaddictedtotheInternet.Nonetheless,in2018theWorldHealthOrganizationannouncedthatitwasclassifyinggamingdisorderasamentalhealthcondition,decisiontheybasedonareviewoftheevidenceandafterdiscussionwithexperts.However,someresearchersworrythatthisclassificationwillleadtooverdiagnosisofgamingTheNHSdoesnotoffertreatmentforgamingdisorder,andapilottreatmentclinichasbeendelayed.It’sclearthatweknowverylittleabouthowmanypeoplehavegamingdisorder,andit’slikelythatthevastmajorityofpeoplewhoplaygamesdosowithnoharmtotheirhealthwhatsoever.Havingsaidthat,forthosewhoareworried,itispossibletospotthewarningsignsofpleasurableactivitybecomingcompulsion(强迫力),eitherinyourselforinthosearoundyou.RobertWesthassomefinalwordsofadviceforthoseindividualswhoaretryingtoreducetheirneedforabehavior.“Self-controlismucheasierwhenyousetfixedboundariesthanwhenyouleavetherulesmoreflexible,”heexplains.Bestrictwithyourselfanddon’tallowyourboundariestoslide,thenevenifyoudoslipup,youcangetbackontrack.1．Whatisaddictionaccordingtothefirsttwoparagraphs?A．Itisarepeateddesiretoperformabehavior.B．Itisaphysicalandmentalcondition.C．Itisahabitofdownloadingnewgames.D．Itisthedirectresultofcarelessness.2．WhatdoesBowden-Jonesthinkofgamblingaddiction?A．Itisaffectedbygamblingadvertising.B．Itsscaleissmallandfewerpeopledevelopit.C．ItcanbetreatedinaNHS-fundedcenter.D．Itsseverityisbeyondimaginationofsomepeople.3．WhatdoestheunderlinedsentenceinParagraph4mean?A．Onlineappstakeinspirationfromgambling.B．Moreprizesleadtomoregamblingbehavior.C．Moremoneybringsmoreprizesinlootboxes.D．Toomuchuseoftechnologybringsmorerisk.4．WhatdotechnologicaladvancesinParagraph5indicate?A．Bankingappsarepopularamongbanks.B．Theycanincreasedomesticviolence.C．Theycanbringaboutpositiveresults.D．Softwarecanblockgambling-relatedwebsites.5．Whydoresearchersworryabouttheclassificationofgamingdisorder?A．Playinggamesdonoharmtolotofpeople.B．We’vebecomeanationaddictedtotheinternet.C．Itisn’tscientificandmayleadtowrongdiagnosis.D．Apleasantactivitymaybecomeastrongforce.6．Whatdoesthepassagemainlytalkabout?A．Isaddictionontherise? B．Howaddictionisdefined?C．IsRobertWest’sadvicereasonable? D．WhatisBowdenJones’sresearch?B篇（2020·河北省高三三模）Asoneofthemostimportantlanguagesintheworld,Latinhadhumblebeginnings.ItoriginatedalongtheTiberRiverinItalyandonlyahandfulofpeoplespokethelanguage.Overtime,Latinbecamemorewell-knownasRomansgainedpoliticalpower.ManyfamousliterarytextsandscientificclassificationswerewritteninLatin.EventhoughknowingLatinindicatedapersonwaseducated,accordingtoBritannica,inthe20thcenturyfarfewerpeoplelearnedLatin,leadingittobeclassifiedasa“dead”language.Therearearound7,000livinglanguagesintheworld,but,accordingtoBritannica,“morethanhalfareatriskofdyingoutbytheendofthe21stcentury.”Civilizationsevolveovertimeandsodolanguages.Moreoftenthannot,alanguagediesbecauseeveryonewhospeaksthelanguagedies.Forexample,MarieSmithJones,perhapsthelastnativespeakeroftheAlaskanEyaklanguage,diedattheageof89in2008,andsodidthelanguage.Now,fewerandfewerpeoplespeakLatin,whichraisespublic’sawarenessaboutitsprotection.Actually,therearemanyotherreasonsastowhyLatinshouldbeprotectedortaught.“Itisawindowintoafascinatingancientcivilization,andstudyinganancientcivilizationteachesustorespectdifferentpointsofviewandunfamiliarculturalpractices,”saysKathleenColeman,JamesLoebProfessorofHarvardUniversity.Sinceitisn’tusedinordinaryconversations,therearealotofdifficultiesthatarisefromteachingLatin.“Teachinga‘dead’languageisdifferentfromteachingotherlanguages,”explainsColeman,“becausetherearenonativespeakerstoshowushowitsoundsoranswerquestionsaboutthemeaningofwordsorexplainidioms.Thoughit’shard,fortunately,westillcanfindtheanswerstoourquestionsfromthebrokenevidenceavailableinwrittentexts.”7．WhatcanwelearnaboutLatinfromParagraph1?A．Mostpeopledidn’tlearnLatininthe20thcentury.B．OnlyeducatedpeoplelearnedLatininthepast.C．Latinwasnotfavoredbyscientistsandwriters.D．Latinwaswell-knownsinceitsbirth.8．TheauthormentionsMarieSmithJonesinParagraph2toshow________.A．howalanguagediesB．whatadeadlanguageisC．howalanguageisprotectedD．whoisthelastAlaskanEyakspeaker9．WhyshouldpeoplelearnLatinaccordingtoColeman?A．Toshowunfamiliarpractices. B．Torespectothers’opinions.C．Toprotecta“dead”language. D．Tolearnaboutanancientsociety.10．Whatwilltheauthorprobablydiscussinthefollowingparagraph?A．Thelearningmethods. B．ThedevelopmentofLatin.C．Thelearningmaterials. D．ThedifficultiesinlearningLatin.考点练【答案】28.C29.D30.A31.B【解析】这是一篇说明文。短文介绍了竞走相比跑步有诸多的优势，但是之前受过伤的人，要想从事这样运动要谨慎，最好咨询专家的建议。【28题详解】细节理解题。根据第二段“Butthesport’srulesrequirethataracewalker’skneesstaystraightthroughmostofthelegswingandonefootremainincontactwiththegroundatalltimes.”可知，但这项运动的规则要求竞走者的膝盖在摆动腿的大部分时间保持伸直，一只脚始终与地面接触。由此可知，竞走运动员是需要具备某些条件的运动员是因为运动员需要遵守特殊的规则。故选C项。【29题详解】细节理解题。根据最后一段“Asaresult,shesays,someoftheinjuriesassociatedwithrunning,suchasrunner’sknee,areuncommonamongracewalkers.”可知，一些与跑步有关的损伤，比如跑步者的膝盖，在竞走者中并不常见。由此可知，竞走与跑步相比的优势是不太可能导致膝盖受伤。故选D项。30题详解】细节理解题。根据最后一段Dr.Norberg说的话“Infact,anyonewishingtotryracewalkingshouldprobablyfirstconsultacoachorexperiencedracertolearnpropertechnique(事实上，任何想尝试竞走的人都应该首先咨询教练或有经验的竞走运动员，学习适当的技巧。)”可知，Dr.Norberg建议想尝试竞走的人征询专家的建议。故选A项。【31题详解】推理判断题。根据第一段“Racewalkingsharesmanyfitnessbenefitswithrunning,researchshows,whilemostlikelycontributingtofewerinjuries.Itdoes,however,haveitsownproblem.”可知，研究表明，竞走和跑步一样有很多健身益处，而且它还很少导致受伤。不过，它也有自己的问题。由此判断出作者对于竞走的态度是客观的。故选B项。拓展练A篇【答案】32.D33.A34.C35.C【解析】这是一篇说明文。文章主要说明了绿色植物对人们很有好处，因此麻省理工学院的工程师开发了一种发光植物。文章介绍了他们发明这种植物的过程，以及这种植物的一些优势，指出在未来发光植物有可能取代路灯，达到节约能源的作用。【32题详解】主旨大意题。根据第一段中AstudyconductedinYoungstown,Ohio,forexample,discoveredthatgreenerareasofthecityexperiencedlesscrime.Inanother,employeeswereshowntobe15%moreproductivewhentheirworkplacesweredecoratedwithhouseplants.可知例如，在俄亥俄州扬斯敦进行的一项研究发现，城市绿化较好的地区犯罪率较低。在另一项研究中，当员工的工作场所被室内植物装饰时，他们的工作效率会提高15%。由此可知，第一段的主旨是关于绿色植物的益处。故选D。【33题详解】细节理解题。根据第二段中Theseincludeplantsthathavesensorsprintedontheirleavestoshowwhenthey'reshortofwaterandaplantthatcandetectharmfulchemicalsingroundwater.可知这就包括叶子上印有传感器来显示植物缺水的情况的植物，还有一种植物可以检测到地下水中的有害化学物质。由此可知，麻省理工学院工程师植物叶片上印上传感器的作用是检测植物缺水的情况。故选A。【34题详解】细节理解题。根据最后一段中Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.可知发光的植物可以缩短这段距离，从而帮助节约能源。由此可知，这种发光的植物在未来可能有助于减少能源消耗。故选C。【35题详解】主旨大意题。根据最后一段中Lightingaccountsforabout7%ofthetotalelectricityconsumedintheUS.Sincelightingisoftenfarremovedfromthepowersource-suchasthedistancefromapowerplanttostreetlampsonaremotehighway-alotofenergyislostduringtransmission.Glowingplantscouldreducethisdistanceandthereforehelpsaveenergy.可知照明约占美国总耗电量的7%。由于照明通常远离电源，例如从发电厂到偏僻公路上路灯的距离，在传输过程中会损失大量能源。发光的植物可以缩短这段距离，从而帮助节约能源。结合文章主要说明了绿色植物对人们很有好处，因此麻省理工学院的工程师开发了一种发光植物，文章介绍了他们发明这种植物的过程，以及这种植物的一些优势，指出在未来发光植物有可能取代路灯，达到节约能源的作用。由此可知，C选项“发光的植物能取代路灯吗？”最符合文章标题。故选C。B篇【答案】24．B25．C26．D27．A【解析】本文是一篇说明文。据一份报告显示，越来越多的美国人喜欢独自用餐，并通过两个实例加以说明，文章总结了人们喜欢独自用餐的原因。24．推理判断题。根据第二段可知，在美国，约有46%的人们独自用餐，53%的人们独自吃早餐，46%的人们独自吃午餐，只有74%的人们晚餐不是独自享用，故可知本段的数据是关于用餐习惯，故选B。25．细节理解题。根据第三段Alunchtimeescapeallowshertokeepabossfromtappingherontheshoulder.Today,Ijustwantedsometimetomyself.可知，Bechtel一个人吃午饭可以让她逃离老板的关注，给自己留一些自由时间，故选C。26．推理判断题。根据第四段helikesthathecansitandcheckhisphoneinpeaceorchatupthebarkeeperwithwhomhe’sonafirst-namebasisifhewantstohavealittleinteraction.可知，Mazoleny喜欢这样的气氛，因为可以坐在那里安静查看手机信息，或者想聊天了，可以直呼吧台服务员名字和他聊天，故可知，他与服务员很熟悉，可以直呼对方名字，故选D。27．主旨大意题。本文通过一份调查结果显示美国人喜欢独自用餐的趋势，并总结了人们选择独自用餐的原因，故选A。模拟练A篇1．A2．B3．D4．C5．C6．B【解析】这是一篇说明文，围绕上瘾（addiction）这一术语展开，介绍了赌博及电子游戏的成瘾，并探讨了电子科技的发展对这两种成瘾人群的影响，以及这一心理学领域目前存在的诸多热点问题。文中各路学者专家观点激烈交锋，具有较强的学术性。1．细节理解题。根据第一、二段的内容，并结合第二段开头ProfRobertWest,editor-in-chiefofthejournalAddiction,definesaddiction“apsychologicalconditionthatinvolvesrepeatedpowerfulmotivationtoengageinabehaviorthat’slearntthroughexperience,andthathaseitheractualorpotentialharmfulconsequences”.可知，根据权威教授的定义，上瘾是一种心理上的状态，它涉及的是一种反复多次的强大驱动力，想要去做某件事，实施某种行为，因而A“是一种反复多次想要实施某种行为的欲望”符合原文内容，对于干扰项B，让人上瘾的可以是某种物质，也可以是某个行为，某种欲望，但上瘾本身是一种心理上（精神层面）的状态，应排除B，综上本题选A。2．细节理解题。根据原文第三段“Sheiskeentopointoutthatthescaleoftheproblemmightnotbeasextremeassomewouldthink.Despitelotsofpeoplegamblingandthepervasive(遍布的)natureofgamblingadvertising,problemgamblersmakeuplessthanonepercentofthepopulation.”并结合该段内容可知，虽然她见过许多赌博上瘾的极端案例，但她敏锐地指出，实际上问题并没有有些人想象的那么严重，尽管很多人赌博，广告也满天飞，但实际上真出问题，成瘾的占百分之一还不到，B选项“范围小，进一步发展成瘾的就更少了”符合原文，干扰项D实际为“严重性超乎了有些人的想象”，刚好与原文内容相反，综上应选B。3．句意猜测题。对于划线句子（一位学者的话），直译结果为“你享受了越多的便利（实用性），就会揭露你越多的弱点。”结合上一句“Yetshewonderswhetherthereissomethingabouthowmoderntechnologyhasbecomeincreasinglyrisky.”可知说这句话（划线句子）的学者在担心的是现代电子科技给人带来的风险逐渐变高了，同时结合该段剩下内容，指出许多在线游戏和APP正从赌博中汲取灵感，研究利用人们的心理，让人们欲罢不能、沉迷其中，这是另一种形式的“上瘾”，故划线句