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文体分类练(三)说明文之新发明/新产品类Passage1(2024宁夏银川二模)主题:发明创造词数:324难度:★★★☆☆3MandDiscoveryEducationannouncedSeanJiangfromGilmanSchoolasoneofthetoptenfinalistsfromacrossthenationforthe20233MYoungScientistChallenge.It’sacompetitionthatencouragesstudentstoidentifyaneverydayproblemandsubmitavideoshowingthesciencebehindthesolutionheorshecameupwith.14-year-oldJiangdecidedtohelpthosewhocan’tsee.Blindpeoplehadahardtimenavigating(导航)objectsthataremediumtofarrange.SoJiangwantedtodesignsomethingtogivethemaheads-uponobstaclesthatmaybeincoming.Jiang’sinspirationcamefromthepowersofthehearingsystem.“Ilearnedinschoolthatbatsandwhalesareabletouseecholocation(回声定位)tohelpthemnavigateandjustusetheirsenseofhearingandIalsosawonYouTubesomeveryskilledblindpeoplethatuseecholocationtohelpthemwalk,”saidJiang.Jiangstartedwithavirtualrealitysettingandthenmadeitareality.Hiscreationusesadepthcamerathatcandetecthowcloseobjectsare,thusgivingenoughtimetododgetheobstacles.Whenablindiswalkingwiththedevice,thesensorofthedepthcameragatherstheinformationregardingtheobstacles’positionanddistance.ThentheAIsysteminitwillturnthedistancedataintomusicalsoundguidance.Thiscouldsignificantlyincreasethewalkingspeedofablindpersonaswellasdecreasethenumberofobstaclestheyhit.Someothersimilarprogramswerealrightatfindingobjectsthatwereincloserange,butJiangstillwantedtheblindtoexperiencetheworldevenfullersotheywereabletoseestuffthatwasmuchfurtherawaythantheircircleofreach.InOctober,thetoptenfinalistswillcompeteinpersoninMinneapolisforthetitleof“America’sTopYoungScientist”anda$25,000prize.【语篇导读】本文是一篇新闻报道。文章主要报道了一个青少年SeanJiang的发明创造,他发明的设备能用声音帮助盲人顺利行走。1.WhatcanwelearnaboutJiangfromthefirsttwoparagraphs?A.Hewasthechampionofthe20233Mevent.B.Heinventedtechnologytoremoveroadobstacles.C.Hesoughttoassisttheblindinwalkingsmoothly.D.Hedevelopedanewnavigationappforhisschool.答案C解析推理判断题。根据第二段内容可知,Jiang设法帮助盲人顺利行走。2.WhydidJiangmention“echolocation”?A.Toshowthedevelopmentoftechnology.B.Topresentthedifficultiestheblindface.C.Tostressthesignificanceofhearing.D.Toexplaintheinspirationofhisinvention.答案D解析推理判断题。根据第三段可知,Jiang提到“回声定位”是为了解释他的发明灵感。3.Whatdoestheunderlinedword“dodge”meaninparagraph4?A.Avoid. B.Encounter.C.Challenge. D.Remove.答案A解析词句猜测题。画线词下文“Whenablindiswalkingwiththedevice,thesensorofthedepthcameragatherstheinformationregardingtheobstacles’positionanddistance.ThentheAIsysteminitwillturnthedistancedataintomusicalsoundguidance.Thiscouldsignificantlyincreasethewalkingspeedofablindpersonaswellasdecreasethenumberofobstaclestheyhit.”说明该设备能够帮助盲人避开障碍物,从而推知画线词意思是“避开”。4.Whatisthetextmainlyabout?A.3Mfacilitiesintendedfortheblind.B.Ateenusingsoundtohelptheblind.C.Aninventiontocurevisionproblems.D.Acompetitiontoimprovetheblind’slife.答案B解析主旨大意题。通读全文可知,本文主要介绍了一个青少年SeanJiang的发明创造,他发明的设备能用声音帮助盲人顺利行走。Passage2(2024广东湛江二模)主题:机器人传感器词数:357难度:★★★☆☆ResearchershavedevelopedaroboticsensorthatcombinesartificialintelligencetechniquestoreadBraille(盲文)atspeedsroughlydoublethatofmosthumanreaders.Theresearchteam,fromtheUniversityofCambridge,usedmachinelearningalgorithms(算法)toteacharoboticsensortoquicklyslideoverlinesofBrailletext.Theroboticsensortheresearchersusedhasacamerainits“fingertip”,andreadsbyusingacombinationoftheinformationfromthecameraandthesensors.“Thisisahardproblemforroboticistsasthere’salotofimageprocessingthatneedstobedonetoremovemotionblur(模糊),whichistime-andenergy-consuming,”saidParthPotdarfromCambridge’sDepartmentofEngineering.“ThereareexistingroboticBraillereaders,buttheyonlyreadoneletteratatime,whichisnothowhumansread,”saidPotdar.“ExistingroboticBraillereadersworkinastaticway:Theytouchoneletterpattern,readit,pullupfromthesurface,moveover,lowerontothenextletterpattern,andsoon.Wewantsomethingthat’smorerealisticandfarmoreefficient.”Theteamdevelopedmachinelearningalgorithmssotheroboticreaderwouldbeableto“deblur”theimagesbeforethesensorattemptedtorecognisetheletters.TheytrainedthealgorithmsonasetofsharpimagesofBraillewithfakeblurapplied.Afterthealgorithmshadlearnedtodeblurtheletters,theyusedacomputervisionmodeltodetectandclassifyeachcharacter.Oncethealgorithmswereincorporated,theresearcherstestedtheirreaderbyslidingitquicklyalongrowsofBraillecharacters.TheroboticBraillereadercouldread315wordsperminutewith87%accuracy,whichistwiceasfastandaboutasaccurateashumanBraillereader.“Braillereadingspeedisagreatwaytomeasurethedynamicperformanceoftactile(能触知的)sensingsystems,soourfindingscouldbeapplicablebeyondBraille,forapplicationslikedetectingsurfacetexturesorslippageinroboticmanipulation,”saidPotdar.Inthefuture,theresearchersarehopingtoscalethetechnologytothesizeofahumanoidhand.【语篇导读】本文是一篇说明文。剑桥大学的研究团队开发了一种机器人传感器,该传感器结合了人工智能技术,能以近似人类读者两倍的速度读取盲文。5.Whatisdifficultforroboticiststodealwithinthereadingprocess?A.Riddingofmotionblur.B.Teachingarobottolearn.C.Processingroboticsensors.D.Fixingacameraonthefingertip.答案A解析推理判断题。根据第二段最后一句“‘Thisisahardproblemforroboticistsasthere’salotofimageprocessingthatneedstobedonetoremovemotionblur,whichistime-andenergy-consuming,’saidParthPotdarfromCambridge’sDepartmentofEngineering.”可知,机器人专家在阅读过程中很难消除动态模糊。6.Whatdoestheunderlinedword“static”inparagraph3mean?A.Still. B.Fast.C.Clever. D.Lazy.答案A解析词义猜测题。根据第三段中的“‘ThereareexistingroboticBraillereaders,buttheyonlyreadoneletteratatime,whichisnothowhumansread,’saidPotdar.”以及画线词下文“Theytouchoneletterpattern,readit,pullupfromthesurface,moveover,lowerontothenextletterpattern,andsoon.”可知,现有的机器人盲文阅读器是以静态的方式工作的。7.WhatdidPotdarwanttoexpressinparagraph6?A.Thegoodperformanceoftherobotsensor.B.Thepromisingfutureoftheirresearchresults.C.Thefactorsinmakingthetactilesensingsystems.D.Thewaytoensuretheaccuracyofthetechnology.答案B解析推理判断题。根据第六段内容可知,他们的研究结果可以应用到其他方面。由此可推断,该研究结果是有前景的。8.Whichcanbethebesttitleforthetext?A.TechnologytobescaledtothesizeofahumanoidhandB.RobotstrainedtoreadBrailleattwicethespeedofhumansC.AgreatwaytomeasuretheperformanceofsensingsystemsD.MachinelearningalgorithmsexpectedtochangeBraillewriting答案B解析主旨大意题。本文主要介绍了剑桥大学研究团队开发的机器人传感器,该传感器结合了人工智能技术,能以近似人类读者两倍的速度读取盲文。B项“RobotstrainedtoreadBrailleattwicethespeedofhumans(机器人被训练以两倍于人类的速度阅读盲文)”最能概括本文主旨。Passage3(2024湖南张家界二模)主题:预测阅读困难的新工具词数:306难度:★★★☆☆Astudyexpandspositiveevidenceforanewscreeningtoolthatdirectlyengagespreschoolchildrenduringclinicvisitstoassesstheirearlyliteracyskills.Thetool,calledTheReadingHouse(TRH),isthefirstofitskind.Ithasthepotentialtoidentifyreadingdifficultiesasearlyaspossible,accordingtoresearchersatCincinnatiChildren’sHospitalMedicalCenter.TRHisanassessmentdevelopedbyJohnHuttonandhisteamforkidsagedfrom3to5.Screeningtakesjustaboutfiveminutesandassessesperformancelevelsforkidsagedfrom3to5.Itaddressesasignificantgapinwaystoscreenearlyliteracyskillsefficientlyanddirectly.Thetool,whichisfunforkids,couldbeusedinplaceslikeprimarycareorpreschoolsettings.Thescreeningmeasurescoreskillstypicallyappearinginthepreschoolagerange,includingvocabulary,rhyming,alphabetknowledgeandprintconcepts.Allareskillspredictiveofreadingsuccessandoftenassociatedwithreadingdifficulties.Thestudyinvolved70healthychildren—34boysand36girls—between3and5yearsoldfromvarioussocioeconomicbackground.Thechildrencompletedstandardizedtestsofimportantliteracyskills:vocabulary,rhymingaridrapidautomatizednaming.Fifty-twoofthesechildrenalsosuccessfullycompletedMRI(磁共振成像),includingthemeasurementofthegraymattersurfaceoftheirbrains.Thethickercortex(皮质),particularlyinleft-sidedareassupportinglanguageandreading,hasbeenassociatedwithhigherskillsthatarepredictiveofreadingoutcomes.Manychildrenarriveatkindergartenunpreparedtolearntoread,especiallythosefromminoritiesandeconomicallypoorbackgrounds—estimatedatover50%ofchildrenfromdisadvantagedbackgroundsintheU.S.andover25%overall.“Byscreeningearlyduringclinicvisits,wecantargeteffectiveinterventionsthathelpthesechildrenbetterprepareforkindergartenandimprovereadingoutcomes—literally,snappingtheirbrainstoread,”saidHutton.【语篇导读】本文是一篇说明文。文章主要介绍了一些研究人员研发出了一个新的工具,可以帮助预测3—5岁的小孩是否会有阅读困难。9.WhatmightbethepurposeofcreatingTRH?A.Toidentifythebestreadingappsforkids.B.Todeveloppreschoolkids’literacyskills.C.Todiscoverkids’readingproblemsearly.D.Tostudykeyfactorsinkids’development.答案C解析细节理解题。根据第一段的“Thetool,calledTheReadingHouse(TRH),isthefirstofitskind.Ithasthepotentialtoidentifyreadingdifficultiesasearlyaspossible,accordingtoresearchersatCincinnatiChildren’sHospitalMedicalCenter.”可知,该工具可以确认学龄前儿童是否会
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