Let paralyzed patients walk again让瘫痪的病人重新行走

1、PAGE PAGE - 4 -Letparalyzedpatientswalkagain让瘫痪的病人重新行走薛俊刚三名癱痪多年的病人又能够重新走路了，这要归功于植入他们脊柱的神奇的电子装置。1AmotorcycleaccidentseveralyearsagoleftMichelRoccatiparalyzedfromthewaistdown.Now，yearsafterhisinjury，hehasregainedtheabilitytowalkthankstoelectrodes（电极）implantedonhisspine.“Iamfree，”Roccatisays.“Icanwalkw

2、hereverIwantto.”2Toperformanactionlikewalking，thebrainsendsamessagetoourmusclesintheformofelectricitythattellsthelegstomove.Butafteracompletespinalcord（脊髓）injury，thebrainssignalscantreachthenerves，resultinginparalysis.Byusingelectricalstimulationfromelectrodes，doctorsareabletosendsimilarelectricalsi

3、gnalstothebodythatthebrainwouldnormallydo，like“sit”，“stand”，or“walk”.3Theflexibleelectrodesarecontrolledbythetouchofatabletscreen.Thepatientordoctorcanthencontrolpulsesthatactivatemusclesinthelegs.Dependingontheelectrodestimulationpattern，thesignalstranslatetospecificmuscleactivities，likegettingupfr

4、omachairorridingabike.4Roccatiisoneofthreemenwhoparticipatedinthestudy.Thethreeparticipantswereages29，32，and41，andeachwasinjuredinmotorcycleaccidentsseveralyearsago.Allthreemenhadsixcentimetersofhealthyspinalcordbelowtheirinjuryandhadnomovementorsenseintheirlegsbeforetheoperation.Allthreepatientswer

5、eabletostand，walk，swimandcontroltheirmovementsjustonedayaftertheirimplantswereactivated.5Afterthedeviceswereimplanted，thethreestudyparticipantsweregiventraininginhowtousethedevices，whichtookawhiletogetusedto.Theycouldtakeasmanyas300stepsindependently，withsomesupport，withindaysofreceivingtheirimplant

6、s.Aftergettingcomfortablewiththedevicesinthelab，thepatientsprogressedtousingthedevicesintheirdailylives.6Next，researcherswilltestthestimulationdevicesinalargertrialwithdifferentpatientswithmorerecentinjuries.Thereissomeevidenceinanimalstudiesthatearlyelectricalstimulationmayhelpthespinalcordhealafte

7、rinjuries，whichcouldhelppatientsregainmoresense.Thenextstepistostartearlier，justaftertheinjury，whenthepotentialforrecoveryismuchlarger.ChoosethebestanswersaccordingtothetextDetail1.WhatwasMichelslifelikebeforeimplantingelectrodes？A.Hecouldntmoveatall.B.Hehadnosensebelowhiswaist.C.Hehadhisspinecomple

8、telyruined.D.Hegotinjuredbyanelectricshock.Detail2.Whatsthedecisivefactortoensurepeoplesmovements？A.Thecontrolonpulses.B.Thepowerofthebrain.C.Thetouchofatabletscreen.D.Theelectrodestimulationpattern.Inference3.Whyarethethreeparticipantsinparagraph4mentioned？A.Totellthepopularityofthetech.B.Tomakecom

9、parisonsamongpatients.C.Toshowthesuccessoftheexperiment.D.Togiveexamplesofdifferentmovements.Gist4.Whatisthetextmainlyabout？A.Auniquetreatment.B.Adisabledpatient.C.Ascientificreport.D.Amedicalachievement.AnalyzethedifficultsentenceinthetextDependingontheelectrodestimulationpattern，thesignalstranslatetospecificmuscleactivities，likegettingupfromachairorridingabike.根據电极刺激模式的不同，信号会转化为特定的肌肉活动，比如从椅子上站起来或骑自行车。【点石成金】本句中，Dependingontheelectrodestimulationpattern为方式状语，和逻辑主语thesignals之间构成逻辑上的主谓关系;like