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名校2023版高考英语阅读理解精读含答案(2022淄博二模卷)OnlinelearningisatermusedtodescribedistancecoursesthatareofferedovertheInternet.Thecoursescoverawiderangeofsubjectsandaudiences.Thiseducationalmethodisgrowingirpopularityasaneconomicalmethodofprovidingaccesstoeducationforalargepopulation.Therearetwotypesofonlinecourseaccess:openandrestricted.OpenaccessallowsactuallyanyonewithanInternetusertoviewthecoursematerial.Thistypeofonlinelearningdoesnotrequireinteractionwithaninstructor.Thematerialcoveredcanrangefromveryspecificinstructionstouniversitylevelcourses.Thisinitiativeremovesthebarrierstoadvancedknowledgeandallowsanyonewiththeinteresttolearn.Theothertypeofonlinecoursesarerestrictedaccesscourses.Restrictedaccessisusedtolimittheclasstoregisteredstudents.Thesecoursesofferinstructorinteractionandaretypicallythemethodusedbycoursesthatrequiregradesupongraduation.Itismoreefficientforboththeeducatorandthestudenttoaccesscoursematerialsonline.Fromtheeducatoraspectthecourselecturescanberecordedonceandreused.Thisgreatlyreducedthestafftimeandcosts.Meanwhileonlinecoursesallowstudentstocompletecourseworkfromawiderangeoflocationsandremovethetimerestrictiontoaccesscourselectures.Studentsarenolongerrequiredtotraveltotheclassandmanycoursematerialsareincludedinthefee.Thematerialforonlinecourseshasbeencarefullyreviewedandapprovedbeforethecourseisoffered.Manyintroductionandcoursesdonotchangeasthematerialisfixed.Asaresultthecoursesarestableandcanbereusedssneeded.Technologycontinuestoexpandtomeettheneedsofonlinestudents.Thesetoolsincludemobileaudioandvideoviewersimprovedonlineinteractivetestsandtoolandcoursemanagementsoftware.Thecontinueddevelopmentinthisareawillfurtherenhancethequalityofonlinecoursesandencouragemorepeopletofurthertheireducation.WhyisonlinelearningwinningmorerecognitionA.Itiscost-effective.Itisfreetoaccess.Noteacherisrequired.Educationisgettingmoreimportant.WhatdowelearnaboutrestrictedaccessLearnersarerequiredtoregister.Learnerscanlearnwithoutevaluation.Itisintendedforadvancedlearnersonly.Ithasnointeractionwithaninstructor.Whatisparagraph3mainlyaboutonlinecoursesTheparticipants.Thetimerestrictions.Theadvantages.Theever-changingmaterials.HowdoestheauthorfeelaboutthefutureofonlinelearningA.Challenging.B.Critical.C.Worrying.D.Promising.AACDResearcherssayanewelectricaldeviceplacedinthreeparalyzedpatientshashelpedthemwalkagain.Thelowerbodiesofthethreepatientswereleftparalyzedaftertheysufferedspinal(脊柱的)cordinjuries.Butadeviceimplantedinthespinalcordwasabletosendelectricalsignalstothemusclestopermitthemtostandwalkandexercise.Scientistshavediscoveredthatneurons—whichreceiveandsendsignalsformusclemovements-oftenstillworkininjuredpatientswithseriousspinalcordinjuries.Howeverpastresearchintospinalcordinjurieshascenteredonthestimulationofneurons.NowinthelatestexperimentledbyGregoireCourtineandJocelyneBlochoftheSwissFederalInstituteofTechnologyinLausannethreeparalyzedmenwereimplantedanewelectricaldevicedesignedtocopyanactionofthebraininwhichitsendssignalstothespinalcordthatresultinmusclemovement.Whenthespinalcordreceivesthebrainsignalsitstimulatesacollectionofnervecellsthatcanactivatedifferentmuscles.Theresearchersreportedthatallthreepatientswhogotthespinalcordimplantswereabletotaketheirfirststepswithinanhourafterreceivingthem.Overthenextsixmonthsthepatientsregainedtheabilitytotakepartinmoreadvancedwalkingactivitiesthestudyfound.Theywerealsoabletoridebicyclesandswimincommunitysettings.UnlikeotherattemptstohelpparalyzedpatientswalkbystimulatingnervesthroughthebackofthespineCourtinesaidthathisteamredesignedthedevicessosignalswouldenterthespinefromthesides.Thismethodpermitsmoredirecttargetingandactivationofspinalcordareashesaid.TheteamthendevelopedartificialintelligenceAIsystemslinkedtothedevice.TheAIcontrolselectrodesonthedevicetosendsignalstostimulateindividualnervesthatcontrolmusclesneededforwalkingandotheractivities.Howeverbecausethepatientsmuscleswereweakfromnotbeingusedtheyneededhelpwithsupportingtheirweighttheresearcherssaid.Italsotooksometimeforthemtolearntoworkwiththetechnology.StillzBlochsaid“Themoretheytrainthemoretheystartliftingtheirmusclesthemorefluiditbecomes.”Whatcanbeinferredfromparagraph2Neuronsinparalyzedpatientscanztwork.Paralyzedmenrecoveredusinganewdevice.Thenewdevicecanimitatethebraintosendsignals.Stimulatingtheneuronsisthefocusofthelatestresearch.HowdoesthenewdevicestimulatethespinalcordareasmoredirectlyByusingtheAIsystem.Bysendingthesignalstothebrain.Bymakingsignalsenterthespinefromthesides.Bystimulatingnervesthroughthebackofthespine.WhichcanbestdescribeBlochsideainthelastparagraphPracticemakesperfect.Itshardtopleaseall.Everygardenhasitsweeds.D.Putthecartbeforethehorse.WhatisthepurposeofthistextTointroducethefindingsofarecentresearch.Toreporttheconsequenceofspinalcordinjuries.Torecommendatreatmentforparalyzedpatients.Tocomparearecentresearchwithotherpreviousresearches.
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