此资料由网络收集而来，如有侵权请告知上传者立即删除。资料共分享，我们负责传递知识。2020科技演讲稿(4篇)简介：科技改变世界，但它更为盲人的生活带来前所未有的便利。联合国残疾人权利委员会主席ronmccallum自幼失明。1987年，他拥有了第一台盲人专用电脑。由于有了电脑，有声读物(talkingbooks)和志愿者们的帮助，他成为了一个贪婪的阅读者，同时也成为了一名律师和学者。wheniwasaboutthreeorfouryearsold,iremembermymumreadingastorytomeandmytwobigbrothers,andirememberputtingupmyhandstofeelthepageofthebook,tofeelthepicturetheywerediscussing.andmymumsaid,"darling,rememberthatyoucan'tseeandyoucan'tfeelthepictureandyoucan'tfeeltheprintonthepage."andithoughttomyself,"butthat'swhatiwanttodo.ilovestories.iwanttoread."littledidiknowthatiwouldbepartofatechnologicalrevolutionthatwouldmakethatdreamcometrue.iwasbornprematurebyabout10weeks,whichresultedinmyblindness,some64yearsago.theconditionisknownasretrolentalfibroplasia,andit'snowveryrareinthedevelopedworld.littledidiknow,lyingcurledupinmyprimbabyhumidicribin1948thati'dbeenbornattherightplaceandtherighttime,thatiwasinacountrywhereicouldparticipateinthetechnologicalrevolution.thereare37milliontotallyblindpeopleonourplanet,butthoseofuswho'vesharedinthetechnologicalchangesmainlycomefromnorthamerica,europe,japanandotherdevelopedpartsoftheworld.computershavechangedthelivesofusallinthisroomandaroundtheworld,butithinkthey'vechangedthelivesofweblindpeoplemorethananyothergroup.andsoiwanttotellyouabouttheinteractionbetweencomputer-basedadaptivetechnologyandthemanyvolunteerswhohelpedmeovertheyearstobecomethepersoniamtoday.it'saninteractionbetweenvolunteers,passionateinventorsandtechnology,andit'sastorythatmanyotherblindpeoplecouldtell.butletmetellyouabitaboutittoday.wheniwasfive,iwenttoschoolandilearnedbraille.it'saningenioussystemofsixdotsthatarepunchedintopaper,andicanfeelthemwithmyfingers.infact,ithinkthey'reputtingupmygradesixreport.idon'tknowwherejulianmorrowgotthatfrom.(laughter)iwasprettygoodinreading,butreligionandmusicalappreciationneededmorework.(laughter)whenyouleavetheoperahouse,you'llfindthere'sbraillesignageinthel