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1、精品文档中学生优秀英语演讲稿:我的老师 ladiesandgentlemen, ihavehadalotofteachersinmyschoolwhohavegivenmemuchhelpinmystudy.fortheirhelpiwillneverforgetthem.buttodayiamgoingtotalkaboutaspecialteacherofmine.thisteacherisnotahumanbeinganditsnameis“computer”.ithasbeenteachingmealotof
2、knowledgeandiappreciateitverymuch. withthedevelopmentofmodernscienceandtechnology,computersarewidelyusedineveryteritories(1)includingeducation.howcanacomputerbemyteacher?howdoesacomputerteachme?multimedia(多媒体)helpsalotinthisaspectinrecentyears,andcomputer-based
3、training(cbt)hasbecomeapopulareducationalmedium(手段).evenbeforethemultimediacome(2)up,manydifferentlearningsystemsappeared,usingthecomponentsandtechniqueswenowassociatewiththeterm“multimedia”.multimediacomponents,suchasgraphics(动画),animations,soundandvideo,maket
4、helearningprocesseasierthroughvisualization.animationscanpresentmanycomplex2016全新精品资料-全新公文范文-全程指导写作–独家原创3/3精品文档subjectsdynamically,buthumanteacherscannotdothisonblackboards.multimediamakesourstudymorelivelyandinteresting.forexample,acd-romdisknamed“encartaencyc
5、lopedia”contains650mbinformationincludingimages,graphics,musicclips,videoclips,animations,texts,hotwords,anddatabasesearchfunctions.fieldsinvolvedincludesphysicalsciences,performancearts,socialsciences,politics,military,educationandsoon.whenpressingabutton,ican
6、hearamericanpresidentclinton’sspeechclip.imayenjoyplayingallkindsofmusicalinstrumentsintheworld.icanalsoseetheanimationofmanyphysicalphenomena.thismakesphysicalconcepttobeunderstooddeeply(3).theaudiofeaturesofmultimediacangreatlyhelpmelearning(4)foreignlanguage
7、s.withitsspeechoutputcapabilities,i’mnolongerdependentonaninstructorforproperpronunciation. howcaniinteractwithacomputer?therearemanyways,includingkeyboard,mousepointer,andtouchscreen.ioftenuseakeyboard.whenipressrightkeys,icanseeandhearwhateveriwant.informatio
8、nworldisatmyfingertip.iwishthattruespeechinput-output2016全新精品资料-全新公文范文-全程指导写作–独家原创3/3精品文档systemwouldbeinventedoneday. asteachers,computershavealotofvirtues:theyarepositive,t