关于科学的英语演讲稿.doc

关于科学的英语演讲稿 thepresenceofstudents,ladiesandteachers,everyone!iwaspreparedintervalsofcloudtoday,inhonorhereentitledtechnologyandfuturespeech,iamveryproudofboth,butsomeunease.inrecentyears,wehaveseenourgreatmotherland,thecauseoftherapiddevelopmentoftechnology,whichallowmetoachineseifeelveryproud.rememberthatlongago,cellphoneusealmosttheonlyone,whichiscalled,butafewyearsago,cellphoneshasundergonegreatchanges,notonlylookmorebeautiful,butalsousemore,youcanusethephonestotakepictures,meetings,inter,textmessages,etc.aseriesofthingsthatitheirlifemoreconvenient,soiammoreawareofthestrengthofthetechnology,butiamjustafledglingsstudents,technologyasthewordalsoawareofthelimited,iamunabletousesomeverydifficulttheorytoelaboratetechnologyxuanji,norighttoworkontheireldersicanpromiseofthetechnologyblueprint.butiamwillingtouseastudentsperspectivetotheimaginetechnologyandthefuture. fromgeicengineeringisaliveprincesdream,nano-technology-notwashingyourclothing,promises;fromartificialintelligencewillgiveyouacuterobotdogwarm,transgenictechnologyletpeoplegrowmouseearswonders.thenewtechnologyinthebirthofanewtechnologythatwillletpeoplewildwithjoy,becausethesenewtechnologiesisgraduallyimprovingourlives,henearterm,chinapleteditsfirstsarsvirusgenomesequencing,sarsisnowtheworldslargestrecognizedthedangersofthedisease,butwhynotothercountriespletedfirst,andwejustpletedthecountries?verysi-mp-le,thisillustratesthatourcountrybackwardthanothers,worsethanothers,welookatthepast,hadjuststartedacountrysreformandopeninguptothecurrentlevelofscienceandtechnologyhasleadalargecountry,ourmotherlandexperiencedanumberofupsanddowns,howmanydifficultiesandbumpyhowever,westillbackallofthemotherland,themotherlandbecausewefirmlybelievethat-notonlytechnologicalchangedestiny,canchangethefuture. forourgeneration,thegeneralfeelingofthemunityisastrongsenseofpetition,learningafootdown.scienceknowledgeisthefocusofourattention,alberteinstein,andstephenhawking,billgatesisthestarwehaveinmind,puterscience,physicsandchemistryofmoderndynamicisconstantlyaffectus.wehavetounderstandtheimportanceoftechnology,knowthatthetechnologyuniversal. althoughtechnologytocreateanewlifeprospectssolicitingthoughts,inspiring.however,thefinalanalysisisthatwerelyonourmoneffortstorealize.,asthefutureconstructionofthebackboneofourgenerationofyoungpeopleshoulderstheburdenisnotlight,newopportunitiesarealwaysaompaniedrisksandchallenges,butwewillnotgiveupthateasily,weuseouryouthtopredecessorsvowed:neverliveuptotheirpredecessorsofourhope. lookingbackatthehistoryofcivilization,andersonisthehistoryofmankindagainstthedarknessofignorance,isthescientificlitafireintheraginghumansoulofhope;technologysupportcivilization,scienceandtechnologytocreatethefuture,butthefutureisinourhands.letusbeeknowledgeexplorers,letusunknownroamingontheroad,letmeuseourcreativitytotheworldweliveabetterplace. 参考翻译： 在场的学生们，女士们，老师，大家好！我准备间隔云今天，为了纪念在这里题为“科技与未来”的讲话，我感到非常自豪的两个，但有些不安。近年来，我们已经看到我们伟大的祖国，事业的迅速发展，技术，请允许我向中国我感到非常自豪。请记住，很久以前，手机应用几乎只有一个，这是所谓的，但在几年前，手机发生了很大变化，不仅看起来更漂亮，而且还更多地使用，您可以使用手机拍照，会议上，互联网，短信等一系列的事情，我的生活更方便，所以我更多地了解的力量，技术，但我只是一个幼鸟学生，“技术”作为也知道这个词的有限，我无法使用一些非常困难的理论阐述技术xuanji，没有权利对他们的长辈的工作我可以保证的技术蓝图。但我愿意利用学生的观点，以创新技术和未来。 从基因工程“是一个生活王子”的梦想，纳米技术“不洗你的衣服，”承诺，从人工智能“会给你一个可爱的机器狗”热情，转基因技术“让人们增长鼠标耳朵”奇观。这项新技术的诞生，一种新技术，将让人们欣喜若狂，因为这些新技术正在逐步改善我们的生活，让我们更多地了解自己。在近期内，中国完成了其第一个sars病毒基因组测序，sars是目前世界上最大的承认危险的疾病，但我们为什么不把其他国家完成第一次，我们刚刚完成的国家？很简单，这说明我们的国家比其他国家落后，不如别人，我们回顾过去，刚刚开始了一个国家的改革开放和当前的科技水平已经导致一个大国，我们的祖国经历了一些的跌宕起伏，有多少困难和坎坷，但我们仍然回到所有的祖国，祖国，因为我们坚信，-不仅是技术变革的命运，可以改变未来。 我们这代人，一般感情的社会是一个强烈的竞争，学习一英尺下降。科学知识是我们关注的焦点，爱因斯坦，和斯蒂芬霍金，比尔盖茨是明星我们想到，计算机科学，物理学和化学的现代活力正在不断影响着我们。我们必须理解技术的重要性，知道该技术具有普遍性。 虽然技术创建一个新的生活前景征求思想，鼓舞人心的。然而，归根结底是要靠我们共同的努力，以实现。作为未来建设的骨干，我们这一代年轻人肩上的负担并不轻，新的机遇总是伴随的风险和挑战，但我们不会轻易放弃，我们用我们的青年前任誓言：决不辜负他们的前辈，我们的希望。 回首文明史上，安德森是人类历史上的黑暗的无知，是科学点燃了大火在肆虐人类灵魂的希望；技术支持文明，科学和技术，创造未来，但未来在我们的手中。让我们成为知识的探索者，让我们的道路上漫游，让我用我们的创造力，我们生活的世界变得更美好。 关于科学的英语演讲稿篇2 Goodmorning,mydearteacherandclassmates,mynameis*,from*Iamheretodaytotalkaboutthetopic:StrongSpin-OrbitSplittingonBiSurf-aces.Beforethetopic,Iwouldliketointroducethat*islocatedinChineseeconomicandfinancialcenterofShanghai,beingoneofthemostprestigiousuniversitiesinChinaandhavingtwobeautifulcampuses.Weletovisitourschool. NowIwillusethefollowingfourpartstointroducemytopic:Firstly,The BackgroundofRashbaEffect,secondly,Surf-aceGeometricStructureofBismuth,then,Surf-aceStatesonLow-indexSurf-acesofBismuth,finally,wewillhavetheConclusion. Rashbaeffectisamomentum-dependentsplittingofspinbandsintwo-dimensionalcondensedmattersystemssimilartothesplittingofparticlesandanti-particlesintheDiracHamiltonian.Thesplittingisabinedeffectofatomicspin-orbitcouplingandasymmetryofthepotentialinthedirectionperpendiculartothetwo-dimensionalplane.Thepossibleuseofthiseffectisforspintronicsapplications,spin-filterdevicesandquantumputing. Biisastrikingexampleofthepossibledifferencebetweensurf-aceandbulkmaterialproperties.Mostimportantly,thesurf-acesaremuchbettermetalsthanthebulkduetotheexistenceofelectronicsurf-acestatescrossingtheFermilevel.HeretheBisurf-acesweresimulatedbya22layerfilmembeddedinvacuum.,beingconfirmedby angleresolvedphotoemission(ARPES)investigationsandfirst-principlescalculations. HereweexplaintheBi(111)surf-aceindetails.Thisfigureshowssurf-acestatesofBi(111)calculatedwithoutandwithspin-orbitsplittingincluded.TheshadedareasshowtheprojectionofthebulkbandsobtainedwithoutandwithSOCandtheir superposition.InthecasewithoutSOC,aparabolicsurf-acestateislocatedaroundinthenon-relativisticenergygap.Thissurf-acestatebandgivesrisetoahexagonalelectron-likeFermisurf-aceelement.WhentheSOCtermisincludedinthe calculationitresultsinaspin-splittingofthesurf-acestateinalldirectionsandleavesitdegenerateonlyatandatM.Veryclosetotherelativisticsurf-acestatebandsaredegeneratewithbulkstatesandshowlessclearsurf-acecharacter. Aparisontotheexperimentaldispersioncanthereforeimmediatelyrevealifthespinorbitsplittingpictureiscorrect.SuchaparisonisshowninFig.5.Thefigureshowsthecalculatedandmeasuredelectronicstructureinthevicinityoftwohighsymmetrypointsonsurf-acesofBi(111),whichisingoodagreenment.Wecanseethattheintensityofbothsurf-acestatesstronglydecreasescloseto.Thisismostlikelyduetotheoverlapwiththeprojectedbulkbandstructure.Thesurf-acestatesarenolongergenuinesurf-acestatesbutsurf-aceresonances,whichperatemuchmoredeeplyintothecrystalandgivealowerphotoemissionintensity.Havinginversionsymmetry,thiscalculationyieldstwospin-degeneratebandsneartheFermienergy thatdonotcrossat. Inthispicture,wecanalsoseethatbothcalculationsofBi(110)andBi(100)surf-acesshowtheverysteepdispersionofthebandsclosetothesymmetrypointwhichischaracteristicforthestrongSOC. Inconclusion,strongSpin-OrbitSplittingonBiSurf-acesisstudiedbyfirst-principlescalculations. TheSOCtermleadstoastrongandanisotropicsplittingofthesurf-ace-statebandsthatprofoundlymodifiesthedispersionofthesurf-acestatesandthesurf-aceFS. Thankyouforlistening! 关于科学的英语演讲稿篇3 thepresenceofstudents,ladiesandteachers,everyone!iwaspreparedintervalsofcloudtoday,inhonorhereentitledtechnologyandfuturespeech,iamveryproudofboth,butsomeunease.inrecentyears,wehaveseenourgreatmotherland,thecauseoftherapiddevelopmentoftechnology,whichallowmetoachineseifeelveryproud.rememberthatlongago,cellphoneusealmosttheonlyone,whichiscalled,butafewyearsago,cellphoneshasundergonegreatchanges,notonlylookmorebeautiful,butalsousemore,youcanusethephonestotakepictures,meetings,inter,textmessages,etc.aseriesofthingsthatitheirlifemoreconvenient,soiammoreawareofthestrengthofthetechnology,butiamjustafledglingsstudents,technologyasthewordalsoawareofthelimited,iamunabletousesomeverydifficulttheorytoelaboratetechnologyxuanji,norighttoworkontheireldersicanpromiseofthetechnologyblueprint.butiamwillingtouseastudentsperspectivetotheimaginetechnologyandthefuture. fromgeicengineeringisaliveprincesdream,nano-technology-notwashingyourclothing,promises;fromartificialintelligencewillgiveyouacuterobotdogwarm,transgenictechnologyletpeoplegrowmouseearswonders.thenewtechnologyinthebirthofanewtechnologythatwillletpeoplewildwithjoy,becausethesenewtechnologiesisgraduallyimprovingourlives,henearterm,chinapleteditsfirstsarsvirusgenomesequencing,sarsisnowtheworldslargestrecognizedthedangersofthedisease,butwhynotothercountriespletedfirst,andwejustpletedthecountries?verysi-mp-le,thisillustratesthatourcountrybackwardthanothers,worsethanothers,welookatthepast,hadjuststartedacountrysreformandopeninguptothecurrentlevelofscienceandtechnologyhasleadalargecountry,ourmotherlandexperiencedanumberofupsanddowns,howmanydifficultiesandbumpyhowever,westillbackallofthemotherland,themotherlandbecausewefirmlybelievethat-notonlytechnologicalchangedestiny,canchangethefuture. forourgeneration,thegeneralfeelingofthemunityisastrongsenseofpetition,learningafootdown.sci