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第一篇：ted演讲稿永不放弃
他酷爱航海，可是他在第四次航海中，船只遇上了暗礁，不幸沉没了，只有他幸存下来，流落到一个荒岛上。
他没有绝望，他不曾放弃，他从沉没的船只上找到了他的生活必需品，努力生存了下来。面对一片与世隔绝的荒岛，是什么让他依然从离开家的绝望中脱离并存活了下来?
他曾经这样说：“我的脾气是决心要做一件事，不成功就绝不放手。”“我会尽力而为，只要我还能划水，我就不肯被淹死，只要我还能站立，我就不肯倒下……”他没有助手，工具不全，缺乏经验，所以做任何事都要花好大的精力，费好长时间。
例如，他那个有两层围墙的房子差不多用了一年多才建成：他在第一次播下大麦和稻谷的时候，这些宝贵的存货就浪费了一半;为了挖几个地交易被储存淡水，他又辛辛苦苦地忙活了几个月;为了能做一个煮汤的锅，他尝试了许多办法，也失败了一次又一次才终于研究出制作方法;可即使他做的许多事情都是白费力气，没有成功，但他总是总结了失败又从新开始。
最终，这一切的困难都被鲁滨逊坚韧不拔、永不放弃的精神征服了。这个孤岛上，每一样鲁滨逊亲手制成的东西，都凝聚着他所有的心血，他才会因为每一个小小的成功而兴奋、喜悦。
鲁滨逊深深地震撼了我，是我的心情不单单是“佩服”可以形容的。只要我们像鲁滨逊一样，在困境面前毫不退缩，不畏困难，永不放弃，在绝境中有求生的信念，有什么事不会成功呢?又有什么事会比鲁滨逊的处境更遭呢?
生活离不开微笑，只有笑着面对挫折，带着永不放弃的希望，才会有真正的快乐与幸福。
第二篇：ted演讲稿
亲爱的同学们：
大家好!
今天我国旗下演讲的题目是《健康饮食从我做起》。
每一家的健康与食品息息相关，随着经济社会不断进步，人们饮食文化日益多样化，食品卫生与安全成为备受关注的话题。
要健康饮食，就要做到以下几点：
1.不购买街边小吃或街边小店的垃圾食品，去一些正规超市购买食物。
2.买所需食品时，要注意生产日期、保质期、QS生产许可标志等等。
3.认准品牌购买，尽量买一些有品牌的食品。
4.少吃油炸食品及零食，多吃蔬菜水果等有营养的食品。
5.不买价格明显过低的食品，不要贪小失大。
注意以上几点，就大致能做到安全饮食了。俗话说：“民以食为天”。说得通俗一点就是人们每天要吃和喝，食物是人类赖以生存的物质。食品的质量决定了人类生命的质量。因此，食品必须是安全的并且有益健康的。
同时，也呼吁食品安全，关系你我他，但愿生产者不再为食品安全脸红，国人不再为食品安全担心，国家不再为食品安全丢脸。现在，让我们一起行动起来，杜绝有害食品，倡导绿色食品!希望同学们听了我这次的讲话后都健康饮食，健康地成长。
谢谢大家!
第三篇：ted演讲稿2022
over the ne_t five minutes, my intention is to transform your relationshipwith sound. let me start with the observation that most of the sound around usis accidental, and much of it is unpleasant. (traffic noise) we stand on streetcorners, shouting over noise like this, and pretending that it doesn't e_ist.well, this habit of suppressing sound has meant that our relationship with soundhas become largely unconscious.
there are four major ways sound is affecting you all the time, and i'd liketo raise them in your consciousness today. first is physiological. (loud alarmclocks) sorry about that. i've just given you a shot of cortisol, yourfight/flight hormone. sounds are affecting your hormone secretions all the time,but also your breathing, your heart rate -- which i just also did -- and yourbrainwaves.
it's not just unpleasant sounds like that that do it. this is surf. (oceanwaves) it has the frequency of roughly 12 cycles per minute. most people findthat very soothing, and, interestingly, 12 cycles per minute is roughly thefrequency of the breathing of a sleeping human. there is a deep resonance withbeing at rest. we also associate it with being stress-free and on holiday.
the second way in which sound affects you is psychological. music is themost powerful form of sound that we know that affects our emotional state.(albinoni's adagio) this is guaranteed to make most of you feel pretty sad if ileave it on. music is not the only kind of sound, however, which affects youremotions.
natural sound can do that too. birdsong, for e_ample, is a sound which mostpeople find reassuring. (birds chirping) there is a reason for that. overhundreds of thousands of years we've learned that when the birds are singing,things are safe. it's when they stop you need to be worried.
the third way in which sound affects you is cognitively. you can'tunderstand two people talking at once ("if you're listening to this version of")("me you're on the wrong track.") or in this case one person talking twice. tryand listen to the other one. ("you have to choose which me you're going tolisten to.")
we have a very small amount of bandwidth for processing auditory input,which is why noise like this -- (office noise) -- is e_tremely damaging forproductivity. if you have to work in an open-plan office like this, yourproductivity is greatly reduced. and whatever number you're thinking of, itprobably isn't as bad as this. (ominous music) you are one third as productivein open-plan offices as in quiet rooms. and i have a tip for you. if you have towork in spaces like that, carry headphones with you, with a soothing sound likebirdsong. put them on and your productivity goes back up to triple what it wouldbe.
the fourth way in which sound affects us is behaviorally. with all thatother stuff going on, it would be amazing if our behavior didn't change. (technomusic inside a car) so, ask yourself: is this person ever going to drive at asteady 28 miles per hour? i don't think so. at the simplest, you move away fromunpleasant sound and towards pleasant sounds. so if i were to play this --(jackhammer) -- for more than a few seconds, you'd feel uncomfortable; for morethan a few minutes, you'd be leaving the room in droves. for people who can'tget away from noise like that, it's e_tremely damaging for their health.
and that's not the only thing that bad sound damages. most retail sound isinappropriate and accidental, and even hostile, and it has a dramatic effect onsales. for those of you who are retailers, you may want to look away before ishow this slide. they are losing up to 30 percent of their business with peopleleaving shops faster, or just turning around on the door. we all have done it,leaving the area because the sound in there is so dreadful.
i want to spend just a moment talking about the model that we've developed,which allows us to start at the top and look at the drivers of sound, analyzethe soundscape and then predict the four outcomes i've just talked about. orstart at the bottom, and say what outcomes do we want, and then design asoundscape to have a desired effect. at last we've got some science we canapply. and we're in the business of designing soundscapes.
just a word on music. music is the most powerful sound there is, ofteninappropriately deployed. it's powerful for two reasons. you recognize it fast,and you associate it very powerfully. i'll give you two e_amples. (first chordof the beatles' "a hard day's night") most of you recognize that immediately.the younger, maybe not. (laughter) (first two notes of "jaws" theme) and most ofyou associate that with something! now, those are one-second samples of music.music is very powerful. and unfortunately it's veneering commercial spaces,often inappropriately. i hope that's going to change over the ne_t fewyears.
let me just talk about brands for a moment, because some of you run brands.every brand is out there making sound right now. there are eight e_pressions ofa brand in sound. they are all important. and every brand needs to haveguidelines at the center. i'm glad to say that is starting to happen now. (intelad jingle) you all recognize that one. (nokia ringtone) this is the most-playedtune in the world today. 1.8 billion times a day, that tune is played. and itcost nokia absolutely nothing.
just leave you with four golden rules, for those of you who run businesses,for commercial sound. first, make it congruent, pointing in the same directionas your visual communication. that increases impact by over 1,100 percent. ifyour sound is pointing the opposite direction, incongruent, you reduce impact by86 percent. that's an order of magnitude, up or down. this is important.secondly, make it appropriate to the situation. thirdly, make it valuable. givepeople something with the sound. don't just bombard them with stuff. and,finally, test and test it again. sound is comple_. there are many countervailinginfluences. it can be a bit like a bowl of spaghetti: sometimes you just have toeat it and see what happens.
so i hope this talk has raised sound in your consciousness. if you'relistening consciously, you can take control of the sound around you. it's goodfor your health. it's good for your productivity. if we all do that we move to astate that i like to think will be sound living in the world. i'm going to leaveyou with a little bit more birdsong. (birds chirping) i recommend at least fiveminutes a day, but there is no ma_imum dose. thank you for lending me your earstoday. (applause)