经典英语演讲稿
老地方整理的经典英语演讲稿（精选4篇），希望这些优秀内容，能够帮助到大家。
经典英语演讲稿 篇1
i have the answer to a question that we've all asked. the question is, why is it that the letter x represents the unknown? now i know we learned that in math class, but now it's everywhere in the culture -- the x prize, the x-files, project x, tedx. where'd that come from?
about six years ago i decided that i would learn arabic, which turns out to be a supremely logical language. to write a word or a phrase or a sentence in arabic is like crafting an equation, because every part is extremely precise and carries a lot of information. that's one of the reasons so much of what we've come to think of as western science and mathematics and engineering was really worked out in the first few centuries of the common era by the persians and the arabs and the turks.
this includes the little system in arabic called al-jebra. and al-jebr roughly translates to “the system for reconciling disparate parts.“ al-jebr finally came into english as algebra. one example among many.
the arabic texts containing this mathematical wisdom finally made their way to europe -- which is to say spain -- in the 11th and 12th centuries. and when they arrived there was tremendous interest in translating this wisdom into a european language.
but there were problems. one problem is there are some sounds in arabic that just don't make it through a european voice box without lots of practice. trust me on that one. also, those very sounds tend not to be represented by the characters that are available in european languages.
here's one of the culprits. this is the letter sheen, and it makes the sound we think of as sh -- “sh.“ it's also the very first letter of the word shalan, which means “something“ just like the the english word “something“ -- some undefined, unknown thing.
now in arabic, we can make this definite by adding the definite article “al.“ so this is al-shalan -- the unknown thing. and this is a word that appears throughout early mathematics, such as this 10th century derivation of proofs.
the problem for the medieval spanish scholars who were tasked with translating this material is that the letter sheen and the word shalan can't be rendered into spanish because spanish doesn't have that sh, that “sh“ sound. so by convention, they created a rule in which they borrowed the ck sound, “ck“ sound, from the classical greek in the form of the letter kai.
later when this material was translated into a common european language, which is to say latin, they simply replaced the greek kai with the latin x. and once that happened, once this material was in latin, it formed the basis for mathematics textbooks for almost 600 years.
but now we have the answer to our question. why is it that x is the unknown? x is the unknown because you can't say “sh“ in spanish. (laughter) and i thought that was worth sharing.
经典英语演讲稿 篇2
大家好，我今天演讲的题目是“我的梦想”。
每个人都有梦想，而且很好，我也不例外。我有一个小小的梦想，当我达到目标时，我会实现更多的梦想。开始，我还是个婴儿，一心想变得很强壮，像少林寺里的孩子一样，武功高强。但是我觉得离开父母去很远的地方练武，辛苦，有点舍不得。小时候，我有一个梦想，我希望我有钱。大人问：小姑娘，有了钱你打算怎么办？我要去买泡泡糖"如果你有很多钱？
我打算买很多泡泡糖。"如果你有钱花的话？我会买泡泡糖工厂。"天真的童年我们的.确有一颗善良的心，幸福和快乐是同一首曲子。
慢慢进入小学，课程越来越深，知识越来越多。会感受到压力。现在我有一个梦想。我希望我没有；我每天没有很多作业要做。玩的有点剥夺，而我们40%的日子都禁锢在教室里，很多时间都在学习。但是在学习面前，是一种模糊的知识。俗话说，一种罕见的困惑。对事物的理解，从封建主义到资本主义，越大越觉得自己的观点是正确的。每天放学回家后忙了一天一夜的课，他又困又累，吃不到深夜吃的食物。这样的生活很单调，可能有时候会想念我的很多小学同学，有时候会带着一节课或者一副朦胧的睡相。讨厌死板的校服，我从来不到处穿。周六，周日；时间很短，孩子很想磨炼，慢慢了解生活；太难了，努力吧，梦想好了，我会努力让每个人都生活起来，早起晚睡，把握住自己，不再松懈。我也想为他们的梦想而奋斗。
我的演讲结束了，谢谢！
经典英语演讲稿 篇3
What life is about
As we all know, the most important thing in life is our attitude towards it, tons of men have tried different ways of treating life, and some succeeded, some failed, and here are some of the tips they left us.
Life isn’t about keeping score. Life isn’t about your shoes or your hair or the color of your skin. In fact it’s not about if you have lots of friends or if you are alone, and it’s not about how accepted or unaccepted you are. Life just isn’t about that.
But life is about whom you love and who you hurt. It’s about how you feel about yourself. It’s about trust, happiness and compassion. It’s about sticking up for your friends and replacing inner hate with love. Life is about avoiding jealousy, overcoming ignorance and building confidence. It’s about what you say and what you mean. It’s about seeing people for who they are and not what they have. And we should always remember to be ourselves. Other might have things that we desire but being what we really are is the only trail leading to the true colors of life. Most of all, it’s about choosing to use your life to touch someone else’s in a way that could have never been achieved otherwise.
The paradox of our time in history is that we have taller buildings but shorter tempers; we buy more but enjoy them less. We’ve learnt how to make a living but not a life, we’ve added years to life, but not life to years. And it is time for us to choose whether to make a difference in our life.
And these choices are what life is about.
经典英语演讲稿 篇4
Winter was gone,spring comes.I love spring best,because it's verybeautiful.In spring,the weather is aways sunny and rainy,it's not cold and nothot,it's warmer and warmer.The flowers begin to open and the trees begin to turngreen.The birds are singing in the sky,they are happy.The animals will go out toplay.Many people like to go out and enjoy the sunshine.I like wearing my sweaterand jeans, I like to fly kites,plant trees and see the beautiful flowers. Springis colorful,I think it's a wonderful season. What's your favourite season?Pleasetell me.