人类对大脑的理解已经取得了显著进展,但到底如何研究大脑里的神经元呢?神经科学家、TED Fellow Carl Schoonover 用华丽的图像向我们展示如何使用工具,看到大脑内部的景象。

发表于:2018-12-09 / 阅读(48) / 评论(0) 分类 TED公开课:美妙的神经系统

一、哥本哈根联合国气候会议 As world leaders are in Copenhagen (哥本哈根)this month,talks about climate change are gathering steam. But is climate change the most pressing threat(威胁)for mankind? Write an essay to show your opini

发表于:2018-12-18 / 阅读(155) / 评论(0) 分类 英语作文

一、雾霾天气:假如你是李华,你的英国笔友Bill来信询问你家乡是否有雾霾天气,情况如何。请按下面写一封电子邮件: 1.感谢他得关心; 2.介绍情况:(1)去年以来以发生数次雾霾天气(2)人们已

发表于:2018-12-18 / 阅读(137) / 评论(0) 分类 英语作文

RACHEL MARTIN, HOST: Writer Virginia Heffernan fell in love with the Internet through the strains of Pachelbel's Canon. (SOUNDBITE OF YOUTUBE VIDEO, GUITAR) MARTIN: It was January of 2006, and this video appeared on YouTube in its early days. (SOUNDB

发表于:2018-12-28 / 阅读(73) / 评论(0) 分类 英语语言学习

Hi, it's All in the Mind on RN. Today, why the gut has been dubbed our second brain. David Perlmutter: There are some absolutely avant-garde researchers who have finally made a huge leap and have decided to look for brain answers outside of the brain

发表于:2018-12-28 / 阅读(69) / 评论(0) 分类 英语语言学习

There is a well-known expression that says a dog is a mans best friend. It is right, therefore, that there is a special day to celebrate dogs. This day is National Dog Day. It takes place on the 26th of August. On this day you should let your dog kno

发表于:2018-12-29 / 阅读(42) / 评论(0) 分类 世界节假日博览

To Live or to Die The history of life on earth has been a history of interaction between living things and their surroundings. To a large extent, the physical form and the habits of the earth’s vege

发表于:2018-12-30 / 阅读(149) / 评论(0) 分类 英语沙龙2004全年合辑上

Is Cloning the Future? Saving lives has always been an important mission of science. Now science, and indeed all society, is facing a new dilemma:whether or not to try and save more lives through huma

发表于:2018-12-31 / 阅读(64) / 评论(0) 分类 有声英文阅读

The Computer and The Poet The essential problem of man in a computerized age remains the same as it has always been. That problem is not solely how to be more productive, more comfortable, more conten

发表于:2018-12-31 / 阅读(70) / 评论(0) 分类 有声英文阅读

And let us call it the Encyclopedia of Life. 不妨将此项目称为生命百科。 What is the Encyclopedia of Life? A concept that has already taken hold and is beginning to spread and be looked at seriously? 生命百科的概念已经得到人们的

发表于:2019-01-03 / 阅读(51) / 评论(0) 分类 TED演讲科学篇

有人说,一名长者逝去就如一座图书馆被焚毁。人类学家伊丽莎白林赛,国家地理研究员,收集了作为故事和传说流传的深厚的文化知识。

发表于:2019-01-05 / 阅读(71) / 评论(0) 分类 TED公开课:地球村

New Antibiotic Found in Human Noses 研究人员在人类鼻子发现新抗生素 The search for new drugs to fight infections has led to a discovery in an unlikely place in peoples noses. What researchers found in noses is a compound called lugdunin

发表于:2019-01-12 / 阅读(71) / 评论(0) 分类 2016年VOA慢速英语(八)月

I want to talk about 4.6 billion years of history in 18 minutes. That's 300 million years per minute. Let's start with the first photograph NASA obtained of planet Mars. This is fly-by, Mariner IV. It was taken in 1965. When this picture appeared, th

发表于:2019-01-18 / 阅读(55) / 评论(0) 分类 英语演讲

Human demands on natural resources have doubled in under 50 years and are now outstripping(超过) what the Earth can provide by more than half, a new report has warned. And humanity carries on(继续) as it is in use of resources, globally i

发表于:2019-01-26 / 阅读(51) / 评论(0) 分类 英语新闻

Business Pet care in Latin America Man's best amigo 商业 拉美的宠物喂养 人类最好的朋友 Profits from pooches are more than petty cash 狗用品市场的利润可不是不容小觑 BLISS spreads across Lalo's face as his glossy black lo

发表于:2019-01-26 / 阅读(76) / 评论(0) 分类 经济学人商业系列

Not swatted yet 消灭疟疾任重道远 A new vaccine is one step towards a distant goal 一种新疫苗让人类离消灭疟疾更近了一步 MAN has vanquished only one disease, smallpox. In 2007 Bill Gates set out to eradicate another, malaria.

发表于:2019-02-17 / 阅读(92) / 评论(0) 分类 经济学人综合

When they tried to stay more than a few days there was a terrible battle with claw-like hands and feet and whole families were killed. 当过了几天他们还赖着不走,于是一场可怕的战斗发生了。人们相互撕咬,发疯般地肉搏

发表于:2019-02-21 / 阅读(54) / 评论(0) 分类 美国学生人类历史

Chapter 21 第21章 A Summary 总结 A short Summary of Chapters 1 to 20 有关文明起源的小结 Thus far, from the top of our high tower we have been looking eastward. But from this time on, the history of Egypt and Mesopotamia is going to grow

发表于:2019-02-21 / 阅读(49) / 评论(0) 分类 美国学生人类历史

共鸣、合作、公平和互惠关心别人的幸福似乎很像人类的特征。但是,弗兰斯德瓦尔给我们展示一些令人惊讶的行为测试录像,是有关灵长类动物和别的哺乳动物的,看看有多少道德特征,是

发表于:2019-02-21 / 阅读(56) / 评论(0) 分类 TED演讲视频集

人类发展已经造成地球资源的紧张,但是约翰罗克斯特伦提醒我们,人类科学技术进步也使我们认识到这一切,并随之改变这种行为。他的研究发现了9大地球界限通过这个发现可以指引我们保

发表于:2019-02-21 / 阅读(137) / 评论(0) 分类 TED演讲视频集