国家地理:The Coliseum 古罗马竞技场

The solution lay in three key architectural innovations that formed the secret of Rome's great monuments. The most important, is the arch. The arch is an almost perfect design for bearing heavy loads. And that design is so simple. A series of wedge -

SSS 2009-05-29

This is Scientific Americans 60-second Science. Im Karen Hopkin, This will just take a minute. Have you ever said, I know it like the back of my hand? Well, how well do you know the back of your hand, or the back of your knee, or behind your ears? Pr

SSS 2008-05-07

This is Scientific American's 60-Second Science,I am Steve Mirsky.Got a minute? Its accepted that a large meteor impact 65 million years ago was responsible for the mass extinction of the dinosaurs. Which opened up niches for birds and mammals. But l

SSS 2012-08-09

This is scientific American sixty seconds science, I'm Cynthia Graber, this will just take you a minute. Tea and coffee are drunk worldwide, far beyond their original ecological niches. Now it looks like another caffeinated beverage also gained popul

阿迪达斯将在中国走时尚路线

Adidas AG will aim at niches such as high fashion and children's wear as it seeks to overtake Nike Inc. in China and become the nation's top sports-apparel brand. 为超越耐克(Nike Inc.)成为中国最大的运动装品牌，阿迪达斯(Adidas AG

GRE写作高分素材句子

新GRE写作部分的备考过程不同于GRE考试的其他部分，比如数学部分需要多做习题进行练习，而新GRE作文需要积累大量的写作素材才能在写作的过程中有东西可写，背诵一些经典句式对于快速提

TED演讲:为什么有这么多昆虫存在(2)

Insect exoskeletons also work like body armor, 昆虫的外骨骼就像保护身体的盔甲一样 protecting insects against the outside world and helping them cope with habitats that other creatures can't. 抵御外部环境的伤害，帮助它们应

美国语文第五册 第147期:冰山(3)

If it is possible, imagine the effect upon the beholder: 不妨想想旁观者的内心震撼， this precipice of ice, with tremendous cracking, is falling toward us with a majestic and awful motion. 那悬崖峭壁的冰山上端，訇然巨响纷纷

科学美国人60秒 SSS Species Split When Mountains Rise

Species Split When Mountains Rise生脉隆起导致生物多样化 The tropics are well known for their biodiversity. But another hotspot? Mountains. Like the Hengduan Mountains, in south-central China. 热带地区因为其生物多样性而为大家所

经济学人83:蛇颈龙的家族生活

Science and Technology Prehistoric reptiles A loving mother 科技 史前爬行动物 慈母 Family life in plesiosaurs 蛇颈龙的家族生活 THE Mesozoic land was dominated by dinosaurs. 中生代时期，恐龙统治着陆地。 At sea, though,

经济学人58:史前爬行动物 蛇颈龙的家族生活

Science and Technology 科技 Prehistoric reptiles 史前爬行动物 A loving mother 慈母 Family life in plesiosaurs 蛇颈龙的家族生活 THE Mesozoic land was dominated by dinosaurs. 中生代时期，恐龙统治着陆地。 At sea, though,

经济学人66:金融技术公司

Financial-technology firms 金融技术公司 Apps at the gate 应用近在咫尺 Tech start-ups promise to transform finance, if regulators will let them 如果监管者允许，技术创业公司希望改变金融业 Aug 3rd 2013 |From the print ed

60秒科学:Bacteria on the Skin You're In

Have you ever said, I know it like the back of my hand? Well, how well do you know the back of your hand? Or the back of your knee? Or behind your ears? Probably not as well as scientists at the National Institutes of Health who just completed a sur

四招轻松搞定托福阅读指代题

四招轻松搞定托福阅读指代题 托福阅读指代题目目前出的不是很多，我们只需要按照几个常用步骤解题就可以了。基本做法是一：向前找，二：主从句主语一致；三：注意数格 四：前文概括总

TED演讲：宏观历史(7)

For most of that time of life on Earth, living organisms have been relatively simple -- single cells. 地球的大多数时间，生物体多是以简单的单细胞存在的。 But they had great diversity, and, inside, great complexity. 但是它们是

【英语时差8,16】搜寻coywolf

Once upon a time, wolves roamed the northeastern regions of the United States in plentiful packs. But about a century ago, human development drove wolves away. They retreated north, into Canada, and west into Michigan, Wisconsin and other Midwestern

经济学人:当机器成为超级智能 人类该如何应对?

Business: Schumpeter: Techno wars 商业：熊彼德：铁克诺 之战 An earlier sunny mood about technology and innovation has given way to pessimism. 在技术与创新领域，悲观主义取代了先前的乐观态度 The most striking battle i

冰与火之歌系列之《权力的游戏》第264期:第十八章 赫德(10)

What game are you playing, Littlefinger? Catelyn is at Winterfell, hundreds of leagues from here. 小指头，你到底耍什么把戏？凯特琳人在临冬城，离此数百里之遥。 Oh? Littlefinger's grey-green eyes glittered with amusement.

经济学人:新兴银行 扰乱时机正当时

New banks 新兴银行 Ripe for disruption 扰乱时机正当时 A rush of new entrants hope to shake up banking 新兴银行这股狂流欲重组银行业 I PROMISE to open a bank account for a British citizen in just two minutes, says Nazzim Ishaqu

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The guards smiled at him from their niches as he wound his way down the turret stair, carrying the sword in his good hand. 他佩着宝剑走下高塔楼梯，站在壁龛里的守卫微笑着看他。 Sweet steel, one man said. 真是把好剑。其中