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听力文摘：我的大脑是静止的还是不断变化的?
Is My Brain Static Or Constantly Changing? 我的大脑是静止的还是不断变化的？ Scientists used to think that for all its complexity, the brain was pretty static. Once the brain matured, it essentially stopped growing and changing. And wh
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听力文摘：对付艾滋有新招!
Glow In The Dark Cats, Monkeys, And HIV 荧光猫、猴子和艾滋 Have you heard the one about the jellyfish, the monkey, and the glow in the dark cat? 你听说过关于水母、猴子和在荧光猫的事情吗？ Actually, it's no joke: scientis
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听力文摘：闪电有助于肥沃土壤
Lightning Helps Fertilize The Soil 闪电有助于肥沃土壤 Our bodies need protein, and proteins contain nitrogen. The air we breathe has plenty of nitrogen to satisfy our needs. 人体需要蛋白质，蛋白质中含有氮元素。我们呼吸的
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听力文摘：你能定位空中的飞机吗?
Why Is It So Difficult To Spot A Plane In The Air? 为什么定位空中的飞机如此难？ How many times have you heard a jet plane going over, looked up to see it, but not been able to find it even though you were looking toward where the sound
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听力文摘：噪声污染正在影响着鲸鱼
Noise Pollution Is Affecting Whales 噪声污染正在影响着鲸鱼 If a noisy neighbor is blasting music at all hours of the day and night, drowning out your phone conversations and interrupting your sleep, you can call the police. But what is a w
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听力文摘：锚应该抛多远?
Anchors Away, Me Boysbut How Far? 锚应该抛多远？ Anchors away, me boysbut how far? On this moment of science.What happens if you throw your anchor overboard and there isn't enough chain to reach the bottom? Does the anchor haul you down with i
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听力文摘：火山与水
Volcanos and Water 火山与水 Firefighters use water to battle a towering inferno.You might wonder if water could also stifle an erupting volcano. Actually, this experiment happens every time a volcano erupts at the bottom of the ocean. What happen
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听力文摘：种族刻板印象
Racial Stereotypes and Memory 种族刻板印象 Although there has been much debate about whether race has a biological or social basis, the bottom line is that race is a psychological reality for many people. That is, many folks assign other indivi
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听力文摘：地球同步卫星(1)
A Stationary Satellite, part 1 地球同步卫星(一) Some of the best devices in science have been anticipated by science fiction writers years before they existed. 一些最先进的科学设备在被发明前就在科幻小说中被预料到了。
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听力文摘：地球同步卫星(2)
A Stationary Satellite, part 2 地球同步卫星（二） A geostationary satellite orbitsthe planet at the same rate as the planet rotates, so the satellite is always over the same patch of ground. 同步卫星以行星旋转的速度绕着行星运动
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听力文摘：对扶手说再见
Farewell to Arms 对扶手说再见 Good afternoon, this is your captain speaking. We are at cruising altitude and will be in flight for another three hours, so youd better get comfortable. 下午好，我是这架飞机的机长。我们已经到达了
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听力文摘：失去知觉之后
Out for the Count 失去知觉之后 If you've ever had major surgery, you probably remember lying down and waking upbut nothing in between. Thanks to the anesthesiologist, during the actual surgery you were out of it: immobilized and insensitive to
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听力文摘：鱼的招亲广告
Fish ad 鱼的招亲广告 Today we're looking at fish single's ads, let's seesingle fish female seeks good father to help with eggs. Come on, don't be serious. Fish don't place ad in a paper, plus I thought a common assumption in biology is that rep
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听力文摘：科学英雄之儒勒•凡尔纳
Science Hero: Jules Verne 科学英雄：儒勒?凡尔纳 儒勒?凡尔纳（Jules Verne，1828年2月8日－1905年3月24日），法国小说家、博物学家，现代科幻小说的重要开创者之一。他一生写了六十多部大大小小的科
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听力文摘：走路的奥妙
Walking and Sloshing 边走边溅 You're at a party. Somebody hands you a glass. Hey, come on over here! Somebody else shouts. You take a step and the next thing you know you are wearing that tasty beverage. 你在一聚会上。有人递给你一杯饮
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