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听力文摘：酸雨
Acid Water 酸雨 What are you doing outside, Don? It's about to rain. Don你在干嘛呢？这天都快下雨啦！ I'm setting out bottles. 我在放瓶子。 I can see that. But why? 我看得出来！你放瓶子有什么用呢？ For my new busi
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听力文摘：自然界的闹钟
Cock-a-Doodle-Do 自然界的闹钟 It's four A.M. You're tucked safely into a warm bed, savoring the last few hours of sleep before daybreak. And then, suddenly (a rooster crows). 早上四点，你还在温暖的被窝里蜷着，享受着天亮前为
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听力文摘：神奇的蜂王浆
The Royal Jelly 神奇的蜂王浆 According to legend, King Arthur gained the crown by pulling a sword from a rock. Queen honeybees have an equally enchanting way of ascending to the throne. Introducing the Royal Jelly! 据说，亚瑟王当年从岩石
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听力文摘：药物与学习能力
Drugs and Learning 药物与学习能力 Don: Ya?l, when you experience something new, do you know what happens to your brain? Don: Ya?l，你知道当你碰到新的东西的时候，你的大脑会发生什么吗？ Ya?l: Some of the neurons in you
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听力文摘：大自然最杰出的建造师
Beyond the Stinger 大自然最杰出的建造师 Unless you're an entomologist or a beekeeper, bees typically inspire one thing: fear. But most bees are non-aggressive, and only sting when provoked. In fact, once you get beyond the stinger, bees are
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听力文摘：雨中的蚂蚁
Ants Out In the Rain 雨中的蚂蚁 Oh, no, Ya?l it's starting to rain! And I left my ant farm outside, now my ants were drown and die.！ 天呐，Ya?l，下雨了！可是我把我的蚂蚁农场忘在了外面了，现在我的蚂蚁们肯定都被
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听力文摘：清理臭氧层
Cleaning Up The Ozone Layer 清理臭氧层 The scientists are devoting all their time to this problem(solving ozone layer depletion) are going to be thrilled. 一些科学家花毕生的精力来解决臭氧层损耗的问题，他们将会感到很兴
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听力文摘：模仿语速
Matching Tempos 模仿语速 Research shows that people change the speed at which they speak to more closely match speech they have just heard. They dont imitate each other exactly, but they get sort of pulled in one direction or another, depending o
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听力文摘：自然界的直升机
Nature's Helicopters 自然界的直升机 Most birds flap their wings up and down, but hummingbirds move their wings in a figure-eight pattern. With each flap they twist their wings one-hundred-eighty degrees so that they create a downward thrust on
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听力文摘：人类接近长寿的又一步
One Step Closer to Living Longer 人类接近长寿的又一步 D: You know, when I watch futuristic sci-fi movies, I notice everyone has a normal aging pattern. You don't encounter people who just having been107 years old. That's probably a mistake.
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听力文摘：没有父亲的蜜蜂
Fatherless Honeybees 没有父亲的蜜蜂 How male honeybees can be without fathers? The reason lies in whats called a haploidiploid system of sex determination. Approximately one-fifth of the animal kingdom, including ants and wasps, use this syste
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听力文摘：最快的车是什么？
What Makes Hybrid Cars So Efficient? 最快的车是什么？ Don :Hybrid cars are known as hybrids because they use an electric motor to augment the performance of a small, efficient gasoline engine. But this isnt the only reason hybrids are more ef
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听力文摘：干旱
Drought 干旱 For those of us lucky enough to always have enough food and water, it may be hard to imagine living through a drought. A drought occurs when for a variety of reasons, usually including a lack of rainfall and warm temperatures. Soil moi
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听力文摘：蚂蚁来袭！
Ant Attack! 蚂蚁来袭！ Imagine this. Youre coming home to your gated community after a long day of work. As you stop to show the guard your ID, a mugger jumps out from behind a bush and grabs you by the mouth. 想象一下这样的情景：结束了
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听力文摘：南极有苍蝇？
What's a Fly Doing in Antarctica? 南极有苍蝇？ Sometimes the biggest finds are the smallest finds. Researchers examining a segment of siltstone taken from ground along the Beardmore glacier in Antarctica found something unexpected. They found a
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