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  • 英语听力文摘 English Digest 406、动物真的会数数?

    Can Animals Count? 动物会数数? Can animals count? People count easily, from the time we are little kids and learn our one-two-threes. But what about other species? Careful observations in the wild support the idea that some can. The American c...

  • 英语听力文摘 English Digest 405、可以喝的雨水

    Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as...

  • 英语听力文摘 English Digest 404、自然界的闹钟

    Cock-a-Doodle-Do Its four A.M. Youre tucked safely into a warm bed, savoring the last few hours of sleep before daybreak. And then, suddenly (a rooster crows). It must be time to wake up, roll out of bed, and tend to the farm. Except its four A.M., i...

  • 英语听力文摘 English Digest 403、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 enchant ing way of ascending to the throne . Introducing the Royal Jelly! This special jelly is made...

  • 英语听力文摘 English Digest 402、吃药要慎重!

    Drugs and Learning Don: Yal, when you experience something new, do you know what happens to your brain? Yal: Some of the neuron s in your brain build new connections. My brain is rewired, as scientists often put it. Our brains are always changing, in...

  • 英语听力文摘 English Digest 401、了不起的建筑师

    Beyond the Stinger 大自然最杰出的建造师 Unless youre an entomologist or a beekeeper , bees typically inspire one thing: fear. But most bees are non-aggressive , and only sting when provoke d . In fact, once you get beyond the stinger, bees...

  • 英语听力文摘 English Digest 400、臭氧空洞

    臭氧层是指大气层的平流层中臭氧浓度相对较高的部分,其主要作用是吸收短波紫外线。大气层的臭氧主要以紫外线打击双原子的氧气,把它分为两个原子,然后每个原子和没有分裂的氧合并...

  • 英语听力文摘 English Digest 399、雨中“漫步者”

    Ants Out In the Rain Don: Oh, no, Yal it's starting to rain! And I left my ant farm outside, now my ants were drown and die.! Yal: Come on, Don. I'm guessing plenty of ants drown every time it rains, which makes me wonder how do ground nesting ants...

  • 英语听力文摘 English Digest 398、人工臭氧可行吗?

    Making New Ozone 构建新的臭氧层 Don: Yal,Were always hearing that the ozone layer is being deplete d , and how bad this is because we need it to protect us from the suns harmful ultraviolet ray s . But Ive been thinking, and there has to be a...

  • 英语听力文摘 English Digest 397、凶猛的鱼类

    Ferocious Fish 凶猛的鱼类 The movie Jaws(大白鲨) was so frightening that many people who saw the film swore off swimming in the ocean. Consequently, when most people think of fearsome sea creatures, sharks come immediately to mind. Less w...

  • 英语听力文摘 English Digest 396、长寿的奥秘!

    One Step Closer to Living Longer 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. Y: A mistake? Why? D: Because...

  • 英语听力文摘 English Digest 395、无意识模仿

    Matching Tempo s 模仿语速 Researchshows 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...

  • 英语听力文摘 English Digest 394、自然界的直升机:蜂鸟

    蜂鸟是雨燕目蜂鸟科动物约600种的统称,是世界上已知最小的鸟类。蜂鸟身体很小,能够通过快速拍打翅膀悬停在空中,每秒约15次到80次,它的快慢取决于蜂鸟的大 小。蜂鸟因拍打翅膀的嗡嗡...

  • 英语听力文摘 English Digest 393、单亲蜜蜂王国

    Fatherless Honeybee s How male honeybee s can be without fathers? The reason lies in whats called a haploidiploid system of sex determination. Approximate ly one-fifth of the animal kingdom, including ants and wasp s , use this system. What it boils...

  • 英语听力文摘 English Digest 392、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 hybrid s because they use an electric motor to augment the performance of a small, efficient gasoline engine. But this isnt the only reason hybrid s are mor...

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