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  • 英语听力文摘 English Digest 421、植皮有新招

    Silkworm s and Skin Graft s Don: One of the neater things thats going on in biology is the genetic modification of species. By changing the instructions in their genes, we can make certain plants and animals produce things that are useful to humans....

  • 英语听力文摘 English Digest 420、无形的力量

    The Invisible Hand 无形的力量 A: What's going on? B: Check out the setup , Yaoyao. A: A stove, an empty aluminum soda can, kitchen tongs , and a saucepan . Are you experimenting with a new recipe ? B:No, i'm experimenting with air pressure. A:Ho...

  • 英语听力文摘 English Digest 419、独一无二的我们

    Lithic Principle 岩屑法则 I heard recently that if the laws of nature were changed even a little bit, there would be no people in the universe. Is this true? Well, its certainly true that if the fundamental constants of nature were somehow change...

  • 英语听力文摘 English Digest 418、饮食与基因

    Nutrigenomics The study of genes has shown that every individual is genetic ally unique, and this discovery leads to a host of questions as to the relationship between an individuals genes and environmental factors such as diet. That is, how does die...

  • 英语听力文摘 English Digest 417、寂寞会传染

    Loneliness Is Contagious 寂寞会传染 Some diseases are contagious like colds, flu, and chicken pox . But what about loneliness? Loneliness may not be a disease, at least not in the same way that chicken pox is. But loneliness can be contagious ....

  • 英语听力文摘 English Digest 416、“二手”空气

    二手空气 Big cities, with all their pollution , have an effect on trees No doubt. In the countryside. Say what? Big cities affect the trees in the countryside? You got it! According to a study conducted by Jillian Gregg, who now works at the EPAs...

  • 英语听力文摘 English Digest 415、流感疫苗的神奇功效

    Flu Shot Through the Heart 流感疫苗的神奇功效 Researchers conducting a study of hospital stays for over two hundred and eighty six thousand older folk s found something interesting in their data. The number of hospitalizations for heart dise...

  • 英语听力文摘 English Digest 414、天生的猎手

    Snake Vision Snakes have heat-vision that allows them to catch their dinners in the dark. True or false? True! It isnt quite right to call it vision, thoughmore accurate would be to say that certain specie s , such as rattlers, have pit s just under...

  • 英语听力文摘 English Digest 413、偶尔的“山顶洞人”

    Sometime Cavemen 偶尔的山顶洞人 From the bestselling novel Clan of the Cave Bear to the 1981 movie Caveman, pop-culture tends to misrepresent prehistoric people as cave dwelling brute s . But even the most speculative recreations of early huma...

  • 英语听力文摘 English Digest 412、防火气球

    The Fireproof Balloon 防火气球 Yael, Want to see a trick ? Sure. Here, blow up this balloon. Ok, now what? Now, I light this candle. Now what do you think will happen when you put the flame under the balloon? Itll pop , of course. The flame will...

  • 英语听力文摘 English Digest 411、天冷不宜锻炼?

    Too Cold to Exercise? 天冷不宜锻炼? D: WooIt's freezing out. Y: Come on, It's not that cold. D: Sure it is. Yael.I guess there's just no way I can go jog ging today. Y: Oh, so that's what this all about. D: Not really. What if my lungs freeze...

  • 英语听力文摘 English Digest 410、长蛀牙,怎么办?

    Getting Rid Of Cavities Don: Sorry, I'm late. I was brushing my teeth. Yal: Brushing your teeth! Right before A Moment of Science? Why? D: I'm trying to get rid of a cavity . Y: Get rid of a cavity ? Are you stuck with a cavity once you have it? D: I...

  • 英语听力文摘 English Digest 409、绅士的蝴蝶

    绅士的蝴蝶 One thinks of nature as red in tooth and claw, as the old saying goes. Species compete with each other for resources, and members of the same species compete with each other for mates. Theres a lot of scratch ing and biting going on....

  • 英语听力文摘 English Digest 408、点点头,更自信!

    For Self-Confidence, Just Nod Don: Yal, everyday I grow closer to my goal of mind-control. Yal: What do you mean, Don? D: Checkout thisstudy from Ohio State University that says nodding your head to signal approval and shaking your head to signal dis...

  • 英语听力文摘 English Digest 407、头球有害健康吗?

    Is Heading in Soccer Dangerous? 头球危险吗? Is heading in soccer dangerous? Its a question that has met its fair share of controversy. If youve never played soccer, heading may look pretty dangerous to the poor brain. Where else in life do you...

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