Organic Pollutant s Yes,eating organic foods is a great way to reduce the amount of pollutant s in your body, but you cant entirely escape pollution, no matter where you live. Persistent organic pollutant s , or POPs, are everywherein our food, soil,

发表于:2019-01-26 / 阅读(55) / 评论(0) 分类 英语听力文摘 English Digest

Are Tanning Beds Safe? Millions of people go to tanning salons, some to get a base tan before they go away on a beach vacation. The idea of the base tan is that it will protect you from burning on your sun excursion, so that what you end up with is a

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地球是太阳系从内到外的第三颗行星,也是太阳系中直径、质量和密度最大的类地行星。它也经常被称作世界。英语的地球Earth一词来自于古英语及日耳曼语。地球已有44~46亿岁,有一颗天然

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Supertasters Beware! You may have heard of supertasters. These are people who, it was discovered, are carrying around extra taste buds on their tongues, making the world of eating much more intense. Its not at all an unusual thing: the latest data su

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Microneedles 微针疗法 Female: From flu vaccin es to tetanus booster s , injections are a must in modern medicine. But do they always have to make you say Ouch? Male: Eh,no? F: No,indeed.If new microneedle technology is successful, we may soon hav

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Motional Induction Last time, we talked about motional induction , a phenomenon by which the ocean generate s a magnetic field. It works like this: earth has its own magnetic field. The ocean has plenty of charged atoms in it, in the form of dissolve

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Cyber -diversity 网络多样性 I'm so tired of hack ers . That's what happens when you have bunch of computers runing the same software. Because they share the same flaw s , if you can hack into one, you can hack into them all. That appens in natur

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Bradycardia Don: Yal, isn't normal heart rate somewhere between sixty to one hundred beats per minute? Yal: That's right, Don. Why? D: This would be the one time you don't correct me. My heart rate is only 44 beats per minute. That means I have bra

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Bombardier Beetle 投弹手甲虫 Male:Is it a beetle or some sort? Female:Right in deed.It's a bombardier beetle .This one is an African species, but it could be found on most other continents too. M: Bombardier ? He releases bomb or some sort? F:

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Cloning Pets Is animal cloning for real? I want to have my cat cloned. Well, animal cloning technology exists, but pet cloning isnt quite there yet. And it may never be. Why not? I could think lots of people could want to have copies of their pets. T

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Abortion and Breast Cancer When it comes to certain hot topics, claims about what science has or hasnt proven tend to be thrown around more in the service of one position or another than anything else. Somebody may tell you that global warming is abs

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黑洞是一种引力极强的天体,就连光也不能逃脱。当恒星的史瓦西半径小到一定程度时,就连垂直表面发射的光都无法逃逸了。这时恒星就变成了黑洞。说它黑,是指它就像宇宙中的无底洞,

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Save the Eggs Vaccine makers crack the eggshell and inject the virus into the white stuff surrounding the yolk. Then they reseal the egg, the embryo becomes infected, and the virus is allowed to copy itself trillions of times over. And they use eggs

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梦可以预知未来? D: Lots of people have had dreams that seem to foretell the future. Some psychologists attribute this to retrieval cues. Y: Retrieval cues? D: A retrieval cue is a coincidence in the real world that trigger s a dream memory w

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菠菜,我要吃菠菜.菠菜给予我力量.每次被狂揍之后,某一个瞬间,大力水手Popeye以迅雷不及掩耳之势吞下一罐菠菜.随后,肱二头肌开始急剧的膨胀,膨胀到与体型极其不对称.摆几个健美造型后,把反

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Wolverine the Weasel behind the Myth 狼獾神话背后的鼬鼠 For most people the wolverine is best known as an inspiration for the distinctive design of the University of Michigan logo and as the name of an X-Men character. Real wolverine s cant

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查看译文 tips: 怎样阅读才是有质量的阅读了? 中英对照请点击【中英对照】查看译文请点击 【查看译文】进行核对。 Pens in Space Legend has it that NASA spent a million dollars developing a pressurized ballpo

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Overfishing Whales and the Environment 过度捕鲸与环境 Until recently, when scientists studied changes in open-ocean ecosystems, they looked at changes in the bottom of the food chain that gradually make their way to the top, like food shortage

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Do hand sanitizer s work any better than soap and water? Yal: We re-enjoy our hero, the handsome Donne , in the kitchen where he's preparing baked Alaska for his lovely bride. Don: Yes, yes. The way to a woman's heart is through her stomach. Y: But w

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 Superglue 强力胶 Male: Help!Help! Female:What's wrong? M: I was fixing my coffee cup with superglue .And I must have got some on my fingers but I scratch my forhead.And now my hand is stuck to my head. F: Superglue ? Cool! What makes supergl

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