Is Dew In The Morning A Good Way To Predict The Weather? 朝露能预测天气? When the dew is on the grass, rain will never come to pass; When grass is dry at morning light, look for rain before the night. Whats the science behind this old aphori

发表于:2019-02-24 / 阅读(63) / 评论(0) 分类 英语听力文摘 English Digest

脑白金到底是什么? 褪黑素,又名黑素细胞凝集素,俗称为脑白金,是存在于从藻类到人类等众多生物中的一种荷尔蒙,它在生物中的含量水平随每天的时间变化而变化。 Melatonin, sometimes ca

发表于:2019-02-24 / 阅读(62) / 评论(0) 分类 英语听力文摘 English Digest

Onions Are Toxic to Your Pets 洋葱是宠物杀手? You may already know that chocolate can be lethal to your pet, but did you know that onions can be toxic to your cats and dogs too? And Im not just talking about their breath. You see all forms o

发表于:2019-02-24 / 阅读(70) / 评论(0) 分类 英语听力文摘 English Digest

How Eggs Get Their Color 鸟蛋颜色的形成 Depending on the species, bird eggs can be any color rang ing from chickens plain white to a robins blue, streaked , spotted, bright, pale, and anything in between. We take a look at some of the reasons

发表于:2019-02-24 / 阅读(89) / 评论(0) 分类 英语听力文摘 English Digest

Is Your Dog Wimpier than Your Cat? 狗比猫更懦弱? Have you ever noticed that while its pretty easy to tell your dog is sick, its much harder to know how your cat or bird are feeling? Well, before you start asking your dog why it cant be more s

发表于:2019-02-24 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest

The Prefrontal Cortex with Age 年老的 前额皮质 The prefrontal cortex is the region of the brain located just behind the forehead, where higher-level cognition occurs, such as recalling whether a word was heard aloud or read. Most people show e

发表于:2019-02-24 / 阅读(97) / 评论(0) 分类 英语听力文摘 English Digest

Why lips go dry? 为什么嘴唇会干呢? Lets start by reviewing the ways in which the surface of our lips is different from the surface of the skin on the rest of our bodies. Basically, our lips are made of the same mucus membrane that coats t

发表于:2019-02-24 / 阅读(85) / 评论(0) 分类 英语听力文摘 English Digest

Runny Nose 流鼻涕 As anyone whos had a toddler knows, theyre incredibly demanding creatures. Armed with an insatiable desire to eat and/or destroy just about everything in their path, these walking embodiment s of unchecked ego can be a handful. E

发表于:2019-02-24 / 阅读(76) / 评论(0) 分类 英语听力文摘 English Digest

Osteoporosis 骨质疏松症 Todays word is: osteoporosis ! Yep, osteoporosis . Now, youve heard this word before, and you know it has something to do with bones. But can you actually explain what it is? The answer is straight-forward. It comes down

发表于:2019-02-24 / 阅读(87) / 评论(0) 分类 英语听力文摘 English Digest

Celebrity Worshiper s 你崇拜明星吗? Are you a celebrity worshiper ? If so, that might say something about the kind of person you are. Psychologists have found that people who believe in a just world are more likely to worship celebrities, whe

发表于:2019-02-24 / 阅读(73) / 评论(0) 分类 英语听力文摘 English Digest

Vesta 灶神星 You can see the planet Jupiter on a clear night, but Jupiter is humongous. Mars and Mercury are smaller than that, and you can see them, too. Wait a minute, our moon is even smaller, and you can see that. Could anything smaller than t

发表于:2019-02-24 / 阅读(70) / 评论(0) 分类 英语听力文摘 English Digest

Buckminster Fuller and His Geodesic Dome 巴克敏斯特福乐和他的球型屋顶 Ever heard of a man named Buckminster Fuller, or Bucky, as his friends called him? R. Buckminster Fuller was a twentieth century scientist, philosopher , inventor, an

发表于:2019-02-24 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

It Pays to Be an Optimist 做个乐观主义者 Research shows that whether a person is an optimist or a pessimist is related to their quality of life, including their physical health. The subjects involved first took personality tests in the 1960s a

发表于:2019-02-24 / 阅读(85) / 评论(0) 分类 英语听力文摘 English Digest

Not So Silly Geese 雁群为什么总排成一字或人字形队伍飞行呢?这是因为大雁飞行的路程很长,它们除了靠扇动翅膀飞行之外,也常利用上升气流在天空中滑翔,使翅膀得到间断地休息空隙,以节

发表于:2019-02-24 / 阅读(79) / 评论(0) 分类 英语听力文摘 English Digest

The Physics of Water Towers 水塔,一般居民区里蓄水作用,有些还是水厂生产工艺的一个重要组成部分,用于保持和调节给水管网中的水量和水压。主要由水柜、基础和连接两者的支筒或支架组成。

发表于:2019-02-24 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest

Dinosaur Oil Crisis 恐龙灭绝有关石油危机? 恐龙是距今1亿3千万年前地球上爬行动物的总称。它们的种类很多,身体大小、形状、生活习性各不相同,陆地、海洋、空中都是恐龙类爬行动物的活动

发表于:2019-02-24 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

D:Yael, do you know what's the best thing about state affair? Y: Do you tell. D: Fried candy bars, two favoriate treats rolled into one. And doesn't it bother your mind how they manage fried chacholate without making a terrible mess? Fried candy ba

发表于:2019-02-24 / 阅读(80) / 评论(0) 分类 英语听力文摘 English Digest

Everybody loves the swimming pool. But how clean is the water in the average backyard or public pool? If you trust chlorine to take care of germs, you're in for a surprise. Chlorine and other disinfectants do indeed help to clean the water, but some

发表于:2019-02-24 / 阅读(93) / 评论(0) 分类 英语听力文摘 English Digest

Although it is devastating to find out that Chicago is sinking, were only talking one millimeter a year. Thats four inches in a century, but only until the land in North America brings itself back into equilibrium. When glaciers covered Canada and th

发表于:2019-02-24 / 阅读(63) / 评论(0) 分类 英语听力文摘 English Digest

Eye spy, on this moment of science. You see at a movie's, someone is asked for identification, instead of producing a badge or picture, they simply look into a camera. Hollywood special effect department then show us lots of needle computer graphics.

发表于:2019-02-24 / 阅读(73) / 评论(0) 分类 英语听力文摘 English Digest