英语听力文摘 English Digest 338、老年痴呆的预防

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

英语听力文摘 English Digest 342、无辜的嘴唇

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

英语听力文摘 English Digest 345、你家有“鼻涕虫”吗？

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

英语听力文摘 English Digest 353、骨质疏松症

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

英语听力文摘 English Digest 360、你崇拜明星吗？

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

英语听力文摘 English Digest 361、小小灶神星

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

英语听力文摘 English Digest 349、球型屋顶的奥妙

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

英语听力文摘 English Digest 347、做个乐观主义者

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

英语听力文摘 English Digest 295、大雁的“V”字形

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

英语听力文摘 English Digest 296、水塔物理学原理

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。

英语听力文摘 English Digest 299、恐龙灭绝有关石油危机？

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

英语听力文摘 English Digest 158、油炸糖果，你吃过吗？

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

英语听力文摘 English Digest 155、游泳会染上细菌？

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

英语听力文摘 English Digest 170、永别了，芝加哥

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

英语听力文摘 English Digest 172、眼睛间谍

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.

英语听力文摘 English Digest 175、药物与学习能力

When you experience something new, do you know what happens to your brain? Some of the neurons in your brain build new connections. The brain is rewired, as scientists often put it. Our brains are always changing, in response to new experiences or as

英语听力文摘 English Digest 180、流感与强壮的心脏

Flu Shot Through the Heart 一定恨透了流感吧？头疼脑热，四肢无力，涕泪四流但你是否知道偶尔患患流感能降低罹患心脏病与中风的危险呢？让我们一起来听听研究人员的新发现吧。 Researchers con

英语听力文摘 English Digest 181、蛇的视力

Snake Vision 即使在晚上，蛇也能凭借它超常的视力抓到食物。究竟为什么，听听就知道了。 Time for True or False.We 'A Moment of Science' gives you a scientific claim that you may have never heard before and then tells yo

英语听力文摘 English Digest 187、驯化狐狸

Dmitry Belyaev, Foxes, And Domestication 你与猫或狗玩耍过吗？在远古，狗对我们的祖先来说还是一种比较危险的动物呢。那么，现在为什么它们这么听话？我们的祖先又是如何驯化它们的呢？今天，就

英语听力文摘 English Digest 186、猫与色彩

Cats And Colors 人类能够很容易的分辨出不同的颜色。那么猫呢？虽然猫的视力很好，即使在非常昏暗的光线条件下也能看见，但它对于如何分辨不同的颜色似乎并不擅长。 Cats and Colors on this mo