Ontario plans to join British Columbia in regulating traditional Chinese medicine and acupuncture by the end of the year. Ontario Health Minister George Smitherman made the announcement Friday, as a government-appointed panel released its recommendat

发表于:2018-12-05 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

Don: Some people seem to need significantly less sleep than others. Yael: Tell me about it. I have a friend who swears that she sleeps only five hours a night. If she's telling the truth, then she must be bionic. She seems to have plenty of energy, a

发表于:2018-12-05 / 阅读(52) / 评论(0) 分类 英语听力文摘 English Digest

By Nico Colombant Abidjan 24 February 2006 With Reporting by Pauline Bax in Kaduna and Kano, Nigeria Even as Nigeria's government gets serious about tackling bird flu among its poultry, many Nigerians

发表于:2018-12-08 / 阅读(83) / 评论(0) 分类 2006年VOA标准英语(二月)

Chattering Chimps We talk to our house pets all the time, but wouldnt it be great if your cat could answer you in English? Well, maybe it wouldnt be so great! We tend to assume that, because they dont speak human language, other animals are dumb, or

发表于:2018-12-31 / 阅读(75) / 评论(0) 分类 英语听力文摘 English Digest

Sleeping With One Eye Open Theres an old saying that if you think youre in danger, you might ought to sleep with one eye open. Well it turns out that many kinds of birds do just that. A group of scientists at Indiana State University studied mallard

发表于:2018-12-31 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

Out for the Count 失去知觉之后 If youve ever had major surgery, you probably remember lying down and waking upbut nothing in between. Thanks to the anesthesiologist, during the actual surgery you were out of it: immobilized and insensitive to p

发表于:2018-12-31 / 阅读(59) / 评论(0) 分类 英语听力文摘 English Digest

Volcanos and Water Firefighters use water to battle a towering inferno.You might wonder if water could also stifle an erupting volcano. Actually, this experiment happens every time a volcano erupts at the bottom of the ocean. What happens when a volc

发表于:2018-12-31 / 阅读(62) / 评论(0) 分类 英语听力文摘 English Digest

Why Are Nights More Calm Compared To The Day? More often than not, the wind dies down at night after a blustery day. Where does the wind go? Why are nights generally more calm than days? The difference between calm nights and windy days is the sun. D

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 英语听力文摘 English Digest

What Are Solar Tornadoes? Large, Earth bound tornadoes are pretty impressive weather events. Those dark, giant funnel clouds inspire much awe and fear. But theyre nothing compared to so called solar tornadoes solar gases swirling in monstrous formati

发表于:2018-12-31 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest

Greek Island Shows Signs Of Volcanic Unrest Fira is a typical Greek city overlooking the Aegean Sea. Sitting atop a twelve hundred foot cliff on Santorini Island, its an ideal vacation spot. But this island wasnt always a paradise. Thirty five hundre

发表于:2018-12-31 / 阅读(93) / 评论(0) 分类 英语听力文摘 English Digest

The ozone layer is thinner than it used to be. This fact has motivated humans to keep themselves protected from the suns ultraviolet, or UV, rays. But just because we can protect ourselves from these rays doesnt mean that they dont still existthey ex

发表于:2018-12-31 / 阅读(51) / 评论(0) 分类 英语听力文摘 English Digest

Even as adults we still enjoy blowing bubbles, dont we? If youve ever wondered why blowing on a thin film of soapy water creates bubbles, this is your lucky day. All liquids have a property called surface tension. Take water, for example. Water molec

发表于:2018-12-31 / 阅读(58) / 评论(0) 分类 英语听力文摘 English Digest

Is There A Connection Between The Brain And The Gut? Most people realize there is a brain gut connection. Nervous tension can aggravate irritable bowel syndrome and common dyspepsia, or stomach upset. If the brain can upset the gut, can the gut upset

发表于:2018-12-31 / 阅读(56) / 评论(0) 分类 英语听力文摘 English Digest

What Is Whipped Cream? It adorns ice cream sundaes, pumpkin pie, gingerbread, and hot chocolate. Its sweet creaminess tantalizes taste buds and sends dieters running from the scale. Did you ever wonder why heavy cream whips into soft, light peaks? Yo

发表于:2018-12-31 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

Why Does Altitude Cause Headache? Mountain climbers face many dangers as they brave the cold winds and icy slopes and jagged cliffs of the peaks they climb. But one of the most serious dangers they face is all in their headsliterally. Why does altitu

发表于:2018-12-31 / 阅读(65) / 评论(0) 分类 英语听力文摘 English Digest

The Supermarket Numbers Game Have you ever gone to the store just for milk, but walked out with eight sale-priced cans of something youd never tasted and eight candy bars? How does that happen? Brian Wansink and colleagues have studied how people mak

发表于:2018-12-31 / 阅读(54) / 评论(0) 分类 英语听力文摘 English Digest

The Bare Necessities Of Bears In the movie The Jungle Book, Balloo the bear spends his days singing and dancing and munching paw-paws. Actually, this is a pretty accurate picture of real bears, except for the singing and dancing. North American bears

发表于:2018-12-31 / 阅读(71) / 评论(0) 分类 英语听力文摘 English Digest

When Continents Collide: The History Of Our Planet It was one of the Earths momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ran amok. Twenty million years ago, North and South America were arranged in nearly t

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

Grow Your Own Dentures 种植牙也叫人工种植牙,并不是真的种上自然牙齿,种植牙而是通过医学方式,将与人体骨质兼容性高的纯钛金属经过精密的设计,制造成类似牙根的圆柱体或其他形状,以外

发表于:2019-03-09 / 阅读(201) / 评论(0) 分类 英语听力文摘 English Digest

Methuselah Insect 昆虫的寿命相对于地球上的其他生物而言,算比较短的,不过有一种昆虫的寿命相当长,那就是一种能17年的蝉。蝉寿命虽长,却要在土里面沉睡17年,当它睡醒之后,从土里钻出

发表于:2019-03-09 / 阅读(225) / 评论(0) 分类 英语听力文摘 English Digest