CNN 2012-01-07

Last week, an entire day unfinished. Someone were out the Pacific Ocean. You can find out why on next ten minutes. I am - , this is CNN student news. The Iowa caucuses, the big US political story this week, yesterday Republican presidential candidate

英语听力文摘 English Digest 663 午休的学问

The Science Of The Siesta When you go back to work or class after lunch, why is it so hard to stay awake? Although we get energy from food, we also use lots of energy to digest it. Your energy use increases 25-50% as you digest a meal. With all that

VOA慢速英语--下一个“神奇药物”是蛆?!

The Next 'Wonder Drug' Is ... a Maggot? From VOA Learning English, this is the Health Lifestyle report. The next superhero that saves the world may not be strong, powerful or good-looking. In fact, that hero may be a wriggling, squirming faceless cre

美国故事 SENEWS-2007-0825-FEATURE

Now, the Special English program American Stories. Today's story is called The White Heron. It was written by Sarah Orne Jewett. Here is Kay Gallant with the story. The forest was full of shadows as a little girl hurried through it one summer evening

托福听力短文 II-12-1

(WA) If you liked the colorful animals we just saw, you're going to love these next animals. Frogs. You might not normally think of frogs as being colorful, but these frogs definitely are. They are the dart-poison frogs of Central and South America.

英语听力文摘 English Digest 622、午休的学问

The Science Of The Siesta When you go back to work or class after lunch, why is it so hard to stay awake? Although we get energy from food, we also use lots of energy to digest it. Your energy use increases 25-50% as you digest a meal. With all that

专业术语—口腔生理学术语J-K(英文详解)

Junctional epithelium - the epithelium which seals the base of the gingival sulcus against the tooth. Keratan sulphate - a glycosaminoglycan found in cartilage, with chondroitin sulphate. Keratin - a

专业术语—口腔生理学术语O2(英文详解)

Osmotic pressure - Water tends to move towards dense concentrations of ions. Sugar solutions on the surface of exposed dentine cause water to be drawn out of the dentinal tubules causing which distort

专业术语—口腔生理学术语Q-R(英文详解)

Quadrate - one of the bones which together with the articular bones and the dentary, made/make up a reptile's jaw. In mammals the quadrate bone is incorporated into the middle ear as the incus. Ramus

SSS 2009-04-14

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? Altruism poses a problem for the theory of survival of the fittest. If we help others at a cost to ourselves, nice-guy behavior should die out, because we are giv

SSS 2011-02-07

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

大学生应该如何学习英语

大学应该是一个用英语战斗的时代：用英文获得专业最新信息；直接阅读英美主要杂志（非常难懂）；用英语参与国际会议和谈判；用英语发表论文；用英语介绍中国产品（包括写说明书、广

新托福阅读模拟试题

Hormones in the Body Up to the beginning of the twentieth century, the nervous system was thought to control all communication within the body and the resulting integration of behavior. Scientists had determined that nerves ran, essentially, on elect

U.S. firm says it can "grow" diesel

BEIJING, March 1 (Xinhuanet) -- A biotechnology(生物技术) company says it can produce diesel using the same ingredients(配制成分) that make grass grow, media reported on Monday. The Massachusetts company Joule Unlimited has created a genetica

英语听力：自然百科 大堡礁：自然奇迹—15

During the lowest tides,the water runs off and whole sections of living coral are normally beyond the water,are exposed. The level of water on the reef top decreases dramatically,getting ever shallower,and going from a stable environment,to ever chan

【英语早间课堂】Your secret's safe with me.

【主题】 Last time we learned a short sentence: Don't tell a soul. which is used to warn somebody not to discuss something private with anyone else. If you ask somebody not to tell a soul about something, maybe his answers are: My lips are sealed

【英语早间课堂】Let's get this out in the open.

【本阶段复习总结】 We've learnt ways of telling someone to keep a secret recently. And today let's have a summary. 1 Keep your mouth shut. 跟任何人说都不行。 2 Not a word. 什么多别说。不要再提。 3 My lips are sealed. 我会

大学如何学好英语

大学如何学好英语

趣味青春英语 第8期:Let the cat out of the bag

Idiom: Let the cat out of the bag ( reveal the secrete ) Hit the book: Survive Be hard on Confident Recipe Take care of your body and soul. Given that you are probably an emotional wreck in a world of sewage, swimming in the debris of whatever damage

TED演讲：细菌是怎样交流的(3)

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上，我们感兴趣的部分并不是细菌会不会发光，而是细菌何时发光。 What we noticed is when the bacteria were alo