美国科学60秒 SSS 2013-05-28

We've discovered that Vitamin C kills MT cells. TB research William Jacob, with the Albert Einstein College of Medicine in the Bronx. And in fact it works not only on the multidrug-resistent strains but totally drug-resistent strains as well. Jacobs

侏罗纪搏击俱乐部 第26期:为什么没有吃掉尸体

The teeth that were found near the T-Rex had been shed. 这些牙齿在霸王龙化石附近被发现。 But were the teeth broken during a battle, or could the Nanotyrannus have simply found the dead T-Rex and lost them scavenging on his remains? 但是

【美国总统电台演说】2007-11-17

THE PRESIDENT: Good morning. In a few days, our Nation will celebrate Thanksgiving. Like millions of Americans, members of Congress will travel home for the holiday. Unfortunately, as they get to work carving their turkeys, they're leaving a lot of

9-15 为什么水果和蔬菜是健康的首选？

Why Fruit and Vegetables Are the Tops for Good Health? They used to say an apple a day keeps the doctor away. And according to the Department of Health, years of research shows that eating fruit and v

英语音频杂志：冰淇淋和银行业

Ice-cream and banking By John Kuti Russian ice-cream is great. Any shop or street seller can offer a choice of different ones for less than ten roubles, thats about 20p in British money, which I think is a fair price. They have natural fruit flavours

60秒科学:Vitamins Block Some Exercise Benefits

Exercise is good for you. Antioxidants are good for you. But put them together and its not as good as youd think. Because a recent study shows that some vitamins block the beneficial effects of exercise. A good workout not only gets your heart pumpi

维生素C真的能治疗你的感冒吗?

The jury is still out on whether vitamin C can treat or prevent a cold, but a recent review of the scientific literature suggests that it does have some benefits. 虽然维生素C能否治疗或预防感冒依然没有定论，但是最近的一项科学

CNN 2011-03-13

Here are some of the other stories we are watching this hour. It's a rough start on Wall Street, unfortunately, this morning. Just after the opening bell, the Dow plunged 150 points, and the view hasn't gotten much better from there. Investors are re

SSS 2009-10-12

Youve no doubt heard of free radicals, those nasty chemicals that seem to contribute to heart disease, cancer and all sorts of human ailments. Maybe you even take antioxidant vitamins to help get rid of these unwanted toxins. Well, maybe you shouldnt

SSS 2009-03-13

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. If you get a scratch, your skin can heal itself. But if your car gets scratched, it stays scratched. Scientists at the University of Southern Mississip

SSS 2009-05-12

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Exercise is good for you. Antioxidants are good for you, but put them together, and its not as good as you think because a recent study shows that some v

VOA标准英语2011--'Terrorists in Love' Examines Islamic Radicals

'Terrorists in Love' Examines Islamic Radicals How does a young man transform from a law-abiding middle-class citizen into a terrorist? Ken Ballen, a former federal prosecutor, spent five years trying to find answers to that question. The result is a

VOA标准英语2013--Islamist Radicals React Online to Boston Attacks

Islamist Radicals React Online to Boston Attacks The bombings at the Boston Marathon not only caught U.S. intelligence services by surprise; on Jihadist websites, debate has raged over the motivations and implications, according to Shiraz Maher of th

60秒科学:Antioxidants-Diabetes Connection

Antioxidants-Diabetes Connection In a study in the journal Cell Metabolism, some mice given antioxidants were more likely to become diabetic, because free radicals help muscle cells respond to insulin. Karen Hopkin reports. Youve no doubt heard of fr

很精彩的英文报刊短句欣赏 2

很精彩的英文报刊短句欣赏 2 05-23 19. The setting up of a credible oversight authority has curbed police brutality. 由于建立了一个可信任的监督机构，警察暴行受到了遏制。 注：oversight,监督，监管。 20. The n

每天两餐西红柿 永葆肌肤年轻

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

打哈欠真的会传染吗？

人们常说打哈欠会传染，每次你一打呵欠，周围的人也会跟着打哈欠。难道哈欠真的可以传染，还是仅仅是巧合而已？我们来看看神经学家是怎么说的吧！ A yawn is an instinctive behavior: You don't

对眼睛有益的10种食物

You need to take proper care of your eyes to maintain good eyesight. There are few fundamental rules that have to be done for good eye care. As you know very well that exposure to sun is very bad for the eyes. Similarly, if you use computer for long

英语博客：Strength and flexibility.

I was just listening to a Swiss podcast about health. The presenters were talking about free radicals and how to fight them. They first of all listed all the situations in life that cause free radicals to be produced in our bodies: emotional and phys

美国暂停与俄罗斯的军事合作

美国暂停与俄罗斯的军事合作 WASHINGTON, March 3 (Xinhua) -- The U.S. Defense Department on Monday evening said that it is suspending all military-to-military engagements with Russia because of Moscow's military movement in Ukraine. The su