单词：repression of enzymes
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This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a
Scientific American(六)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo
Scientific American(五)月
A prestigious Indonesian Islamic theologian is traveling to Europe to promote the country's tolerant, pluralist interpretation of Islam and counter the violent ideology of radical extremists. The tour is organized by groups that promote pluralism and
VOA标准英语2010年(九)月
But methane is actually odorless, too. 但是甲烷也是无味的。 Well then, what stinks? 那么，什么东西这么臭？ The foul smell is usually due to volatile sulfur compounds, such as hydrogen sulfide and methanethiol, or methyl mercaptan
TED演讲教育篇
Author Jeremy Safron has a unique philosophy on food: Don't cook it. Safron, a pioneer in the raw-food movement, is out with a new book, The Raw Truth, which outlines the benefits of raw food. He writes that vital enzymes in our food that are elimina
趣味英语
Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来，口吃可以归咎
经济学人科技系列
By Peter Fedynsky Moscow 30 October 2007 Russian President Vladimir Putin has commemorated more than 20,000 people executed at a Moscow killing field during the height of Stalinist terror in 1937 to 1938. Mr. Putin said those who perished included th
2007年VOA常速英语（十月）
Avocado 牛油果 In addition to its flavorful taste and rich and creamy texture, this fruit (yep, it is indeed a fruit!) is loaded with antioxidants and can help you lower your bad cholesterol. Whether you eat it in a salad, spread on toast, or even
实用英语
A healthy liver plays a key role in relieving digestive issues, such as a sluggish metabolism, gas, bloating, and constipation. It regulates blood sugar levels, which, when out of balance, can cause sugar cravings, fatigue, and fuzzy thinking. 健康的
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African Union Official Hopes for a More Peaceful and Democratic Continent in 2010 The U.S. human rights monitoring group Freedom House says Africa ranks as the bleakest region in a bleak year in terms of political rights and civil liberties in 2009.
VOA标准英语2010年(一月)
For the second time in three days, police in Mauritania have used clubs and tear gas to disperse demonstrators calling for the re-instatement of the country's president, who was deposed in a military coup d'etat. The crackdown has heightened tension
VOA标准英语2008年（十月）
Heartburn Drugs Linked to Heart Attacks 某些胃药可能增加心肌梗死的风险 The widely used drugs known as proton pump inhibitors, or P.P.I.'s gastric reflux preventives like Prilosec and Prevacid may increase the risk for heart attack, acc
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There has been a lot of research done on the significance of food combining when we eat. Many believe that our stomach is designed to only digest food correctly one food type at a time or eating foods together that are compatible with each other. Thi
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He and his colleagues noted parallel changes in the genes for three digestive enzymes whose job is to liberate two particular amino acids, lysine and arginine, from proteins. 他的团队发现三种消化酶基因相似的改变，这些消化酶的作
经济学人科技系列
在我们的生活中，死亡是我们所有人必定会遇到的事情，无论是家庭成员还是宠物，甚至是你都将有终结之时。事实上，每分钟世界上大约就有100人死亡。但在人死之时到底会发生什么呢？
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Science and technology. 科技。 Medical implants. 医用植入设备。 A sweet idea. 一个甜美的想法。 Researchers are trying to harness glucose-the body's own fuel-to power implantable gadgets such as pacemakers. 研究人员正试图利用葡
经济学人综合
It may be a la mode to create lighter versions of our favourite snacks but one company has taken the trend rather literally. 创意美食，点亮生活。不过，一家公司当真做到了把那些最受人们欢迎的副食点亮了。 The world'
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