美国国家公共电台 NPR Federal Efforts To Control Rare And Deadly Bacteria Working

AUDIE CORNISH, HOST: The federal government set up a network last year to identify deadly germs called nightmare bacteria. Today the Centers for Disease Control and Prevention says that network is helping control these germs. And the CDC says the sys

高中英语人教版高一下讲解07

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SSS 2008-11-27

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? We all know to wash our hands after handling raw poultry. But next time youve just cruised down the interstate behind a truck full of chickens or Thanksgiving turkey

SSS 2012-06-29

This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You know what fiber's good forto keep things moving smoothly downstairs. But it's not just for staying regular. Fiber can boost the number of beneficial bacter

考研背诵50篇——48 Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are us

2006年VOA标准英语-Beach Bacteria Leaves Swimmers Stranded at Shor

By Melinda Smith Washington, DC 09 August 2006 watch Beach Pollution report Birds are believed to contribute to the pollution at the beach A prominent environmental organization has called for better monitoring of the water quality along many of Ame

2006年VOA标准英语-Study Shows Bacteria Found in Yogurt May H

By Paige Kollock Washington, DC 14 February 2006 watch Yogurt and HIV report Yogurt makers like to advertise the health benefits of eating their product. VOA's Paige Kollock reports they may be right

SSS 2008-07-02

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute. Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even

VOA标准英语2012--Nano Tool Watches Teardrop Protein Destroy Bacteria

Nano Tool Watches Teardrop Protein Destroy Bacteria About a hundred years ago, a Scottish biologist discovered that proteins called lysozymes in human tears can kill bacteria. Scientists have studied the enzyme extensively, but molecular biologist Gr

美国国家公共电台 NPR Diet Hit A Snag? Your Gut Bacteria May Be Partly To Blame

DAVID GREENE, HOST: So if you've ever been on a diet but you didn't lose the weight you would hope to lose, your gut bacteria might be part of the problem. NPR's Allison Aubrey reports on how the microbes in our guts may either help or hinder weight

TED演讲:我们为什么要排气(1)

Flatulence, or passing gas, is a normal daily phenomenon. 胀气，或者放屁，是正常的日常现象。 Most individuals, yes, that includes you, 大多数人，是的，这包括你， will make anywhere from 500-1500 milliliters of gas and ca

科学美国人60秒 SSS Bacteria Can Be Resistant to Brand-New Antibiotics

Bacteria Can Be Resistant to Brand-New Antibiotics 谁在对抗最新的抗生素 Perhaps the chief poster child of antibiotic resistance is methicillin-resistant Staphylococcus aureus, or MRSA. The bacterium is impervious to a suite of antibiotics,

科学美国人60秒 SSS Bacteria Might Share the Blame for Eczema

Bacteria Might Share the Blame for Eczema 皮肤湿疹可能是细菌惹的祸 Your skinlike many other parts of your bodyis crawling with microscopic critters. It's a microbial zoo in a sense. Heidi Kong, a dermatology researcher at the National Ins

PBS高端访谈:鲨鱼皮可能会成为抵抗超级细菌的秘密武器

JUDY WOODRUFF: Now: sharks. Just saying the word can send shivers down the spines of some, but as Hari Sreenivasan found in this report, studying their skin could be key to fighting diease and is on the cutting edge of the larger push announced at th

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New exhibits revealing the atrocities of Japan's notorious Unit 731, infamous for its deadly and cruel human experiments, are now on display in northeast China's Heilongjiang Province. CRI's Wang Wei brings more details. Reporter: More than 10,000 ar

关于抗生素的一条好消息

An unusual method for producing antibiotics may help to solve an urgent global problem: the rise in infections that resist treatment with commonly used drugs, and the lack of new antibiotics to replace ones that no longer work. 耐受常用药物治疗

想要减肥？别穿外套

Being cold helps you lose weight, a new study found. 一项新的研究表明，寒冷可以使人减肥。 Exercise or being exposed to low temperatures creates more 'good' brown and beige types of body fat which burns calories in the body. 运动或暴

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非洲发现结核病的起源 The origins of humans have been traced to Africa. And now, so have the origins of tuberculosis. New research shows the evolutionary trees of both humans and TB have grown side-by-side. TB bacteria originated in Africa a

经济学人282:心脏疾病与微生物

Science and technology 科学技术 Heart disease and the microbiome 心脏疾病与微生物 High steaks 牛排吃越多，心脏病风险越高 Hardening of the arteries may be caused by a malign interaction of meat-eating and intestinal bacteria 肉

GRE试题七(2)

9. In recent years, there has been a dramatic decline in the population of the shrike, a predatory bird that inhabits flat land, such as farms and pastures. Some ornithologists hypothesize that this de