VOA慢速英语2009-Health Report - New Test Could Speed Tuberculosi

This is the VOA Special English Health Report. Tuberculosis killed one million three hundred thousand people around the world in two thousand seven. In addition, almost half a million people who were infected with tuberculosis and with H.I.V. also d

2007年VOA标准英语-Antibiotic Resistance Fast-Growing Problem Worl

By Carol Pearson Washington 28 February 2007 watch Antibiotic Resistance report Penicillin and Erythromycin are examples of antibiotics that used to be one-time miracle cures. These drugs and other antibiotics are now less effective because bacteria

美国国家公共电台 NPR Doctors Test Bacterial Smear After Cesarean Sections To Bolster Babies' Microbiomes

STEVE INSKEEP, HOST: Some new parents have started giving their newborns what's being called a bacterial baptism. The idea is to try to help their babies develop healthy microbiomes, the collection of friendly bacteria that inhabit everyone's bodies.

美国有线新闻 CNN 美国食物垃圾占供应量40% 新技术将垃圾变为电力

AZUZ: According to the United Nations, food waste is defined as food that's initial safe for people to eat, but it doesn't get eaten because it's left to spoil or it's thrown out. The U.S. government estimates that food waste in America could be as h

科学美国人60秒 SSS High Fiber Diet Keeps Intestinal Walls Intact

Your nose may be the first place you think of as a source of mucus. But mucus is a major player in your gut, too. There's antimicrobial peptides and proteins that are present in there. Bacteria live in there and forage on the carbohydrates. And it's

[科学美国人60秒] SSS 2015-09-22

The dust that accumulates in the corners of your house does more than cause allergies and aggravations. It's also teeming with clues about where you live and who you live with. That's the finding ofa study in the Proceedings of Royal Society B. Resea

《英语流行话题阅读:语境识词4500》83 Where Does Bad-breath Odor Come From?

Where Does Bad-breath Odor Come From? We all have offensive breath at one time or another. In most cases, offensive breath originates from bacteria in the mouth, although there are other more surprising causes. Until a few years ago, the most doctors

英语听力文摘 English Digest 557、为何我们的汗水不好闻？

Why Does Sweat Smell So Bad? Our bodies have two main kinds of sweat glands. The sweat glands that are distributed over most of the body produce an innocent, clear sweat thats more than ninety-nine percent water. As this watery sweat rinses your skin

英语听力文摘 English Digest 608、大自然中的DNA交易

Wouldnt it be great if we could trade genes with other species? For example, suppose you could trade the family cat your genes for intelligence for its genes for physical coordination! Well, okay, thats not likely to happen anytime soon. But DNA trad

英语听力文摘 English Digest 613、酸奶中的神秘液体

The Mysterious Liquid In Yogurt When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from? To solve the mystery of the liqui

VOA慢速英语2009-Health Report - Laying the Roots for Healthy Tee

This is the VOA Special English Health Report. Bad teeth can be painful -- and worse. They can even be deadly. Infections of the gums and teeth can release bacteria into the blood system. Those bacteria can increase the chances of a heart attack or

[科学美国人60秒] SSS 2015-12-01

Whats the lively in your kitchen? In terms of bacteria is it the the dish or maybe your coffee maker. Because even known caffeine has anti-bacteria effects, it turns out that machine can hold back majority of bacteria, including some pathogenic speci

英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-4

Water allows the sand grains to flow to gather and intermingle and form more complex structures. In the same way, water acts like a cocktail mixer, allowing the atoms and molecules to come together, and also may form the building blocks of life. All

英语听力：2013-04-21 恐龙之战之极限生存 Extreme Survivors—15

But with both parents out searching for food, the nest is left unguarded and exposed. Triceratops may be a plant eater, but with a defenseless baby T. Rex around, it'll make an exception. Quetzalcoatlus is the largest flying carnivore in Earth's hist

英语听力文摘 English Digest 456、纠结：洗手用什么？

Do hand sanitizer s work any better than soap and water? Yal: We re-enjoy our hero, the handsome Donne , in the kitchen where he's preparing baked Alaska for his lovely bride. Don: Yes, yes. The way to a woman's heart is through her stomach. Y: But w

英语听力文摘 English Digest 64、不易消化牛奶怎么办?

you shouldnt quit drinking milk. It is a good source of calcium after all.what you should do is stop consuming dairy on an empty stomach period. On an empty stomach, dairy moves faster through your intestines and is more likely to cause you intoleran

英语听力文摘 English Digest 70、细菌可除臭?

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

学个词Learn a Word 第1137期 Responsible

今天我们要学的词是responsible。 Responsible, 有事发原因的意思。 Firefighters believe that vagrants were responsible for the downtown fire, 消防队员认为，市中心大火的肇事者是居无定所的游民。 最新研究发现

英语听力文摘 English Digest 331、洗手误区

Dirty Hands 洗手误区 Most people believe that regular hand-washing is the best way to prevent infection s . And theyre right: hand-washing does prevent certain infection s , but too much washing can actually help some infection s along.Whats goin

英语听力文摘 English Digest 210、细菌里的防护栏

Fencing in Bacteria 绿脓杆菌（p.aeruginosa）或称铜绿色假单胞菌，是一种致病力较低但抗药性强的杆菌。广泛存在于自然界，是伤口感染较常见的一种细菌。能引起化脓性病变。感染后因脓汁和渗出