新东方背诵文选 L48 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 abo

VOA标准英语2013--Dogs Against Rabies in East Africa

Dogs Against Rabies in East Africa Rabies is a global health issue, claiming fifty to sixty thousand lives every year. Most of these deaths occur in sub-Saharan Africa and South Asia. The rabies virus is usually transmitted to humans through the bite

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

SCIENCE IN THE NEWS - Foods That Protect Against Disease

SCIENCE IN THE NEWS – July 16, 2002: Foods That Protect Against Disease VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abou

VOA标准英语2010年-Use of Antibiotics in Livestock Debate

Animals in many large livestock-raising operations around the world get a small but steady dose of certain antibiotics in their feed. Doctors around the world are finding it harder and harder to cure some infections. Bacteria are developing resistanc

VOA标准英语2011--Helper Serum Boosts Effectiveness of Flu

Helper Serum Boosts Effectiveness of Flu Vaccine Vaccines against swine and avian flu can be made more effective by the addition of a helper serum known as an adjuvant. The finding from a new study could let vaccine makers stretch supplies and possib

VOA标准英语2011--Study: Vitamin D is Powerful Weapon Agai

Study: Vitamin D is Powerful Weapon Against TB Vitamin D plays a critical role in fighting infection and now scientists say that it may be a powerful weapon against tuberculosis. In a study reported in the journal Science Translational Medicine, rese

英语听力文摘 English Digest 464、狗狗和环保

Scoop That Poop Actually, dog poop turns out to have a pretty big environmental impact. If you think that two in five household s in the U.S. have at least one dog and that about forty percent of Americans dont clean up after their pooches, well, all

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

中国首例寨卡病毒患者出院

NANCHANG, Feb. 14 (Xinhua) -- China's first patient with the Zika virus was discharged from hospital on Sunday. China confirmed the imported Zika case on Feb. 9. The patient, a 34-year-old man from Ganxian County in Jiangxi Province, developed a feve

让你的肌肤更显年轻的4个小秘诀!

Experts say that some of our most innocent habits could induce serious damage to our skin. With these little shifts, you'll outsmart them all and stay smooth and lovely. 专家告诉我们，一些我们平时经常忽视的生活习惯也能减少对皮

这就尴尬了! 研究表明 跑马拉松会伤肾!

Marathons can be bad for your health, scientists have warned after a study found 80 percent of competitors suffer kidney injury because of dehydration. 科学家警告称，马拉松可能会对人体产生危害。他们的研究发现，由于缺水，

乔布斯传 第231期:NeXT计算机

The Computer NeXT计算机 During the early months of NeXT, Jobs and Dan'l Lewin went on the road, NeXT公司成立的最初几个月，乔布斯和丹卢因四处奔波， often accompanied by a few colleagues, to visit campuses and solicit opinions

E. coli outbreak in Denmark under control

COPENHAGEN, June 7 (Xinhua) -- The outbreak of infections caused by E. coli bacteria may be over in Denmark as no new cases have been reported here since Friday. According to Denmark's National Serum Institute (NSI), there are 18 confirmed cases of s

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