新东方优美背诵短文50篇 Unit48: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 u

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

英语听力：听电影学英语-高校男生/历史男孩 15

[00:06.14]See, what I didn't want was to turn out boys 我不想去培养这样的一批人 [00:10.22]who would claim in later life to have a deep love of literature. 他们以后才会说深爱着文学 [00:12.82]Or who would talk in their middle ag

创新英语-Shopping Carts Covered in Bacteria

A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r

SSS 2008-09-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Sometimes a bit of bacteria can be just what the doctor ordered. If you prize yogurt for its active cultures, you know what Im talking about. Now a new s

SSS 2010-03-16

They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists at the University of Colorado in Boulder have been able to identify individuals ba

英文书摘精选 The History Of Smallpox天花的历史

The History Of Smallpox天花的历史（双语） In Shakespeares day, wishing a pox on someone was a terrible curse. Ten percent of the population in 17th century London died gruesomely of smallpox, a virus spread easily by airborne particles or co

英语听力文摘 English Digest 612、可怕的天花

The History Of Smallpox In Shakespeares day, wishing a pox on someone was a terrible curse. Ten percent of the population in 17th century London died gruesomely of smallpox, a virus spread easily by airborne particles or contaminated clothing. Infect

VOA常速英语2008年-Antibiotic-Resistant Bacteria Poses Threat to P

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

CNN 2012-01-12

Next time your parents tell you a penny save does a penny earn,you tell them not always!!We're gonna tell you how much more a peny is worth a little later on today.CA, welcome to a new week of CNN student news. First up today,we are talking about U.S

VOA慢速英语2011--Gut Bacteria: We Are What We Eat

HealthReport-GutBacteria:WeAreWhatWeEat This is the VOA Special English Health Report. The human digestive system is full of bacteria -- mostly good bacteria. These organisms help break down food so the body can use the nutrients. Scientists are expl

Experts: Let Produce Dry Out to Avoid Bacteria

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

2006年VOA标准英语-Scientists Study New Technique to Vaccinat

By David McAlary Washington 23 May 2006 Chickens at US farm Scientists have developed an efficient, cheap way to vaccinate birds against avian influenza and possibly prevent the spread of the deadly H

VOA标准英语2012--Global Plan to Control Measles Launched

Global Plan to Control Measles Launched Measles, one of the most infectious diseases on the planet, is a leading cause of death and disability among children worldwide, especially in the developing world, even though a safe and cost-effective vaccine

美国国家公共电台 NPR Invisibilia: Inspired By 'American Idol,' Somali TV Show Aimed To Change The World

ARI SHAPIRO, HOST: NPR's podcast Invisibilia is back with its fourth season. And today they have the story of a reality show in the Horn of Africa that set out to change our culture. It led NPR's Alix Spiegel to ask, can telling a certain kind of sto

2006年VOA标准英语-Millions Benefit From Measles Campaign in Niger

By Gilbert da Costa Abuja 08 October 2006 Five year-old Abubaker Kabir who is suffering from measles receives medication while his mother Ladi Kabir, left, watches in Kano hospital, Nigeria (File photo) In Nigeria, health officials who have fanned o

经济学人:人力资本:人的捍卫者(1)

Economics Brief 经济学简介 Six Big Ideas 六大经济理论 Human capital: The people's champion 人力资本：人的捍卫者 Gary Becker made humans the central focus of economics. The second in our series on big economic ideas. 贝克尔让人

Death Toll Rises From Deadly European Bacteria

European and World Health Organization scientists say a deadly outbreak of E. coli bacteria that has killed 18 people is a rare and virulent(致命的) strain of the bacteria. The latest victim died Wednesday night in Germany. The United Nations agen

CCTV9英语新闻：Gov't suspends China's 3 major Hep. B vaccine makers

By CCTV Tang Bo Chinas three major hepatitis B vaccine makers have been ordered to suspend production. The countrys Food and Drug Administration made the announcement after the companies failed to get certified under the new Pharmaceutical Products s

Using bacteria to generate energy hopeful

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Ac