Health Report - Laying the Roots for Healthy Teeth in Young Children 健康报道 - 健康护齿从儿童做起 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 Bad teeth can be painful -- and worse. The

发表于:2018-11-27 / 阅读(384) / 评论(0) 分类 2011年VOA慢速英语(十二)月

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

发表于:2018-11-28 / 阅读(447) / 评论(0) 分类 新概念优美背诵短文50篇

And our first stop is in Southern Asia, where massive flooding tied to monsoon season is soaking parts of Nepal, as well as areas of India and neighboring Bangladesh. Heavy rains are typical in this region during August, which is when the monsoon rai

发表于:2018-12-02 / 阅读(69) / 评论(0) 分类 CNN美国有线新闻2017年8月

AZUZ: Up next today, we're taking you to Yemen. It's one of the world's countries that's currently struggling with a civil war. It's located in the Middle East. The fighting has been going on there for more than two years and the side effect of all t

发表于:2018-12-20 / 阅读(62) / 评论(0) 分类 CNN美国有线新闻2017年10月

This is a white-footed mouse in Lyme Connecticut. This is the bacterial disease inside the mouse in Lyme Connecticut. These are the deer ticks sucking the blood of the mouse that has the bacterial disease in Lyme Connecticut. This is the tick that's

发表于:2018-12-30 / 阅读(148) / 评论(0) 分类 国家地理2007年

相信吗?你身上寄生的细菌群有辨识身份的功能。 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 [Noah Fierera e

发表于:2019-01-02 / 阅读(137) / 评论(0) 分类 60秒科学

This is Scientific Americans 60-Second Science. Im Gretchen Cuda Kroen. Got a minute? Nasty bacteria cling to the surfaces of countertops. They also stick to medical devices - like catheters - that are placed inside the human body, where they can bec

发表于:2019-01-08 / 阅读(54) / 评论(0) 分类 Scientific American(十一)月

This is the VOA Special English Health Report. Pope Benedict named five new saints on Sunday, including a Catholic clergyman who cared for people in a leper colony. A picture of Father Damien at the ceremony making him a saint in Vatican City Father

发表于:2019-01-11 / 阅读(77) / 评论(0) 分类 VOA慢速英语2009年(十)月

Dump Provides Livelihood, Brings Perils to Nairobi Poor Sixteen-year-old Joseph is one of the many children working at the Dandora dump site. He has been here since January, when he left school because his family could not afford his school fees. Hes

发表于:2019-01-13 / 阅读(56) / 评论(0) 分类 VOA标准英语2012年(六月)

Discovery Could Lead to New Drugs to Block Deadly Viruses Viruses are strange things. Though there is some scientific question about whether viruses are alive or not, they do have a basic genetic structure that allows them to be biologically active.

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2013年(三月)

Global Trade Carries Risk of Pests More than one trillion dollars worth of agricultural products is traded every year. But as countries buy and sell fruits, vegetables, timber and other products, they also may be putting domestic plants at risk. That

发表于:2019-01-14 / 阅读(62) / 评论(0) 分类 VOA标准英语2013年(四月)

Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system

发表于:2019-01-14 / 阅读(87) / 评论(0) 分类 VOA标准英语2013年(四月)

Rare Disease Finds Fertile Ground In Rohingya Refugee Camps SCOTT SIMON, HOST: A diptheria outbreak is worsening in Bangladesh in what's rapidly become the largest refugee camp in the world. The camp is home to some of the hundreds of thousands of Ro

发表于:2019-01-16 / 阅读(88) / 评论(0) 分类 2018年NPR美国国家公共电台1月

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

发表于:2019-01-20 / 阅读(90) / 评论(0) 分类 2017年科学美国人(七)月

By Selah Hennessy Goma, DRC 19 December 2007 The international medical organization Doctors Without Borders says the humanitarian situation in the Democratic Republic of Congo is rapidly deteriorating. An armed conflict in the east of the country has

发表于:2019-01-31 / 阅读(114) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Melinda Smith Washington, DC 04 January 2007 watch Meningitis in Children Meningitis can be infectious, particularly when the disease is spread among large groups of people living in crowded conditions. It is most prevalent in sub-Saharan Africa,

发表于:2019-01-31 / 阅读(110) / 评论(0) 分类 2007年VOA标准英语(一月)

Anthrax Outbreak In Russia Thought To Be Result Of Thawing Permafrost STEVE INSKEEP, HOST: Russia is fighting a mysterious outbreak of disease. Dozens of people are hospitalized due to anthrax. Yes, anthrax, the bacterial infection so deadly that cer

发表于:2019-02-13 / 阅读(63) / 评论(0) 分类 2016年NPR美国国家公共电台8月

Dialogue 1 Mark and Jingjing meet for lunch. 马克和京晶约吃午餐 Mark: How goes it, Jingjing? 马克:最近怎样? Jingjing: I'm doing pretty well. It sounds like you've caught a cold, though. 京晶:我还不错。倒是你听声音好像

发表于:2019-02-13 / 阅读(120) / 评论(0) 分类 英语PK台

Saliva Protein Might Inhibit Intestinal Anarchy 唾液蛋白可能抑制肠道无序状态 Every day, you produce one to two liters of spit. It kick-starts digestion and helps you swallow. And it helps prevent bacterial infection in your mouth. 每天,

发表于:2019-02-14 / 阅读(64) / 评论(0) 分类 2018年科学美国人3月

The antimicrobial triclosan is a common ingredient in hand soap. But it's also found in shampoos, deodorants, toothpaste, even lip gloss. So it's not too surprising that triclosan also shows up in blood, urine, breast milk and mucus. But here's the w

发表于:2019-02-14 / 阅读(181) / 评论(0) 分类 2016年Scientific American(八)月