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The sign to America apart guess is response by audible.com. A little more online resource for access out your books and more, and now audible.com is for sign American listeners free out of your notebook for your choice. For details, go to audible.com
Scientific American(十二)月
I have been looking forward to this. Our next guest inspired another than Oprah, and more than 300 of her staff are to go on a vegan diet for a week. That means no animal products, no meat, eggs or dairy. In her new best-selling book, I read it over
访谈录2011年
Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a
2017年Scientific American(二)月
Peanuts are one of the worlds most nutritious foods. 花生是世界上最有营养的食品之一。 Peanuts contain pound for pound more protein, vitamins, and minerals than beef liver and more fat than heavy cream. For approximately .5% of America
初学者听力文摘精选
Pre-Listening Vocabulary dominant: strong; used most often keratin: a fibrous protein found in hair, nails, and the outer layer of skin puberty: the growth period during which a childs body reaches sexual maturity nail-biting: causing anxiety or nerv
趣谈英语
What Is Progeria? Progeria was first described in the nineteenth century. The mysterious disease is often thought of as premature aging. Children with progeria are normal for their first year of life, but then develop medical problems normally seen i
英语听力文摘 English Digest
科学家发现杀害疾病传播型蚊子的新方法：干扰其泌尿过程。 Message to Mosquitoes: Urine Trouble You know how uncomfortable it feels when you really have to go to the bathroom? And you have to hold it in? If researchers get thei
60秒科学
HEALTH REPORT – December 4, 2002: Test Warns of Heart Attack Risk By Jerilyn Watson This is the VOA Special English Health Report. Since the nineteen-fifties, American doctors have tested their pati
健康与环境
This is the VOA Special English Health Report. Cardiovascular disease is the world's leading cause of death. It includes heart attack, stroke and high blood pressure. Over the years, researchers have identified several substances in the blood that c
VOA慢速英语2009年（七）月
This is the VOA Special English Health Report. Rheumatoid arthritis is a painful disease that can destroy joints. Women are three times more likely to get it than men. Rheumatoid arthritis is considered an autoimmune disease, a disease where the body
2010年VOA慢速英语(五)月
SCIENCE IN THE NEWS - A Possible Blood Test for Alzheimers Disease JUNE SIMMS: This is SCIENCE IN THE NEWS, in VOA Special English. Im June Simms. SHIRLEY GRIFFITH: And Im Shirley Griffith. Today we tell about Alzheimers disease. More than a century
2012年VOA慢速英语(三)月
Health Report - Want to Lose Weight? Try Counting Calories This is the VOA Special English Health Report. How many calories we eat appears more important than what we eat when we eat too much. That was the finding of a new study that should be satisf
2012年VOA慢速英语(一)月
Ethiopia Cuts Child Deaths by Two-Thirds埃塞俄比亚三分之二削减儿童死亡 28 February, 2014 2014年2月28日 Hello again, and welcome to As It Is from VOA Learning English. I'm Steve Ember in Washington. 大家好，欢迎，因为它是来
2014年VOA慢速英语(三)月
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
VOA标准英语2012年(一月)
Looking to lead a more eco-friendly lifestyle? You could start by cutting back on meat. A new nitrogen footprint calculator shows you the impact your diet has on the environment. You may have heard of the concept of a carbon footprint. That's how muc
VOA标准英语2011年(三月)
粮农组织倡导将昆虫作为食物 Even though insects are a delicacy in some parts of the world,to many people, the thought of eating them is downright disgusting. 尽管对于世界上一些地区来说昆虫是一种美味，但一想到吃虫子
VOA标准英语2016年(二月)
Sepsis is a potentially deadly inflammatory condition caused by infections. Muppet creator Jim Henson was a famous victim. Proper treatment of sepsis can require knowing what bacteria or virus caused the infection. But the identification can take day
2014年Scientific American(九)月
By Carol Pearson Washington 09 April 2008 Diabetics have a greater than average chance of having a heart attack or stroke. But new research indicates that lowering blood pressure and cholesterol below recommended guidelines seems to reduce these risk
VOA常速英语2008年（四月）
A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar
VOA标准英语2008年（十月）
The Denatured Egg White 煮鸡蛋还有那么多学问哪?在煮鸡蛋过程，鸡蛋会发生哪些变化呢? 蛋白质变性（protein denaturation）是指蛋白质在某些物理和化学因素作用下其特定的空间构象被改变，从而导致
英语听力文摘 English Digest