VOA标准英语2009年-Research Shows Appetite Hormone May He

Experts predict a global epidemic of Alzheimer's disease as the world's population ages. Their focus is now on a fat hormone that may indicate who is more likely to get Alzheimer's or other forms of dementia. By 2050, the number of people with Alzhei

万物简史 第400期:浩瀚的海洋(19)

What little we know of them comes almost entirely from eavesdropping on their songs, but even these are a mystery. 我们对它们的一点了解，儿乎完全出自我们偷听到的它们的叫声，而连那个也还是个谜。 Blue whales will

Another Danger of Hormone Replacement Therapy

Broadcast: June 11, 2003 By Nancy Steinbach This is the VOA Special English Health Report. New research has found another danger of hormone replacement therapy1. The therapy studied involved the hormo

Hormone Therapy Raises Blood Clot Risk in Menopausal Women　

By David McAlary A new U.S. study highlights more negative health effects women might suffer if they take hormone supplements to combat the symptoms of aging. We know that taking the female hormones e

科学美国人60秒 SSS 2014-08-26

Based on the sheer number of ants that invaded my home this summer, it seems hard to believe, but a new study finds that the numbers of invertebrates, which include any animal without a spine, has fallen by nearly half over the past thirty-five years

SSS 2012-05-30

This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You've probably seen clouds of insects swirling round a streetlamp at night. But something you may not have noticed is that streetlights attract bugs to the gr

胡敏读故事记单词托福词汇133

An irreverent attitude from inverse to irreversible Smithers, dont you think its ironic that your irregular night-time activities are in inverse proportion to your reputation as an expert in the area of invertebrate research? the director of the aca

国家地理:Octopus Loses Arm 章鱼逃命大法

Here in the Timor Sea off northern Australia, take a look at a creature that seems to have the soul of a riverboat gambler. It moves through turf dominated by large hungry predators, and it fights these predators in a way that will astound you. This

2007年VOA标准英语-Consumers Call for Ban on Growth Hormone in Mil

By Melinda Smith Washington 24 April 2007 One of the largest groups of milk producers in the United States has set an August first deadline for its members to stop treating their cows with a growth hormone, or pay more to get their milk to market. Th

SSS 2008-04-17

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

SSS 2009-06-02

Leptin is a hormone made by fat cells that tells you when you're full. If you didn't have leptin---and some people don't---youd eat way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kid

HEALTH REPORT - Hormone Replacement Therapy Linked to Blood

HEALTH REPORT - Hormone Replacement Therapy Linked to Blood Clots By Cynthia Kirk Broadcast: Wednesday, October 13, 2004 This is Gwen Outen with the VOA Special English Health Report. American researc

VOA慢速英语2015 蠕虫准备在太空中飞行

Worms Get Ready to Fly in Space 蠕虫准备在太空中飞行 Humans are well-equipped for life on Earth. But in space, it is a different story. Low or zero gravity changes how the blood flows and causes motion sickness, muscle loss and tiredness. W

VOA慢速英语2016 夏威夷海岸发现巨型海绵动物

Minivan-sized Sponge Found off Hawaii Coast 夏威夷海岸发现巨型海绵动物 It might be hard to imagine, but scientists found a sponge the size of a minivan in deep waters near the Hawaiian Islands. 或许难以想象，科学家在夏威夷群

VOA标准英语2011--Hormone Could Restore Fertility in Lean

Hormone Could Restore Fertility in Lean Women Some women with very low body fat - such as athletes and professional dancers - stop menstruating and have an increased risk of bone fracture. Now, there's increasing evidence that hormone treatments can

VOA标准英语2009-Fat Producing Hormone May Lower Risk of Type

By Melinda Smith Washington 14 November 2009 The World Health Organization (WHO) estimates that at least 180 million people have diabetes. Roughly 90 percent have what's called Type Two diabetes, caused by the body's ineffective use of insulin. Rese

VOA标准英语2014--Humans Driving Massive Animal Extinction

Humans Driving Massive Animal Extinction Earth is in the midst of its sixth mass extinction of animal species -- the first to be caused by humans -- in the past half-billion years, setting off a downward spiral in the environment and human health, wh

雅思阅读词汇：热带雨林(3)

extinction n. 消失，消灭 extinguish vt.消灭，熄灭 falcon n.[动](猎鸟用的)猎鹰 fall victim to 成为...的牺牲品 far-sighted founders 具有远见的奠基人 fig n. 无花果 firew

【英语时差8,16】章鱼使用工具-上

Chimps do it. Dolphins do it. Even crows that want to catch fish do it. But an octopus? Yes, it seems the smartest member of the invertebrate world has learned how to use a tool. Octopuses have a reputation for being clever. They can figure out how t

托福听力分类场景词汇—动物类

托福听力背景知识：托福听力中有大量的专业及学术词汇，这些词汇大多依托于听力背景知识，如果考生能够事先了解一些托福听力的背景知识，对听懂听力对话及段子有很有帮助。 Darvinism