英语语法：219 Active Voice Versus Passive Voice

by Mignon Fogarty Today's topic is active voice versus passive voice. The podcast edition of this article was sponsored by GoToMeeting. With this meeting service, you can hold your meetings over the Internet and give presentations, product demos and

木乃伊包含了结肠癌的线索

Mummies Contain Clues to Colon Cancer 木乃伊包含了结肠癌的线索 From VOA Learning English, this is the Health and Lifestyle report. Colon cancer is linked with obesity, lack of exercise, and a poor diet high in processed foods. However, sc

TED演讲:和老年痴呆症说再见(5)

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题，这一好消息确实振奋人心， because it turns out that the way we live can influence the accumulation of amyloi

SSS 2008-05-28

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

SSS 2010-05-27

This is Scientific American's 60-Second Science, I'm Steve Mirsky. Got a minute? A strain of mutant mice groom compulsively till they seriously injure themselves. The condition is considered a good animal model for OCD, and its similar to the human d

SSS 2009-02-19

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Time to bring back the Office of Technology Assessment. The OTA was created in 1972 to provide Congress with an objective analysis of complex scientific and technologi

为什么总感觉睡不够?

人的一生中，将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时；即使成年后，每夭至少要睡 6～7小时。 不管睡眠时间长短如何，睡觉看来是人必不可少的行为。这一点

SSS 2008-05-20

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

SSS 2008-06-13

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. If evolution weeds out detrimental traits, why do some seem to stick around? Well what's bad in our current environment may have been good in the conditi

Gene Mutation Linked to Type 2 Diabetes

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

VOA慢速英语 2008 0513b

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

VOA慢速英语2016 铜能杀死细菌和病毒

Copper Metal Kills Viruses on Contact 铜能杀死细菌和病毒 Even in the world of medicine, what is old is new again. 医药界也刮起了复古风。 Thousands of years ago, Egyptians used it to sterilize drinking water. Ancient Romans, Aztecs

经济学人106:口吃科学 演讲疗法

Science and Technology The science of stuttering Speech therapy 科技 口吃科学 演讲疗法 Unravelling the mystery of faltering speech 解秘演讲时的口吃 DOWN the ages stuttering has been blamed on many things. 多年来，口吃可以归咎

经济学人239:癌症遗传学 基因疗法

Science and technology 科学技术 Cancer genetics 癌症遗传学 Gene therapy 基因疗法 Genetic mutations predict which cancers will respond to treatment 基因突变将预测某种治疗会对哪些癌症起作用 THE International Cancer Geno

爆红喵星人：永远都是蠢萌的站姿

A cat who prefers to stand up on two paws has become the latest feline internet sensation, thanks to his super strong back legs. 最近有一只猫在网上迅速蹿红，它用两只后腿站立的萌姿俘获了大批网友。 George, the Munchkin-

TED演讲:昭示长寿的实验(2)

Okay. 好了 So what is the daf-2 gene? 那么daf-2基因到底是什么？ Well as you know, genes, which are part of the DNA, 正如大家所知，基因是DNA的一部分 they're instructions to make a protein that does something. 它们是经编码

【英语语言学习】女儿的遗传缺陷

SCOTT SIMON, HOST: Some people in life can see whole worlds in small things. Hugh Rienhoff can see it in a molecule called transforming growth factor-beta 3. In 2003, his daughter, Beatrice, was born with a few noticeable abnormalities. Her eyes were

为何人类爱吃肉

为何人类爱吃肉 对多数人类来说，肉的味道非常美妙。众多的美食中，为何我们对它情有独钟呢？ It is no less remarkable for people today, even those of us whose tastes run more to sirloin. Because if you look at wh

人物:两次战胜癌症(1)

Surviving Cancer Twice 两次战胜癌症 After overcoming ovarian and breast cancer, the actress opens up about getting healthy, returning to work and the health challenge she still faces 在克服了卵巢癌和乳腺癌之后，这位女演员开始

人物:狗狗的DNA检查

Who do you think your pet is? Learning from Your Dog's DNA 你认为你的宠物是谁？狗狗DNA中的发现 A simple cheek swab can reveal your dog's ancestry, provide insight into its health and even help explain its behavior 擦一下狗的脸就可