VOA慢速英语2017 美国批准针对罕见致盲病的基因疗法

Gene Therapy for Rare Form of Blindness Approved in US American health officials recently approved the first gene therapy treatment for an inherited disease the type that can pass from parent to child. 美国卫生官员最近批准了第一种治疗遗

生活大爆炸第一季第十五集_3：The Pork Chop

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听电影学英语-食品公司 05

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AP 2012-04-29

1. Agricultural officials in California are assuring consumers the food supply is safe after discovering a cow with BSE, commonly known as mad cow disease. Officials say the cow developed the disease through a natural mutation and not from eating inf

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文本节选 Iam a dwarf. God made me this way. Im little, just like He made you have brownhair and blue eyes. Basedon birth records, its estimated that there are at least 15,000 people withdwarfism in the United States. And there are more than 200 d

SSS 2012-01-24

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

SSS 2009-12-14

Sickle cell disease is a blood disorder due to a single genetic mutation. It remains in populations because the mutation has a flip sideit helps to protect against malaria. Now another mutation has been shown to afford similar protection. Deficiency

VOA慢速英语2018 科学家对塞卡病毒和婴儿了解有多少

What Scientists Do and Do Not Know About Zika and Babies Three years ago, Brazil experienced a major sudden spread of the Zika virus. Doctors learned that the sickness can cause severe development problems for unborn babies. 3年前，巴西经历了一

SSS 2008-11-06

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Why bother with sex? Its a question thats bugged biologists since they first noticed that some critters do it and some dont. The answer theyve come up wi

SSS 2008-02-01

This is Scientific Americans' 60-Second Science. I am Cynthia Graber. This'll just take a minute. Air pollution is bad for our health, but scientists say we don't know much about the long-term effects. So researchers in Canada and the Netherlands dec

SSS 2010-09-01

Theres been an unexpected development in our understanding of drug resistance in bacteria. The accepted scenario was a simple case of evolutionary selection. In a bacterial population exposed to a killer drug, a few lucky individuals might have a gen

SSS 2011-03-21

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mark Twain called it the most delicious fruit known to men. He was talking about the cherimoya. If you never heard of it, there's good reason. It has a

NPR 2010-03-09

The Justice Department has unsealed terrorism charges against the man who has been linked to a Somali terrorist group called Al-shabaab. Authorities say he had bomb-making instructions in his possession when he was arrested. NPRs Dina Temple-Raston r

美联社新闻一分钟 2007-01-31

1. A violent day in Iraq during the holiest day in the Shiite calendar. At least 44 people were killed in a wave of violence striking several cities. Gunmen ambushed this bus carrying pilgrims, killing at least 7. 2. Barbaro could be laid to rest at

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生活大爆炸第三季第十八集_2

做你的后备 We can be your team. 就像 X教授和他的X战警 Like,uh,Professor Xavier and his X-Men. 我的确喜欢X战警 I do like the X-Men. 我看过X战警吗? Did I see X-Men? 我们上周才看过啊 Yeah,we watched it last week. 你还说

Asthma gene found in African Americans

BEIJING, August 1 (Xinhuanet) -- U.S. researchers have discovered a genetic mutation unique to African Americans that links to heighten their asthma risk, according to reports published on Sunday in the journal Nature Genetics. Researchers of Univers

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环球英语 — 101：Gecko Feet

Voice 1 Hello. Im Elizabeth Lickiss. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live Voice 1 My son is cal