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

SSS 2008-05-21

This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.

SSS 2008-06-30

This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its

科学美国人60秒 SSS Last Woollies Had Mammoth Mutations

Last Woollies Had Mammoth Mutations 长毛象灭绝的真正原因是 In their heyday, woolly mammoths blanketed the Siberian steppe, Alaska and large parts of North America. But by 10,000 years ago, warming climates had turned many of the grasslands

【英音模仿秀】为垃圾DNA正名

模仿文本： That was a headline on September 5th, the end of the concept of junk DNA. Actually, geneticists had long abandoned the idea that our genomes are riven with all the rubbish. But what was once called junk was largely still unexplored. 译

经济学人02:物理学与生物学的碰撞 优质大米培植

Science and technology. 科技。 Salt-tolerant rice. 耐盐大米。 Nuclear-powered crops. 核动力粮食。 Physics meets biology in a project to breed better strains of rice. 物理学与生物学的碰撞--优质大米培植。 THOSE who turn t

小紫带你轻松学美剧 第23期

《绝望主妇》原句： We have to get rid of the car. But we cant sell it. The police might find it, and there could be DNA. 单词词组讲解 Get rid of sth/somebody 摆脱 发音讲解 Get rid of 的t吞音，d连读 最后翻译: 我们必须把

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

与美国小学生一起学英文第12册 第7期:突变

Mutation 突变 Do you know about mutations? 你知道突变吗？ A mutation happens when the DNA structure in a gene changes. 当基因的DNA结构发生变化时就会发生突变。 Once a mutation happens, the change can't be reversed. 突变一旦

VOA标准英语2010年-Scientists Take Steps Toward Universal

Each year, scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season. Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety. Now,

VOA标准英语2012--Birth Defects Rise in Former Iraqi Battleground

Birth Defects Rise in Former Iraqi Battleground Five-year-old Lujane is one of hundreds of children in Fallujah who have been born since 2004 with severe birth defects. Her father says Lujane suffers from multiple afflictions that Iraqi doctors strug

【英音模仿秀】癌症不是一种病

❤ 模仿文本：Well we know that all cancers originally arise from one abnormal cell that has gone to the bad that's started to grow when it shouldn't grow to proliferate and to invade. And the reason that that happens is because mutations have a

经济学人94:癌症治疗 即将实现对症下药

Cancer therapy 癌症治疗 Taking aim sooner 即将实现对症下药 If personalised medicine is to achieve its full potential, it should be used earlier on in clinical trials 若想让个体化药物发挥最大潜力，那就应该尽早将它投入

VOA慢速英语2010年-Agriculture Report_ Mapping the Way to

This is the VOA Special English Agriculture Report. Soybeans are eaten by people and fed to animals. Some farmers grow them to replace lost nitrogen in the soil. Soybeans were first grown in Asia thousands of years ago. Now scientists have a full gen

万万没想到：让人年轻2岁的秘诀竟然是它！

Scientists say they have made a leap in knowing why some people retain their youthful looks while others age badly. 科学家称他们已经在探究为什么有的人青春长驻而另一些人逐年老去这一问题上取得突破性进展。 They

科学家最新研究 人类寿命上限120岁

The number of people living past 100 has soared by 71 per cent in the past decade. And while one expert believes this figure will continue to rise, he stated that anyone hoping to live for double or triple this time will be disappointed. Speaking at

Scientists solve mystery over copycat butterflies

CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,

TED演讲:出身决定命运?（1）

I want you to imagine two couples 我希望大家设想一下，两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天，相同的时刻 each conceiving a baby -- okay? 每对怀上了

经济学人:自闭症 为什么不是雨女

Autism 自闭症 Why it's not Rain Woman 为什么它不是雨女 Women have fewer cognitive disorders than men do because their bodies are better at ignoring the mutations which cause them 与男性相比，患有认知障碍的女性较少，因为她

经济学人:熊猫遗传学:熊猫的第二拇指(1)

The anatomy-related adaptations were those that seemed to control the development of the pandas second thumbs. 与生物体结构相关的基因有可能控制熊猫第二拇指的生长。 Two genes in particular, DYNC2H1 and pericentrin, have mutat