标签：genes 相关文章

SSS 2010-09-27

This is Scientific Americans 60-Second Science, Im Christopher Intagliata. Got a minute? City living has obviously influenced human cultureas have often been noted, how you gonna keep em down on the farm after theyve seen Paree'? But urban life may h

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(九)月

SSS 2009-03-24

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Understanding all the genes and molecules involved in human disease is quite a challenge. Thats why scientists study model organisms, like flies and worm

发表于:2018-12-24 / 阅读(97) / 评论(0) 分类 Scientific American(三)月

SSS 2009-05-26

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. As we recover from the holiday weekend, there is some intoxicating news on curbing the effects of alcohol. In the May 29th issue of Cell, scientists report

发表于:2018-12-24 / 阅读(67) / 评论(0) 分类 Scientific American(五)月

美国英语听力80篇1 Lesson18

[00:07.05]The American company Monsanto has announced what it calls a major development in efforts to identify all of the genes found in rice. [00:18.49]It says scientists working in the United States have produced the first plans for a genetic map o

发表于:2018-12-26 / 阅读(87) / 评论(0) 分类 美国英语听力80篇

经济学人:迁徙美洲:检查站(1)

Science and Technology 科技 Peopling the Americas: Checkpoint 迁徙美洲：检查站 The first migrants to the new world had to wait 8000 years to be admitted. 新大陆的第一批移民在8000年后才被公认。 How America was originally col

发表于:2018-12-29 / 阅读(51) / 评论(0) 分类 经济学人科技系列

有声英文阅读-“躁”化弄人

Understanding Anxiety Disorders Anxiety disorders are the most widespread of emotional disorders. They affect millions of people every year, and cause their victims to suffer from tremendous worry and

发表于:2018-12-31 / 阅读(63) / 评论(0) 分类 有声英文阅读

有声英文阅读-“混”出名堂

Eurasians in the Sportlight “混”出名堂 Can an ethnic mix be trendy? At the moment, Eurasians are enjoying an unprecedented high profile in the news, in advertising, and in the entertainment in

发表于:2018-12-31 / 阅读(78) / 评论(0) 分类 有声英文阅读

有声英文阅读-早起的虫儿被鸟吃？

Why Stay in Bed? Some people are night owls; some are early birds. You probably know which one you are, but did you know that there may be a biological reason why some people are out of bed at dawn wh

发表于:2018-12-31 / 阅读(145) / 评论(0) 分类 有声英文阅读

经济学人:性选择与进化 美丽的雌性

Sexual selection and evolution 性选择与进化 My pretty maid 美丽的雌性 A glamorous raiment sometimes helps a female bird as much as it helps a male 华丽的外表有时给雌性的益处和雄性一样多 HOW the peacock got his tail is on

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 经济学人科技系列

英语音频杂志：双生子

Twins by Richard Sidaway What do the singer Alanis Morissette, the supermodel Gisele Bundchen and the ex-Secretary General of the United Nations Kofi Annan all have in common? The answer is, they all have a brother or sister who was born on the same

发表于:2019-01-02 / 阅读(196) / 评论(0) 分类 英语音频杂志

菌类植物产生于几十亿年前

> 58 菌类植物产生于几十亿年前 DATE=8/24/01 TITLE=ENVIRONMENT REPORT - Early Plant Study BYLINE=Cynthia Kirk （Start at 1’00” ）This is Bill White with the VOA Special English ENVIRONM

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 自然探索

Ways to Improve Rice

Broadcast: January 7, 2003 By Mario Ritter This is the VOA Special English Agriculture Report. Rice is the world's most important crop. Much has been done to increase its productivity. Modern genetic

发表于:2019-01-02 / 阅读(95) / 评论(0) 分类 VOA2003（上）-社会广角

VOA慢速英语2018 一万年前的英国人是黑皮肤蓝眼睛

Tests Suggest 10,000-Year-Old Brit Had Dark Skin, Blue Eyes Genetic material from a 10,000-year-old skeleton suggests the oldest-known Briton had dark skin and blue eyes. 根据一具1万年前的骨骼中提取的遗传物质表明，人们所知最古

发表于:2019-01-03 / 阅读(151) / 评论(0) 分类 2018年VOA慢速英语(二)月

TED演讲:说服 让利他精神成为你的准则(4)

They have not been trained. 他们没接受过训练。 So do you need 50,000 hours of meditation? No, you don't. 你需要五万小时的冥想吗？不，不需要的。 Four weeks, 20 minutes a day, of caring, mindfulness meditation already brings

发表于:2019-01-03 / 阅读(77) / 评论(0) 分类 TED演讲科学篇

SSS 2008-07-21

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. You may have heard of genetic research being done in Iceland. Its a rich venue, because Icelanders have a limited gene pool and highly detailed genealogi

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(七)月

SSS 2009-11-09

Evolution continues today, and sometimes we can watch it happening. Researchers in the November 6th edition of the journal Science say that they caught in the act a population of butterflies in Ecuador potentially diverging into two distinct species.

发表于:2019-01-08 / 阅读(89) / 评论(0) 分类 Scientific American(十一)月

SSS 2009-09-16

Now, heres something you dont see every day: scientists cure color-blind monkeys. According to a report published online in the journal Nature, researchers have used gene therapy to allow color-blind squirrel monkeys to look at their fruit in a whole

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(九)月

SSS 2009-03-18

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Seventy percent of all antibiotics in this country go to livestock like pigs and chickens. And concern is growing about drug-resistant bacteria that sp

发表于:2019-01-08 / 阅读(106) / 评论(0) 分类 Scientific American(三)月

SSS 2010-07-13

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-08 / 阅读(83) / 评论(0) 分类 Scientific American(七)月

SSS 2012-05-11

This is Scientific Americans 60 second Science, I am Sophie Bushwick, got a minute? One family generally dines on Chinese takeout while their neighbors eat home-cooked meatloaf. You say potato, I say potahto. And humans arent the only primate species

发表于:2019-01-08 / 阅读(91) / 评论(0) 分类 Scientific American(五)月
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