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

发表于:2018-12-24 / 阅读(109) / 评论(0) 分类 Scientific American(一)月

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

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

[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

William: Hello, and welcome to Entertainment, Im William Kremer. Today, Im very excited, because were going to be hearing from one of my very favourite comedians Gene Wilder. If youre a fan of the crazy comedies of Mel Brooks, youll know Gene Wilder

发表于:2018-12-28 / 阅读(136) / 评论(0) 分类 英语听和读

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

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

Experimental Therapy Saves Boy With Rare Disease From VOA Learning English, this is the Health Lifestyle report. It is one of the worst things a parent can imagine. Your child is sick, and suffering in terrible pain. No medical treatments seem to hel

发表于:2019-01-02 / 阅读(77) / 评论(0) 分类 2017年VOA慢速英语(十二)月

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

Katie Couric: At only 11 years old. Annasophia Robb adds in the second major film to her resume. You may remember her, from the heart warming tale because of Winn-Dixie, she stared as Opal, a girl who

发表于:2019-01-06 / 阅读(87) / 评论(0) 分类 访谈录

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

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

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

This is the VOA Special English Agriculture Report. Cotton plants Bollworms are a traditional threat to cotton crops. Young ones feed on the boll, the part of the cotton plant that contains the seeds. A bacterium known as Bt is able to kill bollworm

发表于:2019-01-11 / 阅读(84) / 评论(0) 分类 VOA慢速英语2008年(十一)月

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Doug Johnson. VOICE TWO: David Massey, a student at the West Virginia Autism Training Center at Marshall University, works with Stephanie Hurley, a Marshall senior. New findings about

发表于:2019-01-11 / 阅读(87) / 评论(0) 分类 VOA慢速英语2007年(三)月

SCIENCE IN THE NEWS - Device Gives New Meaning to the Idea of Power Walking Also: A common disease many people have never heard of. And scientists say people with blue eyes are genetically related. Transcript of radio broadcast: 10 March 2008 VOICE

发表于:2019-01-11 / 阅读(60) / 评论(0) 分类 VOA慢速英语2008年(三)月

VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the VOA Special English program, People in America. Every week we tell about a person important in the history of the United States. Today, we tell about actor and dancer Gene Kel

发表于:2019-01-11 / 阅读(73) / 评论(0) 分类 VOA慢速英语2007年(五)月

This is the VOA Special English Agriculture Report. A boy carries cassava in the Democratic Republic of Congo A new project will try to protect twenty-one of the world's most important food crops by securing their seeds. Organizers say the project w

发表于:2019-01-11 / 阅读(56) / 评论(0) 分类 VOA慢速英语2007年(五)月

What Causes Jet Lag and How to Avoid It 时差是如何产生及如何避免时差 From VOA Learning English, this is the Health Lifestyle Report. Our bodies react to daylight. In fact, light is the most powerful environmental signal for re-setting o

发表于:2019-01-12 / 阅读(55) / 评论(0) 分类 2015年VOA慢速英语(三)月

Scientists Discover Gene Responsible for Multiple Sclerosis 科学家发现导致多发性硬化症基因 From VOA Learning English, this is the Health Lifestyle report. VOA英语学习健康与生活方式报道。 An estimated two million people ar

发表于:2019-01-12 / 阅读(71) / 评论(0) 分类 2016年VOA慢速英语(六)月