After we had seen how relatively easy it was to change the switches in mouse embryos, we thought that perhaps the same could be true of human embryos. In IVF, you also have the embryo for a brief peri

发表于:2018-12-07 / 阅读(72) / 评论(0) 分类 基因外遗传现象

Just because you are heading off to college dosent mean you are too old for toys. Hi, Im Amber Milt and here is our list of the must-have tech-toys you will need for life at college. First of all, you are gonna need a great computer, so you can emai

发表于:2018-12-11 / 阅读(39) / 评论(0) 分类 万花筒2007年

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: Scientists are bringing the Dead Sea Scrolls to the Internet And I'm Steve Ember. This week, we will tell about an effort to place two thousand year old doc

发表于:2018-12-15 / 阅读(40) / 评论(0) 分类 VOA慢速英语2008年(九)月

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. I'm Faith Lapidus. CHRISTOPHER CRUISE: And I'm Christopher Cruise. On our program this week, we tell about compulsive hoarding syndrome. It is both a mental sickness and a public safe

发表于:2018-12-16 / 阅读(64) / 评论(0) 分类 2011年VOA慢速英语(二)月

SCIENCE IN THE NEWS - When Collecting Things Becomes a Problem FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Faith Lapidus. CHRISTOPHER CRUISE: And I'm Christopher Cruise. On our program this week, we tell about Compulsive H

发表于:2018-12-16 / 阅读(52) / 评论(0) 分类 2012年VOA慢速英语(三)月

Thank you for taking ten minutes for CNN's student news, I am Carl Azuz. It is great to see you. We are following up the story we told you about before. It happened in a western African country of Nigeria, Polices there say there are 223 girls are st

发表于:2018-12-19 / 阅读(77) / 评论(0) 分类 CNN2014年(五)月

Some call it the hormone of love. Its oxytocin and it helps moms bond with and breast-feed their babies, and even keeps romantic couples content. Now a study suggests that this same hormone might also help people with autismby improving their social

发表于:2018-12-28 / 阅读(50) / 评论(0) 分类 初学者听力文摘精选

Remember these? Sunshine, waves, lazy days, lounging in lazy rivers. It wasn't that long ago but now you are back to this. If you are feeling run down, cranky, a little bit depressed these days, you may be suffering from something called PVS, Post Va

发表于:2019-01-07 / 阅读(64) / 评论(0) 分类 万花筒2011年

Cavers Explore Mysterious Hidden Wonders Caves have a subconscious hold on our imaginations - for our ancestors, they were not just shelter from the elements but also symbols of the womb, gateways to the underworld, places of wonder and mystery. Not

发表于:2019-01-09 / 阅读(79) / 评论(0) 分类 VOA标准英语2011年(八月)

Watching for Early Signs of Autism in Babies From VOA Learning English, this is the Health Report in Special English. Children with autism have difficulty with social skills and communication. They often behave in restricted and repetitive ways and h

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2013年VOA慢速英语(五)月

Health Report - Watching for Early Signs of Autism in Babies 健康报道 - 儿童自闭症的早期迹象 From VOA Learning English, this is the Health Report in Special English. 这里是美国之音慢速英语健康报道。 Children with autism

发表于:2019-01-12 / 阅读(65) / 评论(0) 分类 2013年VOA慢速英语(一)月

'Extremely Loud' Hits Incredibly Close to Heart Oskar Schell cannot comprehend why the person he loved most died on the morning of September 11. An intellectually-gifted child, Oskar also has symptoms of Asperger's syndrome and is fearful of the worl

发表于:2019-01-13 / 阅读(87) / 评论(0) 分类 VOA标准英语2012年(一月)

STEVE INSKEEP, HOST: Doctors are solving health mysteries for families who've run out of options. These specialists across the country form what is called the Undiagnosed Disease Network. This sounds almost like a television drama, but this is very r

发表于:2019-01-23 / 阅读(52) / 评论(0) 分类 2018年NPR美国国家公共电台12月

At this time of year, the schools have tests of all kinds for the children. Reading and writing tests, math skills tests, and tomorrow, there will be hearing and vision tests for the whole school. If you think about it, the two last mentioned tests a

发表于:2019-01-28 / 阅读(53) / 评论(0) 分类 英语博客 A cup of English

DEVELOPMENT REPORT - Indonesia Sets National Days to Protect Children From Polio By Karen Leggett Broadcast: Monday, August 22, 2005 I'm Steve Ember with the VOA Special English Development Report. Mo

发表于:2019-01-30 / 阅读(62) / 评论(0) 分类 农业与发展

South Korea has confirmed 23 more cases of the Middle East Respiratory Syndrome virus, bringing the total number to 87. Among them, five have died from the illness. According to the country's health ministry, 17 of the new cases come from the same Se

发表于:2019-02-01 / 阅读(100) / 评论(0) 分类 cctv9英语新闻2015年

It is called crib death or SIDS which stands for sudden infant death syndrome. Parents put a seemingly healthy infant to sleep and return to find the baby has stopped breathing. The causes remain a mystery, but new research suggests a chemical imbala

发表于:2019-02-03 / 阅读(73) / 评论(0) 分类 VOA标准英语2010年(二月)

Voice 1 Thank you for joining us for todays Spotlight program. Im Liz Waid. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 On

发表于:2019-02-21 / 阅读(75) / 评论(0) 分类 环球英语 Spotlight

Dear Annie: My adult son, Nick, has been hospitalized more than a dozen times and treated in emergency rooms nearly 100 times over the past 18 years. He has shot himself, stabbed himself in the liver (both accidental) and has had innumerable bouts of

发表于:2019-02-23 / 阅读(48) / 评论(0) 分类 英语时差8,16

Though it rained fairly heavily on Saturday, all of the so-called gold snails didn't seem to mind as they took part in the Snail Walk through the Olympic Forest Park in northern Beijing. One of the obvious questions people have is why organizers woul

发表于:2019-03-04 / 阅读(217) / 评论(0) 分类 2016CRI中国国际广播电台