Democratic presidential hopeful Barack Obama cancelled a planned appearance in North Carolina today when his plane had mechanical problems. But speaking in St. Louis where the plane landed, he outlined proposals for revitalizing the sagging US econo

发表于:2019-01-08 / 阅读(53) / 评论(0) 分类 2008年NPR美国国家公共电台七月

Matt Lauer: On close up this morning, new hope in the fight against AIDS as we reported, the new study has some scientists excited and others skeptical. Doctor David Ho was Time magazine's man of the

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 访谈录

Cell 细胞 Every living thing has at least one cell. 每个生物至少有一个细胞。 Then, what is a cell? 那么,什么是细胞呢? Every cell works differently, but most cells work to maintain life. 每个细胞的功能都不相同,但大

发表于:2019-01-10 / 阅读(62) / 评论(0) 分类 与美国小学生一起学英文第7册

Friend 朋友 Do you have a lot of friends? 你的朋友多吗? Friends play together and study together. 朋友会在一起玩耍和学习。 Also, friends share their thoughts and do things together. 而且,朋友会分享他们的想法和一同

发表于:2019-01-10 / 阅读(93) / 评论(0) 分类 与美国小学生一起学英文第1册

Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗? An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells

发表于:2019-01-10 / 阅读(81) / 评论(0) 分类 与美国小学生一起学英文第10册

Broadcast: May 6, 2003 By Caty Weaver VOICE ONE: I'm Sarah Long with Bob Doughty, and this is the VOA Special English program, SCIENCE IN THE NEWS. VOICE TWO: Today, we talk about some disorders of th

发表于:2019-01-11 / 阅读(138) / 评论(0) 分类 VOA2003(上)-健康资讯

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Today, we will tell about some disorders of the skin, and ways to treat them. (MUSIC) VOICE ONE: Skin. It is the largest organ of the b

发表于:2019-01-11 / 阅读(106) / 评论(0) 分类 VOA慢速英语2007年(四)月

Flu Virus Disarms Immune System's First Responders 流感病毒瓦解免疫系统的第一道防线 From VOA Learning English, this is the Health Report. 这里是美国之音慢速英语健康报道。 Infection by the influenza virus may be more co

发表于:2019-01-12 / 阅读(126) / 评论(0) 分类 2013年VOA慢速英语(十二)月

AS IT IS 2016-08-25 Zika Could Affect Adult Brains, Says New Study 新研究表明:塞卡病毒或影响成人大脑 New research suggests the Zika virus may damage some cells in adult brains. Until now, scientists mainly worried about Zikas effects

发表于:2019-01-12 / 阅读(64) / 评论(0) 分类 2016年VOA慢速英语(八)月

疟疾疫苗研制取得新进展 British researchers have discovered a biochemical key used by the malaria parasite to invadehuman blood cells. The discovery could pave the way for an effective malaria vaccine. ThePlasmodium malaria parasite has a c

发表于:2019-01-14 / 阅读(216) / 评论(0) 分类 VOA标准英语2016年(八月)

脑细胞再生助疾病治疗 Using powerful microscopes and imaging devices, Amina Qutub can observe brain cells in a glass container and the connections they make with each other. 通过超强显微镜和影像设备,阿米娜库特博能够在玻

发表于:2019-01-14 / 阅读(126) / 评论(0) 分类 VOA标准英语2016年(二月)

文本: Kaelthas:How could I have let this happen to my brethren? Locked in these cells, our thirst for magic will devour us. Guard Marcus:It'll all be over soon, traitor. Lord Garithos plans to execute the _(1)_ of you at dawn. Guard Trogdar:

发表于:2019-01-23 / 阅读(69) / 评论(0) 分类 小龟乐游记英语短文

Science and Technology Stress and ageing A question of attitude 科技 压力和老化 一个态度问题 The link between chronic stress and a marker of old age is being disentangled 科学家发现了长期压力与一个衰老标志间的联系 TE

发表于:2019-01-26 / 阅读(83) / 评论(0) 分类 经济学人科技系列

Science and Technolgy. 科技。 Artificial meat. 人造肉。 Hamburger junction. 人造汉堡的诞生。 Muscle grown in factories could soon be appearing in a supermarket near you. 工厂培养的肉可能很快出现在你周围的超市了。 A

发表于:2019-01-26 / 阅读(72) / 评论(0) 分类 经济学人科技系列

Obesity may have harmful effects on the brain, and exercise may counteract many of those negative effects, according to sophisticated new neurological experiments with mice, even when the animals do not lose much weight. While it's impossible to know

发表于:2019-02-01 / 阅读(58) / 评论(0) 分类 阅读空间

近日,《科学》杂志在线报道称,剑桥大学的科学家们通过使用两种干细胞以及一个三维支架,成功地创造出了一个能够自行组装的结构,其发育和构造非常接近自然的小鼠胚胎。科学家的研

发表于:2019-02-01 / 阅读(43) / 评论(0) 分类 阅读空间

BEIJING, Oct. 12(Xinhuanet) -- People allergic to peanuts may find relief in a new research by American scientists, according to Huffington Post Monday. Scientists from the Northwestern University Feinberg School of Medicine have found a way to turn

发表于:2019-02-01 / 阅读(60) / 评论(0) 分类 英语新闻

A common ingredient in curry could help target and destroy chemotherapy-resistant cancer cells, scientists said today. This could improve the effectiveness of chemotherapy and also help prevent the disease from returning. Researchers at the Universit

发表于:2019-02-02 / 阅读(70) / 评论(0) 分类 阅读空间

The (50)veryrichnessandcomplexityofthe meaningfulrelationshipsthatkept presentingandrearrangingthemselves onalllevels,fromabstractintelligence toprofounddreamyfeelings,madeit (55)difficultforProusttose

发表于:2019-02-06 / 阅读(59) / 评论(0) 分类 英文语法词汇

Chinese scientists have defined a subset of a type of virus-specific cells that could pave the way for new ways to treat chronic diseases like HIV/AIDS and cancer, Xinhua News Agency reported last Saturday. 据新华社上周六报道,中国科学家

发表于:2019-02-07 / 阅读(62) / 评论(0) 分类 英语新闻