小学三年级英语(人教新课标版)上册 Unit 1 Hello - C Let’s sin

小学三年级英语,人教新课标版

小学三年级英语(人教新课标版)上册 Unit 1 Hello - A Let’s sin

小学三年级英语,人教新课标版

经济学人:分子生物学 蛋白质的奥秘(3)

One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是，如果一对氨基酸的一个侧链折叠后很长，

经济学人:分子生物学 蛋白质的奥秘(2)

One of the leading researchers in the field of protein folding is David Baker of the University of Washington, in Seattle. 西雅图华盛顿大学的David Baker是蛋白质折叠领域研究者的领军人物之一。 For the past 20 years he and hi

电影歌曲:Kong Fu Fighting 《功夫熊猫》主题曲

Kong Fu Fighting 《功夫熊猫》主题曲(Carl Douglas) 《Kung Fu Fighting》是美国歌手Carl Douglas(卡尔-道格拉斯)的代表作品。 《Kung Fu Fighting》创作于上世纪70年代，是国外著名的中国功夫(KUNG FU)类歌曲。

SSS 2009-01-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

SSS 2009-04-28

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

专业术语—基因专业词汇A/B

2006年VOA标准英语-Some Say More Should be Done to Help Darfu

By Peter Fedynsky Washington, DC 14 April 2006 watch Darfur report The Darfur region of Sudan is in the midst of genocide. Diplomats have so far failed to stop the tragedy, citing that country's compl

SSS 2008-10-17

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1953 a student named Stanley Miller did an experiment showing that the simple chemicals present on the early Earth could give rise to the basic buildi

SSS 2009-09-17

The early Earths oceans were home to a lot of interesting chemistry. Now scientists have found that amino acids thought to be present way back when could have been cooked into other compounds vital for lifean idea you should take with a grain of salt

经济学人152:攻破屏障

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

经济学人107:克雅氏病 攻破屏障

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

英语歌曲:She is my sin她是我的罪

She is my sin 她是我的罪 Take heed, dear heart, once apart 小心留意 亲爱的心 一旦分离 She can touch nor me nor you 她便无法触摸你或我 Dressed as one 剥去身上的皮毛 A wolf will betray a lamb 灰狼将背叛那羊羔 Le

VOA标准英语2008年-ICC Prosecutor Says He Will Next Go After Darfu

The chief prosecutor of the International Criminal Court says he will pursue charges against rebel groups that attacked African Union peacekeepers in Darfur last September, killing 10 of them. From United Nation's headquarters in New York, VOA's Mar

听歌学英语:A Perfect Indian-Sinead O'Connor

听歌学英语:A Perfect Indian-Sinead O'Connor A Perfect Indian Sinead O'Connor Sinead O'Connor出生在都柏林一个传统的天主教家庭，她小时候曾是唱诗班成员，十九岁就开始了歌手生涯。1987年出道时，唱片公司想

万物简史 第407期:生命的起源(1)

19 The Rise Of Life 第十九章 生命的起源 In 1953, Stanley Miller, a graduate student at the University of Chicago, took two flasksone containing a little water to represent a primeval ocean, 1953年，芝加哥大学的研究生斯坦利米勒拿

万物简史 第408期:生命的起源(2)

Proteins are what you get when you string amino acids together, and we need a lot of them. 你把氨基酸串在一起，就得到了蛋白质。我们需要大量的蛋白质。 No one really knows, but there may be as many as a million types of pro

每天吃鲑鱼 像戒烟一样有益

Eating a small steak every day could be as good for you as stopping smoking, scientists say. 科学家说，每天吃一小块牛排可以像戒烟一样对你有好处。 People who eat lots of protein-rich food were found to have lower blood pressu