97.9a上海英语高级口译资格证书第一阶段考试

SECTION 1： LISTENING TEST (30 minutes) Part A: Spot Dictation Directions: In this part of the test, you will hear a passage and read the same passage with blanks in it. Fill in each of the blanks wi

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

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

【跟着英剧练发音】The Queens Palaces E1-28

文本： Take this cabinet, for example, as a statementof wealth, it's the 18th-century equivalent of a Ferrari in your drive. Andthese decorations are made from pietra dura. In Italian, that means hardstone. It's one of George's favourites. And it'

Designer Antibiotics

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专业术语—基因专业词汇A/B

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

2006年VOA标准英语-US Officials Claim Progress Amid Continuing Vio

By Al Pessin Pentagon 18 August 2006 U.S. Defense Department officials say American and Iraqi forces are making progress toward bringing security to Baghdad. But, the comments came amid surging sectarian violence and the day after statistics from th

美国国家公共电台 NPR Last Year, A Retired Mexican Schoolteacher Vanished. His Family Still Seeks Answers

LULU GARCIA-NAVARRO, HOST: I'm Lulu Garcia-Navarro in Mexico City, where an election is about to take place in a week. SUSAN DAVIS, HOST: Lulu, I spend so much time thinking about what's driving voters here in America. Tell me what is driving voters

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

VOA标准英语2009年-US Conservatives Support Ouster of Hondura

The Organization of American States and most governments in the world have condemned the ouster of Honduran President Manuel Zelaya by the military last Sunday as a coup d'etat. But the people who currently hold power in Honduras say they followed l

Honduras leaders reject deadline 洪都拉斯领导人拒绝最后期限

Honduras leaders reject deadline 洪都拉斯领导人拒绝最后期限 The newly installed government in Honduras has rejected international calls to reinstate deposed （免职的） President Manuel Zelaya. The Organization of American States has given Honduras a

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

VOA标准英语2009年-US Seeks World Cup Berth Against Honduras

By Jim Stevenson Washington 08 October 2009 The U.S. men's national soccer team will have a chance to secure a place in the 2010 World Cup with a win against host Honduras, in San Pedro Sula on Saturday. The U.S. team will also have one last chance