[病毒] 病毒动力学

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Some people never forget a face. Others never forget a flu. Even if they were infected more than 90 years ago. A team of American scientists studied 32 p

发表于:2018-12-24 / 阅读(199) / 评论(0) 分类 Scientific American(八)月

[0-1:56.48]Oh. 哦 [00:00.96]You should have gone to China. 你们应该去中国 [00:02.84]You know, cause I hear they give away babies 我听说他们送孩子就像大赠送 [00:05.16]like free iPods. 知道吗 [00:06.44]they pretty much just put

发表于:2019-01-01 / 阅读(234) / 评论(0) 分类 听电影学英语-朱诺

SCIENCE IN THE NEWS - Killer Virus Brought Back From the Past, With the Hope to Avoid a New One By Cynthia Kirk and Caty Weaver Broadcast: Tuesday, October 18, 2005 (MUSIC) VOICE ONE: This is SCIENCE

发表于:2019-01-02 / 阅读(188) / 评论(0) 分类 科技之光

WHO Confirms Bird Flu Virus Caused Human Deaths in Vietnam Katherine Maria The World Health Organization has confirmed that at least three people have died of bird flu in Vietnam, the same virus that

发表于:2019-01-07 / 阅读(212) / 评论(0) 分类 VOA2004(上)--各类新闻

Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. My name is Jennifer and with me in the studio for today's programme is Callum. Happy New Year! Callum: Hi Jen - happy New Year! Jennifer: Have you made any Ne

发表于:2019-01-07 / 阅读(280) / 评论(0) 分类 六分钟英语

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? If you're worried about news reports of West Nile virus, you might want to go take a census of the birds in your backyard. Because certain species of birds actually

发表于:2019-01-08 / 阅读(160) / 评论(0) 分类 Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Christie Nicholson. This will just take a minute. So check this out: Hi my name is Adi Rajagopalan, I'm going on 18 in a few days, and my project was Modelling Synergistic Cellulolytic-Hemicellulol

发表于:2019-01-08 / 阅读(174) / 评论(0) 分类 Scientific American(三)月

by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex

发表于:2019-01-09 / 阅读(217) / 评论(0) 分类 VOA2003(下)-环境与健康

CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the

发表于:2019-01-09 / 阅读(213) / 评论(0) 分类 英语新闻

I'm not quite sure whether I really want to see a snare drum at nine o'clock or so in the morning. 我一点也不确定是否我自己愿意看到小军鼓,在晚上九点以后或是早晨。 But anyway, it's just great to see such a full theater

发表于:2019-01-18 / 阅读(156) / 评论(0) 分类 TED演讲国际问题篇

在新的一年里,人们总是会为自己定下目标,许下愿望,希望在一年里能够实现,你的愿望是什么呢?有决定做到吗? Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. M

发表于:2019-01-23 / 阅读(249) / 评论(0) 分类 一起听英语

The Virtual College In the fall of 1994, I arrived at my freshman dorm in my old station wagon filled with new clothes, too many shoes, and my proudest possession: a computer the size of a small refrigerator. Fortunately, I only had to lug1 my 50-pou

发表于:2019-02-04 / 阅读(212) / 评论(0) 分类 实用英语

Many online social networking tools have fulfilled uses their creators had never dreamed of. Twitter started as a way to tell others what you were doing, and then surprisingly, turned into a tool to find gas during the Atlanta gas crunch last year. N

发表于:2019-02-05 / 阅读(145) / 评论(0) 分类 实用英语

The so-called one-child policy was brought into law in the late 1970's as a way to limit population growth, given that the economy at the time was just starting to open up to the outside world, and the domestic resources, particularly in urban areas,

发表于:2019-02-06 / 阅读(136) / 评论(0) 分类 英语新闻

You're standing face-to-face with a professional in your industry who can help you advance your career. This is your chance to wow this person with a strong handshake, bright smile and direct eye contact, followed by a witty comment that initiates a

发表于:2019-02-07 / 阅读(178) / 评论(0) 分类 英语口语

你知道丈夫的含义吗?丈夫、丈夫,一丈之内乃夫也!你知道英文husband是怎么来的吗?husband=house+band 房屋栓牢!(band的含义就是Something that constrains or binds morally or legally约束:在道义上或法律

发表于:2019-02-08 / 阅读(193) / 评论(0) 分类 实用英语

By Steve Herman New Delhi 01 January 2008 India remains one of the few countries where polio has not been eradicated. Most of the world's new cases are reported in the subcontinent. While the total number of cases dropped in India last year, VOA cor

发表于:2019-02-12 / 阅读(210) / 评论(0) 分类 VOA标准英语2008年(一月)

Science and technology 科学技术 Computer security 计算机安全 Blame game 推脱责任 How to mimic human laxness with computers 如何用计算机模拟人类错误 TO ERR is human, but to foul things up completely takes a computer, or so the

发表于:2019-02-16 / 阅读(170) / 评论(0) 分类 经济学人科技系列

MARIUPOL, UKRAINE Smoke billows from Azovstal steel works here, one of the many gargantuan industrial assets in this southeastern port city owned by Ukraines richest man, Rinat Akhmetov. Akhmetov employs more than 300,000 people across the region. Th

发表于:2019-02-18 / 阅读(173) / 评论(0) 分类 英语新闻

31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact. 31. 骨头看起来是脆硬的,但它也有一定的弹性,使得骨骼

发表于:2019-03-13 / 阅读(398) / 评论(0) 分类 实用英语