交流表达-010.Affirmative Response

Affirmative Response Yes. Right. Correct. Thats it. Thats OK. Thats right. Exactly. Youre quite right. Thats quite right. Thats correct. Spot on. Youre dead right. Precisely. Absolutely. Thats perfectly correct. Theres nothing wrong with that. Nothi

交流表达-011.Negative Response

Negative Response Its all wrong. Youve got it all wrong. Youre all wet actually. Thats not correct. Youvewrong. Rubbish. Nonsense. I suppose youre mistaken there. I think I must tell you that its not true. If I may say so, its actually not the case.

VOA标准英语2011--New TB Vaccine Passes Safety Tests

New TB Vaccine Passes Safety Tests Tuberculosis continues to be a major threat around the world, especially in developing countries. A new vaccine has gone into testing, and the results may change how childhood vaccinations are given. TB kills 1.8 mi

SSS 2008-08-27

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The plague is most famous for killing tens of millions of people all over Europe in the 1300s. Plague is caused by the bacteria Yersinia pestis. And th

蒋健棠英语实用句子(48):He is immune to chickenpox

He is immune to chickenpox, he had it as a child. 他对水痘免疫，他小时候就得过了。 immune表示免疫的，immune system就是指身体的免疫系统；而对...有免疫力就用be immune to...这个词组。

加入北极基因的疫苗不能在人类体温下生存(有声

Pathogens with added genes from Arctic bacteria could serve as vaccines that elicit an immune response before getting cooked in our warm bodies. Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated

CNN 2010-02-02

It is the most awesome day of the week; we're glad you're spending part of it with CNN Student News. Talking you through today's commercial-free headlines, I'm Carl Azuz. 70 minutes, more than 7,000 words: It all adds up to President Obama's first, o

艾滋病疫苗研究

HIV Vaccine Research 艾滋病疫苗研究 Two years ago, Jason Brenchley took part in an HIV vaccine trial sponsored by the U.S. National Institutes of Health. An NIH researcher himself, Mr. Brenchle

2007年VOA标准英语-Scientists Study Old Virus to Predict Impact of

By Jessica Berman Washington 17 January 2007 If or when it strikes, the avian flu pandemic would likely kill victims by switching on an uncontrolled immune system response. That's according to researchers, who studied a 90-year-old flu virus in the h

VOA慢速英语 SCIENCE IN THE NEWS - How Autoimmune Diseases Attack

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Barbara Klein. This week, we talk about a sickness called lupus and other autoimmune diseases. Autoimmune diseases affect the immune system the body's

VOA标准英语2012--Scientists Seek HIV Vaccine Using Monkey Model

Scientists Seek HIV Vaccine Using Monkey Model Traditional vaccine methods have been unsuccessful in preventing infection by HIV, the virus that causes AIDS. New techniques are being studied to boost antibodies or other parts of the immune system. Bu

VOA标准英语2012--Clues Found for AIDS Vaccine Trial Success

Clues Found for AIDS Vaccine Trial Success In 2009, a study in Thailand proved for the first time that an AIDS vaccine was possible. But scientists were not sure why it offered some protection. Now they have some clues. The Thailand study looked at a

VOA标准英语2011--Helper Serum Boosts Effectiveness of Flu

Helper Serum Boosts Effectiveness of Flu Vaccine Vaccines against swine and avian flu can be made more effective by the addition of a helper serum known as an adjuvant. The finding from a new study could let vaccine makers stretch supplies and possib

VOA标准英语2010年-Combined Smallpox-Anthrax Vaccine Pass

Researchers have developed an improved version of the smallpox vaccine that can be combined with a vaccine against anthrax. The dual vaccine represents a significant scientific achievement as well as a possible improved defense against biological att

学个词Learn a Word 第1494课 immune

今天我们要学的词是immune。Immune, 的意思是免疫的，比如，immune system就是指免疫系统， immune disease则是免疫系统疾病。Immune还可以指免除的,不受影响的. Apple's OS X, which has long been considered immu

VOA标准英语10月-Kenya Not Immune From Global Downturn

Developing countries in Africa are bracing for serious setbacks in their economies. One of the countries that may feel the effects of the downturn more acutely than others is Kenya, which suffered months of political unrest earlier this year. VOA Co

China issues emergency response to Shanxi flood

BEIJING, July 30 (Xinhua) -- The Chinese government initiated a level four emergency plan on Monday in response to torrential rains and flooding in northern China's Shanxi province. The National Commission for Disaster Reduction and the Ministry of C

China launches emergency response as typhoons approach

BEIJING, Aug. 22 (Xinhua) -- An emergency response plan to cope with two approaching typhoons was launched by the National Commission for Disaster Reduction (NCDR) on Wednesday. The NCDR has urged civil affairs offices in coastal provinces and the th

学个词Learn a Word 第1736 response

今天我们要学的词是 response。Response 是回应的意思。The local residents were very thankful for the firefighters' quick response. 当地居民对消防人员的快速反应表示感谢。The Mayor hasn't made any public response to th

留美老师带你每日说英文 第463期:睡眠的主要功能

台湾籍旅美老师今天交给我们的句子是： Sleeping isn't lost time, or just a way to rest when all our important work is done. Instead, it's a critical function, during which your body balances and regulates its vital systems, effecting