初种反应

21世纪大学英语读写教程第四册 Unit3

Unit 3 Text A Pre-reading Activities First Listening Before Listening to the tape, have a quick look at the following words. smallpox 天花 stuck 被难住了 cowpox 牛痘 lateral thinking 横向思维

发表于:2018-12-11 / 阅读(175) / 评论(0)

21世纪大学英语读写教程

VOA慢速英语 2007 0124a

This is the VOA Special English Health Report. Measles is one of the most infectious viruses known. It spreads through the air when people infected with the disease cough or sneeze. Children in wealthier countries are usually vaccinated to protect ag

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VOA慢速英语2007年（一）月

英语听力—环球英语 1338 Immunizations Making Peace

Voice 1 Thank you for joining us for Spotlight. Im Liz Waid. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 It was 1994. The p

发表于:2018-12-19 / 阅读(126) / 评论(0)

环球英语 Spotlight

经济学人:疫苗及时一针(上)

International Vaccination A jab in time 国际疫苗及时一针 Some Western countries have lower vaccination rates than poor parts of Africa. Anti-vaxxers are not the main culprits 与非洲贫困地区相比，部分西方国家的疫苗接种率更

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经济学人要闻

SSS 2008-07-07

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Youve probably heard of the whole six degrees of separation thing. It predicts that, on average, youre no more than six links away from any other person o

发表于:2019-01-08 / 阅读(210) / 评论(0)

Scientific American(七)月

VOA标准英语2012--Immunization Week Highlights Efforts to Save Lives Worldwide

Immunization Week Highlights Efforts to Save Lives Worldwide Haiti, Nigeria, Ghana -- 180 countries in all -- stepped up their immunization drives against deadly childhood infections to mark World Immunization Week. The GAVI Alliance -- a Geneva base

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VOA标准英语2012年(四月)

VOA标准英语2010年-Polio Vaccine Protects with Just One-F

Efforts to eradicate polio have been frustrated by a variety of factors, and unlike smallpox, the disease has defied long-running and expensive efforts to wipe it out. Now, a new study indicates that one of several polio vaccines can be effective at

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VOA标准英语2010年(七)月

VOA标准英语2010年-WHO Says New Vaccine Could Eradicate P

A new polio vaccine gives hopes that the disease can be completely eradicated. Polio can cause severe deformities and paralysis in children. The number of polio cases worldwide has dropped by over 99 percent in recent years because of a global vaccin

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VOA标准英语2010年(十一)月

VOA常速英语2015--埃博拉疫苗进入最后试验阶段

埃博拉疫苗进入最后试验阶段 An Ebola vaccine candidate enters the final phase of its trial Saturday (3/7) in Guinea. If successful, a vaccine could be ready for use in five or six months. 一种埃博拉候选疫苗3月7日在几内亚进入

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VOA标准英语2015年(七月)

VOA标准英语2015--埃博拉病毒疫苗进入最后审判阶段

Ebola Vaccine Enters Final Trial Phase 埃博拉病毒疫苗进入最后审判阶段 An Ebola vaccine candidate enters the final phase of its trial Saturday (3/7) in Guinea. If successful, a vaccine could be ready for use in five or six months. The V

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VOA标准英语2015年(三月)

英语听力—环球英语 1279 The History of Vaccines

Voice 1 Welcome to Spotlight. Im Nick Page. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Through history, a deadly disease cal

发表于:2019-01-19 / 阅读(170) / 评论(0)

环球英语 Spotlight

英语听力—环球英语 1291 How Vaccines Work

Voice 1 Welcome to Spotlight. Im Mike Procter. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Todays Spotlight program is about

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环球英语 Spotlight

旅游口语情景对话第43天:如何让人出示护照

星级典句：第一句：Your passport, please. 请出示护照。 A: Your passport, please. 请出示护照。 B: Here it is. And here is my vaccination certificate. 给你，这里还有我的种痘证书。 A: Thank you for your cooperation. 谢谢

发表于:2019-01-21 / 阅读(161) / 评论(0)

旅游英语口语情景对话

经济学人67:根除脊髓灰质炎,为时已晚?或絕無可能?

Science and Technology,Eradicating polio,Late? Or never? 科技,根除脊髓灰质炎,为时已晚？或絕無可能？ A plan to wipe out polio by the end of next year is in trouble 明年底消灭脊髓灰质炎的计划倍受挑战 HUBRIS is alway

发表于:2019-01-26 / 阅读(151) / 评论(0)

经济学人科技系列

DEVELOPMENT REPORT - Effort to End Polio by 2005 Continues

DEVELOPMENT REPORT - Effort to End Polio by 2005 Continues By Jill Moss Broadcast: Monday, January 26, 2004 This is the VOA Special English Development Report. Ending polio before the end of this year

发表于:2019-01-30 / 阅读(150) / 评论(0)

农业与发展

HEALTH REPORT - Countries in the Americas Observe Vaccinatio

HEALTH REPORT - Countries in the Americas Observe Vaccination Week By Cynthia Kirk Broadcast: Wednesday, April 27, 2005 I'm Gwen Outen with the VOA Special English Health Report. Officials hope to vac

发表于:2019-01-30 / 阅读(276) / 评论(0)

健康与经济

Polio Vaccination Efforts in India Focus on Convincing Paren

Steve Baragona Polio is on the ropes. A $3 billion global campaign has driven the crippling and sometimes-fatal disease to just six source countries. Experts say the campaign has the potential to win

发表于:2019-01-31 / 阅读(240) / 评论(0)

VOA2004（上）--国际时事

学个词Learn a Word 第1209期 initial

今天我们要学的词是initial。 Initial, 意思是初步的，初始的。 Initial result初步结果。 Initial reaction初步反应。美、英、法联军为落实禁飞区对利比亚实行空中打击后，军方高级将领说， The init

发表于:2019-02-02 / 阅读(192) / 评论(0)

英语单词荟萃

2007年VOA标准英语-Scientists Face Obstacles in Vaccine Developmen

By Ernest Leong Washington 19 March 2007 watch Vaccine report Some U.S. state lawmakers are fighting a mandate requiring certain vaccinations for children, saying it encourages undesirable behavior. Getting vaccinated has become a more complicated pr

发表于:2019-02-07 / 阅读(190) / 评论(0)

2007年VOA标准英语（三月）

美国文化脱口秀第318期:中国美国,疫苗都是个问题

这两天好多朋友希望我们说说疫苗。今天我们就一起读英语媒体关于事件的报道，也带你了解美国的疫苗问题! 关键词： China's Vaccine Scandal Widens 中国疫苗事件持续扩散 The Wall Street Journal 华尔街

发表于:2019-02-22 / 阅读(157) / 评论(0)

美国文化脱口秀

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学英语单词

(angle of) depression

amplitude analyzing assembly

analytic function of bounded mean oscillation

anheat

anoxically

asnsw