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美国英语听力80篇2 Lesson22

[00:06.95]Last summer, Americans in the eastern state of New York were threatened by a disease never before seen in the country--West Nile Fever. [00:19.59]The disease usually is not serious in people. [00:23.61]But it can cause swelling of the brain

发表于:2018-12-26 / 阅读(82) / 评论(0)

美国英语听力80篇

Diseases Spread by Mosquitoes

87 蚊子传播疾病导致每年数百万人死亡 DATE=8-28-01 TITLE=SCIENCE IN THE NEWS #2139 - Diseases Spread by Mosquitoes BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And th

发表于:2019-01-02 / 阅读(53) / 评论(0)

科技之光

SSS 2009-01-02

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Mosquitoes carry nasty diseasesdengue fever, west nile, malaria. But the microbes that cause those diseases dont attach themselves to the mosquitoes an

发表于:2019-01-08 / 阅读(81) / 评论(0)

Scientific American(一)月

Dengue and Other Mosquito-Borne Diseases Continue to Plague

Kurt Achin It is rainy season in Southeast Asia, and the region is facing its annual battle with dengue fever and other mosquito-borne diseases. The World Health Organization says such diseases are a

发表于:2019-01-11 / 阅读(55) / 评论(0)

VOA2004（上）--国际时事

VOA标准英语2011--Scientists Target Mosquito-Borne Illness

Scientists Target Mosquito-Borne Illnesses Of all the disease-spreading insects in the world, the mosquito poses the greatest menace, according to the World Health Organization (WHO). As if to underscore that threat, two mosquito-borne viral diseases

发表于:2019-01-14 / 阅读(45) / 评论(0)

VOA标准英语2011年(八月)

环球英语 — 238：Dengue Fever

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 In February 2007, c

发表于:2019-03-04 / 阅读(94) / 评论(0)

环球英语 Spotlight

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学英语单词

be unlikely but not impossible

behind the time