In 1831, naturalist Charles Darwin set out on a voyage to the Pacific aboard the HMS Beagle. Darwin arrived in Brazil in 1832, and began documenting the enormous biodiversity of the rainforest of Rio de Janeiro province. In his diary, he mentions par

发表于:2018-12-03 / 阅读(52) / 评论(0) 分类 自然百科2008年

Increase Seen in Common Form of Malaria 增加对常见疟疾的认识 From VOA Learning English, this is Science in the News. Im Mario Ritter. And Im Christopher Cruise. Today we tell about a warning from tropical disease experts. They are seeing an

发表于:2018-12-08 / 阅读(38) / 评论(0) 分类 2014年VOA慢速英语(一)月

Parasites, Trauma Causes of Epilepsy A new study said its possible to substantially reduce the number of epilepsy cases in Africa. The neurological disorder, which is characterized by seizures, is much more common in poor countries and rural areas. T

发表于:2018-12-08 / 阅读(58) / 评论(0) 分类 VOA标准英语2013年(一月)

Health Report - Spray Shows Promise in Malaria Study in Benin 健康报道 - 室内喷洒杀虫剂可减少疟疾传播 This is the VOA Special English Health Report. 这里是美国之音慢速英语健康报道。 Malaria is caused by a parasite sp

发表于:2018-12-16 / 阅读(103) / 评论(0) 分类 2011年VOA慢速英语(十二)月

Studies Link Bee Decline to Insecticide Billion-dollar bees Bees pollinate the flowers that become fruits, nuts and vegetables. The work these insects do is worth about $18 billion a year to U.S. farmers. But honeybee colonies in the United States ha

发表于:2018-12-16 / 阅读(47) / 评论(0) 分类 VOA标准英语2012年(三月)

参加顶级科学竞赛的美国高中生 WASHINGTON Some of the brightest high school students in the United States showcased their ground-breaking math and science research at the annual Intel Science Talent Search. Forty high school seniors, who

发表于:2018-12-18 / 阅读(38) / 评论(0) 分类 VOA标准英语2015年(七月)

Ladybugs love to snack and feast on other pests, so people began importing in Asian species called hollyqueen ladybugs as natural pest control. But in their new environments the hollyqueens wiped out native ladybugs and they have their parasites to t

发表于:2018-12-24 / 阅读(66) / 评论(0) 分类 Scientific American(五)月

assortde 各式各样的 category 类别 classify 分类 commonplace 普通 comprise 包含 component 部件 encyclopaedia 百科全书 decompose 分解 detach 分开 digest 领会 distinct 明显的 glossary 词汇表 homogeneous 同类的 indentical 相同的 paradox 似是而非的卷语 p

发表于:2018-12-30 / 阅读(116) / 评论(0) 分类 80天攻克雅思核心词汇

DEVELOPMENT REPORT – September 30, 2002: Dog Collars and Leishmaniasis By Jill Moss This is the VOA Special English Development Report. Up to five-hundred-million people are infected each year with

发表于:2019-01-02 / 阅读(97) / 评论(0) 分类 农业与发展

DEVELOPMENT REPORT - 80 Million Treated Against Elephantiasis By Jill Moss Broadcast: Monday, April 19, 2004 This is Robert Cohen with the VOA Special English Development Report. Elephantiasis Patient

发表于:2019-01-07 / 阅读(69) / 评论(0) 分类 农业与发展

Nigerian Doctor Honored for Fight Against River Blindness From VOA Learning English, this is the Health Report in Special English. Nigerian doctor Uche Amazigo has received the Prince Mahidol Award for outstanding efforts in public health. Dr. Amazig

发表于:2019-01-12 / 阅读(103) / 评论(0) 分类 2013年VOA慢速英语(五)月

NewTeststoQuicklyDiagnoseSleepingSickness New diagnostic tools are being tested that would quickly indicate whether a person has African sleeping sickness. Current methods of diagnosis are slow and cumbersome and delay life-saving treatment. Health o

发表于:2019-01-13 / 阅读(62) / 评论(0) 分类 VOA标准英语2011年(九月)

Microbe Could Help Battle Malaria Researchers have discovered a bacterium in the gut of the Anopheles mosquito which may someday be used to destroy and, therefore, prevent the spread of the disease-causing parasite. The World Health Organization esti

发表于:2019-01-14 / 阅读(74) / 评论(0) 分类 VOA标准英语2011年(五月)

Global Immunization: Despite Successes, Much More To Do Measles is one of the leading causes of childhood deaths worldwide. Not only does measles kill, but it can leave children blind, deaf or developmentally disabled, even while they are still in th

发表于:2019-01-14 / 阅读(45) / 评论(0) 分类 VOA标准英语2013年(五月)

Why The World Isn't Close To Eradicating Guinea Worm ARI SHAPIRO, HOST: For the past few years, the world has been on the edge of one of the biggest medical triumphs of modern history. A global effort has nearly wiped out the Guinea worm, a horrific

发表于:2019-01-17 / 阅读(67) / 评论(0) 分类 2016年NPR美国国家公共电台8月

RACHEL MARTIN, HOST: It seems like we've been hearing a lot about unsafe food these days. Just this year, there have been recalls for romaine lettuce, some varieties of the snack Goldfish and a Taco Bell-brand queso dip. McDonald's stopped selling sa

发表于:2019-01-17 / 阅读(135) / 评论(0) 分类 2018年NPR美国国家公共电台9月

DANIEL:Whatare you still doing here? TYLER: Waitingfor you, Danny. Always waiting for you. DANIEL:Youneed to go. Now. TYLER: Stepahead of you. I got myself a ticket back to Cali tonight. I thought maybe youcould come with me. I mean, come on.

发表于:2019-01-23 / 阅读(44) / 评论(0) 分类 跟着美剧练发音

This is the VOA Special English Development Report. The World Health Organization is using a new combination of drugs to treat human African trypanosomiasis disease, also known as sleeping sickness. The drugs nifurtimox an eflornithine will be given

发表于:2019-01-31 / 阅读(80) / 评论(0) 分类 2010年慢速英语(一)月

Children at Risk Despite Malaria Treatment Repeated bouts of malaria may leave children vulnerable to other deadly infections and even cardiovascular disease later in life. Now, a new study may explain why. About 200 children in Blantyre, Malawi, too

发表于:2019-02-01 / 阅读(60) / 评论(0) 分类 VOA常速英语2013年(九月)

Ya?l: Hey, Don, How come a rooster is fancier than a hen? Don: Ummm! I dunno, Ya?l. So drivers can see it when it crosses the road. Y: Nice try, but males birds are more brightly colored and have more ornamented feathers than females for two reasons.

发表于:2019-02-23 / 阅读(48) / 评论(0) 分类 英语时差8,16