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Wandering in Brazilian Forest 漫步巴西森林 February 29th, 1832 1832年2月29日 The day has past delightfully. Delight itself,however, is a weak term to express the feelings of a naturalist who, for the tirst time, has been wandering by himself

见信如晤Letters Live 第15期:'露易丝布瑞莉'读信:女性不应该被完全废除吗(2)

Later on in life they are subject to grave and long-continued mental disorders, and, if not quite insane, many of them have to be shut up. 她们在后来的人生中会遭受长期严重的精神障碍，如果不是相当疯狂，她们中的很多人

VOA慢速英语-Development Report - Fighting Witchweed in African S

Scientists develop herbicide-resistant seeds that can kill the parasitic plant. Transcript of radio broadcast: 23 June 2008 This is the VOA Special English Development Report. A sorghum field infested with striga, or witchweed Farmers in Africa call

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166. A very passionate research physicist激情洋溢的物理学家 parameter-path Russian-born Alex Bronsky was a passionate researcher in the area of particle physics. His work was of paramount importance in his life, and the parameters of his res

VOA慢速英语2009年-Agriculture Report - New Findings About Di

This is the VOA Special English Agriculture Report. Colony collapse disorder first struck honey bees in the United States in late two thousand six. Over the next two years, beekeepers lost more than one-third of their honey bees. Scientists in the U

VOA标准英语2009-Ethiopian Scientist to Receive 2009 World Fo

Ethiopian scientist was named on Thursday as the winner of the 2009 World Food Prize in an event at the U.S. State Department. Ejeta, a faculty member at Purdue University in the Midwestern U.S. state of Indiana, was honored for his work on drought

VOA标准英语2011--Cheaper, Safer Pill Targets Tropical Parasite

Cheaper, Safer Pill Targets Tropical Parasite Scientists have developed a new version of a drug used to treat leishmaniasis. The new formulation may help better battle this tropical parasitic disease. Leishmaniasis is transmitted by the bite of certa

VOA标准英语2014--美用黄蜂对抗甲虫入侵

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VOA常速英语2015--智能手机成为疟疾诊断工具

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VOA标准英语2014--环境奖获得者通过狼来理解人性

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Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives. And there are a lot of suspected culprits for this so-called beepocalypsefrom parasitic mites, to viruses, to simple land use changes. But a study out earlier this year

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This bee is carrying a deadly cargo, tiny parasitic mites called varroa. Even wings beating at 450 times a minute can't shake them off. The bee itself is in danger, and it's about to deliver a full cargo back to the hive along with the pollen. Back a

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The flower morph larva in the muesli get busy, spinning a web. In the process coating with cereal and sticky tendrils. Not very appetising. And seen under the scanning electro-microscope, the blue cheese Maria bought at the market looks even less app

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AntIntrigue 蚂蚁的阴谋 Don: Hey,antslives are full of intrigue. Take slave-making ants. They invade other ants nests, kill some of the adults, and then steal the larvae and take them back to their own nests. The larvae learn who they belong to b

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Earlier this year, President Bush said the United States would spend $350 million over five years to fight seven of the world's most common parasitic and bacterial diseases affecting hundreds of millions of people in tropical regions of the world. A

VOA常速英语2018--回顾2018年的重要科学记忆点

For the residents of the English city of Salisbury, 2018 will be remembered as the year the nerve agent Novichok came to town. Professor Andrea Sela calls it a uniquely devastating poison. The nervous system just fires wildly, and so you get all thes

VOA标准英语2009年-Disease Hits Kenyan Crops

Kenya, with nearly a quarter of its 38 million people facing severe hunger, is now reporting a rapid spread of diseases affecting the country's vital wheat and banana crops. The crisis is being exacerbated by plummeting public confidence in the coun

VOA标准英语2011--Neglected Diseases Afflict South Asia's Poor

Neglected Diseases Afflict South Asia's Poor At a time when economists predict that South Asia's economy will grow, health experts point to hundreds of millions suffering from neglected infections, often as a result of poverty. In a series of new stu

2015年CRI Chinese Scientist Tu Youyou Wins 2015 Nobel Prize in Medicine

Jan Andersson from the Nobel Prize Committee in Physiology or Medicine explained why Tu Youyou won the Nobel Prize. Youyou Tu got half of this year's prize for her discovery of Artemisinin, and she did that from an herb, so she was the one who identi

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By now, the empire was larger than Rome. It stretched from Morocco in the west to the Indus River in the east where the border of India is today. How had it happened that so small an army could conquer an area so large, so fast, so easily? Islams suc