单词：parasitic wasps
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Broadcast: Jan 29, 2003 The use of insects as agents of warfare is not a new idea. In the 2) Biblical story of the 3) Exodus, one of the 4) plagues visited upon the Egyptians was a horde of 5) locusts
VOA2003（上）-科技先知
WHITFIELD: Finally getting their due. Some of the forgotten heroes of World War II are being honored today in Washington. We're talking about the WASPs. CNN's Jessica Yellin explains. (BEGIN VIDEOTAPE) JESSICA YELLIN, CNN NATIONAL POLITICAL CORRESPON
CNN2010年(三)月
This is Scientific American - 60 second Science. I'm Christopher Antaryata. Got a minute? We humans take medicine when we are sick. As due our primate cousins, chimps, for example, snack on a bitter African shrub to combat intestinal worms. But the h
2015年Scientific American(八)月
Fruit Flies Love Alcohol! 果蝇喜欢酒精！ When human females are pregnant, theyre advised to stay away from alcohol, for fear of harming the fetus. And most parents refrain from giving their infants bottles full of whiskey or beer, for obvious
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This is Scientific American 60 second Science, I'm Cynthia Graber, got a minute? Were not the only animals that like to knock back the hard stuff. Studies have shown that some mammals seek out food and drink that naturally contains alcohol. And accor
Scientific American(二)月
EXPLORATIONS - Jackie Cochran Traveled With the Wind and the Stars She was the first woman to fly a plane faster than the speed of sound. Transcript of radio broadcast: 06 May 2008 VOICE ONE: This is Steve Ember. VOICE TWO: Jacqueline Cochran And th
VOA慢速英语2008年（五）月
By Carol Pearson Washington, D.C. 26 June 2007 Smallpox was the first infectious disease ever to be eradicated worldwide. But now, thanks to a two-decade campaign, guinea worm disease is about to be eradicated as well. Unlike smallpox, guinea worm di
2007年VOA标准英语（六月）
LA Museum Takes Visitors Outdoors to Showcase Nature For some of these young students, it's their first time getting hands-on experience in a garden. Teacher Eva Eng says her students have been learning about plants in science class. Oh, they really
VOA标准英语2012年(四月)
Wasp Recruited to Fight Invasive Beetle 美用黄蜂对抗甲虫入侵 Scientists are pitting insects against insects in a battle to control an invasive species. U.S. Department of Agriculture researchers have released tiny parasitic wasps in forests
VOA标准英语2014年(七月)
Sycomore figs are found throughout tropical Africa. In Southern Kenya they thrive along river banks. This is the story of one of those trees. Our African queen is a mature sycomore fig. She started life as a seed one hundred years ago. She provides f
自然百科2009年
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
自然百科2013年
The End of the Whole Mess by Stephen King Read by Matthew Broderick I want to tell you about the end of war, the degeneration of mankind, and the death of the Messiah - an epic story, deserving thousands of pages and a whole shelf of volumes, but you
英文短篇小说
'Bees don't sting unless they have to, because it kills them,' Bobby said matter-of-factly. 'You remember that time in North Conway, when you said we kept killing each other because of original sin?' 'Yes. Hold still.' 'Well, if there is such a thing
英文短篇小说
EXPLORATIONS - Jacqueline Cochran By Marilyn Christiano Broadcast: Wednesday, August 18, 2004 VOICE ONE: This is Steve Ember. VOICE TWO: Jacqueline Cochran. And this is Faith Lapidus with EXPLORATIONS
Explorations
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2019年(一月)
Procrastination拖延症 Procrastination refers to the act of replacing high-priority actions with tasks of low-priority, and thus putting off important tasks to a later time. Some psychologists cite such behavior as a mechanism for coping with the a
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Listening to his narrative I had completely forgotten the events of the previous night, the slain streetwalkers, and my suspicion of Holmes. At this point, Holmes continued, I knew that I needed to consult an expert. Mr. Wells, of whom I spoke earlie
英文短篇小说
I confronted Holmes with the papers and my suspicions. I had hoped, more than I hope for paradise, that he would dismiss my deductions with his soft, mocking laugh, and show me some utterly commonplace alternative explanation of the facts. My hopes w
英文短篇小说
Of the many adventures in which I have participated with my friend Mr. Sherlock Holmes, none has been more singularly horrifying than the case of the Whitechapel killings, nor ever had I previously had cause to doubt the sanity of my friend. I need b
英文短篇小说
The mayor of a Montreal bedroom community who was enjoying a weekend in the country has died of anaphylactic shock after wasps attacked her with repeated stings. 一名蒙特利尔近郊小镇镇长在乡下度周末时被黄蜂反复蛰咬后因过敏
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