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

发表于:2018-12-28 / 阅读(31) / 评论(0) 分类 初学者听力文摘精选

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

发表于:2019-01-13 / 阅读(38) / 评论(0) 分类 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

发表于:2019-01-14 / 阅读(44) / 评论(0) 分类 VOA标准英语2014年(七月)

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

发表于:2019-01-22 / 阅读(53) / 评论(0) 分类 自然百科2013年

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

发表于:2019-02-05 / 阅读(27) / 评论(0) 分类 VOA标准英语2019年(一月)

A wasp had severely stung a horse,and the latter kicked and pranced about,with the intention of destroying its tormentor.Your exertion is in vain,said the wasp,for I am in such a secure place on your flank,that you cannot hurt me.The ho

发表于:2019-02-06 / 阅读(58) / 评论(0) 分类 趣味英语