Intelligent Crows Use Tools

Intelligent Crows Use Tools What do otters, chimpanzees, and one species of crow have in common? All three are animals. They also use tools. Scientists have long known that a crow native to New Caledonia is able to use tools. The birds use them to re

发表于:2018-12-16 / 阅读(39) / 评论(0)

2016年VOA慢速英语(九)月

VOA标准英语2011--st Known Human Hand-Ax Found in Kenya

Earliest Known Human Hand-Ax Found in Kenya Archaeologists working in northwestern Kenya have found a skillfully hand-crafted stone ax which appears to have been made nearly 1.75 million years ago, making it the oldest such tool ever discovered. The

发表于:2019-01-07 / 阅读(53) / 评论(0)

VOA标准英语2011年(九月)

运动休闲—攀岩:The ABCs of rock climbing

Rock climbing is the original extreme sport． Basically , rock climbing is going from the bottom of a wall to the top and then back down again. The main goal is to have fun while doing so and to pref

发表于:2019-01-07 / 阅读(116) / 评论(0)

奥运英语

60秒科学:On-The-Job Chimps Use Multiple Tools

To do a job right, you need the right tools. Even a chimp knows that. According to a study in the American Journal of Primatology, chimps in the Congo use multiple tools to capture army ants. Youve probably seen footage of chimps using sticks to har

发表于:2019-01-07 / 阅读(92) / 评论(0)

60秒科学

VOA标准英语2014--Bottle Museum Showcases Centuries-Old Handmade Glass Bottles 玻璃瓶博物馆展出历史悠久的手工玻璃瓶

Bottle Museum Showcases Centuries-Old Handmade Glass Bottles 玻璃瓶博物馆展出历史悠久的手工玻璃瓶 BALLSTON SPA, NEW YORK Until the beginning of the 20th century, glass bottles - for pharmacies, breweries, and dairy farms - were all

发表于:2019-01-14 / 阅读(37) / 评论(0)

VOA标准英语2014年(一月)

DEVELOPMENT REPORT - Tools for Development

DEVELOPMENT REPORT – July 29, 2002: Tools for Development By Jill Moss (Photo -CARE) This is the VOA Special English Development Report. Building things or making clothes can be difficult in develop

发表于:2019-01-30 / 阅读(74) / 评论(0)

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