You may have spotted V-shaped squadrons of geese heading south this fall. But for many migrantslike smaller songbirdsnighttime is the right time, when it comes to migration. Winds are gentler. And darkness helps them avoid airborne attacks. Of course

发表于:2018-12-02 / 阅读(49) / 评论(0) 分类 2016年Scientific American(十二)月

AS IT IS 2014-02-13 South Africans Find a New Way to Live 南非人寻找一种新的生活方式 Hello and welcome back. Im Jim Tedder in Washington. Today we travel to South Africa to see how the other guy lives. We will introduce you to a man who

发表于:2018-12-16 / 阅读(28) / 评论(0) 分类 2014年VOA慢速英语(二)月

Last year, I took up the hobby of birding or birdwatching after my friend took me out to observe some birds out near the lake. Basically, birding involves observing birds in their natural habitat. (Actually, you don't need to leave your backyard to o

发表于:2018-12-28 / 阅读(76) / 评论(0) 分类 空闲时间—In Your Free Time

Red couplets, red lanterns, red paper-cuts, red fireworks, red Chinese knots and more there's even red underwear. But it's not just red that's all around there are rats, rats and more rats. According to the Chinese lunar calendar, the upcoming Sprin

发表于:2019-01-05 / 阅读(60) / 评论(0) 分类 英语新闻视频

This mother bear's experience gives her family a good chance of survival until spring arrives. They will return again and again as the thaw releases more fish. On the warmer plains and valleys that surround the plateau, grazers are on the move. They

发表于:2019-01-05 / 阅读(39) / 评论(0) 分类 自然百科2012年

By Luis Ramirez Bangkok 03 September 2007 Researchers say studies do not confirm whether wild birds are carriers of the H5N1 bird flu virus. VOA's Luis Ramirez reports from Bangkok, where experts are gathering this week to figure out better ways to t

发表于:2019-02-08 / 阅读(88) / 评论(0) 分类 2007年VOA标准英语(九月)