The Secret Life of Roots Plant roots are important to life on earth. Roots take in water and nutrients that the plant needs to live and grow. They also help secure plants in dirt to prevent erosion - the breakdown of soil by natural forces. Roots are

发表于:2018-12-16 / 阅读(39) / 评论(0) 分类 2015年VOA慢速英语(九)月

You have hardened said the flower,bending her petals downward toward the half stone at her roots.These rains should have softened you.made you more fertile and receptive to the seeds of minerals;but no. You have accumulated minerals,become more sil

发表于:2018-12-31 / 阅读(108) / 评论(0) 分类 我们都是有故事的人之生而为赢

When I was growing up, I had an old neighbor named Dr. Gibbs. He didnt look like any doctor Id ever known. He never yelled at us for playing in his yard. I remember him as someone who was a lot nicer than 1)circumstances warranted. When Dr. Gibbs was

发表于:2019-01-02 / 阅读(44) / 评论(0) 分类 精美英文欣赏

We tend to think of cavemen as pretty serious carnivores, hunting game and then roasting the yummy bits over a roaring campfire. But scientists just reported discovering traces of starch on some ancient stone tools. Which suggests that there were pro

发表于:2019-01-08 / 阅读(58) / 评论(0) 分类 Scientific American(十)月

ROBERT GARCIA, HOST: What's up, everybody? Peace. Just a heads up, there may be some strong language in this episode. Ooo (ph). ADRIAN BARTOS, HOST: Some bad words. BLACK THOUGHT: Hey, what's up? This is Black Thought from the legendary Roots crew. A

发表于:2019-01-17 / 阅读(98) / 评论(0) 分类 2018年NPR美国国家公共电台9月

All-American Banjo Has African Roots 代表美国的班卓琴起源于非洲 NEW YORK From folk songs like Oh Susannah to its starring role in Bluegrass festivals, the banjo seems to be a quintessentially homegrown American instrument. However, as Co

发表于:2019-02-01 / 阅读(24) / 评论(0) 分类 VOA常速英语2013年(九月)