In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(57) / 评论(0) 分类 Scientific American(十二)月

Words That Are Their Own Opposites And now, Words and Their Stories, a VOA Learning English program about American expressions. When you are learning a language, context is everything. Here, context means the words around another word or phrase that

发表于:2018-12-16 / 阅读(26) / 评论(0) 分类 2015年VOA慢速英语(六)月

Experiencing a Drought Fabian: How long do you think this drought is going to last? Lia: I have no idea, but Im not worried. I grew up in the desert. Not having enough precipitation was just a fact of life. Fabian: Yes, but people here arent used to

发表于:2018-12-27 / 阅读(50) / 评论(0) 分类 2015年ESL之日常生活

Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the

发表于:2019-01-02 / 阅读(105) / 评论(0) 分类 60秒科学

Mr. Rabbit Kills a Wolf One day all the beasts of the forest came to one place. All the big beasts came, and all the little beasts came. There were horses and cows and rabbits and foxes and ducks and mice and birds, and all the other living things. T

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 趣味英语

Chapter 5 - The retreat From Smolensk the troops continued to retreat, followed by the enemy. On the tenth of August the regiment Prince Andrey commanded was marching along the highroad past the avenue leading to Bald Hills. Heat and drought had cont

发表于:2019-01-18 / 阅读(17) / 评论(0) 分类 有声英语文学名著