Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(146) / 评论(0) 分类 (科普英语)Earth and Sky

Item eight. Vocabulary. fossil, molecule, hydrogen, carbon, sulfur. Petroleum has been important since ancient times. In Latin, the name means rock oil. Petroleum is a fossil fuel. The liquid comes from the remains of plants and animals that died mil

发表于:2018-12-27 / 阅读(41) / 评论(0) 分类 step by step 3000 第一册

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 知性英语

Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i

发表于:2019-01-02 / 阅读(91) / 评论(0) 分类 英语导读1000句

AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa

发表于:2019-01-12 / 阅读(78) / 评论(0) 分类 2016年VOA慢速英语(二)月

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十一月)