[00:02.31]Forests [00:03.63]The world's forests are the natural habitats [00:05.99]for millions of species of plants, [00:08.33]insects, birds, reptiles and mammals. [00:11.68]They also help produce clean oxygen. [00:14.47]Because of illegal logging,

发表于:2018-12-13 / 阅读(78) / 评论(0) 分类 北师大版高中英语模块8(选修)

本讲为2006年下半年新的教学内容,请对照讲义听声音! Students(researcher/scholar) of Nature are not satisfied with guessing, but they observe, day after day, the changes which tak

发表于:2018-12-30 / 阅读(49) / 评论(0) 分类 自考英语(一)78讲

Although chemistry had come a long way in the century that separated Newton and Boyle from Scheele and Priestley and Henry Cavendish, it still had a long way to go. Right up to the closing years of the eighteenth century (and in Priestley's case a li

发表于:2019-01-29 / 阅读(34) / 评论(0) 分类 万物简史

学科SUBJECTDISCIPLINES 科目Subjects 声学Acoustics 农业生态学Agriculturalecology 农业经济学Agriculturaleconomics 农业工程Agriculturalengineering 农业林学Agroforestry 分析化学

发表于:2019-02-04 / 阅读(78) / 评论(0) 分类 英文语法词汇

UNITED NATIONS, May 12 (Xinhua) -- More than 80 percent of people living in urban areas that monitor air pollution are exposed to air quality levels that exceed the limits set by the World Health Organization (WHO), a UN spokesman said here Thursday.

发表于:2019-02-04 / 阅读(28) / 评论(0) 分类 英语新闻

模仿文本: We're one of the world's biggest spenders when it comes to biscuits, forking out nearly as much on them as we do on fruit and vegetables. But should you for one moment think that things are just as they were, well, think again. Radical

发表于:2019-02-16 / 阅读(23) / 评论(0) 分类 英音模仿秀