酸热分解

Earth and Sky:Acid Rain 酸雨

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)

(科普英语)Earth and Sky

知性英语－Acid rain 酸雨

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(182) / 评论(0)

知性英语

CRI实用英语课堂 Unit 25 Environmental Protection II 环境保护（中）

Part 4 Air Pollution 空气污染 Air is the ocean we breathe. Air supplies us with oxygen which is essential for our bodies to live. Air is 99.9% nitrogen, oxygen, water vapor and inert gases. Human activities ca n release substances into the air, some

发表于:2019-01-02 / 阅读(109) / 评论(0)

CRI实用英语课堂

VOA常速英语2007年-Acid Attacks Are a Growing Form of Revenge in U

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(111) / 评论(0)

VOA常速英语2007年（十一月）

你会用“逗号”吗？

1. 在并列连词(and, but, for, nor, or, yet )前使用，用来连接句中的各分句。 The principal reason for this is that none of them possesses chlorophyll, andsince they cannot synthesize their own carbohydrates, they obtain their supplie

发表于:2019-02-19 / 阅读(59) / 评论(0)

托福英语

雅思写作语料库：家庭关系不紧密

雅思写作语料库：家庭关系不紧密社会类： It is generally accepted that families are not as close as they used to be. Give some reasons why this change has happened and suggest how families could be brought closer together. Include a

发表于:2019-02-26 / 阅读(95) / 评论(0)

雅思英语

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according to all accounts