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By Gary Garriott Broadcast: November 3, 2003 This is Steve Ember with the VOA Special English Development Report. People have been recycling metals for hundreds of years. Today, re-using metal waste o

发表于:2018-12-01 / 阅读(171) / 评论(0) 分类 VOA2003(下)-发展与科学

[00:01.00]Module 2 Developing and Developed Countries [00:09.22]Vocabulary and Listening [00:11.93]Activity 3 Check the meaning of these words [00:16.06]Now listen to the conversation and tick the topics you hear. [02:34.36]Activity 4 Listen again ch

发表于:2018-12-04 / 阅读(167) / 评论(0) 分类 外研社新标准高中英语必修(1-4)

DEVELOPMENT REPORT - Recycling Scrap Metal Into MoneyBy Gary Garriott Broadcast: Monday, July 31, 2006 This is the VOA Special English Development Report. People have been recycling metals for hundred

发表于:2019-01-02 / 阅读(55) / 评论(0) 分类 2006年慢速英语(七)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Thars gold in them thar hillsand we may have meteorites to thank. Because it appears that a rain of meteors nearly 4 billion years ago peppered the Earths

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(九)月

Vale, the worlds biggest iron ore miner, and Fortescue Metals Group have forged an agreement aimed at boosting their competitiveness in the key market of China, and giving the Brazilian company a foothold in the ore-rich Australian Pilbara region. 世界

发表于:2019-02-18 / 阅读(38) / 评论(0) 分类 英语新闻

LESSON 51 Metals 第五十一课 金属 Metals are seldom found in a pure state. 金属很少以纯物质状态被发现, They are generally found mixed with earth, stones, or other metals, from which they are separated by washing, crushing, or bur

发表于:2019-02-21 / 阅读(31) / 评论(0) 分类 英国语文第二册