单词：aluminum copper iron
单词：aluminum copper iron 相关文章
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
VOA2003（下）-发展与科学
图片1 metal n. 金属 例句：This metal is harder than that one. 这种金属比那种硬。 metallic adj. 金属(性)的 例句：Fannie' s shovel struck against something metallic when she wasplanting flowers in the garden. 当芬妮在花园里种
漫画搞定六级词汇（文本+音频）
Most works of art - paintings, sculptures, artistic jewelry - are created for a collector or patrons who visit a gallery. The artist makes something, and someone else buys it and takes it home. Others create large public art - sculptures and statues
VOA标准英语2010年(九)月
Part III Listening Comprehension (35 minutes) Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conv
英语六级听力练习集锦
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
知性英语
EDUCATION REPORT - 'Iron Science Teacher' and More at the ExploratoriumBy Nancy Steinbach Broadcast: Thursday, July 27, 2006 This is the VOA Special English Education Report. The Exploratorium is hous
2006年慢速英语（七）月
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
2006年慢速英语（七）月
Japanese Steelmaker Admits False Safety Information The Japanese manufacturer Kobe Steel is investigating problems with safety inspection information about its products. The company reported improper conduct related to some steel, aluminum and copper
2017年VOA慢速英语(十)月
AS IT IS 2015-03-25 Scrap Metal Separation May Become Less Costly 废金属分离技术成本可能会降低 Recycling, or re-using, metals is much less costly than making them from raw materials in the Earth, called ore. But when old cars, household
2015年VOA慢速英语(三)月
Some Volcanic Clays Kill Bacteria 一些火山灰能杀灭细菌 Ancient people knew that some kinds of clay have healing qualities. They rubbed clay on their skin to cover wounds. They also used the natural rock or soil material to treat stomach pro
2016年VOA慢速英语(二)月
Lesson 64 The Red Metal Called Copper 第64课 红色金属铜 There is only one metal which is red in colour. Its name is copper. On the shores of Lake Superior in North America, lumps of pure copper are found in the rocks; but in Cornwall , and in
英国学生科学读本
Good morning, everyone. Mining firm Glencore has said it's operationally and financially robust after questions were raised about its financial future. On Monday, its shares dived 30% after a note from analysts said its share value could be eliminate
澳洲ABC新闻快递2015年
The Streaming down the Yangtze team has arrived in the city of Tongling, Anhui Province. Owing to its copper deposits, it was an important center in ancient China for bronze production. The scale of the copper industry has gradually increased and it
2018CRI中国国际广播电台
Passage One 26. A. They were possibly caused by man. B. They were mostly caused by volcanoes. C. They were certainly caused by nature. D. We know nothing about their causes. 27. A. Afraid. B. Excited. C. Curious. D. Indifferent. 28. A. Copper and iro
英语四级听力-短对话
DEVELOPMENT REPORT - Reusing Metal Waste Provides Work For Many in Developing Countries By Gary Garriott Broadcast: Monday, April 04, 2005 I'm Gwen Outen with the VOA Special English Development Repor
农业与发展
Part 2. The Times capsule. Keywords. time capsule, future, be passed on. Vocabulary. copper, aluminum, stainless, non-rusting, leakproof, humidity, Zimbabwe. A. Do you know what a time capsule is and what it is for? Listen to the following explanatio
step by step 3000 第一册
Chinas latest effort to curb air pollution is raising hopes for the global aluminium industry, adding fresh momentum to a rally that has left the base metal as the best performer this year. 中国发起的旨在遏制空气污染的最新努力为铝价
英语新闻
We now know that there are a lot of microbes living deep within the Earth, many of which have nothing at all to do with the organic world. 我们现在知道了，有大量微生物生活在地球内部的深处，其中许多与普通的有机世界毫
万物简史
And two explosions in Boston, at the finishing line of Boston marathon have claimed two lives. According to local media outlets, including the Boston Globe, more than 100 people injured and are being treated in nearby hospitals. There's been a series
澳洲ABC新闻快递2013年
As you might expect, oxygen is our most abundant element, accounting for just under 50 percent of the Earth's crust, 你也许会想到，氧是最丰富的元素，占地壳的将近50%。 but after that the relative abundances are often surprising.
万物简史