单词：ozone sphere
单词：ozone sphere 相关文章
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
听一分钟英文-O
There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th
英语课程学习计划和讲义
词条 含义 近义 solo n. 独奏曲 adj. 单独的 unaccompanied , single soloist n. 独奏者，独唱者 soluble adj. 可溶的，可溶解的 dissolvabel, meltable solution n. 解答，解决 n.
王玉梅托福词汇配套MP3
Working Towards An Electronic World 建立电子化世界 For many years now, HP has been working towards a world of pervasive information technologies that will characterize the 21 st century. 多年年来，惠普公司一直在位建立一个信息技
历史英雄名人演讲
Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S
(科普英语)Earth and Sky
Scientists and designers in London have found a possible solution to the problem of plastic bottle waste. 英国伦敦的科学家和设计师发现一个可以解决塑料瓶垃圾问题的方法。 The group at Skipping Rocks Lab has made a water b
2017年VOA慢速英语(五)月
Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many
2018年VOA慢速英语(五)月
Chinas enrollment figures in private English as a Second Language (ESL) courses and related test preparation programs continue their longstanding high growth rates. 长期以来，中国报名参加英语学习及相关考前培训的人数持续高速
英语阅读理解
Without a care we stand fast, before an endless sea. Impervious to any storm blowing our way. Without fear we glance into spiteful eyes, as we walk determined, dressed to the nines. Carelessly we let them sling their pebbles at our feet. Continuously
英文摇滚歌曲
By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the
VOA2003（下）-环境与健康
天文学 astronomy 天文学 astronomical 天文的 astronomical observatory 天文台 astronomer 天文学家 astrophysics 天文物理学 astrology 占星学 pseudoscience 伪科学 cosmos(universe) 宇宙 cosmology 宇宙学 infinite 无限的 co
托福英语
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
纯正英语一分钟
25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00
科技之光
对于备考新TOFEL考生来说，首先最大的挑战和最大的难点就是单词很难记，而且容易忘，由于记不住单词而英语学习效率非常低，学英语时间拖的就比较长，所以，学习一长就没有兴趣了；一准
实用英语
What is at the center of the universe? 宇宙的中心是什么？ It's an essential question that humans have been wondering about for centuries. 这是个很重要的问题，几百年来，人们一直在探索。 But the journey toward an answer
TED演讲教育篇
1 ASTRONOMY 天文 astronomy 天文学 astronomical 天文的 astronomical observatory 天文台 astronomer 天文学家 astrophysics 天文物理学 astrology 占星学 pseudoscience 伪科学 cosmos(universe) 宇宙 cosmology 宇宙学 infinite 无限
实用英语
So, think of the three settings I've talked to you about: 那么想想这3个我所谈到的背景： factory, migration, office. 工厂，移民，办公室。 But it could be in a school, it could be an administration, 但这也可能在学校，在政
TED演讲科学篇
A Chinese biotechnological company announced on Sunday it has developed the world's first 3D blood vessel bio-printer, which makes it possible to produce personalized functional organs. 本周日，中国的一家生物技术公司宣布，它已经研
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