新东方背诵文选 L36.Plate Tectonics and Sea-floor Spreading

The theory of plate tectonics describes the motions of the lithosphere, the comparatively rigid outer layer of the Earth that includes all the crust and part of the underlying mantle. The lithosphere(

发表于:2018-12-01 / 阅读(142) / 评论(0)

新东方背诵文选

SCIENCE IN THE NEWS - Plate Tectonics

SCIENCE IN THE NEWS - Plate Tectonics By Marilyn Christiano Broadcast: Tuesday, February 17, 2004 (THEME) VOICE ONE: This is Science in the News, in VOA Special English. I'm Sarah Long. Graphic Image

发表于:2018-12-07 / 阅读(64) / 评论(0)

科技之光

VOA慢速英语2012--SCIENCE IN THE NEWS - The Moving Story of Plate Tectonics

SCIENCE IN THE NEWS - The Moving Story of Plate Tectonics FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Scientists who study the Earth tell us the continents and ocean floors ar

发表于:2019-01-12 / 阅读(67) / 评论(0)

2012年VOA慢速英语(一)月

“加勒比石油计划”(PETROCARIBE)第7次首脑峰会召开

CARACAS, May 5 (Xinhua) -- The 7th Summit of the Petrocaribe oil alliance opened here on Sunday, with the aim of creating a special economic zone for member states. The meeting has attracted leaders, officials and representatives from the 18 Petrocar

发表于:2019-02-05 / 阅读(37) / 评论(0)

英语新闻

万物简史第262期:大地在移动(16)

Earth is alone among the rocky planets in having tectonics, and why this should be is a bit of a mystery. It is not simply a matter of size or densityVenus is nearly a twin of Earth in these respects and yet has no tectonic activity. It is thoughttho

发表于:2019-02-25 / 阅读(67) / 评论(0)

万物简史

万物简史第265期:大地在移动(19)

Australia, meanwhile, has been tilting and sinking. Over the past 100 million years as it has drifted north toward Asia, its leading edge has sunk by some six hundred feet. It appears that Indonesia is very slowly drowning, and dragging Australia dow

发表于:2019-02-25 / 阅读(76) / 评论(0)

万物简史

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