This is Scientific American's 60-second Science, I'm Christopher Intagliata. 这里是科学美国人60秒科学系列，我是克里斯托弗因塔格里塔。 Hundreds of millions of years ago, reptilian predators called ichthyosaurs swam the seas....
This is Scientific American's 60-second Science, I'm Susanne Bard. 这里是科学美国人60秒科学系列，我是苏珊娜巴德。 In Botswana, farmers graze their cattle at the edge of the Okavango Delta. 在博茨瓦纳，农民在奥卡万戈三...
This is Scientific American's 60-second Science, I'm Karen Kwon. 这里是科学美国人60秒科学系列，我是凯伦权。 That's a bird called the hermit warbler. It breeds along the U.S. West Coast. 这种鸟名为隐莺。它在美国西海岸繁...
Species on Earth 地球可能有8百70万物种 By Paddy Clark, BBC News Scientists warn that human activity may threaten the survival of some species 媒体英语会带大家一起学习 BBC 撰稿人在报道世界大事时常用到的单词和短语...
Waste in Space 地球轨道 清道夫计划 By Jason Palmer, BBC News More than 17,000 pieces of space junk are floating around the Earth 媒体英语会带大家一起学习 BBC 撰稿人在报道世界大事时常用到的单词和短语。 Backgro...
媒体英语 Second Moon 地球或许曾有两个月亮 By Matt McGrath, BBC News The theory might explain the type of terrain seen today on the surface of the Moon 媒体英语会带大家一起学习 BBC 撰稿人在报道世界大事时常用到的单...
The Planet in 2011 今天的地球 英语学习点: Conservation Vocabulary 环保词语 Engineers are trying to stop radiation leaking in Fukishima This coming Sunday is World Environment Day. So what is the state of the planet in 2011? This time la...
More oral practice [00:20.38]更多的口头的实践 [00:22.15]Grandma's birthday is coming [00:24.37]奶奶的生日将要来了 [00:26.59]Make a dialogue about birthdays,like this: [00:28.72]关于生日的对话，象这样： [00:30.85]It's an i...
unit 4 The Earth [00:19.63]单元 四 地球 [00:21.55]Look and learn [00:23.08]看并且学习 [00:24.61]the Earth the Sun [00:26.95]地球 太阳 [00:29.28]stars the Moon [00:32.26]星星 月亮 [00:35.24]Look and say [00:36.77]看并且说 [00:38....
Researchers who studied stars similar to the Sun found that almost one in four could have small, rocky planets just like the Earth。 For their research, scientists spent five years studying 166 Sun-like stars within 80 light year or 470 trillion mil...
