钙硅角岩, 钙硅角页岩

美国国家公共电台 NPR In 'Green,' A Pre-Teen Wisens Up To His Privilege

LAUREN FRAYER, HOST: It's 1992. Your hair is gelled up, you're sporting high-tops, maybe still listening to Run-DMC on cassette, and that's the setting for a new coming-of-age novel that's also a look at race in America. The book, titled Green, follo

发表于:2018-12-02 / 阅读(147) / 评论(0)

2018年NPR美国国家公共电台1月

口腔临床英语对话第6期:牙科手术(1)

Good morning Mrs. Hall. If none of your teeth are bothering you, I'll restore the tooth with the largest cavity. 霍尔太太，早安。假如你的牙齿不让你难受的话，那么我就把蛀的最厉害的牙补一补。 This is the tooth th

发表于:2018-12-03 / 阅读(124) / 评论(0)

口腔临床英语对话

英语动画:新东方爵以词雄词汇-刘一男 53

[全屏观看] 点击右键- 另存为可保存这个Flash影片第五段仿声词根和谐音词根（下） mod模式（模） mod e模型- mod el模特- mod ify更改，修改-com mod ity商品 - commod -词根：方便、便利ac commod ate-给

发表于:2018-12-10 / 阅读(296) / 评论(0)

《新东方 [爵以词雄] 词汇》刘一男

英语动画:新东方爵以词雄词汇-刘一男 54

[全屏观看] 点击右键- 另存为可保存这个Flash影片第六段会义的词根（上） calc石头（咔咔） - calc ium钙- calc ulate计算- cal endar日历 dig -挖 dig it-手指 dig ital-数字的 rock- 石头（ r- 滚，旋转） u

发表于:2018-12-10 / 阅读(165) / 评论(0)

《新东方 [爵以词雄] 词汇》刘一男

The Horniman Museum 霍尼曼博物馆

The script of this programme 本节目台词 See amazing sights at the Horniman Museum Neil: Welcome to On the Town from BBC Learning English, the programme where we visit interesting places in Britain. I'm Neil. Oliver: And I'm Oliver 我是 Oliver。 Neil

发表于:2018-12-19 / 阅读(117) / 评论(0)

都市掠影

美国科学60秒 SSS 2012-09-13

When Pyrex(公司名) cookware first came out, it was advertised as the ice box to oven, because itwas made of borosilicate glass which could weather large temperature changes without undergoing thermo-shock and shattering. But today, Americans Pyrex

发表于:2018-12-24 / 阅读(83) / 评论(0)

Scientific American(九)月

美国科学60秒 SSS 2012-09-12

This is scientific American sixty seconds science. I'm Christopher Intagliata. Got a minute? When Pyrex cookware first came out, it was advertised as icebox to oven. Because it was made of borosilicate glass which could weather large temperature chan

发表于:2018-12-24 / 阅读(72) / 评论(0)

Scientific American(九)月

AMERICAN MOSAIC - Shirley Horn Remembered | Baseball: Story

AMERICAN MOSAIC - Shirley Horn Remembered | Baseball: Story of White Sox Victory By Katherine Gypson and Jill Moss Broadcast: Friday, November 04, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC in VOA

发表于:2019-01-02 / 阅读(131) / 评论(0)

American Mosaic

South Africa Proposes Legalizing Limited Trade in Rhino Horn

The parliament of South Africa may soon consider a law that would permit limited trade and export of rhinoceros horn for personal use. The government proposed the law earlier this year. It accepted comments about the measure for 30 days. That period

发表于:2019-01-02 / 阅读(96) / 评论(0)

2017年VOA慢速英语(三)月

2005年NPR美国国家公共电台三月-In Arm Wrestling, Teen Beats Robots Hands

It was woman against machine at an arm-wrestling competition yesterday in San Diego. And as soon as we say, go, go ahead. In one corner, 17-year-old Panna Felsen, a high school studentand amateur robot builder, 5 feet 7 inches tall and 120 pounds, an

发表于:2019-01-07 / 阅读(170) / 评论(0)

2005年NPR美国国家公共电台

美国习惯用语: Lesson 245 - to blow one's own horn / to blow

在今天我们要讲的习惯用语里，一个关键的字就是To blow. Blow这个字是一个非常勤劳的字，因为许多习惯用语当中都有这个字。你要想再找一个像blow用得那

发表于:2019-01-08 / 阅读(161) / 评论(0)

美国习惯用语

VOA常速英语2014--在线虚拟教程传递农业新技术

Online Virtual World Program a Resource for Farmers 在线虚拟教程传递农业新技术 In a fast-changing world beset by unpredictable climate conditions, farmers cannot afford to ignore new technology. 面对当下变化无常的气候条件，农

发表于:2019-01-14 / 阅读(94) / 评论(0)

VOA标准英语2014年(七月)

TED演讲:可能存在生命的三颗卫星和一颗行星(4)

A few months ago the fairy tale came true. 几个月前，童话故事成真了！ We announced to the world that we know what these streaks are. It's liquid water. 我们向世界宣布，我们已经知道这些条纹是什么了。是液态水。

发表于:2019-01-18 / 阅读(104) / 评论(0)

TED演讲科学篇

TED演讲:可能存在生命的三颗卫星和一颗行星(5)

Cassini just a few months ago also flew through the plume, and it measured silicate particles. 卡西尼太空船几个月前又从这些飞溅的水流中穿过，它检测到了硅酸盐颗粒。 Where does the silica come from? 这些硅从哪来的

发表于:2019-01-18 / 阅读(114) / 评论(0)

TED演讲科学篇

经济学人133:塑料旧法新用

Science and Technology Plastics There and back again 科技塑料旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(105) / 评论(0)

经济学人科技系列

雅思阅读词汇：火山爆发(四)

manganese n. 锰（元素符号为Mn） mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化；adj. 熔铸的 monitor n. 监视器，监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(170) / 评论(0)

英文语法词汇

VOA标准英语2008年-Aid Group Warns of Horn of Africa Food Crisis

British humanitarian organization ActionAid is calling for governments in the Horn of Africa to help small-scale farmers and for donor nations to increase funding and food-aid shipments to the region. The organization says without urgent action, sev

发表于:2019-02-03 / 阅读(86) / 评论(0)

VOA标准英语2008年（八月）

China pledges more aid for Horn of Africa

BEIJING, Aug. 25 (Xinhua) -- China pledged on Thursday to make more efforts to aid people living in the drought-stricken Horn of Africa in collaboration with the International Committee for the Red Cross (ICRC). We noticed that the ICRC launched an a

发表于:2019-02-07 / 阅读(117) / 评论(0)

英语新闻

Huge asteroid will pass closer to Earth than the moon

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(104) / 评论(0)

英语新闻

VOA标准英语10月-Snow Falling From Martian Atmosphere

The U.S. space agency NASA's Mars probe Phoenix has detected icy snow falling through the Martian atmosphere. The spacecraft has also discovered material in the planet's soil that is leading scientists a step closer in their conclusion that life pro

发表于:2019-02-08 / 阅读(94) / 评论(0)

VOA标准英语2008年（十月）

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学英语单词

aminoalkyd resin quick drying baking varnish

attemped

automatic termination of cover