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万物简史第478期:生命在前进(20)

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(231) / 评论(0)

万物简史

SSS 2011-03-29

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(196) / 评论(0)

Scientific American(三)月

英文书摘精选有趣的事实,短嘴鳄可以再长牙齿

Fun Fact: Alligators Can Regrow Teeth 有趣的事实：短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(187) / 评论(0)

初学者听力文摘精选

英语听力文摘 English Digest 600、科学家如何预测火山喷发？

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(179) / 评论(0)

英语听力文摘 English Digest

SSS 2008-04-17

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(227) / 评论(0)

Scientific American(四)月

SSS 2009-11-13

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(242) / 评论(0)

Scientific American(十一)月

舞曲狂欢:Starstylers Ft.Michy - Keep On Moving

歌曲： Keep On Moving 艺人： Starstylers Ft.Michy 音乐星级： ★★★★★ 所属专辑：未知发行年代： 2006 风格： Dance 介绍：关于Starstylers Ft. Michy在网络上很难找到他们的信息，只知道他们好像是一个DJ组合，组合形式跟舞动精灵差不多，Keep On Movi

发表于:2019-01-11 / 阅读(265) / 评论(0)

舞曲狂欢

2007年VOA标准英语-Ugandan Laws Aim to Help Physically Handicapped

By Cathy Majtenyi Uganda 26 June 2007 The Ugandan government has taken a progressive approach to helping the disabled by passing legislation that recognizes the rights of the disabled, providing representation for them in Parliament and specifying me

发表于:2019-01-13 / 阅读(255) / 评论(0)

2007年VOA标准英语（六月）

2006年VOA标准英语-Ugandan Court Rejects Challenge to Electio

By Cathy Majtenyi Nairobi 06 April 2006 Uganda's Supreme Court has rejected an attempt by opposition politician Kizza Besigye to challenge the results of the country's recent elections, won by incumbe

发表于:2019-01-31 / 阅读(254) / 评论(0)

2006年VOA标准英语（四月）

流行美语第117课 - flip-flop / wishy-washy

今天Larry和李华在校园里闲逛，校园里到处都贴满了选举传单。今天李华会学到两个常用语：flip flop和wishy-washy. LL: Hey, Li Hua who do you support for class presiden

发表于:2019-02-03 / 阅读(320) / 评论(0)

美国之音《流行美语》

ealthy diet may help children with ADHD

BEIJING Jan. 10 (Xinhuanet) -- Keeping a healthy diet may help children with attention deficit hyperactivity disorder (ADHD) in their treatment, a new study revealed. The study was published Monday in the American medical journal Pediatrics. After an

发表于:2019-02-04 / 阅读(279) / 评论(0)

英语新闻

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(372) / 评论(0)

英语新闻

加州英语分级G1 Dan and the Painting 03

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发表于:2019-02-10 / 阅读(244) / 评论(0)

加州英语分级G1

加州英语分级G1 Dan and the Painting 08

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发表于:2019-02-10 / 阅读(238) / 评论(0)

加州英语分级G1

加州英语分级G1 Dan and the Painting 07

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加州英语分级G1

加州英语分级G1 Dan and the Painting 06

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发表于:2019-02-10 / 阅读(249) / 评论(0)

加州英语分级G1

加州英语分级G1 Dan and the Painting 05

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发表于:2019-02-10 / 阅读(223) / 评论(0)

加州英语分级G1

加州英语分级G5 Dan's Whale 08

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发表于:2019-02-19 / 阅读(211) / 评论(0)

加州英语分级G5

加州英语分级G5 Dan's Whale 07

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发表于:2019-02-19 / 阅读(234) / 评论(0)

加州英语分级G5

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发表于:2019-02-19 / 阅读(221) / 评论(0)

加州英语分级G5

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