Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(447) / 评论(0) 分类 新概念优美背诵短文50篇

AS IT IS 2014-06-28 DIY Microscope Costs Only One Dollar 自制显微镜只需一美元 From VOA Learning English, this is As It Is. Today we hear about a recent development in microscope technology. Now, you might think this will be about a costly a

发表于:2018-12-16 / 阅读(49) / 评论(0) 分类 2014年VOA慢速英语(六)月

So over the past few centuries, microscopes have revolutionized our world. 过去的几个世纪,显微镜改变了世界。 They revealed to us a tiny world of objects, life and structures that are too small for us to see with our naked eyes. 它揭

发表于:2018-12-18 / 阅读(45) / 评论(0) 分类 TED演讲科技篇

Losing a limb is traumatic in any circumstances, but it can become a poverty trap for those without access to advanced medical care. The Indian state of Rajasthan is home to one of the world's largest charities devoted to empowering amputees by givin

发表于:2018-12-19 / 阅读(51) / 评论(0) 分类 VOA双语新闻 2012年1月

In the space that used to house one transistor, we can now fit one billion. 在以前,可以放置一个晶体管的空间,现在可以放10亿个。 That made it so that a computer the size of an entire room now fits in your pocket. 这导致曾经

发表于:2019-01-03 / 阅读(51) / 评论(0) 分类 TED演讲科学篇

More than 82 millions phones are damaged each year after being dropped down the toilet, into swimming pools or lost at the beach. 每年都有超过8200万部手机因为掉进厕所、泳池或在海滩上丢失而损坏。 A number of waterproof ha

发表于:2019-01-08 / 阅读(64) / 评论(0) 分类 阅读空间

A: What kind of music do you enjoy listening to? B: I enjoy listening to all kinds of music. A: What kind? B: I like to listen to Rock and RB. A: Why do you like that type of music? B: I like the kinds of instruments that they use. A: I think that's

发表于:2019-01-20 / 阅读(121) / 评论(0) 分类 英语闲谈

If theres one thing bigger than the Spice Girls, its a team back and despite its been opening at night to the bands new musical Viva Forever, Posh decided to go it alone. But Sporty, Scary, Ginger and Baby stood together to celebrate the return of gi

发表于:2019-01-29 / 阅读(54) / 评论(0) 分类 英伦广角

Last month, artist Aaron Chervenak drove from Los Angeles to Las Vegas, Nevada to finally take the love for his smartphone to the next level by marrying it at a small wedding chapel. And yeah, in case youre wondering, he even put a ring on it. 上个月

发表于:2019-02-06 / 阅读(70) / 评论(0) 分类 英语新闻

Any simple organisms, alas, would have been baked away by the processes that turned ocean mud to stone. 哎呀,任何简单的生物都会在海洋污泥变成石头的过程中被烘烤没了。 Instead what we would see if we crunched up the rock

发表于:2019-02-17 / 阅读(76) / 评论(0) 分类 万物简史

48 Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bac

发表于:2019-02-17 / 阅读(67) / 评论(0) 分类 双语有声阅读

microcomputer n.微型计算机 microphone n.话筒,扩音器 microprocessor n.微处理器 microscope n.显微镜 microscopic a.显微镜的;微观的;细致的 microwave n.微波 middle n./a.中间(的

发表于:2019-02-17 / 阅读(62) / 评论(0) 分类 考研英语

你也是手机奴吗 Cellphone feels like a part of your body? A global survey has found that most people can't live without their mobiles, never leave home without them and, if given a choice, would rather lose their wallet. Calling mobile phones t

发表于:2019-02-17 / 阅读(69) / 评论(0) 分类 实用英语

If you are addicted to your smartphone, you may well be suffering from nomophobia (no mobile phone phobia). That simply means you are scared of the thought of being without your smartphone. How will you stay in contact with your friends and other con

发表于:2019-02-17 / 阅读(94) / 评论(0) 分类 阅读空间

China is seeking to make its own secure smartphones, in an attempt to insulate its handsets from US surveillance. 中国正寻求自主研制安全智能手机,以防中国手机被美国监控。 The effort involves both State-owned companies and

发表于:2019-02-17 / 阅读(46) / 评论(0) 分类 英语新闻

Joe Hollier, a 25-year-old former skater turned technology entrepreneur, describes the moment of transcendental calm when he gave up his smartphone. Mr Hollier had started going light, leaving behind his high tech pocket companion and disconnecting f

发表于:2019-02-18 / 阅读(67) / 评论(0) 分类 英语新闻

They may be called smartphones but the handsets could be damaging some students grades。 他们被称为智能手机,然而这些电子设备也许正在影响学生们的功课成绩。 In an experiment, pupils who were given a free iPhone used i

发表于:2019-02-18 / 阅读(65) / 评论(0) 分类 英语新闻

Americans get the best new handsets from Apple first. But in China, there are ways of living your life through a smartphone that left us jealous. China has even figured out a business model to legitimately stream the current season Game of Thrones on

发表于:2019-02-18 / 阅读(55) / 评论(0) 分类 阅读空间

If the last face you see at night is the home screen of your glowing tablet, and the first is the email app of your smartphone, you officially need to cut it out. Here are 10 quick and easy ways to tap the brakes without resorting to hermithood or a

发表于:2019-02-18 / 阅读(83) / 评论(0) 分类 阅读空间

SPIM stands for Selective Plane Illumination Microscopy. SPIM is a new kind of microscope technology. It provides a significantly sharper image than current microscopes, and it also allows one to study living organisms without destroying or harming t

发表于:2019-03-06 / 阅读(116) / 评论(0) 分类 英语时差8,16