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发表于:2018-12-04 / 阅读(175) / 评论(0)

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Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头，盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(131) / 评论(0)

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EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(130) / 评论(0)

2013年VOA慢速英语(二)月

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BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(153) / 评论(0)

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This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(194) / 评论(0)

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In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(151) / 评论(0)

TED演讲科学篇

SSS 2011-10-07

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(146) / 评论(0)

Scientific American(十)月

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This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(148) / 评论(0)

Scientific American(三)月

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The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(197) / 评论(0)

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发表于:2019-01-12 / 阅读(168) / 评论(0)

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发表于:2019-01-13 / 阅读(117) / 评论(0)

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今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了，

发表于:2019-01-16 / 阅读(216) / 评论(0)

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Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为，我是说，耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

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Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(202) / 评论(0)

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Tom is applying for a job as a signalman for the local railroad, and is told to meet the inspector at the signal box. The inspector decides to give Tom a pop quiz, asking, What would you do if you realized that two trains were heading towards each ot

发表于:2019-01-26 / 阅读(201) / 评论(0)

趣味英语

Ukraine's Elena Svitilona wins ITF circuit Tunisian Open

TUNIS, March 24 (Xinhua) -- Elena Svitilona of Ukraine won the la Marsa Open after beating Bulgaria's Isabelle Shinikova 7-6, 7-6 in the final on Saturday in the north of the capital. On Friday, Svitilona easily defeated Tunisian hopeful Ons Jabeur,

发表于:2019-02-06 / 阅读(197) / 评论(0)

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发表于:2019-02-14 / 阅读(196) / 评论(0)

2018年科学美国人10月

CCTV9英语新闻：Foreign cargo ship grounded for sinking Chinese fishing boat

A foreign Cargo ship has been grounded for sinking a Chinese fishing boat with 19 on board in the East China Sea. An initial investigation showed that a Maltese cargo ship, the CATALINA, is suspected of hitting the local fishing boat. Two crew member

发表于:2019-02-18 / 阅读(149) / 评论(0)

cctv9英语新闻2016年

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据说很多明星和模特为了保持身材，什么办法都用。不吃饭只吃水果那是好的，有的会故意喝凉水让自己拉肚子，有的则嚎啕大哭消耗卡路里，更有甚者用手扣喉咙，把吃完的都吐出来。为了

发表于:2019-02-18 / 阅读(216) / 评论(0)

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