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STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about the history of radio and the latest technology. (MUSIC) SHIRLEY GRIFFITH: Our story begins in Britain in eighteen seventy-three. A scientist named James Max

语音语调-体验练习

强读与弱读，体验练习 What's the machine for? It's for detecting oil. Where are you from? iI'm from the uk. Who can finish the task? I can John and iI will return soon. Johnny is a driver, and Mary is a driver too. Will mary go to london? Yes, she

VOA标准英语2015--新工具提高建筑物的能源效率

New Tool Maps Buildings' Energy Efficiency 新工具提高建筑物的能源效率 Architects, engineers and building managers will soon be able to quickly collect data about building interiors that once took weeks to measure and process. A backpack-

TED演讲：气味背后的科学(8)

OK, great, we smell vibrations. How? All right? 好吧，我们闻到的是震动。怎么闻到呢？ Now when people ask this kind of question, they neglect something, which is that physicists are really clever, unlike biologists. 当人们问这个问

科学美国人60秒 SSS 2014-08-20

Do you like working up a sweat? Or do you feel like maybe sweat should work for you? Well, hold on to your sudoriferous glands. Because researchers have designed a device that could someday produce power from your perspiration. The schvitzy scheme wa

考研英语长难句讲解 第22期

1. This means that our noses are limited to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. 【分析】多重复合句。句子主干为 This means that...，that 引导宾语从句。宾语

英语博客：Analysis Time - Detecting Explosives.

Technology being(1) developed at Pacific Northwest National Laboratory could put(2) explosive-sniffing(3) dogs out of business. Just like dogs, the technology can 'sniff' the air to detect vapors from explosives. Unlike dogs, it doesn't need to be fe

VOA慢速英语2018--July 23, 2003: History of Radio

(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag

SSS 2008-02-08

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Last month the journal Science reported that a Swedish company was planning on using the body heat generated by commuters in a Stockholm train station to

VOA慢速英语2015 新型可穿戴附加设备有效减轻腿部肌肉的负荷

Motor-Free Device Reduces Stress from Walking 新型可穿戴附加设备有效减轻腿部肌肉的负荷 Devices that help people walk were once thought to be difficult, if not impossible, to design. Until recently, such a device required electrici

VOA慢速英语2016 智利学生研发植物充电设备--花草也可做电源

Plant Your Mobile Charger in the Dirt 智利学生研发植物充电设备--花草也可做电源 Three university students in Santiago, Chile have developed a plant-powered device to charge their mobile phones. 在智利首都圣地亚哥, 3名智利大

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美国研究人员尝试从微风中获取能源 Solar chargers are effective only when the sunlight is relatively strong,but researchers at the Construction Engineering Research Laboratory in Illinois turned to the wind as another natural source of

VOA常速英语2015--科学家发明无动力助行走设备

Scientists Develop Motor-free Device That Eases Walking Strain 科学家发明无动力助行走设备 Devices that help people walk were once thought to be impossible to design without some kind of auxiliary power. But U.S. scientists at Carnegie Me

VOA标准英语2010年-British Sleuths Find Buried Treasure

Metal detecting is a popular hobby in Britain, with clubs across the country. In the past year, detectorists, as they are called in Britain, have made big finds, valuable both in financial and archaeological terms. Jennifer Glasse | London 12 January

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During her speech, Pritzker explains the central message of her visit to China and the U.S. side's approach to environmental protection. The central message of our visit is with responsible partnership we will do more business together and in doing s

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如今，高端大气上档次已经成为众人耳熟能详的网络用语，凭借其无与伦比的受欢迎度，高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语，到底

迷你对话学地道口语第836期:走神

Subject : Why are you always out in the left field? 第一， 迷你对话 A: Why are you always out in the field while listening to the news? 为什么你听新闻的时候不专心啊？ B: I am listening to the music and I couldnt help moving my b

手机充电新姿势 划屏幕就能给手机充电

The movement of finger swipes may soon be able to charge our cellphones. 手指滑动的动作可能很快就可以为我们的手机充电了。 Researchers at Michigan State University have created a new way to harvest energy from human motion, usi

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(1)it引导的强调句 1)It + is/was + 被强调部分 + that/which/who/whom/whose + 句子的其他成分： 在这一结构中，如果被强调部分是人，用that，who，whom;如果被强调部分是物，用that或which;强调状语时，只能