数学英语 38 What Do Prefixes Mean in Math? - Part 1

by Jason Marshall We use a lot of math words in our day-to-day lives without really understanding what they mean or where they come from. For example, prefixes like mega, giga, and tera that we use to describe computer hard drive sizes (think megabyt

VOA标准英语2012--Olympic Power Couple Loyal to Two Nations

Olympic Power Couple Loyal to Two Nations By tradition, the Olympic decathlon champion assumes the title of the world's greatest athlete. Those are big shoes to fill. But this month, a 24-year-old from the U.S. state of Oregon installed himself as th

VOA标准英语2010年-Catching a Wave - and its Energy

One of the newest sources of alternative energy is also one of the oldest - water power. The 19th century water wheel, though, bears no resemblance to the 21st century contraptions powered by ocean waves. The wave energy sector has been slow to coale

SSS 2012-01-13

This is Scientific America's 60 second science, I'm Sentay Graber, this will just take a minute. Magnifying glass, telescope, tiny tiny tape measure, these are the weapons with which researchers are fading it out to find the world's smallest frog.One

SSS 2012-01-16

Magnifying glass, calipers, teeny tiny tape measure, these are the weapons with which researchers are fighting it out to find the world's smallest frog. One team just announced the discovery of the unaverage 7.7 millimeter p* which can sit comfortabl

万花筒 2011-03-12&03-13 日本发生8.9级强地震

Cameras captured the moment the earthquake hit at 2:46 on Friday afternoon in Japan. The nation's lawmakers felt the power of the magnitude 8.9 force. And the cameras rolled here in a Sendai newsroom about 90 miles from the quake. It set off this hug

SSS 2011-07-08

Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla

与美国小学生一起学英文第10册 第4期:波浪

Waves 波浪 A wave is the movement of water. 波浪是水的运动。 Why do waves happen? 波浪是怎么产生的呢？ Waves are made when the wind blows over the surface of water. 风吹水面就会产生波浪。 On the beach, you probably watc

VOA慢速英语2013 AS IT IS - The power of music…in Nigeria, Turkey and Pakistan

AS IT IS - The power of musicin Nigeria, Turkey and Pakistan Welcome to AS IT IS, from VOA Learning English. Im Christopher Cruise. Today, we report on the power of musicin Nigeria, Turkey and Pakistan. Ted Greenfield tells us about a band that is wo

VOA慢速英语2015 美国能源部发起能源奖竞争

US Agency Announces Wave Energy Prize Competition 美国能源部发起能源奖竞争 Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Ene

2016诺贝尔化学奖:世界上最小的机器

AS IT IS 2016-10-05 Nobel in Chemistry Goes to Makers of Worlds Smallest Machines 2016诺贝尔化学奖:世界上最小的机器 Three scientists have won the Nobel Prize in Chemistry for their work in developing tiny machines. The three men are Jea

VOA标准英语2012--Oak Ridge Boys Release 31st Album

Oak Ridge Boys Release 31st Album Country music is famous for its unique sounding music and no band in country music is more recognizable to country music fans than the Oak Ridge Boys. The current foursome continues a tradition dating back more than

VOA标准英语2009-Severe Heat Wave Grips Many Parts of India

A severe heat wave sweeping across the plains of India has claimed at least 100 lives. It has also led to power and water shortages in many parts of the country, including the capital, New Delhi. Dogs join daily wage laborers and rickshaw pullers as

VOA标准英语2014--Mad World: 80s New Wave Rock Acts in Their Own Words

Mad World: 80s New Wave Rock Acts in Their Own Words Music fans have already seen songs of the 1960s get their due and the sounds of the 1970s have been endlessly analyzed as well. But what about the 1980s? The authors of a new book are celebrating t

VOA标准英语2015--新型风力发电机避免误伤鸟类

Bladeless Wind-Power Generator is Friendly to Birds 新型风力发电机避免误伤鸟类 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of w

VOA标准英语2014--Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水

Harnessing Ocean Wave Power Provides Cheap Electricity 利用海洋波浪提供廉价电力和饮用水 WASHINGTON An often overlooked renewable energy resource is the power of ocean waves. Scientists in California say harnessing energy from the regu

绿箭侠第一季 第30期:兄弟会

Got ballistics back on the Holder murder. 霍尔德凶案的弹道分析出来了 They pulled two 7.62 millimeter bullets out of him. 他们取出了他身上两枚7.62毫米的子弹 According to the stippling and size of the entry wound, 根据伤口

英伦广角 2012-12-15 辣妹组合音乐剧再聚 维多利亚黑白装女王气场

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

双语有声阅读：细菌

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 bacter

2015年CRI 印度的热浪的死亡人数已超过1300

The death toll from the heat wave currently gripping India has surpassed 13-hundred, with temperatures soaring above 47 degrees in certain parts of the country. Southern India's Andhra Pradesh has recorded over a thousand deaths. From last one week,