美国国家公共电台 NPR NASA Probe Lands Safely On Martian Surface

MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio

美国有线新闻 CNN 2014-03-23

There are many theories about what happened to the missing Malaysia Airlines plane but confirmed information is hard to come by. We\'ll tell you what we know today on CNN Student News. \It\'s been 13 days since the flight with 239 people aboard vanis

NSA Surveillance Program to Continue

The US House of Representatives has narrowly voted to continue collecting data on US phone calls. Lawmakers rejected the amendment that would have blocked funding for the National Security Agency's program, which gathers details of every call made by

2006年VOA标准英语-New US Mars Mission to Get Better Look at

By David McAlary Washington 06 March 2006 The newest American mission to Mars is hurtling toward the red planet, due Friday to examine it in the sharpest detail yet. It will be the largest spacecraft

2006年VOA标准英语-Biggest, Most Sensitive US Mars Spacecraft

By David McAlary Washington 10 March 2006 Mars Reconnaissance Orbiter Another U.S. spacecraft has begun orbiting Mars to study the red planet in unprecedented detail. The Mars Reconnaissance Orbiter w

高频词汇：beneath＆beside用法详解

beneath 在美国当代英语语料库统计的20000个常用词中，beneath作为动词的用法排在第1991位， 词义解析： 介词：在下方;到下方 John hid himself beneath the bed. 约翰藏在床底下。 be beneath sb 对来说不够好

VOA慢速英语2014 科学家绘制新的海底地图

Scientists Create New Maps of Ocean Floor 科学家绘制新的海底地图 Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientist

VOA标准英语2014--欧洲航天局探测器登录彗星

ESA Spacecraft to Land on a Comet 欧洲航天局探测器登录彗星 After a long flight through deep space, a European Space Agency probe is finally approaching its target - a comet millions of kilometers away from earth. Scientists say the missio

VOA标准英语2014--Scientists Look to Space to Map Ocean Floor

In Africa, New Technologies Help Teach Women to Read 在非洲，新技术帮助教女人阅读 More Africans are communicating via text, social media and email. In Senegal, literacy experts are using the new technologies to motivate and teach women

VOA标准英语2013--Boston Bombing Sparks Surveillance Camera Debate

Boston Bombing Sparks Surveillance Camera Debate The FBI released color surveillance camera footage of the Boston bombing suspects three days after the attacks took place. The video shows two men walking with rucksacks moments before the explosions.

2016年CRI China's 1st Mars mission aims at three goals

China's first Mars voyager mission is expected to be launched around 2020 and reach the Red Planet a year or so later. The computer generated images unveiled by the Chinese State Administration of Science, Technology and Industry for National Defense

PBS高端访谈:科学家根据阿拉斯加冰雪层的状况监测气候变化

GWEN IFILL: Finally tonight: how climate change may be affecting life in Alaska as we know it and the captivating images we see there, from ice to Marine life. NewsHour science correspondent Miles O'Brien went there to see for himself. MILES O'BRIEN:

英语听力：自然百科 金星和水星旅行指南 Venus and Mercury-9

And its here in a freezer that Messenger will encounter another puzzle: can ice exist on a planet so close to the sun? It's only when the first radar observations to the surface of Mercury were obtained back in the 90s that it was discovered that Mer

2007年VOA标准英语-Bush Urges Action on Terrorist Surveillance Leg

By Paula Wolfson Washington 01 August 2007 President Bush is urging the U.S. Congress to move quickly to rewrite rules for terrorist surveillance. VOA's Paula Wolfson reports the White House wants to see action before lawmakers adjourn later this wee

NE China to set up two drone bases for marine surveillance

NE China to set up two drone bases for marine surveillance SHENYANG, Oct. 20 (Xinhua) -- Two drone bases will be established in northeast China's Liaoning Province for real time surveillance on coastal waters, local authorities said Saturday. One of

2016年CRI Shanghai Set to Use Drone for Firefighting

The 1.5-kilogram drones, made of carbon fiber, are equipped with an infrared cameras, allowing them to see in the dark. They will also be fitted with radar systems and communications antenna to extend monitoring capabilities. But the truly outstandin

CCTV9英语新闻：China releases record, slamming US surveillance of China, world

Chinas State Internet Information Office has just published an Americas Global Surveillance Record, a few days after the governments announcement that it would increase security checks for computer hardware and services. The Record is drafted by the

U.S. to deploy powerful surveillance system in Afghanistan

WASHINGTON, Jan. 2 (Xinhua) -- The U.S. military is set to deploy a powerful surveillance system in Afghanistan(阿富汗) this winter that wires wide angle aerial images directly to combat troops（部队）, media reports said Sunday. The Washingto

万物简史 第368期:进入对流层(9)

Jet streams, usually located about 30,000 to 35,000 feet up, can bowl along at up to 180 miles an hour and vastly influence weather systems over whole continents, yet their existence wasn't suspected until pilots began to fly into them during the Sec

万物简史 第350期:孤独的行星(15)

Its surface temperature is a roasting 470 degrees centigrade (roughly 900 degrees Fahrenheit), which is hot enough to melt lead, 它的表面温度高达470摄氏度，连铅都会熔化。 and the atmospheric pressure at the surface is ninety times