单词：physiologic dead space
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This is Scientific American 60-second Science,I'm Gretchen Cuda Kroen,got a minute?Sharing syringes is a big no-no.Despite the warnings,needles sharing among injection drug users are still a significant cause for the spread of HIV and other infectiou
Scientific American(一)月
1. cellophane /'seləfeɪn/ -- cellulose substance that shows through; transparent cellulose substance used as a wrapper When used as a wrapper, cellophane lets the purchaser see the contents of the package. 用玻璃纸包装使购买者能看到包内
突破英文词汇
Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or
英语名著名段背诵精华
Grammar Girl here. This week I have two topics for you: The number of spaces after a period at the end of a sentence, and whether you should use who or that to refer to people (and pets). Now here's our first listener question. His friends believe it
英语语法 Grammar Girl
By Cindy Saine Washington 01 July 2006 In this image made from NASA TV, German Astronaut Thomas Reiter exits the Space Shuttle Discovery at the Kennedy Space Center in Cape Canaveral The space shuttle Discovery was set to lift off (at 1949 UTC) Satu
2006年VOA标准英语（七月）
By VOA News 12 February 2008 Astronauts from the space shuttle Atlantis are formally opening the new laboratory at the International Space Station Tuesday. Crew members set up electrical and data lines linking the new Columbus laboratory to the stati
VOA常速英语2008年（二月）
By Kent Klein Washington 03 June 2008 Astronauts at the International Space Station have attached a $1 billion Japanese laboratory to the orbiting outpost. During a space walk Tuesday, mission specialists Michael Fossum and Ronald Garan unlocked the
VOA标准英语2008年（六月）
AS IT IS 2013-06-03 Kenyan President Linked to 2007-2008 Violence Hello, and welcome once again to As It Is, VOAs daily magazine show for people learning American English. Im Christopher Cruise. Today, we tell about a reported link between human righ
2013年VOA慢速英语(六)月
By Brian Wagner Miami 27 March 2008 The Endeavour has landed, after completing the longest space shuttle mission to the International Space Station. VOA's Brian Wagner has this report. The seven-member crew of Endeavour returned to Earth more than tw
VOA标准英语2008年（三月）
Despite Paralysis, Hawking's Mind Soars When he turned 70 in 2012, Hawking was honored with a special exhibit at Londons Science Museum. The tribute gave visitors an inside look at the life and work of one of the world's greatest minds. We have some
VOA标准英语2013年(一月)
文本： -Well, we can improve on that. He must come here. He can send the horses up early if he wants. -He'll know why you're asking him. -I can't think what you mean. His mother's a friend of mine; she'll be pleased at the idea. -Not very pleased.
跟着英剧练发音
By Robert Raffaele Washington, DC 05 July 2006 watch Discovery Liftoff report Shuttle Discovery launch NASA successfully launched the space shuttle Discovery Tuesday, after two previous launches were scrubbed due to bad weather in the southeastern U
2006年VOA标准英语（七月）
By Benjamin Sand Islamabad 12 May 2007 At least 27 people have been killed in clashes between pro- and anti-government activists in Pakistan's largest city, Karachi. VOA correspondent Benjamin Sand reports from Islamabad the widespread violence repre
2007年VOA标准英语（五月）
Fourscore and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal(2) Now we are engaged in a great civil war, testing whether that nation, or
英语背诵文选第一册
By Kurt Achin Seoul 13 December 2007 North and South Korean generals scuffled briefly on the second day of high-level military talks at the two countries' border. Tension at the talks is fueled by a decades-old dispute over an international demarcati
VOA常速英语2007年（十二月）
Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf
英语新闻
9 Clutter Clearing Tips for Good Feng Shui Clutter clearing in the bedroom can have health benefits. We all know that clutter clearing ALWAYS improves the feel of a space. But, many people ask me, Where should I start? Following are 9 tips to help yo
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1. Secretary of State John Kerry says major world powers have agreed on what sort on nuclear deal to offer Iran. That nation refused to accept it during talks in Geneva. 2. Officials in the Philippine say the number of dead in Fridays Typhoon can rea
美联社新闻一分钟2013(十一月)
Mommy, my turtle is dead, the little boy, Myrddin, sorrowfully told his mother, holding the turtle out to her in his hand. The mother kissed him on the head, then said, That's all right. We'll wrap him in tissue paper, put him in a little box, then h
趣味英语
Mr. Rabbit was a very bad little beast; he was always doing things that made other persons angry and they wanted to catch him. But it was very hard to catch Mr. Rabbit. One day Mr. Wolf said to Mr. Fox, We will catch Mr. Rabbit and eat him tonight. Y
趣味英语