单词：titra(ta)ble alkalinity
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This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.
Scientific American(八)月
This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly
2010年VOA慢速英语(九)月
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北美小学生英语一年级教材（牛津英语教材）
World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r
英语课程学习计划和讲义
By Jim Malone Washington 06 February 2007 The war in Iraq looms as the major issue in the 2008 U.S. presidential race. The war is already causing splits among White House candidates in both major political parties. VOA national correspondent Jim Mal
2007年VOA标准英语（二月）
Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol
Scientific American(八)月
By Cathy Majtenyi Nairobi 23 April 2007 Two media watchdogs are condemning recent attacks against print and broadcast media organizations in Somalia's capital. Cathy Majtenyi reports for VOA from Nairobi they are calling for a full investigation by
2007年VOA标准英语（四月）
By Sabina Castelfranco Rome 22 January 2006 Italian Defense Minister Antonio Martino, second from left, reviewing the Italian Joint Task Force in Nasiriyah, southern Iraq, Sunday, Nov. 13, 2005 (file)
2006年VOA标准英语（一月）
By Suzanne Presto Irbil 17 June 2008 Iraqi government forces are preparing for the next phase of a planned crackdown on militants and outlaws in the capital of southeastern Iraq's Maysan province. VOA's Suzanne Presto reports from the northern city
VOA标准英语2008年（六月）
The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of
VOA标准英语2010年(一月)
The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say
VOA标准英语2010年(七)月
Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h
VOA标准英语2010年(五)月
At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com
VOA标准英语2010年(三月)
This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau
2010年慢速英语(三)月
Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But
英语小达人
72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0
科技之光
By Dan Robinson Capitol Hill 15 March 2007 The appropriations committee of the House of Representatives has voted [36 to 28] to approve Democratic-crafted legislation calling for the withdrawal of U.S. troops from Iraq no later than September of 200
2007年VOA标准英语（三月）
By Margaret Besheer Baghdad 16 April 2007 In the Iraqi capital, illegal Sunni and Shi'ite groups are trying to shift the sectarian balance of neighborhoods to their favor. They use intimidation and executions to force residents of different sects to
2007年VOA标准英语（四月）
Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We
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