单词：titcomb
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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
今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对，以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和
英语单词荟萃
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
UNIT 4 At Home 在家里 Lesson 29 Brush and Comb 毛刷和梳子 1.What is it?这是什么? brush 刷子 comb 梳子 soap 香皂 toothbrush 牙刷 2.Let's sing a song. This is the way we brush our hair, brush our hair,brush our hair. This is the way
冀教版小学英语(三起)--第二册
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
Glaucoma is the leading cause of irreversible loss of vision worldwide and now doctors believe the devastating disease begins in the brain and not in the eye as has long been thought. Dr. David Calkins, director of research at the Vanderbilt Eye Inst
VOA标准英语2010年(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
今天我们要学的词是multitasking。 Multitasking, 原本是计算机术语，指多重任务同时处理，现在已经被沿用到日常生活中，指同时干很多事情。现在的美国中学生，一边写作业，一边听音乐，还要
英语单词荟萃
Steve Holcomb almost lost his chance at Olympic success to congenital eye disease, but thanks to revolutionary operation he will compete in Vancouver. David Byrd | Washington 06 January 2010 Photo: Amanda Bird Steve Holcomb, bottom center, with bobsl
VOA标准英语2010年(一月)
今天我们要学的词是comb through。Comb through, 意思是仔细查找。龙卷风过后， Rescue workers combed through the rubble, searching for survivors, 救援人员在废墟中寻找幸存者。 Police combed through the house, looking
英语单词荟萃
By Sabina Castelfranco Palermo 05 October 2007 Security experts are gathered for a two-day meeting in Sicily organized by the Italian Atlantic Committee and the Atlantic Treaty Association, umbrella organizations working on security issues in NATO co
2007年VOA常速英语（十月）
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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