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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.

发表于:2018-12-02 / 阅读(128) / 评论(0) 分类 Scientific American(八)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片

发表于:2018-12-12 / 阅读(150) / 评论(0) 分类 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

发表于:2018-12-29 / 阅读(97) / 评论(0) 分类 英语课程学习计划和讲义

By Mil Arcega Washington, DC 27 July 2006 watch Green Vehicle report The cost of gas at the pump keeps going up The high price of gasoline is changing the way we drive. And there are more concerns about the environment. Car manufacturers say those f

发表于:2019-01-06 / 阅读(159) / 评论(0) 分类 2006年VOA标准英语(七月)

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

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 Scientific American(八)月

Members of Japan's ruling party have overwhelmingly selected former Foreign Minister Taro Aso as their leader, virtually ensuring he will become the country's prime minister this week. Aso now faces a daunting task of spurring Japan's sluggish econo

发表于:2019-01-09 / 阅读(96) / 评论(0) 分类 VOA标准英语2008年(九月)

By Nico Colombant Port Harcourt, Nigeria 29 May 2007 Many Nigerians hope their new president, Umaru Yar'Adua, will urgently address the issue of gasoline scarcity after he is sworn in today. Even though Nigeria is Africa's biggest oil producer, mass

发表于:2019-01-13 / 阅读(148) / 评论(0) 分类 2007年VOA标准英语(五月)

By Joe Bavier Abidjan 24 May 2006 Activists in Burkina Faso are marking the 16th anniversary of their campaign to end the practice of female genital mutilation. Though progress has been made, many young girls still undergo the dangerous operation, w

发表于:2019-01-13 / 阅读(169) / 评论(0) 分类 2006年VOA标准英语(五月)

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

发表于:2019-01-13 / 阅读(167) / 评论(0) 分类 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

发表于:2019-01-13 / 阅读(143) / 评论(0) 分类 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

发表于:2019-01-13 / 阅读(112) / 评论(0) 分类 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

发表于:2019-01-13 / 阅读(141) / 评论(0) 分类 VOA标准英语2010年(三月)

By Margaret Besheer Irbil, Iraq 06 July 2006 It is an irony of Iraqi life, that the country with the world's second-largest proven oil reserves must import petroleum products, and has a thriving black market for gasoline. The high cost of gas is dri

发表于:2019-01-26 / 阅读(179) / 评论(0) 分类 2006年VOA标准英语(七月)

Residents of southern California are trying to get used to skyrocketing prices for gasoline. The average price for 87 octane economy gas is $2.22, almost 30 percent higher today than it was 12 months ago. The lowest gas price in the Southland right n

发表于:2019-01-27 / 阅读(109) / 评论(0) 分类 365个英语简短小故事

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

发表于:2019-01-28 / 阅读(124) / 评论(0) 分类 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

发表于:2019-01-30 / 阅读(150) / 评论(0) 分类 科技之光

By Nico Colombant Dakar 05 February 2007 High-level rebel and presidential delegations from divided Ivory Coast have started meetings in Burkina Faso in a renewed attempt to end more than four years of stalled negotiations. VOA's Nico Colombant repo

发表于:2019-02-04 / 阅读(157) / 评论(0) 分类 2007年VOA标准英语(二月)

By Nico Colombant and Zoumana Wonogo Abidjan and Ouagadougou 08 May 2006 Burkina Faso's ruling party has crushed other parties in elections for city and village councils, dashing the hopes of some opp

发表于:2019-02-04 / 阅读(190) / 评论(0) 分类 2006年VOA标准英语(五月)

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

发表于:2019-02-05 / 阅读(161) / 评论(0) 分类 实用英语

U.S. motorists have long had an infatuation with cars and the freedom to travel far and wide on the countrys open highways. But now drivers are getting squeezed by higher prices at the gas pumps. American gas prices are still low compared to those in

发表于:2019-02-17 / 阅读(114) / 评论(0) 分类 英语新闻
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adjustment of rolls
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purple sandpiper
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