单词：natural frenquence vibration test
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Todays topic is whether its OK to switch verb tenses in conditional sentences. It all started with a grammar question about was and were. On the Grammar Girl Facebook page, Veronica wanted to know whether she should write If the test was readminister
跟谢孟媛学语法
图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh
数学英语
Study: Ocean Acidity Exceeds Natural Norms New research suggests an overload of carbon dioxide in the oceans is posing a serious threat to marine life, food security and tourism. While most CO2 emissions from automobiles, buildings and factories go i
VOA标准英语2012年(一月)
Speech by Commissioner of Coustoms and Excise at 2009 International Customs Day 香港海关关长在2009年国际海关节致辞 The Honourable Financial Secretary, distinguished guests, ladies and gentlemen, 财政司司长、各位来宾、各位朋
历史英雄名人演讲
在这个节目中我们将学到： 经典语境背诵 Mom: I dont like staying in Beijing during any vacations. I prefer to go to some new places like Guilin for the beautiful scenery . Though itould be a long trip, it would be more fun too. But Im
英语大赢家上册
Grammar Girl here. Today's topic is how to use the word however in a sentence. It's probably more complicated than you think it is. The question I get asked most frequently about however is whether it is OK to use however at the beginning of a senten
英语语法 Grammar Girl
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Faith Lapidus. VOICE TWO: And I'm Bob Doughty. Our subject this week is sports doping. (MUSIC) VOICE ONE: Sports have long been part of popular culture. In the United States, some pl
VOA慢速英语2009年（二）月
Iran is hosting a international conference on its natural gas exports Saturday and Sunday in Tehran. Organizers say the meeting is aimed at developing Iran's rich natural gas sector. Iran is under international sanctions over its nuclear program and
VOA标准英语2008年（十月）
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid
Scientific American(一)月
考试日期： 2012.12.15 类别 Line chart 题目 The line graph shows the production level of 3 types of fuels, including petroleum, coal and natural gas in the UK between 1981 and 2000. Summarize the information by selecting and reporting the mai
雅思机经
A person, like a commodity, needs packaging. But going too far is absolutely undesirable. A little exaggeration, however, does no harm when it shows the person's unique qualities to their advantage. To display personal charm in a casual and natural w
英语阅读理解
(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his
英语杂谈
Education Report - A Living Science Exhibit Grows at a Museum This is the VOA Special English Education Report. Outdoors, in the open air, seems like a natural place to study natural science. It also makes sense in a place like Southern California wh
2012年VOA慢速英语(六)月
By Lisa Schlein Geneva 15 June 2006 Boy with open wound on his forehead waits to be attended to by doctors in Balakot The United Nations is launching a global campaign to protect children from dying and being injured in natural disasters. The U.N. D
2006年VOA标准英语（六月）
U.S. and European researchers say the leading test used to screen for prostate cancer may do more harm than good. The new studies are re-igniting debate over the aggressive treatments associated with prostate cancer. For 20 years doctors have used t
VOA标准英语2009年(三月)
By Kurt Achin Seoul 14 October 2006 U.N. Security Council (file photo) The United States has told its Asian allies that traces of radiation have been detected that may confirm North Korea's announcement of a nuclear test. Word of the still inconclus
2006年VOA标准英语（十月）
A person, like a commodity, needs packaging. But going too far is absolutely undesirable. A little exaggeration, however, does no harm when it shows the person's unique qualities to their advantage. To display personal charm in a casual and natural w
阅读空间
If your dog destroys the furniture when you are away, it could be a pessimist( 悲观主义者), researchers have concluded. A study has found that some dogs are natural gloom-mongers while others have sunnier dispositions. We know that people's emot
英语新闻
The small Southeast Asian nation Laos has for the first time held the Southeast Asian Games, gaining prestige and an economic boost. The landlocked nation's growth is dependent on exporting natural resources but Laos increasingly looks to tourism to
VOA标准英语2010年(一月)
U.S. envoy Glyn Davies is calling on North Korea not to carry out a nuclear test. The call comes immediately following North Korea's vow to carry out as well as aim the tests at the US. Whether they will test it or not, we hope they don't, we call on
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