雅思词汇真经 unit09

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Grafting

By Mario Ritter Broadcast: August 12, 2003 This is Bill White with the VOA Special English Agriculture Report. We often think of agriculture as planting seeds and harvesting crops. But many crops do n

VOA常速英语2014--亚洲细菌威胁到佛罗里达橘子树

Asian Bacteria Threatens Florida Orange Trees 亚洲细菌威胁到佛罗里达橘子树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of

新概念2词汇 67-69

Lesson 67 Volcanoes New words and expressions: 1. volcano Haroun Tazieff, the Polish scientist, has spent his lifetime studying active volcanoes and deep caves in all parts of the world. This is a dormant volcano. Pompeii disappeared after the volcan

VOA慢速英语 2007 0102a

This is the VOA Special English Agriculture Report. These days, if we hear about two different plants being combined, the first thing we think of might is modern biotechnology. But the low-technology process of grafting remains an extremely important

CNN 2010-04-21

A volcano in Iceland had been dormant for more than 180 years. But then a few weeks ago, this started. The volcano is erupting, and some scientists say it could last for more than a year. That's about how long it went the last time this happened，th

VOA慢速英语20060328a

AGRICULTURE REPORT - For Eating or Looking: Wild About CherriesBy Mario Ritter Broadcast: Tuesday, March 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. There is something ha

华盛顿故乡重造森林

55 华盛顿故乡重造森林 DATE=8-22-01 TITLE=SCIENCE REPORT - Cloning Mount Vernon's Trees BYLINE=George Grow （Start at 59' ）This is Bill White with the VOA Special English Science Report. Tr

SSS 2009-10-09

If the human genome were put in a straight line, it would be over six and a half feet long. So how do you store all that DNA in a tiny nucleus? And have the cell manage it? Researchers explain how in a study featured on the cover of the October 9th i

2006年VOA标准英语-US Troops Receive Treatment at Burn Center

By Greg Flakus San Antonio, Texas 13 January 2006 watch Burn Center report Advances in combat medicine have helped hundreds of badly wounded soldiers in Iraq survive, but many of them need long-term c

2006年VOA标准英语-Pentagon Survivors Talk About the 5-Year Annive

By Mil Arcega Washington, DC 08 September 2006 watch Pentagon Survivors report Americans will mark the anniversary of the September 11th, 2001 terrorist attacks in many ways. Some will attend church services. Others will take part in marches and mem

VOA慢速英语2010年-Agriculture Report - Why Grafting Stil

Grafting is a way to produce plants from pieces of existing plants instead of seeds. Branches or buds are cut from one plant and placed on a related kind of plant. The branch or bud that is grafted is called the scion. The plant that accepts the graf

Severe Drought, Wildfires Threaten Water Resources

Severe Drought, Wildfires Threaten Water Resources This is Valles Caldera. Actually, it's the giant mouth of a dormant super volcano that last erupted 40,000 years ago. In the millennia since then, the terrain developed high-elevation forests, of abu

VOA双语新闻：1、亚洲细菌威胁佛州橘树

亚洲细菌威胁佛州橘树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of transferring non-native species to American soil. 佛罗里达

AGRICULTURE REPORT - Who Needs Seeds? The Secret of Seedless

AGRICULTURE REPORT - Who Needs Seeds? The Secret of Seedless Fruits By Mario Ritter Broadcast: Tuesday, August 09, 2005 I'm Faith Lapidus with the VOA Special English Agriculture Report. We often thin

HEALTH REPORT - Fetal Skin Cells May Treat Burns

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

升职之前的10个必要准备

Albert Einstein once said, Insanity: doing the same thing over and over again and expecting different results.Now that the new year has come and gone and the season for goal-setting has come and gone too, lets take some time to track our progress. Th

NASA Announces Next Generation Spacecraft

NASA has unveiled plans for its next-generation, post-Shuttle spacecraft to carry humans into earth orbit and beyond. The state-of-the-art, four-astronaut capsule, called the Multi-Purpose Crew Vehicle or MPCV, builds on earlier designs for the Orion

学习,一生的事业

Learning:A Lifelong Career As food is to the body, so is learning to the mind. Our bodies grow and muscles develop with the intake of adequate nutritious food. Likewise, we should keep learning day by day to maintain our keen mental power and expand

Who Was Johnny Appleseed 苹果核约翰尼 Chapter 4 Johnny Takes Care of His Orchards

Johnnys orchards kept him busy year-round. Every fall, Pennsylvania farmers took their newly picked apples to the cider mills. So thats when seeds were plentiful. Johnny usually collected a couple of bushels of them from the mills. During the winter,