This is the VOA Special English Health Report. Rice is an important part of many peoples diets. Researchers from the Harvard School of Public Health in Massachusetts have released a report about rice. It shows that eating white rice increases the ris

发表于:2018-12-07 / 阅读(52) / 评论(0) 分类 2010年VOA慢速英语(六)月

A new study warns of the potential problems Africa faces from rising temperatures. The Nairobi-based International Livestock Research Institute (ILRI) says the continent must learn to adapt to shorter growing seasons. The report was released as the U

发表于:2018-12-08 / 阅读(57) / 评论(0) 分类 VOA标准英语2010年(十一)月

African Food Security Varies by Region 非洲粮食安全问题因地区而异 A new report on Africas food security showed regional differences in progress. Western Africa led the continent in reducing the number of undernourished people since the e

发表于:2018-12-16 / 阅读(57) / 评论(0) 分类 VOA标准英语2015年(六月)

Hippos Called River Life Force 河马创造了河流生命力 A new study says the hippopotamus is very important to the health of Africas rivers and lakes. Thats because hippos produce a key ingredient for aquatic life -- and a lot of it. But resear

发表于:2018-12-16 / 阅读(56) / 评论(0) 分类 VOA标准英语2015年(四月)

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Adam Navis. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 It is a warm day in Afghanistan. Rah

发表于:2018-12-19 / 阅读(63) / 评论(0) 分类 环球英语 Spotlight

LESSON 157 THE NUCLEAR GENE: WHAT NOW? The Oak Ridge Laboratories were at one time the nucleus of the American nuclear program. Splitting the atom at that time was a novel idea: all you had to do was to get a mass of uranium nuclei together, and you

发表于:2018-12-30 / 阅读(64) / 评论(0) 分类 胡敏托福词汇记单词

Cemento-enamel junction- the junction between the enamel covering the crown of the tooth and the cementum covering its root. Often referred to as the CEJ. Cementoblasts - cells of mesenchyme origin, i

发表于:2019-01-03 / 阅读(52) / 评论(0) 分类 医务英语

Potomac Named Most Endangered River The Potomac River is seen by hundreds of thousands each day as it flows under bridges and past memorials. It is used for recreational activities, and provides drinking water for five million people. Before the Poto

发表于:2019-01-04 / 阅读(58) / 评论(0) 分类 VOA标准英语2012年(六月)

The US Environmental Protection Agency lists stormwater as the primary cause of water pollution in the United States. Roads, shopping centers and housing developments are generally seen as enhancing a community's quality of life. But they can also di

发表于:2019-01-07 / 阅读(64) / 评论(0) 分类 VOA标准英语2010年(八)月

By Zulima Palacio Washibgton, D.C. 19 April 2007 Watch Chesapeake Bay report The Chesapeake Bay has the longest coastline in the eastern United States -- nearly 19,000 kilometers long, stretching through and bordering six states. Thousands of rivers

发表于:2019-01-12 / 阅读(104) / 评论(0) 分类 2007年VOA标准英语(四月)

Almost all cells need iron to grow. Now, researchers have identified a link between the body's system for regulating iron and breast cancer. The discovery could help doctors predict the course of breast cancer disease and even help them decide the mo

发表于:2019-01-13 / 阅读(227) / 评论(0) 分类 VOA标准英语2010年(八)月

Species Loss Compromises Earths Vital Systems Scientists have long thought that diverse ecosystems like forests, lakes and streams are especially good at removing pollutants that human activities put into the environment. A new study in the journal N

发表于:2019-01-14 / 阅读(53) / 评论(0) 分类 VOA标准英语2011年(四月)

Climate Change May Overwhelm Farmers A new study says the pace and severity of climate change may overwhelm small-scale farmers in Africa. The study describes those farmers as the mainstay of food production on the continent. The findings were releas

发表于:2019-01-14 / 阅读(70) / 评论(0) 分类 VOA标准英语2014年(九月)

DAVID GREENE, HOST: The amount of carbon dioxide in the air is rising because of human activity. And NPR's Merrit Kennedy reports that scientists around the world are trying to understand how more CO2 is going to impact the plants we eat. MERRIT KENN

发表于:2019-01-17 / 阅读(57) / 评论(0) 分类 2018年NPR美国国家公共电台6月

What is mother for? M is for the million things she gave me. O menas only that she 's growing old. T is for the tears she shed to save me. H is for her heart of purest gold. E is for her eyes ,with the love-light shining. R means right ,and right sh

发表于:2019-01-17 / 阅读(80) / 评论(0) 分类 白领英语晨读

In the Rocky Mountains of Central Colorado, the forces of nature create a landscape of alpine lakes, high-altitude ponds teeming with life and mountain meadows bursting with wild flowers. It is amidst these beautiful wildflower fields that one scient

发表于:2019-01-22 / 阅读(133) / 评论(0) 分类 自然百科2008年

The pearl luggers then turned their attention to something else, a much bigger target. The reef has always provided a great haven for large animals, like turtles who nest on the coral piece. Whole populations of turtles were brought to the verge of e

发表于:2019-01-22 / 阅读(47) / 评论(0) 分类 自然百科2011年

By Carol Pearson Washington 31 October 2007 A group of nutritionists and doctors recommend that pregnant and breast feeding women eat at least three servings of fish and other seafood per week. The recommendations are the opposite of what the U.S. F

发表于:2019-01-31 / 阅读(74) / 评论(0) 分类 2007年VOA常速英语(十月)

Africa Kicks-up A Lot of Dust 非洲大陆的灰尘飘向美国 Bits and pieces of the African continent are falling on the United States and surrounding regions much of the year. Scientists say large amounts of African dust may be having major effec

发表于:2019-02-01 / 阅读(56) / 评论(0) 分类 VOA常速英语2013年(九月)

Agricultural runoff from fertilizers, chemicals and animal waste is responsible for about half the pollution in the Chesapeake Bay. The U.S. Enviromental Protection Agency is stepping up enforcement and working with the United States Department of Ag

发表于:2019-02-05 / 阅读(92) / 评论(0) 分类 VOA标准英语2009年(十二月)