2-14-A Passage 1: To start with, rainwater is collected in a large 3,000 gallon tank on the highest point of land on the island. The tank is so large that it measures about 12 feet in diameter. Once the tank is filled with rainwater, fish are added t

发表于:2018-12-04 / 阅读(85) / 评论(0) 分类 全新版大学英语听说教程第二册

Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea and land animals near the tip of the Antarct

发表于:2018-12-05 / 阅读(93) / 评论(0) 分类 国家地理2008年

Researchers have made some interesting discoveries near Antarctica. A team of scientists from the British Antarctic Survey and University of Hamburg have published the first comprehensive inventory of sea and land animals near the tip of the Antarcti

发表于:2018-12-26 / 阅读(43) / 评论(0) 分类 自然百科2008年

Traditional Farm Practices Hold Promise for Philippines' Sick Rivers CORDILLERA, PHILIPPINES An estimated 80 percent of Asias rivers are considered sick, meaning they suffer from pollution and the uncoordinated development of water resources. As cons

发表于:2019-01-03 / 阅读(45) / 评论(0) 分类 VOA常速英语2013年(九月)

Trees Stand Tall Against Climate Change The next U.N. Climate Change Conference gets underway November 26 in Doha, Qatar. Once again, negotiators will try to reach a broad agreement on dealing with rising global temperatures. Deforestation is expecte

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2012年(十一月)

By Lisa Bryant Paris 28 October 2009 Map of Madagascar European and African scientists are embarking on two major expeditions to take stock of the biodiversity in little known areas of Mozambique and Madagascar. The projects focus on areas considere

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2009年(十月)

Scientists: Save More Than Forests 科学家:拯救全球气候 不只是保护森林 Protecting the worlds forests is promoted as a way of reducing greenhouse gas emissions. Forests store a lot of carbon in both trees and soil, which helps mitigate

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2014年(十一月)

Pioneering Soil Researcher Wins Top Environment Prize Biologist Diana Wall went to the ends of the earth - the seemingly lifeless Antarctic desert - to study the life in soil. What soil life does for us, it provides us with many benefits that we don'

发表于:2019-01-14 / 阅读(60) / 评论(0) 分类 VOA标准英语2013年(四月)

Cyber -diversity 网络多样性 I'm so tired of hack ers . That's what happens when you have bunch of computers runing the same software. Because they share the same flaw s , if you can hack into one, you can hack into them all. That appens in natur

发表于:2019-01-26 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

Voice 1 Hello. Im Marina Santee. Voice 2 And Im Ruby Jones. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Welcome to our list

发表于:2019-02-21 / 阅读(63) / 评论(0) 分类 环球英语 Spotlight