标签：Ecosystem 相关文章
Care for Our Mother Earth (Dr. McKinley of Awareness Magazine interviews a group of experts on environmental issues.) Dr. McKinley: What do you think is the biggest threat to the environment today? Am
大学体验英语综合教程
Robotic Marine Vehicles Explore Celtic Sea 机器人海洋车探索凯尔特海 Scientists in England are using two autonomous marine vehicles to explore the hydrology and biology of the Celtic Sea, an area off Ireland's southern coast defined by its
VOA标准英语2015年(十月)
As the water is warm and tides grow high, horseshoe crabs leave the ocean floor and make their way to the shores and estuaries of the Atlantic Coast. Here in the sheltered waters of South Carolina, they suddenly emerge by the thousands in the spawnin
自然百科2009年
Something strange is happening in the forests around Chernobyl. More precisely, it is what is not happening that is the problem. When leaves fall and trees die there, they are not decomposing properly. Scientists visiting the dead forests noticed tha
轻松英文阅读
The thing about extinction events is that, of course they're very bad for the animals that go extinct, but they open up a door of opportunity for a lot of other animals and plants. 其实就灭绝事件来说，当然对走向灭绝的动物来说很糟
侏罗纪搏击俱乐部
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 scien
国家地理2008年
Bestselling Book Challenges Long-held Theories about Life in America before Columbus 畅销书展现哥伦布发现美洲之前美洲人的生活 Americans celebrate Columbus Day on October 10, commem
VOA2005（下）--文化教育动态
Coyotes are wild animals that began moving into metropolitan areas about two decades ago. America's Wild West was known for the phantom howls of coyotes, which were often heard but seldom seen. However, in the past 20 years, these desert dogs, indige
VOA标准英语2010年(九)月
Indias smartphone makers are seeking government action after a dramatic loss of market share to deep-pocketed Chinese rivals, who have been taking the countrys mobile market by storm with aggressive pricing and marketing campaigns. 在被财大气粗的
英语新闻
STEVE EMBER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus. This week, we tell about Everglades National Park in the American state of Florida. (MUSIC) STEVE EMBER: When many people think of
2010年VOA慢速英语(九)月
AS IT IS 2015-08-08 Beirut Residents Fight for Dalieh Coastline 贝鲁特居民争取Dalieh海岸线 Beiruts waterfront area of Dalieh is one of the few public stretches of coastline in Lebanon. But that could soon change. This past May, developers c
2015年VOA慢速英语(八)月
AS IT IS 2015-05-03 Hippos: The Life Force of African Rivers 河马:非洲河流的生命力量 The hippopotamus is an animal very important to the health of Africa's rivers and lakes. Their dung, or solid waste, helps Africas aquatic ecosystem. But
2015年VOA慢速英语(五)月
Desert Diversity at Joshua Tree National Park 约书亚树国家公园：沙漠的多样性 This week on our national parks journey, we explore a unique place where two deserts meet. The hot, harsh, rocky landscape is home to a rare and strange-looki
2016年VOA慢速英语(七)月
Denali: The Alaskan Wild 阿拉斯加国家公园：海拔6190米的德纳里峰 This week on our national parks journey, we travel to the largest state in terms of land area: Alaska. Alaska is home to more national parks than any other state. It is
2016年VOA慢速英语(九)月
U.S has acknowledged that IS militants??recent capture of the city??of Ramadi in Iraq and Palmyra in Syria??represent??a setback??,but President Obama said US and its allies were not losing the war. The BBC North America? ?editor John solo says the a
英语听力精选进阶版
Old Trees Are Ecosystem Gold Well, lots of people recognize that as humans get older they tend to have less and less children...trees do it the other way around.David Lindenmayer. He studies conservation, landscape ecology and biodiversity at the Aus
2018年科学美国人2月
That might lead to a different kind of dystopia (also with historical antecedents): one in which fast, functional transport is available only to those who can pay. 这可能会去往一个不同的非理想之地（也有历史先例）：在那里，快
经济学人财经系列
According to a document released at the conference by China's Ministry of Environmental Protection, the country has established over 2700 nature reserves covering a combined area of nearly 1.5 million square kilometers. That accounts for about 15 per
2016CRI中国国际广播电台
台湾籍旅美老师今天交给我们的句子是： By warming up the planet, we are, among many other things, breaking up the team that built the ocean's most diverse ecosystem. But bleached corals don't necessarily die. What happens next depends
留美老师带你每日说英文
Todd: OK, Jose, you just said you went to the Galapagos Islands. Jose: Yes Todd: Can you talk about the Galapagos? Jose: Yes, the Galapagos, as everybody knows is such a unique place and I went there and by chance I was in the same tour like with Pre
英语趣味课堂