单词:species biomass
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[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:05.82]2006 Text3 [00:08.14]When prehistoric man arrived in new parts of the world, [00:12.17]something strange happened to the large animals: [00:15.51]they suddenly became extinct. [00:18.03]
When you consider all life on Earth, billions of human beings are a relatively small number when compared to trees, earthworms or even viruses. But humans really know how to use what little power we have, a new study found. The study is said to be th
Five species of shark have been put on a wildlife protection list. The move has been made at the final meeting of the Convention on International Trade in Endangered Species in Bangkok, Thailand. The decision restricts cross-border trade in the ocean
This is Scientific American's 60-Second Science. Im Karen Hopkin. Itll just take a minute. When you think about an ecosystem, you usually think of the big animals that live there. The Serengetis ruled by lions. And estuaries are populated by fishes,
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. Its been known to cause respiratory diseases and even
15. What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing. 【分析】复合句。本句中 what 引导主语从句,其中 such as Ransom Myers and Boris Worm 表列举,is 是系动词。 【译文】
Scientists Measure Ocean Health by Its Color 科学家根据海洋的颜色测量其健康度 You wouldn't order phytoplankton from a menu, but these microscopic green algae are an important food. The
意大利推出先进的生物燃料工厂 by Marzia De Giuli CRESCENTINO, Italy, Oct. 9 (Xinhua) -- An advanced plant for the production of second generation biofuels from plants not suitable for food consumption was inaugurated in northern Italy on
DEVELOPMENT REPORT - Seeing More Forest for the Trees: A Brighter Future for World's Forests?By Caty Weaver Broadcast: Monday, December 11, 2006 This is the VOA Special English Development Report. A r
This is the VOA Special English Economics Report. A US fuel pump for 85 percent ethanol, 15 percent gasoline What happens when a food crop becomes a fuel crop? This is a question many people are trying to answer as demand for ethanol increases. The
By Lisa Schlein Geneva 12 September 2007 A new report says the number of species threatened with extinction is escalating. The World Conservation Union, which has just released its Red List of Threatened Species, warns life on Earth will continue to
New technologies aid in conservation efforts at the National Zoo Susan Logue Koster | Front Royal, Virginia 19 July 2010 The National Zoo opened a cheetah science facility in 2007 at its conservation center in Front Royal, VA. Cheetahs are considered
New Species Might be Human Ancestor Fossils found in a South African cave might belong to a new species of early humans that holds a unique place on the evolutionary road to modern man. On a 2008 mapping expedition in Malapa, South Africa, American p
Fighting Fire with Fire In African savannahs, or grasslands, wildfires can either be destructive or beneficial. It all depends on when those fires occur. Scientists at the World Agroforestry Center have developed a system to determine the best time t
Illinois Biomass Recycling Center Aims to be First of its Kind Outside rural Goodfield, Illinois is a pile of wood that weighs 4.5 million kilograms. Some people call it garbage, but for Paul Wever, it's something else. I look at this as oil barrels
15. What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing. 【分析】复合句。本句中what引导主语从句,其中such as Ransom Myers and Boris Worm 表列举;is是系动词,how引辱的从句
When we lose reefs, we lose basically the cradles of evolution in the oceans. Wolfgang Kiessling A new study out this week highlights the role that coral reefs play in evolution, adding another reason to preserve these delicate, diverse, and often be
JINAN, May 14 (Xinhua) -- Chinese scientists said Saturday that they have found a new species of giant theropod dinosaur in the eastern province of Shandong. The new species, described as a close relative of Tyrannosaurus rex (T. rex), has been named
Researchers working for the World Wildlife Fund have warned that the effects of climate change pose a serious threat to rare species of wildlife discovered within the past year in Southeast Asia, including a fanged frog and a leopard-striped gecko. A
CANBERRA, March 23 (Xinhua) -- Up to 45 native species in Western Australia's Kimberley region will die out within 20 years if no action is taken, latest study showed on Wednesday. The Priority Threat Management to Protect Kimberley Wildlife report,