标签:ecosystem 相关文章
federal reserve chairman XX is defending fed's bound-buying program aimed at keeping the interest rates low and boosting the economy. but house republicans are skeptical. XX reports XX was testifying before the house financial committee today. chairm
It's an island known for its rich cultural history and environmental treasures but human activities such as tourism and deforestation threaten some of Cubas key habitats, which is why the World Wildlife Funds Julia Langer collaborates with local part
Todd: OK, Jose, you just said you went to the Galapagos Islands. Jose: YesTodd: 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 Pres
Alligator gar are the second largest freshwater fish in North America. Later it disappeared from the state's waterways in the 1990s. 鳄雀鳝是北美第二大淡水鱼。后来,也就是20世纪90年代的时候,水域中就再没发现过这种鱼
新东方4+1 听力 口语MP3-语音语调 Unit16 Part One 听辨练习 A. 词辨音 Listen, circle the corresponding number if you hear/?? /i/ in the word . 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 B. 短语辨音 Write down the words you hear on the tape, then
Small Organisms in Deep Sea Rocks Eat Methane 深海岩中的微生物吃甲烷 The gas methane has been linked to rising temperatures on Earth. But methane does not stay in the atmosphere as long as another greenhouse gas -- carbon dioxide. Scientis
Kyoto Protocol Takes Effect The Kyoto Protocol on global warming has come into effect after years of delays. But the landmark agreement to reduce greenhouse gas emissions lacks the support of the Unit
1. coral,珊瑚。 eg:The women have elaborate necklaces of turquoise and pink coral. 女士们拥有绿宝石和粉色珊瑚制成的精美项链。 2. reef,礁,暗礁。 coral reef,珊瑚礁。 Great Barrier Reef,(澳大利亚)大堡礁。 eg:Bey
Topic1-The collapse of the Tibetan mastiff bubble Tibetan mastiffs used to be a coveted breed of canine in China. As a Tibetan mastiff puppy fetched a record-breaking price in what may be in world's most expensive dog sale for close to 12 million Yua
人类的发展也伴随着对环境的破坏,保护好环境迫在眉睫..... Chris: Hello and welcome to 6 Minute English from BBC Learning English, the programme where we discuss a topical subject and introduce you to some of the interesting voc
Over 1800 developers contributed Drupal modules (third-party extensions that can be added to the core) for Drupal 5. Drupal has grown a lot bigger than me. 超过1800个开发者为 Drupal5写模块(可以被加进核心的第 三方扩展名),
egalodon, 50 tons of pure menace in the body of a monster shark, dwarfing today's Great White. 巨齿鲨,体重达五十吨,这怪兽般的鲨鱼无比凶残,让现在的大白鲨相形见绌。 Step by step, science expands the evidence to sho
AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: more of our interview with Rob Jackson, director of the Global Change Center at Duke University with some terms you're likely to hear in the climate change debate. RS: We start wi
The small town of Cuatro Cienegas in northern Mexico is an oasis (绿洲) in the Chihuahuan desert. It s a valley that holds an example of what some believe is the one of the first human footprints in the Americas(美洲大陆以及附近岛屿)
Amazon is taking legal action against more than 1,000 people it says have posted fake reviews on its website. 亚马逊将对超过1000个据称在其网站上发布虚假评论的人采取法律行动。 The US online retail giant has filed a lawsui
Recent decades have likely been the warmest and wettest on record in the Tibetan Plateau, known as the 'Third Pole' for its ice fields. The Tibetan Plateau and surrounding mountains represent one of the largest ice masses on earth. But the glaciers a
Science and technology 科学技术 Radiation and evolution 核辐射与进化 Surviving fallout 辐射尘中 幸免于难 Birds can evolve to cope with the lingering effects of nuclear incidents 鸟类能够通过进化应对核事故的残余影响
But about 3.5 billion years ago something more emphatic became apparent. 但是,大约在35亿年前,更加坚强的东西变得显而易见。 Wherever the seas were shallow, visible structures began to appear. 只要哪里的海水很浅,可见
Biologists, according to the New York Times, 据《纽约时报》说:生物学家们估计, estimate that 90 percent of lobsters are caught within a year after they reach the legal minimum size at about age six. 大龙虾大约在6岁达到法定的
台湾籍旅美老师今天交给我们的句子是: Of course, this has detrimental effects on the whole ecosystem of the Arctic ocean while also causing physical trauma and habitat relocation in whales. In terms of sea levels, melting sea ice won