地球再变暖或使蜥蜴进化成恐龙
英语课
Global warming 300 million years ago triggered the evolutionary 1 burst which caused lizards 2 to evolve into dinosaurs 3, scientists revealed today. The new research is focused on the Carboniferous Period, when the supercontinent of Pangea was covered in tropical rainforests ruled by reptiles 4. Scientists now believe that the Earth became significantly hotter during this age - turning rainforests into 'islands' surrounded by arid 5 deserts. This climatic change caused lizards to adapt to live in drier conditions and led to the evolution of different varieties of dinosaurs。
这是一个信息大爆炸的时代，也是一个生活大爆炸的时代，但谁也没想过，早已远去的时代未来会在亿万年后又重新回归。 伦敦大学的科学家通过研究发现，30亿年前的一波全球变暖让当时的蜥蜴进化成了恐龙，这一推断让人不禁想到30亿年后的今天，全球气候变暖重演，蜥蜴是否会再次进化成恐龙。 在30亿年前的石炭纪时代，大陆被热带雨林覆盖，并由爬行动物所统治。科学家分析，若变暖趋势加剧，蜥蜴会调整自身以适应干燥气候，再次进化成不同种类的恐龙。
Dr Howard Falcon-Lang of Royal Holloway, University of London, who carried out the research, revealed this global warming indirectly 6 caused the evolution of mammals. He said: 'We now know that this climate change caused the rainforests to fragment into small 'islands' of forest. 'This change isolated 7 populations of reptiles and caused each community to evolve in a different direction leading to an increase in diversity。
伦敦大学皇家霍洛威学院的科学家指出，全球变暖将首先作用于哺乳类动物，推进它们的进化。博士Dr Howard Falcon-Lang说：“我们了解到气候变暖加剧后，会使得大片的热带雨林分裂，而群居的蜥蜴一旦被强行分开就会成为一个个小群体，随之，每个群体之间开始向不同方向进化，最终差异促进进化成功。而蜥蜴进化的最终结果有可能成为恐龙。”
'We have discovered for the first time how this evolution occurred after analysing hundreds of fossils from around the globe. 'This initial burst of global warming significantly affected 8 the evolution of the world and led reptiles to evolve into dinosaurs, birds and mammals.'
据悉，科学家大胆推断出这一结论是通过搜集病研究全球各地的化石而得到的，他们认定，第一波的全球变暖的确影响了生物的进化过程。
Vocabulary：
Pangea n. 盘古大陆；泛大陆；联合古陆
mammal n. 哺乳动物
adj.进化的；演化的，演变的；[生]进化论的
- Life has its own evolutionary process.生命有其自身的进化过程。
- These are fascinating questions to be resolved by the evolutionary studies of plants.这些十分吸引人的问题将在研究植物进化过程中得以解决。
n.蜥蜴( lizard的名词复数 )
- Nothing lives in Pompeii except crickets and beetles and lizards. 在庞培城里除了蟋蟀、甲壳虫和蜥蜴外，没有别的生物。 来自辞典例句
- Can lizards reproduce their tails? 蜥蜴的尾巴断了以后能再生吗？ 来自辞典例句
n.恐龙( dinosaur的名词复数 )；守旧落伍的人，过时落后的东西
- The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
- Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
n.爬行动物，爬虫( reptile的名词复数 )
- Snakes and crocodiles are both reptiles. 蛇和鳄鱼都是爬行动物。 来自《简明英汉词典》
- Birds, reptiles and insects come from eggs. 鸟类、爬虫及昆虫是卵生的。 来自《现代汉英综合大词典》
adj.干旱的；(土地)贫瘠的
- These trees will shield off arid winds and protect the fields.这些树能挡住旱风,保护农田。
- There are serious problems of land degradation in some arid zones.在一些干旱地带存在严重的土地退化问题。
adv.间接地，不直接了当地
- I heard the news indirectly.这消息我是间接听来的。
- They were approached indirectly through an intermediary.通过一位中间人，他们进行了间接接触。
adj.与世隔绝的
- His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
- Patients with the disease should be isolated. 这种病的患者应予以隔离。
标签：
地球