英语听力：自然百科 探索世界奥秘之Wild Europe-Genesis (欧洲自然写真) Unit08

Wild Europe - Genesis 肇始之初- 8

They make perfect roof tiles, but these tiles occasionally reveal something extraordinary. Perfect snapshots from 115 million years ago, back then, Solnhofen was part of a very still and salty tropical lagoon¹. No scavengers could survive in these toxic² waters, but anything that died was left undisturbed.

One casualty in particular has made Solnhofen world famous--archaeopteryx. Although it had the head and pelvis of a reptile³, the long forelimbs suggest something altogether different. They're covered in feathers. This was part reptile, part bird. Archaeopteryx marks one of the major turning points in evolutionary⁴ history. From these beginnings, emerged the 9000 species of birds that fill the skies today.

The next great event that Europe experienced took place a hundred million years ago. The clues lie hidden in the famous chalk cliffs of Southern England. Chalk is composed of the shells and skeletons of ancient marine⁵ plankton⁶, microscopic⁷ creatures, trillions and trillions of them.

words and expressions

snapshot: (n.) A photograph taken with a small hand-held camera. 快照

lagoon: (n.) A shallow body of water, especially one separated from a sea by sandbars or coral reefs. 环礁湖

archaeopteryx: (n.) An extinct primitive⁸ bird (genus Archaeopteryx) of the Jurassic period, having lizardlike characteristics, such as teeth and a long, bony tail. It may represent a transitional form between reptiles⁹ and birds. 始祖鸟

pelvis: (n.) A basin-shaped structure of the vertebrate skeleton, composed of the innominate bones on the sides, the pubis in front, and the sacrum and coccyx behind, that rests on the lower limbs and supports the spinal co

1 lagoon   

n.泻湖，咸水湖

参考例句：

• The lagoon was pullulated with tropical fish.那个咸水湖聚满了热带鱼。
• This area isolates a restricted lagoon environment.将这一地区隔离起来使形成一个封闭的泻湖环境。

2 toxic   

adj.有毒的，因中毒引起的

参考例句：

• The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
• There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。

3 reptile   

n.爬行动物；两栖动物

参考例句：

• The frog is not a true reptile.青蛙并非真正的爬行动物。
• So you should not be surprised to see someone keep a reptile as a pet.所以，你不必惊奇有人养了一只爬行动物作为宠物。

4 evolutionary   

adj.进化的；演化的，演变的；[生]进化论的

参考例句：

• 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。

5 marine   

adj.海的；海生的；航海的；海事的；n.水兵

参考例句：

• Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
• When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。

6 plankton   

n.浮游生物

参考例句：

• Plankton is at the bottom of the marine food chain.浮游生物处于海洋食物链的最底层。
• The plankton in the sea feeds many kinds of animals. 海的浮游生物成为很多种动物的食物。

7 microscopic   

adj.微小的，细微的，极小的，显微的

参考例句：

• It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
• A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。

8 primitive   

adj.原始的；简单的；n.原(始)人，原始事物

参考例句：

• It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
• His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。

9 reptiles   

n.爬行动物，爬虫( reptile的名词复数 )

参考例句：

• 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》