这篇听力材料的内容是wave power——水波动力发电。文章本身并不难，但是如果没有听清第一句话，就会比较难理解后面的材料在讲什么。很多同学听完之后都会觉得这篇文章在讲sea creatures，但事实上这篇文章的重点是后面所说的harness wave power. 文章讲述了三种利用水波动力发电的设备，并且简单介绍了这三种设备的发电原理。

Sea creatures are inspiring the latest devices thatharness wave power. 海洋生物正在为驾驭水波动力的设备的发明激发灵感。This one called “the Oyster” sits on the ocean floor and opens and closes as waves pass over it. 这一个被叫做牡蛎，它坐落在海底，随着浪潮经过它而开合。Cables attach it to generators on the shore. 电缆将它和岸上的发电机连接在一起。Since November 2009, it’s been powering 9,000 homes in the Orkney Islands. 自从2009年十一月，它已经为奥克尼群岛的九千户居民供电了。Another device looks like a snake. 另外一个设备看起来像蛇。The Anaconda is made from a rubber tube filled with water that floats just below the surface. 这个大蟒蛇是由一个充满水的橡胶管组成的，它漂浮在谁的表面之下。When a swell hits the front of it, the tube is squeezed.当有波涛撞击它前面的时候，这个管道就会被挤压。A bulge ripples down its length and powers a turbine in its tail. 一个凸起的部分传过它的全身，并且为它尾部的涡轮提供动力。Prototypes are currently being tested but the full-scale version will be two hundredmeters long. 原型正在测试中，但是全尺寸版将会有两百米长。This system also looks like a snake but this one is made of steel. 这个系统看起来也想蛇一样，但是它是由金属组成的。It floats near the surface, where waves make it joints move. 它在漂浮在海面附近，浪潮使它的关节处移动。This drives hydraulic systems that power electrical generators. 这会驱动由水利发电的发电机。Like the Anaconda, it’s still being tested. 和大蟒蛇一样，它也仍在测试中。Results will prove if these devices are up to the job of supplying viable sources of green energy.结果将会证明这些设备是否能胜任为绿色能源提供可行的来源的工作。

就单词和语速来讲，这篇文章语速适中，没有生词难词。但是很多同学觉得听不懂或者听的不太好的原因是文章的题材比较新颖，如果第一次听可能会觉得完全不知道speaker再说什么。

生词

Harness 驾驭，利用

Made of / made from 由……制成

Drive 驱动、迫使  driver 驱动器、动因

Up to the job of 胜任……的工作

Turbine 涡轮

SST

 Sea creatures are inspiring latest devices to use wave power.“The oyster”on the floor has been used to power generators since 2009. The Anaconda is snake-like, and with a rubber tube filled with water it can power the turbine in its tail. Another snake-like device is made of steel and waves make its joints move to powers hydraulic generators. The last two are prototypes that are being tested.

RL

In this lecture, the speaker talks about power generators inspired by sea creatures.

In the beginning, he mentions that sea creatures are inspiring the latest devices to use wave power. One device looks like an oyster and has been used to power generators.

He then goes to talk that a snake-like device with a rubber tube filled with water, which can power the turbine in its tail.  Another snake-like device is made of steel and waves make its joints move to powers generators.

By way of conclusion, he said that the last two are prototypes, which are being tested.