英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—15

 Today, the elements that support the reef are in fine balance--sun, wind and waves. But it doesn't take much to tip the balance, plummeting¹ this huge reef into disaster. It might happen sonner than you think.

 

Eighteen million years ago, a series of remarkable² events conspired³ to creat the great barrier reef--the migration⁴ of a continent, the might of an ocean, and the full power of the tropical sun. The result is a world that is as tough as it is beautiful. It's been through numerous catastrophies, and everytime, it's balanced back. But the Great Barrier Reef now faces its biggest challenge--us.

 

It all began just a hundred years ago, in the reigns⁵ equivanlent to the Klondike Gold Rush. Natural pearls fetch high prices around the world and the floor of the reef was once littered with them. 

 

In 1877, hundreds of breast helmeted divers⁶ risked their lives for hours on end in waters up to 15 feet deep, searching them out. With heavy leg boots they trampled⁷ all over the delicate reef. They left terrible devastation⁸ in their wake. But whilst the reef quickly recovered, the pearl corals were not so lucky. Within a few short years, the trade was over.

1 plummeting   

v.垂直落下，骤然跌落( plummet的现在分词 )

参考例句：

• Prices are rising, falling, going up, going down, shooting up, plummeting, etc. 物价在上涨、下跌、上升、下落、猛然上涨、骤然下跌等。 来自辞典例句
• The enemy plane went plummeting into the sea. 敌机直直掉进海里。 来自辞典例句

2 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

3 conspired   

密谋( conspire的过去式和过去分词 )； 搞阴谋； （事件等）巧合； 共同导致

参考例句：

• They conspired to bring about the meeting of the two people. 他们共同促成了两人的会面。
• Bad weather and car trouble conspired to ruin our vacation. 恶劣的气候连同汽车故障断送了我们的假日。

4 migration   

n.迁移，移居，（鸟类等的）迁徙

参考例句：

• Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
• He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。

5 reigns   

n.君主的统治( reign的名词复数 )；君主统治时期；任期；当政期

参考例句：

• In these valleys night reigns. 夜色笼罩着那些山谷。 来自《现代汉英综合大词典》
• The Queen of Britain reigns, but she does not rule or govern. 英国女王是国家元首，但不治国事。 来自辞典例句

6 divers   

adj.不同的；种种的

参考例句：

• He chose divers of them,who were asked to accompany him.他选择他们当中的几个人，要他们和他作伴。
• Two divers work together while a standby diver remains on the surface.两名潜水员协同工作，同时有一名候补潜水员留在水面上。

7 trampled   

踩( trample的过去式和过去分词 )； 践踏； 无视； 侵犯

参考例句：

• He gripped his brother's arm lest he be trampled by the mob. 他紧抓着他兄弟的胳膊，怕他让暴民踩着。
• People were trampled underfoot in the rush for the exit. 有人在拼命涌向出口时被踩在脚下。

8 devastation   

n.毁坏；荒废；极度震惊或悲伤

参考例句：

• The bomb caused widespread devastation. 炸弹造成大面积破坏。
• There was devastation on every side. 到处都是破坏的创伤。 来自《简明英汉词典》