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BBC Learning English 英語教學(xué)
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Media English 媒體英語

Blue whales return to the Seychelles 藍鯨重返塞舌爾附近水域

藍鯨是地球上體型最龐大的動物。在印度洋的一片水域, 它們曾因捕鯨活動而幾乎滅絕,而幾十年后, 這片水域的藍鯨數(shù)量已經(jīng)恢復(fù)。

The deep very low frequency song of the blue whale is difficult for us to hear.Depending on what device you're  listening on,  it  might  be too  low for your speakers.

我們?nèi)硕茈y聽到藍鯨發(fā)出的低沉、低頻的叫聲。你在這段音頻中能不能聽到它們的叫聲取決于你使用的音頻播放設(shè)備, 因為藍鯨叫聲的頻率可能低于一些揚聲器可播放的頻率范圍。

But it's the tell-tale loud pulsing call of the world's largest animal, and it's what scientists managed to capture with an underwater "sound trap" – a microphone and recording rig planted on the sea floor near the Seychelles for a whole year.

作為世界上最大的動物,藍鯨發(fā)出的叫聲頗具辨識度,響亮而富有節(jié)奏感。幫助科學(xué)家們記錄到這種叫聲的設(shè)備是一種水下“聲音陷阱”,它由一個麥克風(fēng)和錄音裝置組成,被放置在塞舌爾附近水域的海床上一整年。

Painstaking analysis of all those hours of sound revealed that blue whales spend months in the tropical waters around the tiny island nation.

科學(xué)家們對錄制的大量音頻進行了細致的分析,發(fā)現(xiàn)藍鯨在小面積島國塞舌爾周圍的熱帶水域生活了幾個月的時間。

The researchers have described this as a conservation win – evidence that the population has recovered decades after a ban on commercial whaling.

研究人員稱藍鯨的回歸是一個動物保護的成功案例——在禁止商業(yè)捕鯨幾十年后,藍鯨的數(shù)量已經(jīng)恢復(fù)。

 

1.詞匯表

frequency  頻率

tell-tale   泄露秘密的,足以辨識的

pulsing   脈沖的,節(jié)奏強烈的

recording rig 錄音裝置

painstaking    精心的,仔細的

whaling  捕鯨(活動)

 

2.閱讀理解:請在讀完上文后,回答下列問題。(答案見下頁)

1.Why can it be difficult to hear the blue whale's song?

2.How did scientists record the blue whale's song?

3.True or False? Blue whales are not found in warm regions of the world.

4.What has happened to the blue whale population since whaling was banned?

 

3.答案

1.Why can it be difficult to hear the blue whale's song?

It can be hard to hear the blue whale's song because it is a very low-frequency sound.

2.How did scientists record the blue whale's song?

Scientists used a microphone and recording rig placed on the sea floor.

3.True or False? Blue whales are not found in warm regions of the world.

False.  They  spend  several  months  near  the  tropical  island  nation  of  the Seychelles.

4.What has happened to the blue whale population since whaling was banned?

Blue whale population numbers have recovered since whaling was banned.

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