英语听力：自然百科 大堡礁：自然奇迹—20

 A coral reef during the day is a very different place from a coral reef at night. The atmosphere changes completely. 

The day shift has logged off, and the night shift has gone to work. It's mean and moody¹, and the animals here mean business.

 

Just as in human cities, there's a new cast of characters after dark. 

Octopus² emerge from their holes to stalk their prey³.

A tiny sole improves his  chances of survival by mimicking⁴ a toxic⁵ flatworm. Some of the strangest nocturnal creatures are relatives of the starfish, like this feather-mouthed sea cucumber, sifting⁶ food from the sand.

 

Another is the basket star. It comes alive at night, throwing out thousands of arms to filter food from the plankton-rich current.

These animals can live for a very long time, up to 35 years. And there's records of these guys being seen night after night, in the same place for over 15 years.

1 moody   

adj.心情不稳的，易怒的，喜怒无常的

参考例句：

• He relapsed into a moody silence.他又重新陷于忧郁的沉默中。
• I'd never marry that girl.She's so moody.我决不会和那女孩结婚的。她太易怒了。

2 octopus   

n.章鱼

参考例句：

• He experienced nausea after eating octopus.吃了章鱼后他感到恶心。
• One octopus has eight tentacles.一条章鱼有八根触角。

3 prey   

n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨

参考例句：

• Stronger animals prey on weaker ones.弱肉强食。
• The lion was hunting for its prey.狮子在寻找猎物。

4 mimicking   

v.（尤指为了逗乐而）模仿( mimic的现在分词 )；酷似

参考例句：

• She's always mimicking the teachers. 她总喜欢模仿老师的言谈举止。
• The boy made us all laugh by mimicking the teacher's voice. 这男孩模仿老师的声音，逗得我们大家都笑了。 来自辞典例句

5 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。

6 sifting   

n.筛，过滤v.筛( sift的现在分词 )；筛滤；细查；详审

参考例句：

• He lay on the beach, sifting the sand through his fingers. 他躺在沙滩上用手筛砂子玩。 来自《简明英汉词典》
• I was sifting the cinders when she came in. 她进来时，我正在筛煤渣。 来自辞典例句