英语听力：自然百科 大堡礁：自然奇迹—22

 The snail¹ appears to release chemicals that paralyse its victim. 

The goatfish seems powerless to escape as it's swallowed alive.

Moments later, a venomous barb² inside the snail puts the fish out of its misery³.

 

In a place where even seashells are deadly, remaining undetected is essential if you want to survive the night.

And simply hiding is not enough. Just a hint of your scent⁴ wafting⁵ into the current can attract trouble.

 

The parrotfish has come up with an elegant solution in a form of a sleeping bag made out of membrane⁶.

It stops the smell spreading along the reef and being picked up.

It's a very good way if you're a parrotfish of ensuring you get a good night's sleep.

 

No one has ever filmed  a parrotfish making its cocoon⁷ before.

It starts by exuding⁸ a layer of mucous⁹ around its body.

It then draws water into its mouth and pushes it out of its gills, blowing up the mucous bubble around it.

1 snail   

n.蜗牛

参考例句：

• Snail is a small plant-eating creature with a soft body.蜗牛是一种软体草食动物。
• Time moved at a snail's pace before the holidays.放假前的时间过得很慢。

2 barb   

n.（鱼钩等的）倒钩，倒刺

参考例句：

• The barb of his wit made us wince.他那锋芒毕露的机智使我们退避三舍。
• A fish hook has a barb to prevent the fish from escaping after being hooked.鱼钩上都有一个倒钩以防上了钩的鱼逃走。

3 misery   

n.痛苦，苦恼，苦难；悲惨的境遇，贫苦

参考例句：

• Business depression usually causes misery among the working class.商业不景气常使工薪阶层受苦。
• He has rescued me from the mire of misery.他把我从苦海里救了出来。

4 scent   

n.气味，香味，香水，线索，嗅觉；v.嗅，发觉

参考例句：

• The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
• The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。

5 wafting   

v.吹送，飘送，（使）浮动( waft的现在分词 )

参考例句：

• But that gentle fragrance was clearly wafting from the window. 但那股淡淡的香气，却分明是从母亲的窗户溢出的。 来自互联网
• The picture-like XueGuo, wafting dense flavor of Japan, gives us a kind of artistic enjoyment. 画一般的雪国，飘溢着浓郁的日本风情，给人以美的享受。 来自互联网

6 membrane   

n.薄膜，膜皮，羊皮纸

参考例句：

• A vibrating membrane in the ear helps to convey sounds to the brain.耳膜的振动帮助声音传送到大脑。
• A plastic membrane serves as selective diffusion barrier.一层塑料薄膜起着选择性渗透屏障的作用。

7 cocoon   

n.茧

参考例句：

• A cocoon is a kind of silk covering made by an insect.蚕茧是由昆虫制造的一种由丝组成的外包层。
• The beautiful butterfly emerged from the cocoon.美丽的蝴蝶自茧中出现。

8 exuding   

v.缓慢流出，渗出，分泌出( exude的现在分词 )；流露出对（某物）的神态或感情

参考例句：

• Water-soaked exuding spots occur in the bark near the growing shoot tips. 靠近生长着的稍皮内有水浸出点，使该处膨大。 来自辞典例句
• Leaders get into everyone's skin, exuding positive energy and optimism. 深入到员工们中间，向他们传递积极的活力和乐观精神。 来自互联网

9 mucous   

adj. 黏液的，似黏液的

参考例句：

• Healthy,skin,mucous membranes,and cilia are natural barriers to many viruses.健康的皮肤，粘膜和纤毛是许多病毒的天然屏障。
• Seromucous glands contain both mucous and serous cells.浆粘液腺既含有粘液性细胞，又含有浆液性细胞。