纪录片《我们的地球》 第212期 无垠深海(04)

Excitement far from land.

即使远离陆地也有刺激的事情。

A school of dolphin five hundred strong.

一群多达500条的真海豚。

They've sensed there's food around, and they're racing¹ to catch up with it.

它们感觉到附近有食物，开始加速追赶。

The news has spread. Now a number of schools are on their way.

消息传开，大量的真海豚上路了。

They're heading towards the Azores, volcanic² islands a thousand miles west of Portugal.

它们向亚速尔游去，葡萄牙以西1000英里的火山群岛。

The dolphin scan the water ahead with their sonar. They're close to their target.

海豚利用声纳扫描大海。已经接近目标。

This is it. Scad mackerel.

这就是了。竹荚鲭。

It's difficult for a single dolphin to catch the fish.

单只海豚想吃它们是很困难的。

To avoid wasting energy the work as a group.

为了避免浪费精力，它们进行团队合作。

They drive the fish upwards³, trapping them against the surface

它们将鱼儿赶上海面，目的是诱捕它们，

and there, other predators⁴ await them.

因为那里还有掠食者在等着鱼儿们.

Cory's shearwaters. They're waiting for the dolphin to drive the prey⁵ closer to the surface.

猛鹱。它们正在等着海豚把猎物赶上水面。

Now the shearwaters can dive down on them, descending⁶ to twenty meters or more

猛鹱出动了，它们可以潜至20米甚至更深来捉鱼。

and the dolphins block the baitball's retreat.

海豚们锁定了从海面撤退的鱼群。

The dolphins leave as soon as they've had their fill

海豚吃饱后迅速离开了，

and, at last, the mackerel sink below the diving range of the birds.

最后，竹荚鲭也逃出了猛鹱的攻击范围。

1 racing   

n.竞赛，赛马；adj.竞赛用的，赛马用的

参考例句：

• I was watching the racing on television last night.昨晚我在电视上看赛马。
• The two racing drivers fenced for a chance to gain the lead.两个赛车手伺机竞相领先。

2 volcanic   

adj.火山的；象火山的；由火山引起的

参考例句：

• There have been several volcanic eruptions this year.今年火山爆发了好几次。
• Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

3 upwards   

adv.向上，在更高处...以上

参考例句：

• The trend of prices is still upwards.物价的趋向是仍在上涨。
• The smoke rose straight upwards.烟一直向上升。

4 predators   

n.食肉动物( predator的名词复数 )；奴役他人者（尤指在财务或性关系方面）

参考例句：

• birds and their earthbound predators 鸟和地面上捕食它们的动物
• The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》

5 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。

6 descending   

n. 下行 adj. 下降的

参考例句：

• The results are expressed in descending numerical order . 结果按数字降序列出。
• The climbers stopped to orient themselves before descending the mountain. 登山者先停下来确定所在的位置，然后再下山。