英语听力：2013-03-31 恐龙之战之极限生存 Extreme Survivors—6

 When you start off coming out of the egg and you’re less than, say, 2 feet long and you are in a world full of predators² that are loving to crunch³ on you, then you need to get big fairly quickly.  

 

The future seems bleak⁴ for this dinosaur⁵.  With its life on the constant threat, how would it survive?  

 

Tyrannosaurus Rex, a skull⁶ 1.5 meters long, up to 60 serrated teeth, able to cover 5 meters in a single stride, this is one of the biggest carnivorous dinosaurs⁷ ever to walk the earth.  

 

T-Rex has bone-crushing teeth.  They’re huge. They have 2 or 3 or 4 times the strength for the body size of any other meat-eater.  

 

But a T-Rex is born into a world of enemies.  And survival for this goliath is never guaranteed. 

 

Herbivores are not dummies⁸. They’ll try to remove the dangerous elements in a preemptive strike. 

 

If you are a baby Tyrannosaur, every mega herbivore in the environment wants to crush you. 

 

Even the triceratops with its tiny brain is aware of the T-Rex’s potential menace, knowing that one day, this tiny T-Rex chick will grow into a menacing monster, easily able to attack and defeat this plant eater.  But maybe their worst enemy is bit closer to home.  

 

Probably the greatest danger to a baby T-Rex is another T-Rex, the family from over the hill, because Darwinian calculus⁹ tells you, the predator¹, to eliminate your competition, other predators, whenever you can.

1 predator   

n.捕食其它动物的动物；捕食者

参考例句：

• The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
• Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。

2 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》

3 crunch   

n.关键时刻；艰难局面；v.发出碎裂声

参考例句：

• If it comes to the crunch they'll support us.关键时刻他们是会支持我们的。
• People who crunch nuts at the movies can be very annoying.看电影时嘎吱作声地嚼干果的人会使人十分讨厌。

4 bleak   

adj.(天气)阴冷的；凄凉的；暗淡的

参考例句：

• They showed me into a bleak waiting room.他们引我来到一间阴冷的会客室。
• The company's prospects look pretty bleak.这家公司的前景异常暗淡。

5 dinosaur   

n.恐龙

参考例句：

• Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击？
• He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。

6 skull   

n.头骨；颅骨

参考例句：

• The skull bones fuse between the ages of fifteen and twenty-five.头骨在15至25岁之间长合。
• He fell out of the window and cracked his skull.他从窗子摔了出去，跌裂了颅骨。

7 dinosaurs   

n.恐龙( dinosaur的名词复数 )；守旧落伍的人，过时落后的东西

参考例句：

• The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
• Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》

8 dummies   

n.仿制品( dummy的名词复数 )；橡皮奶头；笨蛋；假传球

参考例句：

• If he dummies up, just try a little persuasion. 如果他不说话，稍微劝劝他就是了。 来自《简明英汉词典》
• All the articles in the window are dummies. 橱窗里的全部物品都是仿制品。 来自《简明英汉词典》

9 calculus   

n.微积分；结石

参考例句：

• This is a problem where calculus won't help at all.对于这一题，微积分一点也用不上。
• After studying differential calculus you will be able to solve these mathematical problems.学了微积分之后，你们就能够解这些数学题了。