英语听力：探索发现 科学新发现：我们的大气层-23

 But the friction¹ and heat wears away at the space rock, the hot air actually melts the metal surface, and often the collision with the atmosphere can have a shattering effect, splitting the meteorites³ along fissures⁴.

This is an actual meteorite², and if this were doing counter the atmosphere at high speed in its current condition, and that's the result.

Only fragments of the original asteroids⁵ survive the fall to Earth, their speed has dropped from 17,000 to 300 miles an hour, rock as big as station wagons⁶ have shrunk to the size of golf balls, the impact on the surface forming holes a few inches deep, the chances of finding one are remote.

Here we go. I'll get the shovel⁷, right about there, maestro.

It looks promising⁸, but this time the guys are out of luck.

So yeah we've found a plough, and basically a lot of different types of trash can be in these fields and so anything that's ferrous our detector⁹ is going to pick up, meteorwrong as we call it as opposed to meteorite.

On average they uncover 75 meteorwrongs for every meteorite.

1 friction   

n.摩擦，摩擦力

参考例句：

• When Joan returned to work,the friction between them increased.琼回来工作后，他们之间的摩擦加剧了。
• Friction acts on moving bodies and brings them to a stop.摩擦力作用于运动着的物体，并使其停止。

2 meteorite   

n.陨石；流星

参考例句：

• The meteorite in Jilin Exhibition Hall is believed to be the largest in the world.吉林展览馆的陨石被认为是世界上最大的。
• The famous Murchison meteorite smashed into the Australian ground in 1969.1969年著名的默奇森陨石轰然坠落在澳大利亚。

3 meteorites   

n.陨星( meteorite的名词复数 )

参考例句：

• Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
• One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites. 地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。 来自《简明英汉词典》

4 fissures   

n.狭长裂缝或裂隙( fissure的名词复数 )；裂伤；分歧；分裂v.裂开( fissure的第三人称单数 )

参考例句：

• Rising molten rock flows out on the ocean floor and caps the fissures, trapping the water. 上升熔岩流到海底并堵住了裂隙，结果把海水封在里面。 来自辞典例句
• The French have held two colloquia and an international symposium on rock fissures. 法国已经开了两次岩石裂缝方面的报告会和一个国际会议。 来自辞典例句

5 asteroids   

n.小行星( asteroid的名词复数 )；海盘车，海星

参考例句：

• Asteroids,also known as "minor planets",are numerous in the outer space. 小行星，亦称为“小型行星”，在外太空中不计其数。
• Most stars probably have their quota of planets, meteorids, comets, and asteroids. 多数恒星也许还拥有若干行星、流星、彗星和小行星。

6 wagons   

n.四轮的运货马车( wagon的名词复数 )；铁路货车；小手推车

参考例句：

• The wagons were hauled by horses. 那些货车是马拉的。
• They drew their wagons into a laager and set up camp. 他们把马车围成一圈扎起营地。

7 shovel   

n.铁锨，铲子，一铲之量；v.铲，铲出

参考例句：

• He was working with a pick and shovel.他在用镐和铲干活。
• He seized a shovel and set to.他拿起一把铲就干上了。

8 promising   

adj.有希望的，有前途的

参考例句：

• The results of the experiments are very promising.实验的结果充满了希望。
• We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。

9 detector   

n.发觉者，探测器

参考例句：

• The detector is housed in a streamlined cylindrical container.探测器安装在流线型圆柱形容器内。
• Please walk through the metal detector.请走过金属检测器。