71. Earth in Danger p.488

 

　　Seeing is believing. But seeing a huge rock half the size of Earth smash into Jupiter in July 1996 wasincredible. Can you imagine what would happen if Earth collided with a huge space rock? It would bedisastrous. In fact, it is thought that a meteor killed the dinosaurs¹ millions of years ago.
A rock like the one that hit Jupiter could split Earth in two. Doing nothing about it is like waitingfor the end of the world. So scientists plan to start project to identify all space rocks that could hit Earth.

 

    
be in danger
Seeing is believing. = To see is to believe. 眼见为实
incredible = unbelievable 难以置信的
Earth 地球(相对于其它星球)     the earth 指地球本身     on earth 在地球上(固定用法), 究竟adv.in the world
The bus collided with the car and killed two people.
When the typhoon hit the island, it caused many disasters.
meteorite² 陨石    meteor 流星
do nothing about sth       We should do something about our traffic problem.
identify 辨别，鉴别
 

1 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》

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。