Lesson 71 Earth in Danger
2020-10-09 本文已影响0人
jiaway
Seeing is believing.But see a huge rock half sieze of Earth smash into Jupiter in july 1996 was incredible.Can you image what would happen if Earth collided with a huge space rock?It would be disastrous.In fact,It is though that a meteor killed the dinosaurs millions of years ago.
A rock like the one that hit Jupiter could spit Earth in two.Doning nothing about it is like waiting for the end of the world.So scientists plan to start a project to identify all space rocks that could hit Earth.
All / 序数词（the first 等）/ 最高级/ the only / the very 等后用 that
