1. The damaged plane spiralled towards the earth.
    损毁的飞机旋转着跌向地面.

2. The air ten miles above the earth is very tenuous.
    地面上十英里处的气体是非常稀薄的。

3. The earth turns round at a uniform rate.
    地球以不变的速度旋转。

4. To escape from the Earth in a rocket, one must travel at seven miles per second.
    要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，

5. These ocean waves are among the earth´s most complicated natural phenomena,
    这些海浪属于地球上最复杂的自然现象。

6. The undulating waves of the open sea are generated by three natural causes: wind, earth movements or tremors, and the gravitational pull of the moon and the sun.
    公海上起伏的波浪是由3个自然因素构成的：风、地球的运动或震颤和月亮、太阳的引力。

7. These two have travelled through the earth.
    这两种波都是穿过地球而来的。

8. The third, or main wave, is the slowest and has travelled round the earth through the surface rocks.
    第三种波，即主波，是最慢的，是围绕地球通过表面岩石传来的。

9. The bridge is so long that the shape of the earth had to be taken into account by its designer.
    由于桥身太长，设计者不得不考虑了地表的形状。

10. The highest point of the earth is in Asia.
    地球的最高点在亚洲，