1. The idea that the sun goes round the earth has long discredit.
    太阳围绕地球的说法已不为人们相信.

2. The sun is distant from the earth.
    太阳距地球很遥远。

3. The moon goes round the earth.
    月球环绕地球运转.

4. The population of the earth is increasing very fast. Man must make the earth support more people.
    地球上的人口在迅速增长. 人类必须使地球养活更多的人.

5. The population of the earth is increasing very fast.
    地球上的人口在急骤增加。

6. The earth is one of the sun´s planets.
    地球是太阳的一个行星。

7. The population of the earth is increasing very fast. Man must make the earth support more people.
    地球上的人口在迅速增长. 人类必须使地球养活更多的人.

8. The earth revolves round the sun .
    地球绕太阳公转.

9. The earth rotates once every 24 hours.
    地球每24小时转一周.

10. The moon is the Earth´s satellite.
    月球是地球的卫星.