Fixed star
2011级（5）班[毕业]
李婉婷
2012-01-30 14:52
阅读(277)
英语作文
The sun is a fixed star. lt is very hot and it gives out heat and light. Nine planets move around it.The earth is one of them. As far as we know the earth is the only` planet with life on it. The earth has air and water and it gets heat and light from the sun. Life needs air water heat and light. The earth moves around the sun. lt turns around itself toolt turns from west to east. The earth has a satellite the moon. The moon moves around the earth. There is no ais or water on the moon so there is no life there.