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千变万化的天气地球是一个扁平椭圆体,大陆上有平原,有高原,有盆地,有洼地,有高山,有深谷,起伏相差很大。大陆的四周,有广阔的海洋,最深的海渊,可以淹没大陆上最高的山峰。而在大陆和海洋的面上,却还紧紧地包围着一层很厚的透明的大气,它的厚度约为海洋深度的一百多倍!我们千万不要因为大气是透明的,就忽视了它!我们生活在大气层里面,就像鱼类生活在海洋里一样。而且大气的变化,比较大陆和海洋的变化都要复杂得多,因此它对人生的关系也特别密切。大气是一种不良导体,它不容易直接传导太阳的热;但当地面受了太阳照射,吸收了太阳的热,就
The ever-changing weather is a flat ellipsoid with a plain on the mainland, a plateau, basins, depressions, mountains, and deep valleys. Around the mainland, there are vast oceans and the deepest deep seas can flood the highest peaks on the mainland. On the mainland and ocean, it is still tightly surrounded by a thick layer of transparent atmosphere. Its thickness is about one hundred times greater than the depth of the ocean! We must not ignore it because the atmosphere is transparent. It! We live in the atmosphere, just as fish live in the ocean. Moreover, changes in the atmosphere are more complex than changes in the mainland and the ocean. Therefore, its relationship to life is also particularly close. The atmosphere is a poor conductor, it is not easy to direct the heat of the sun; but the local area is exposed to the sun and absorbs the heat of the sun.