一切生命赖以生存的太阳

All life¹ on our earth² depends³, in one way or another, on the sun. Without its light and warmth⁴, there would⁵ be no life. The sun gives us our food and our clothing⁶ material⁷. It even⁸ gives us our coal⁹, too.
The sun also makes our day and our night. Light travels¹⁰ in straight¹¹ lines. It comes from the sun 45,000,000 miles¹² away.
The sun lights half the earth at a time. It is day on the lighted side¹³. It is night on the dark¹⁴ side of the earth. Almost¹⁵ every part¹⁶ of the earth turns from day to night during¹⁷ every 24 hours.
A sunny day in winter is colder than a sunny day in summer. This is because the summer day is longer, everything has a longer time to warm up and the sun shines¹⁹ more directly²⁰ on the earth. In winter, the day is short, there is less²¹ time for everything to get warm and the sun doesn't shine¹⁸ more directly on the earth.
Land²², just like the sand, warms up more quickly than water but it also loses²³ its heat²⁴ more quickly. So on a hot sunny summer's day on the beach, you can feel how hot the sand gets. The water is cool to the feet when you go for a paddle²⁵.
The sun makes our earth beautiful. It gives us light. It keeps us warm. It makes things grow. We can not live without the sun.

地球上的一切生命都是以各种方式依靠太阳而生存的。没有太 阳的光和热，就没有生命。太阳给了我们食物、衣服，甚至我们的煤也是太阳供给的。
太阳还给我们创造了白天和黑夜。光是直线传播的，它来自 9500万英里远的太阳。
太阳只能照亮半面地球。照亮的一面是白昼，暗的一面就是黑夜。在24小时当中，地球的每部分进行着白昼和黑夜的交替。
一个冬天的晴日要比一个夏天的睛日冷，因为夏天的白天比较长，一切东西受热的时间较长，太阳直射到地球上。冬天，白昼短，物体受热时间相对短，而且太阳相对较少地直射地球。
土地，就像沙子一样，比水受热快，但失热也快。因此，在一个赤热的夏日的海滩上你会感到沙滩多么炽热，而当你在浅水滩行走的时候，水却是凉的。
太阳使我们的地球很美好，它给了我们光亮，使我们温暖，使万物生长。没有太阳，我们就不能生存。