植物和动物不同,植物可以自己生产食物。植物可以吸收太阳的能量,并把它转化为食物,这个过程叫做光合作用。为了进行光合作用,植物里必须有一种叫做叶绿素的东西。叶绿素是绿色的,所以植物也就是绿色的了。植物利用叶绿素、二氧化碳和水来生产一种叫葡萄糖的含糖食物。在这个过 Different plants and animals, plants can produce their own food. Plants can absorb the sun's energy and convert it into food, a process called photosynthesis. There must be something called chlorophyll in plants for photosynthesis. Chlorophyll is green, so plants are green too. Plants use chlorophyll, carbon dioxide and water to produce sugary sugars that are called glucose. In this past