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 Photosynthesis 光合作用
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Every living creature needs food and water to survive. Without food and water, a creature would die. Plants are also living creatures. So they need to have these things, too. Plants can create their own food. They do this in a process called photosynthesis. Plants need sunlight in order to make energy. First, when the sun shines, chlorophyll in the plants captures the sunlight. Sunlight is just energy. So the chlorophyll is capturing energy. Then a plant needs two more things: water and carbon dioxide. That is when photosynthesis can take place. In photosynthesis, a plant undergoes a chemical reaction. Thanks to the chlorophyll, it creates sugar. The plant feeds on the sugar. The reaction also produces oxygen. The plant releases oxygen into the air, and people breathe it. So, without photosynthesis, people could not survive either.
每一個生物體都需要水和食物來生存， 缺乏水和食物，生物就會死亡。植物也是生物體，因此也需要這些東西。植物可以自行製造食物，而這個製造的過程稱作「光合作用」。 植物需要陽光來產生能量。首先，當太陽照射時，植物體中的葉綠素會汲取陽光，陽光就是能量，也就是說葉綠素是在吸收能量。接著，植物還需要另外兩個東西：水以及二氧化碳。這就是光合作用發生的時候。光合作用中，植物會經歷一種化學反應，由於有葉綠素，光合作用產生了糖分，植物也從中得到滋養。這個反應也會產生氧氣，植物釋放氧氣到空氣中，人們才得以吸入。所以，沒有光合作用，人們也無法存
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| ──選自《超級英語閱讀訓練 1：FUN學美國英語課本精選 【二版】（16K +寂天雲隨身聽APP）》 |
