Air is all around us. It is around us as we walk and play. From the time we were born air is around us on every side. When we sit down, it is around us. When we go to bed, air is also around us. We live in air. We can live without food or water for a few days, but we cannot live for more than a few minutes without air. We take in air. When we are working or running we need more air. When we are asleep, we need less air. We live in air, but we cannot see it. We can only feel it when it is moving. Moving air is called wind. How can we make air move? Here is one way. Hold an open book in front of your face, close it quickly. What can you feel? What you feel is air.
空氣
我們周圍到處都是空氣。當我們走路和玩耍時，它就在我們身邊。從我們出生的那一刻起，空氣就在我們身邊。當我們坐下時，它就在我們身邊。當我們上床睡覺時，空氣也在我們周圍。我們生活在空氣中。沒有食物和水我們可以活幾天，但是沒有空氣我們不能活上幾分鐘。我們接受空氣。當我們工作或跑步時，我們需要更多的空氣。當我們睡著的時候，我們需要更少的空氣。我們生活在空氣中，但我們看不見它。只有在移動時我們才能感受到它。移動的空氣叫風。我們怎樣使空氣運動?這裡有一條路。把一本打開的書放在你面前，快把它合上。你能感覺到什麼?你所感受到的是空氣。