Air is all around us. It is around us as we talk and play. From the moment we were born, We are surrounded(围绕)by air. When we sit down, it is around us. When we go to bed, air is also around us. Wherever we are on the earth, We are surrounded by air. We live in air.
All living things need air, living things can’t live without air. We can go without food or water for a few days, but we can’t live for more than a few minutes without air. We breathe(呼吸)in air. When we are working or running, We need more air. So we breathe faster than usual. When we are asleep, We need less air.
【小题1】From the text, we know that on the earth A．there is air everywhereB．some animals don’t need airC．plants need more airD．for a long time people don’t need air【小题2】The writer tells us that A．there is less air on the earth than on the moonB．the earth is covered with airC．the earth is covered with waterD．there is no air on the earth【小题3】Which is the first important thing for people’s lives?A．WaterB．AirC．FoodD．Sunlight【小题4】Which of the following things needs air?A．LandB．A mirrorC．A catD．A river【小题5】A man needs more air when he A．diesB．runs fastC．takes a restD．sleepsA
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(答案→)A
解析：这篇短文主要说明了空气在我们身边无处不在，并论证了空气对于我们的重要性。
【小题1】根据第一段Air is all around us. 及下文描述，可知空气无处不在，故选A。
【小题2】根据第一段Wherever we are on the earth, We are surrounded by air. We live in air. 描述，可知选B。
【小题3】根据第二段All living things need air, living things can’t live without air. 描述，可知选B。
【小题4】根据第二段All living things need air, living things can’t live without air. 描述，可知选C，猫。
【小题5】根据第二段When we are working or running, We need more air. 描述，可知选B。