Question

Air is all around us. At the time we are born, air is around us everywhere .We live in air.

All living things need air. Living things cannot live without air. We can go without  food or water for a few days, but we can't live a few minutes without air. We take in  air. When we are working, we need more air. When we are sleeping, we need less (少量的）air.

We live in air but we cannot see it. We can only feel it. We can feel it when it is moving. Moving air is called wind. How can you make air move? Here is one way. Take an open book in your hands in front of your face. Close it quickly. What can you feel? It is air.

根据短文内容，回答下列各题。

1.Where is air?

2.What do all living things need?

3.What is moving air called?

4.When do we need more air?

5.Can we see air?

Answer

1.It’s all around us.

2.Air.

3.Wind.

4.Working./ When we are working.

5.No, we can’t.

【解析】

试题分析：这篇短文给我们介绍的是空气，空气就在我们的周围，所有的生物都需要空气，我们呼吸空气，但是却看不见它，我们能感觉到它。

1.根据短文的第一句话Air is all around us可知，空气就在我们的周围，故本题答案是It is all around us。

2.根据短文第二段中的开头All living things need air.可知，所有的生物都需要空气。由此可知本题答案是Air。

3.根据短文第三段中Moving air is called wind.可知，流动的空气叫做风。

4.根据短文第二段中When we are working, we need more air可知，当我们工作的时候，我们需要更多的空气。故答案是When we are working。

5.根据短文第三段的开头We live in air but we cannot see it可知，我们生活在空气中，但是我们看不见空气。故本题答案是否定的。

考点：科普类短文阅读。