Air is all around us. It is around us a______ we walk and play.From the time we are 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.

　　All l______ things need air. We can live without food or water for a few days, but we can't live for more than a few minutes w______ air. We take in air. When we are working or running we need m______ air. When we are asleep, we need less air.

　　We live in air, but we can't see it. We can only feel it. We can feel it when it is moving. Moving air is called wind. How can we make air moving?

　　Here is one way. Hold an open book in front of your face. Close it quickly. What can you feel? W______ you feel is air.

阅读下列短文，回答文后题目。

　　We live in the“computer age”. Just 41 years 1 , computers couldn't do much. They were very big and expensive. They used a lot of energy(能量). Only 2 people were interested 3 them. Today computers are smaller and cheaper. They can do 4 difficult(困难的) work.

　　Computers become important 5 many reasons(原因). They work faster than man and make fewer mistakes(错误). They can“remember”much information (信息). A computer can do millions of (几百万) problems 6 a few seconds. A person(人) might 7 years to work out so many problems.

　　People now use computers in nearly every kind of work. Computers are very useful and the use of computers 8 growing. More computers mean more jobs for people, because people 9 to run(操作) and mend them.

　　Would you like to learn 10 to run a computer?

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阅读并判断正误．

　　Air is all around us. It’s around us when、we walk and play. From the time we were born. air is around us on every side. When we sit down, it’s around us. When we go to bed, air is also around us. 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 mole than a few minutes without air. We take in air. When are working or running, we need more air. When we are asleep, we need less air.

　　We live in air, but we can’t see it. We can only feel it. We can feel it when it’s moving. Moving air is called wind. How can you make air move? Here is one way. Hold an open book in your hands in. front of your face. Close it quickly. What can you feel? What you fed is the air.

1．From the time we were born, air is around us.

2．When we are asleep, We don’t need air.

3．We can’t live without air.

4．Living things can live without air.

5．We can live without food or water for a few days.

6．We can also live without air for a few days.

7．When we are walking or running．we need less air.

8．We can’t see air but we can feel it.

9．Moving air is called wind.

10．Air is very important for us.