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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 ,air is also around us ,we live in air .

All living things need air:living things cann’t live without air.

We can go without food or water for a few days ,but we can not live for more than a few minutes without air. When we are working or running ,we need some air. So we breathe faster than usual. When we are asleep, we need less air.

1.From the text ,we know that on the earth _____

2.The writer tells us that _____.

3.Which of the following things need air ?

4.Which of the flooowing is the first important thing for people’s lives ?

5.A man needs more air when he _____.  

完形填空

　　Air is all around us．It is around us ___1___ we walk and play．From the time we are born, air is around us on ___2___ side．When we sit down, it is around us．When we ___3___ to bed, air is ___4___ around us．We live ___5___ air．

　　All living things ___6___ air．Living things cannot live___7___ air．We can live without ___8___ water for ___9___ days, but we can't live for moue ___10___ a few minutes without air．We take in air．When we are working ___11___ running, We need more air．When we are ___12___, we need ___13___ air．

　　We live in air, but we cannot ___14___ it．We can only feel it．We can feel it when it is ___15___．Moving air ___16___ wind．How can we ___17___air move? Here is one way．Hold an open book in your hand ___18___ your face．___19___ it quickly．___20___ you feel is the air．

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A. if　　　B. because　　　C. when　　　D. what

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A. every　　　B. both　　　C. any　　　D. all

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A. drop　　　B. lie　　　C. get　　　D. go

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A. too　　　B. also　　　C. either　　　D. yet

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A. with　　　B. by　　　C. in　　　D. around

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A. need　　　B. depend　　　C. want　　　D. like

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A. have　　　B. have no　　　C. with　　　D. without

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A. some　　　B. any　　　C. no　　　D. many

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A. little　　　B. a little　　　C. few　　　D. a few

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A. about　　　B. over　　　C. than　　　D. then

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A. or　　　B. and　　　C. so　　　D. but

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A. sleep　　　B. any　　　C. in bed　　　D. going to bed

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A. little　　　B. a little　　　C. less　　　D. more

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A. look　　　B. see　　　C. get　　　D. fell

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A. moving　　　B. standing　　　C. stopping　　　D. sleeping

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A. is like　　　B. likes　　　C. calls　　　D. us called

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A. ask　　　B. see　　　C. make　　　D. keep

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A. in front of　　　B. in the front of

C. on top of　　  　D. at the back of

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A. Read　　　B. Look　　　C. Open　　　D. Close

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A. That　　　B. What　　　C. How　　　D. Who

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.

1.From the text, we know that on the earth _____

A．there is air everywhere

B．some animals don’t need air

C．plants need more air

D．for a long time people don’t need air

2.The writer tells us that _____

A．there is less air on the earth than on the moon

B．the earth is covered with air

C．the earth is covered with water

D．there is no air on the earth

3.Which is the first important thing for people’s lives?

A．Water            B．Air               C．Food             D．Sunlight

4.Which of the following things needs air?

A．Land             B．A mirror          C．A cat             D．A river

5.A man needs more air when he _____

A．dies              B．runs fast          C．takes a rest        D．sleeps