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Air is all round us.It is around us___31____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 32 around us.We live 33 air.
All living things 34 air.Living things cannot live 35 air.We can live without any water for 36 days,but we cannot live for more 37 a few minutes without air.When we are working 38 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.We can feel it when it is 39 . Moving air 40 wind.
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useful, visit , travel, knowledge, two, with, popular, come, but, advantage, other, in |
A.by traveling we can see different people. |
B.by traveling we can make friends. |
C.by traveling we can enjoy the beautiful scenery of different places. |
D.by traveling we can enjoy delicious food. |
A.Traveling | B.Places of Interest |
C.Advantages of Traveling | D.Disadvantages of Traveling |
Air is always around us. It is around us when we walk and play. From the time we are born, air is around us. When we sit down, it is around us. When we go to bed, air is also around us. We live in air.
All the animals and plants need air. Living things can’t live without air. We can live without food or water for a few days, but we can not live for more than a few minutes without air. We breathe in air. When we are walking 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 is moving. Moving air is called wind. How can we make air move? Here is one way. Hold and open a book in you hand in front of your face. Close it quickly! What you feel is the air.
1._________ need air.
A. Some of the animals????????????? B. All the things
C. Some of the plants????????????? D. All the animals and plants
2.We can live for a few days __________.
A. without air????????????? B. without food or water
C. without food or air????????????? D. without air or water
3.We need _________ air when we are asleep.
A. less????????????? B. no????????????? C. most????????????? D. a lot of
4.Which of the following sentences is TRUE(对的)?
A. Sometimes we don’t live in air.????
B. Air is not around us when we go to bed.
C. We can live happily without air.???
D. We need more air when we are working or running.
5.We live in air, but we can’t ________ it.
A. look????????????? B. see????????????? C. get????????????? D. feel
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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.
【小题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. |
A.there is less air on the earth than on the moon. |
B.the earth is covered with water |
C.the earth is covered with air |
D.there is no air on the earth. |
A.land | B.A mziror | C.A cat | D.A river. |
A.water | B.air | C.food | D.sunlight . |
A.dies | B.runs fast | C.takes a rest | D.sleeps |