Air is all round usIt is around us31_we walk and play．From the time we are born，air is ar

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．
【小题1】A．ifB．becauseC．whenD．what【小题2】A．tooB．alsoC．eitherD．yet【小题3】A．withB．byC．inD．around【小题4】A．needB．hopeC．wantD．1ike【小题5】A．have B．have no C，with D．without
【小题6】A．littleB．a IittleC．fewD．a few【小题7】A．aboutB．overC．thanD．then【小题8】A．orB．andC．soD．but【小题9】A．movingB．standingC．stoppingD．sleeping【小题10】A．is 1ikeB．1ikesC．callsD．is calledC

(答案→)C 解析：本文主要讲述的是空气在我们周围无处不在以及空气的重要性。【小题1】句意：当我们走路或玩的时候，空气在我们周围。故选C .【小题2】句意：当我们上床睡觉的时候，空气也在我们周围。故选B。【小题3】指我们生活在空气中，故选C。【小题4】根据句意这里指需要空气，故选A。【小题5】句意：没有空气生物不能生存。故选D。【小题6】这里指一些天，故选D。【小题7】固定短语more than ,故选C。【小题8】这里指或者选or 。【小题9】根据下文暗示，指流动的空气，故选A。【小题10】固定短语be called 被叫做。。。。。。

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