题目内容
18．A．American．B．India．C．English．分析 略
解答 B
点评 略
练习册系列答案
相关题目
9．No air means death．There is air around us （36）Bwe can't see it．Air is everywhere and it gives （37）A to every living thing．We can't live （38）B it．Bad air makes people ill．We must have fresh air to keep us（39）C．
In the city there are a lot of people and there are too many （40）Crunning on the road．The gas which the car sends out is made up of（组成） bad gases．Every day we（41）A it in and out．This makes us feel sick．There are many （42）C，too．From the chimneys（烟囱） of these factories，we （43）Aget the smoke in black color．This kind of smoke is（44）Bto our health．So in order to keep us healthy，we have to go out to the （45）Cto breathe more fresh air．Or we can go up hills to get more fresh air．
In the city there are a lot of people and there are too many （40）Crunning on the road．The gas which the car sends out is made up of（组成） bad gases．Every day we（41）A it in and out．This makes us feel sick．There are many （42）C，too．From the chimneys（烟囱） of these factories，we （43）Aget the smoke in black color．This kind of smoke is（44）Bto our health．So in order to keep us healthy，we have to go out to the （45）Cto breathe more fresh air．Or we can go up hills to get more fresh air．
| 36．A．because | B．though | C．so |
| 37．A．life | B．name | C．pleasure |
| 38．A．with | B．without | C．below |
| 39．A．quiet | B．tall | C．healthy |
| 40．A．dogs | B．trains | C．cars |
| 41．A．breathe | B．draw | C．bring |
| 42．A．animals | B．people | C．factories |
| 43．A．usually | B．never | C．seldom |
| 44．A．helpful | B．dangerous | C．necessary |
| 45．A．office | B．city | C．Countryside． |
