题目内容

The air in Beijing is getting much ______ now than a few years ago.

A. clean            B. cleaner     C. cleanest         D. the cleanest

 

【答案】

B

【解析】略

 

练习册系列答案
相关题目
The air in Beijing is getting much ______ now than a few years ago.
A．cleanB．cleanerC．cleanestD．the cleanest
If there are         trees, the air in our city will be         cleaner.
A．less, moreB．more, moreC．more, muchD．much, more

先阅读短文，掌握其大意。然后从方框中所给的词中选出恰当的10个，并用其适当形式填空，每个词限用一次。(每小题1分)

stop, though, sleep, their, bad, city, ill, we, start, fresh, please, breath
    Villagers are healthier than people who live in towns. One reason for this is that country air is 【小题1】  than the air in smoky   【小题2】 . The villager is   【小题3】  fresh clean air all day in the fields, but the air the townsman breath is always full of smoke and dust. We cannot live without air. If we are   【小题4】  from breathing even for five minutes, we will die. Bad air means bad health and certain kinds of   【小题5】 , which may kill us,   【小题6】  they may not kill us at once.
We all know   【小题7】  feelings we will get if we stay a long time in a shut, crowded room. After a time, we begin to feel very    【小题8】  , and can hardly keep our eyes open. Then our heads begin to ache, and the longer we stay the   【小题9】  we feel. How nice it is when we get outside into the fresh air! We must, therefore, keep   【小题10】  windows open, so that air in our rooms is always fresh.

Now the air in our city is _______ than it used to be. Something must be done to stop it.

A．very good         B．much better       C．rather bad         D．even worse

 

If there are ____trees, the air in our city will be ____cleaner.

A．fewer, much       B．more, more        C．more, much        D．much, more

 

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