More and more people have a low-C life and the air is getting much    than a few

More and more people have a low-C life and the air is getting much    than a few

题型:不详难度:来源:
More and more people have a low-C life and the air is getting much
    than a few years ago.
A.cleanB.cleanestC.cleanerD.the cleanest

答案
C
解析
英语中在表示两个事物进行对比时,一般用比较级结构,常见搭配结构为比较级+than,但是当比较范围确定在两个事物之间时,即使句子结构有所不同也用比较级。也就是说,只要是两个事物进行对比,不管什么结构都用比较级。形容词的最高级表示在三个及三个以上的多个中进行比较,确定其比较范围是解答此类问题的关键,注意形容词最高级是特指前面定冠词不能省略。句意:越来越多的人过一种低碳生活,空气变得比前几年干净了。结合语境可知本句表示与前几年的对比,故用形容词的比较级,选C。
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-lt"s    than it used to be, but there"s still a long way to go.
A.worse B.worstC.betterD.best

题型:不详难度:| 查看答案
Lanzhou is the only capital city that the Yellow River, the second ________ river in China, passes through.。
A.longB.longestC.longerD.length

题型:不详难度:| 查看答案
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A. far    B.  farther    C. farthest .
题型:不详难度:| 查看答案
The river has become much ______ than before because of the waste water from the factories.
A. dirty   B. dirtier C. dirtiest
题型:不详难度:| 查看答案
Mr. Smith thinks running is _________ than gymnastics.
A.very popularB.more popular
C.most popularD.the most popular

题型:不详难度:| 查看答案
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