题目内容
20.Air pollution has become ______ than ever before.We must do something to stop it.( )A. | serious | B. | more serious | ||
C. | most serious | D. | the most serious |
分析 翻译:空气污染已经变得比以前更严重了.我们必须做些事情去阻止它.
解答 根据句中的"than ever before"可知是和以前比较,所以采用形容词的比较级,故选B.
点评 本题考查形容词的比较级的用法,判断比较级可到句中寻找关键词,如:than;of the two;A or B;比较级and 比较级;the+比较级…the+比较级等.
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