题目内容
2.Air quality today is much worse than _____ in the 1980s because of too much air pollution.( )A. | that | B. | those | C. | one | D. | what |
分析 由于空气污染严重,现在的空气质量比20世纪80年代的空气质量差多了.
解答 答案:A.
本空用that代替前面的不可数名词air quality表示同一类别中的不同事物.those为that的复数形式,多用来修饰可数名词复数;one为泛指,指代前面提到的同类人或物(可数名词)中的一个;what用作关系代词,也即连接代词,引导名词性从句,可以作主语、宾语、定语.much用来修饰形容词比较级worse;because of引导一个原因状语;in the 1980s20世纪80年代.结合句意"现在的空气质量比20世纪80年代的空气质量差多了"可知选A.
点评 代词的用法要注意其使用环境,结合句意及句子的逻辑关系来进行合理推断.what多用来引导名词性从句,如:
They've done what they can to help her.他们已经尽力帮助了她.(宾语从句)
He is no longer what he was.他已经不是以前的那个样子.(表语从句)
What Mary is is the secretary.玛丽的职务是秘书.(主语从句)
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