题目内容
20．I am considering buying ______ used car for its lower price．（ ）| A． | an | B． | a | C． | the | D． | / |
分析 因为价格较低，我正在考虑买一辆二手车．
解答 答案：B．根据题干，本句的意思是因为价格较低，我正在考虑买一辆二手车．根据题干可知，这里的二手车是不固定的，故应是泛指；又根据used的音标是/ju：zd/，是以辅音音素开头的单词，应用a．故选B．
点评 应该熟练掌握冠词的用法．a、an是不定冠词，可以表示数量"一个"，a放在辅音音素之前；an用语元音音素之前．the 定冠词，是特指．
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