题目内容
7．Don't talk to Mary like that，she is only____ eleven-year-old girl．（ ）| A． | a | B． | an | C． | the | D． | / |
分析 不要那样和Mary说话，她仅仅是一个十一岁的孩子．
解答 答案：B．本题考查的是冠词的用法．eleven-year-old是一个形容词，汉语意思为"十一岁的"，修饰后面的名词girl．表示数量"一"用a或者an来表示，eleven首字母的音素是/i/，属于元音音素，所以用an来修饰．故选B．
点评 做这种题时，首先要确定考察的范围，确定是冠词的用法．然后根据紧挨着单词的首字母的音素确定是元音音素还是辅音音素，来确定填冠词a还是an．
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