题目内容
14．He made up his mind to study abroad in his _______．（ ）| A． | thirty | B． | thirtieth | C． | thirties | D． | thirteen |
分析 他决定在30几岁的时候去国外留学．
解答 答案：C．考察数词辨析．由题意可知是在他30岁的时候出国留学．thirty是30的意思，是基数词；thirtieth是第三十的意思，是序数词；thirteen是基数词，十三的意思；而对于thirties，一般用于in one's thirties 结构表示"在某人30多岁的时候"，因此选择C．
点评 考察数词辨析，应根据题意及固定搭配进行选择．
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