题目内容
19．Kangkang is good ________ running．He thinks it is good ________ his health．（ ）| A． | for； at | B． | at； for | C． | at； to |
分析 康康擅长跑步，因为他认为跑步对身体健康有好处．
解答 答案：B 考查常用介词的辨析．根据句意康康擅长跑步，因为他认为跑步对身体健康有好处，考查固定搭配be good at擅长，和be good for对…有好处，故选择B．
点评 考查常用介词的辨析．掌握介词的基本用法，选择符合题意的介词是做本题的关键．
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