题目内容
14．Students，carrying their mothers on their backs，took part in a fun raceto celebrate（celebrate） Mother's Day at a middle school in Hefei，on May 7．分析 学生们在五月七号的时候，背着他们的妈妈，参加了合肥一个中学庆祝母亲节的趣味赛跑．
解答 答案：to celebrate．
不定式经常用来作目的状语．根据"fun race"以及"（celebrate） Mother's Day"可知这个趣味赛跑的目的是为了庆祝母亲节，结合给出的英语提示celebrate，所以要用celebrate的不定式来作目的状语，故填to celebrate．
点评 首先要掌握不定式作目的状语的用法，然后结合具体的题目，就可以确定正确答案．
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