题目内容
17．The accident happened ________ the afternoon of April 15．（ ）| A． | on | B． | at | C． | in | D． | to |
分析 那次事故发生在4月15号的下午．
解答 答案：A．
根据时间"the afternoon of April 15"可知句子中的时间状语是"在4月15号的下午"，是考查某一天下午前面的介词，用介词on． at+时间点； in+年、月、季节等；on+具体的某一天或某一天的上午/下午/晚上．故选A
点评 本题考查时间介词的辨析．在早中晚要用in，如in the morning，但是具体到某一天的早中晚就要用on，这是常考的考点，也是容易出错的考点．
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