题目内容
19．They will try their best in the Dragon Boat Racing _____ they may fail．（ ）| A． | if | B． | unless | C． | till | D． | although |
分析 他们会尽一切努力的，尽管他们在龙舟竞赛中可能会失败．
解答 答案：D；考查状语从句的连词的用法．if如果；unless除非；till直到…时；although虽然．根据句意，"They will try their best in the Dragon Boat Racing他们会在龙舟竞赛中尽一切努力的"和"they may fail他们可能会失败"可知空格处，应是表示转折的连词，although引导让步状语从句，意为尽管，虽然．故选D．
点评 根据句中信息推测出该句的句意是解答此题的关键；还要对给出的连词进行分析和比较，从而作出正确解答．
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