题目内容
18．If you your best to do everything，nothing will be impossible．（ ）| A． | will try | B． | tries | C． | tried | D． | try |
分析 句意：
如果你尽力去做所有的事情，就没有什么是不可能的．
解答 答案：D 本题考查if用法．if引导条件状语从句时，主句用一般将来时，从句用一般现在时．根据从句主语"you"，可知要用动词原形try．故选D．
点评 if引导条件状语从句是时态辨析的一个经常考的题型，因为它的主从句时态使用不同．因此牢牢掌握此种句型很重要．
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