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Unless he _______, he _____the test.
A.study hard , will pass B.will study hard , passes
C.studies hard, will fail D.doesn’t study hard, will fail
C

试题分析:如果他不努力学习,他考试就会不及格。结合语境可知本句主句描述的是将来发生的动作,故用一般将来时态。当主句描述将来动作时,条件状语从句中用一般现在时态表示将来动作,结合语境可知选C。
点评:英语中的时态主要是借助于时间状语与上下文语境来进行判断。解答此类题型,首先要注意句子中的时间状语,如果没有则要通过分析上下文,结合语境来判断句子的时态。英语疑问句中一般具有时态上的对应关系,注意结合这一特点进行区分。英语状语从句的时态与主句有比较紧密的联系,若主句为一般将来时,时间和条件状语从句通常要用一般现在时表示将来,而不能直接使用将来时态。
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