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题目
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Why hasn’t he come?________ on time, we would have to put off the trip.
A.If he doesn’t comeB.If he will not comeC.If he didn’t comeD.If he wouldn’t come

答案
C
解析

试题分析:句意为:他为什么还没来?如果他不来的话,我们就只好将旅行的时间往后延。
If引导的虚拟语气,如果从句为现在时,则使用虚拟语气时用一般过去式;如果从句为过去式,则使用虚拟语气时用过去完成时;如果从句为将来时,则使用虚拟语气时用一般过去式或should+动词原形/were+ to do .根据主将从现的原理,if引导的真实条件句为现在时,则从句用虚拟语气时用一般过去式,故选C
考点:考察if引导状语从句的用法
点评:if引导的虚拟条件从句一直是考察的重点,考生在作答作答时,一定要认真区分if引导的是真实还是非真实条件状语从句,从而正确判断。
核心考点
试题【Why hasn’t he come?________ on time, we would have to put off the trip.A.If he d】;主要考察你对句法等知识点的理解。[详细]
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