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I don’t know if it ____tomorrow .We ____ shopping if it ________.
A.rains ; will go ; doesn’t rainB.will rain ; will go ; rains
C.will rain ; will go ; doesn’t rainD.rains ; goes ; won’t rain
C

试题分析:根据语境可知此题重点考查if引导的条件状语从句和if引导的宾语从句的时态的一致的问题。前者主句要用一般将来时,从句常用一般现在时;后者从句的谓语动词要有主句的谓语动词来决定。主句用一般现在时,从句可以用所需要的任何时态,若主句要用一般过去时,从句要用相应的过去时态。本句的含义是我不知道明天是否下雨,如果不下雨我们就去购物。根据此意我们可知前半句是宾语从句后半句是条件状语从句,tomorrow是明天,是将来时间,主句的谓语动词是don’t know,是一般现在时,故从句要用一般将来时;故选C。
点评:if引导的条件状语从句表示“如果”的意思,引导宾语从句表示 “是否”。根据此意可知他后面到底是宾语从句还是条件状语从句。然后根据具体语境来判断他的时态。
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