下面句子为什么用的是被动语态was finished而不是过去完成时had been finished
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下面句子为什么用的是被动语态was finished而不是过去完成时had been finished
We are happy to learn that the difficult work was finished through everyone's effort yesterday.
We are happy to learn that the difficult work was finished through everyone's effort yesterday.
第一,这里有具体的时间,有具体时间一般不用完成时.
第二,过去完成时多用于和过去时比较,也就是说要发生在过去的过去才用过去完成时.比如:We were shocked to know that the work had been finished.
第三,主句是we are happy,所以就算是要用完成时也是现在完成时.
在选择时态的时候,一方面要考虑上下文的时态,一方面要注意是否虚拟语气,因为虚拟语气的时态需要倒推的.
第二,过去完成时多用于和过去时比较,也就是说要发生在过去的过去才用过去完成时.比如:We were shocked to know that the work had been finished.
第三,主句是we are happy,所以就算是要用完成时也是现在完成时.
在选择时态的时候,一方面要考虑上下文的时态,一方面要注意是否虚拟语气,因为虚拟语气的时态需要倒推的.
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