这句话是虚拟语气吗Our teachers believe that if we did that,we would concentrate more on our clothes than our studies.“if we did that”,有人说之所以用did,是因为这句话是虚拟语气,请帮我分析下if we did that,we would...

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这句话是虚拟语气吗Ourteachersbelievethatifwedidthat,wewouldconcentratemoreonourclothesthanourstudies.“ifwedid

这句话是虚拟语气吗Our teachers believe that if we did that,we would concentrate more on our clothes than our studies.“if we did that”,有人说之所以用did,是因为这句话是虚拟语气,请帮我分析下if we did that,we would...
这句话是虚拟语气吗
Our teachers believe that if we did that,we would concentrate more on our clothes than our studies.
“if we did that”,有人说之所以用did,是因为这句话是虚拟语气,请帮我分析下if we did that,we would...这个结构.
另,如果把did改为do,把would改为will,即：Our teachers believe that if we do that,we will concentrate more on our clothes than our studies.

这句话是虚拟语气吗Our teachers believe that if we did that,we would concentrate more on our clothes than our studies.“if we did that”,有人说之所以用did,是因为这句话是虚拟语气,请帮我分析下if we did that,we would...
Answer:
提问者这个问题,我想从以下两方面来解释：
一.为什么用did?
在虚拟条件句中,做与现在事实相反的假设,从句谓语did/were ,主句谓语would,could,should+动词原形.根据主句谓语时态"would concentrate",可以反推从句时态,故这里用"did".(这里did是动词的过去式,碰巧这里的动词是"do"）
二.提问者改写的句子是否可行?
分析句子不能只见树木不见森林,此句从大的句构来说一个主从复合句,宾语由宾语从句来充当,
宾语从句内部又含一个虚拟条件句的状语成分.因此能否用提问者改写的句子
首先要判断主从句时态是否一致.
根据"主现从需"（即主句是一般现在时,从句根据需要选择时态）的原则,从时态一致的角度从句可以像提问者那样改写）
其次真实条件句和虚拟条件句的区别
真实条件句中if从句给出的条件是可以实现的,而虚拟条件句中if从句所给出的条件是与事实情况相反的假设
根据句意：我们老师相信如果我们那样做得话,我们会更加关注穿着而不是学习.
单从句意本身来说,可以像提问者那样改写成一个纯条件句,因为这个假设的条件是可以实现的
而用虚拟无非是想表达我们老师从主观上根本不相信我们会那样做,这里只是做了一个与现在事实相反的假设而已

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