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2010江西改编题 33.Not until he ____ his home ______ to know how i

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2010江西改编题
33.Not until he ____ his home ______ to know how important the family was for him.
用leave;began的正确形式填空
2010江西改编题 33.Not until he ____ his home ______ to know how i
Not until he left his home did he begin to know how important the family was for him.
句意是:直到他离开家,他才知道家庭对他有多重要.
not ...until 的倒装句型
Not until he left his home 否定含义状语在句首,句子部分倒装,所以后面有 did.
不倒装的话 是这样的
he didn't begin to know how important the family was for him until he left his home.
left 和know 两个都是非延续性动词不需要用完成时.从句用一般过去时,表示在他意识到的是家庭对他很重要,不论是过去还是现在,即使是现在,依然是重要的,因此从句与主句时态一致.
再问: 如果是延续性动词呢
再答: not...until... 如果是过去的,可以都用一般过去时 只是如果是单独的until,主句要求是延续性动词 否定的not..until,主句动词延续性和瞬间性都是可以的