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not...until的基本含义是直到...才,在...以前不。通常与非延续性动词连用,当其位于句首时,句子要倒装。
一.not...until基本含义是“直到...才”。
I did not go home until my mother called me.
我直到我妈妈打电话给我才回家。
Not until Father came back did we begin to have supper last night.
昨晚直到父亲回来,我们才开始吃晚饭。
二.not until的倒装与强调结构,not until通常与非延续性动词连用,强调主句所表示的状态或情景从until所表示的时间才发生,主句必须是否定句。
1.当Not until位于句首时,句子要倒装。其结构为:Not until+从句/表时间的词+助动词+(主句)主语+谓语
(1)Not until the teacher came in did the students stop talking.
直到老师进来学生们才停止讲话。
(2)Not until next week will the sports meet be held.
直到下周才开运动会。
2.not until的强调结构为:It is / was not until+从句/表时间的词+that
(1)It was not until the teacher came in that the students stopped talking.
(2)It is not until next week that the sports meet will be held.
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