吊炸天1234
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.
wangbaoxin888
not...until的基本含义是直到...才，在...以前不。not...until的三种用法有：基本结构、强调句结构、倒装句结构。
基本结构：not主句+until+从句
例句：
We did not get off the busuntil it stopped.
直到车停了，我们才下了公交车
强调句结构：It is / was not until+从句/表时间的词+that+主句
1、not until 后边一般是时间点，如：
It was not until midnight that it stopped raining. 直到半夜雨才停下来。
It was not until five o'clock in the afternoon that they finished their work. 直到下午五点他们才完成工作。
2、not until 后边也可以是陈述的句子，如：
It was not until he came to China that he realized the great change in recent decades. 直到他来到中国，他才意识到最近几十年的巨大变化。
It was not until he got sick seriously that he realized the value of a healthy body. 直到他生重病，他才意识到一个健康体魄的价值。
3、not until 后边还可跟介词短语，如：
It was not until after Friday that I got his reply. 直到星期五之后，我才得到他的答复。
我们可以注意到，在以上列举的例句中，“It is/was not until .... that 从句”句式中的“that 从句”部分都是采用一般的陈述语序(类似于宾语从句)。时态上一般采用过去时，与 it was 相呼应。
倒装句结构：Not until+从句+倒转的主句（主倒从不倒）
not until 引起的时间状语置于句首时，句子的主谓应部分倒装。由 not until 引导的时间状语从句位于句首时，主句应部分倒装，从句语序不变。
例句：
Not until 1998 did he return to his hometown.
直到 1998 年他才回到家乡.
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.
julielovecat
1. Not until we pointed out their fault to them did they realize it . 直到我们向他们指出了他们的错误，他们才意识到。2. Not until this note from his best friend, another teacher, informed me of hispassing. 直到他最要好的朋友，另一位老师，来信告之他去世的消息时，我一直不知道。3. We'll never find Truth in her entirety, at least not until the Second Coming, andwho knows when that will be? 我们永远找不到完整的真理，至少在第二次到来之前不能，谁知道那将是什么时候呢？
