it was_back home after the experiment.为什么不选Cit was _____back home after the experiment.A not until midnight did he go B until midnight that he did not go C not until midnight that he went D until midnight when he did not go为什么不选C

it was_back home after the experiment.为什么不选Cit was _____back home after the experiment.A not until midnight did he go B until midnight that he did not go C not until midnight that he went D until midnight when he did not go为什么不选C
it was_back home after the experiment.为什么不选C
it was _____back home after the experiment.
A not until midnight did he go
B until midnight that he did not go
C not until midnight that he went
D until midnight when he did not go
为什么不选C
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it was_back home after the experiment.为什么不选Cit was _____back home after the experiment.A not until midnight did he go B until midnight that he did not go C not until midnight that he went D until midnight when he did not go为什么不选C
这个问题,如果没有上下文,或语境限制,那么,表达的意思就会有所不同,因此,所选答案就会有异.
①如果选B,全句是：
It was 【 until midnight that he did not go 】back home after the experiment.
句意是：实验之后,直到半夜他还没有回家.
②如果选C,全句是：
It was 【not until midnight that he went 】back home after the experiment
句意是：实验之后,直到半夜他才回家.
③区别的关键：
否定对象不同——前者否定从句动词,后者否定全句事件和内容.
因此,没有特定语境,两个答案语法上都可以选,只是【表达意义和强调重点不同】.

你可以把C套进去自己翻译一遍，你会发现这句话译不通。这个句子是测试until的用法，when是对midight的进一步说明。做完实验后，直到午夜他都没有回家。应该是这样！好久没有看这么绕口纠心的题了，和同学讨论下吧！

not until的倒装与强调结构如下：

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+...。如:
①Not until the teacher came in did the students stop talking.直到老师进来学生们才停止讲话。
②Not unt...

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not until的倒装与强调结构如下：

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+...。如:
①Not until the teacher came in did the students stop talking.直到老师进来学生们才停止讲话。
②Not 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+...。
上面两句改为强调句为：
③It was not until the teacher came in that the students stopped talking.
④It is not until next week that the sports meet will be held.

你这题的用法属于not until 的强调结构，所以不选A。fightout的说法没错。

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答案为C
It was/ is not until.... that.... 是个固定的强调句句型
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答案为C
It was/ is not until.... that.... 是个固定的强调句句型
你可以把C套进去自己翻译一遍，你会发现这句话译不通。这个句子是测试until的用法，when是对midight的进一步说明。做完实验后，直到午夜他都没有回家。
not until的倒装与强调结构如下：

1. 当Not until位于句首时，句子要倒装。<...

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答案为C
It was/ is not until.... that.... 是个固定的强调句句型
你可以把C套进去自己翻译一遍，你会发现这句话译不通。这个句子是测试until的用法，when是对midight的进一步说明。做完实验后，直到午夜他都没有回家。
not until的倒装与强调结构如下：

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+...。如:
①Not until the teacher came in did the students stop talking.直到老师进来学生们才停止讲话。
②Not 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+...。
上面两句改为强调句为：
③It was not until the teacher came in that the students stopped talking.
④It is not until next week that the sports meet will be held.

你这题的用法属于not until 的强调结构，所以不选A。fightout的说法没错
这个问题，如果没有上下文，或语境限制，那么，表达的意思就会有所不同，因此，所选答案就会有异。
①如果选B，全句是：
It was 【 until midnight that he did not go 】back home after the experiment.
句意是：实验之后，直到半夜他还没有回家。
②如果选C，全句是：
It was 【not until midnight that he went 】back home after the experiment
句意是：实验之后，直到半夜他才回家。
③区别的关键：
否定对象不同——前者否定从句动词，后者否定全句事件和内容。
因此，没有特定语境，两个答案语法上都可以选，只是【表达意义和强调重点不同】。

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我们今天老师也讲了这道题。。她的答案是C..