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1、notuntil结构重要程度： 难易程度：(2017天津改编) I had an early start at the age of nine with a role in a 1990s TV series, but it wasnt _ (直到) I finished film studies _ I pursued my career as an actress.【参考答案】until; that【拓展延伸】1. not until的用法：(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+。(2)notuntil
2、句式的强调句型为It is/was not untilthat。It was not until yesterday that I noticed it. 直到昨天我才注意到此事。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. until直到，表示某一种行为一直持续到某一时间。用在肯定句中，句子的谓语动词必须是可延续性的；notuntil 直到才，表示直到某一时间，某一行为才发生，之前该行为并没有发生。用在否定句中，主句中的谓语可以是延续性动词，也可以是短暂性动词。I studied
3、English until 9 oclock last night. 我昨晚学英语一直学到9点。I did not study English until 9 oclock last night. 我昨晚直到9点才学英语。【特别注意】1. 在notuntil句型中，主句中的动词均为短暂性动词，如leave，start等。而在until的肯定句型中，主句的谓语动词一定要用延续性动词，因为until作为连词和介词意为up to the time when; up to直到时。2. until只连接表示时间的短语和从句，不能用于地点和数量。We walked until the edge of th
4、e forest.(误)Our classroom can hold until fifty students.(误)1. 一句多译直到下周才开运动会。_等到湖里的鱼全死光了，村民们才意识到污染是多么严重。_2. (2013天津)It was not until near the end of the letter _ she mentioned her own plan. A. thatB. whereC. whyD. when1. The sports meeting will not be held until next week.Not until next week will the sports meeting be held.It is not until next week that the sports meeting will be held.The villagers didnt realize how serious the pollution was until all the fish died in the river.Not until all the fish died in the river did the villagers realize how serious the pollution was.not until结构的用法：_
