# unprecedented **URL:** \ **Category:** 英语词汇\ **Created:** [October 7, 2021, 3:08am UTC](https://eijil.com/t/topic/239 "2021-10-07T03:08:10Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [October 7, 2021, 3:08am UTC](https://eijil.com/t/topic/239/1 "2021-10-07T03:08:10Z")
词性：adj. 音标： [ʌnˈpresɪdentɪd] 释义：史无前例的，空前的 Something that is _unprecedented_ is not known, experienced, or done before. If you’ve never gone on a family beach vacation but you’re planning one now, you could refer to it as an _unprecedented_ decision. The root of this word is _precedent_, a noun referring to something done or said that is used as an example to be followed in the future. In law, a _precedent_ is a legal decision that is used as a standard in future cases. So the adjective _unprecedented_, meaning “having no precedent,” was formed from the prefix _un-_ “not,” the noun _precedent_, and the suffix _–ed_ “having.” ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [October 7, 2021, 3:10am UTC](https://eijil.com/t/topic/239/2 "2021-10-07T03:10:08Z")
This is a day of unprecedented triumph… for the Russian space program and a crushing blow for America in the race for space. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [October 7, 2021, 3:11am UTC](https://eijil.com/t/topic/239/3 "2021-10-07T03:11:03Z")
Dial it back, officer. This situation is unprecedented. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [October 7, 2021, 3:11am UTC](https://eijil.com/t/topic/239/4 "2021-10-07T03:11:21Z")
lt’s unprecedented. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [October 7, 2021, 3:11am UTC](https://eijil.com/t/topic/239/5 "2021-10-07T03:11:57Z")
That would be unprecedented. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [May 30, 2024, 10:46am UTC](https://eijil.com/t/topic/239/6 "2024-05-30T10:46:27Z")
@Chatbot 你是一个英语教学的大师，你会用通俗易懂的方式给学生讲解各类英语知识，现在请你给我解释下上面帖子中我着重讲解的单词，介绍下这些单词在正式文书和口语中的各类含义，各举几个地道，自然的例子。介绍下这些单词的来历，以及我如何才能记住这些单词呢？ ---
**Author:** ![Chatbot](https://eijil.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@Chatbot](https://eijil.com/u/Chatbot)\ **Post date:** [May 30, 2024, 10:47am UTC](https://eijil.com/t/topic/239/7 "2024-05-30T10:47:02Z")
在帖子中，@Tristan 详细解释了单词 “_unprecedented_”（史无前例的，空前的）的含义。下面我们进一步深入讲解这个单词，介绍其在不同场合中的用法，并提供一些记忆单词的方法。 ### 单词解释：Unprecedented - **词性：** 形容词 (adj.) - **音标：** [ʌnˈpresɪdentɪd] - **释义：** 史无前例的，空前的 #### 正式文书中的用法 在正式文书中，“unprecedented” 通常用于形容某些事件、决策或发展是前所未有的，之前从未发生过的。这个词经常用于强调企业成就、科学发现、政策变化等。 **正式文书例子：** 1. The company reported unprecedented growth this quarter, surpassing all market expectations. > 公司报告本季度取得了空前的增长，超出了所有市场预期。 2. The new technology has led to unprecedented advancements in medical science. > 新技术带来了医学科学空前的进步。 #### 口语中的用法 在口语中，“unprecedented” 可以用于描述任何你觉得前所未有的或者是非常特别的事情。它可以适用于日常生活中的不同领域，以强调异常的情况或事件。 **口语例子：** 1. This kind of weather is unprecedented for this time of year. > 这种天气在这个季节是前所未有的。 2. Dial it back, officer. This situation is unprecedented. > 冷静点，警官。这种情况是前所未有的。 3. That would be unprecedented. > 那将是史无前例的。 ### 单词的来历 单词 “unprecedented” 来自于名词 “precedent”，意思是“先例”或“前例”，在法律中指过去的判例可以作为未来案件的参考。加上前缀 “un-”（表示否定）和后缀 “-ed”，形成了形容词 “unprecedented”。意思就是“没有先例的”，即以前从未发生的。 ### 如何记住 “Unprecedented” 1. **词根记忆法：** 了解其词根 “precedent”（先例），并注意前缀 “un-” 是否定的意思。这样有助于理解整个单词的含义。 2. **联想记忆法：** 想象一些史无前例的事件，比如自己第一次尝试某项新的活动或经历，可以将这些事件与 “unprecedented” 联系起来。 3. **练习造句：** 用这个单词造些句子，尽可能多次使用它，这样有助于加深记忆。例如：This decision was unprecedented in the history of our company. 希望这些解释和例子能够帮助你更好地理解和记住 “unprecedented” 这个单词。如果你有其他单词或问题需要解释，请随时向我提问！