metathesis

简明释义

英[məˈtæθəsɪs]美[məˈtæθəsɪs]

n. 音位转换；置换作用；交换；[医] 病变移植

复 数 m e t a t h e s e s

英英释义

单词用法

同义词

反义词

例句

1.Several kinds of ruthenium - catalyzed organic reactions were reviewed: hydrogenation, oxidation, isomerization, metathesis.

综述了钌催化剂催化的主要几类有机合成反应，包括氢化、氧化、异构化、复分解。

2.Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.

关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。

3.Robert H. Grubbs, an American chemist, was born in Kentucky in 1942. In 2005, he received the Nobel Prize in Chemistry for his work on olefin metathesis.

罗伯特·格拉布，美国化学家，1942年出生于肯塔基州，2005年因“烯烃复分解反应”的研究而获得诺贝尔化学奖。

4."The lecture will briefly discuss the metathesis reaction and show why the Nobel committee chose to call it an example of" Green chemistry.

本演讲概括讨论复分解反应，并且展示为什么诺贝尔委员会把该反应称为“绿色化学”的范例。

5.Two words form a "metathesis pair" if you can transform one into the other by swapping two letters; for example, "converse" and "conserve".

两个单词，如果其中一个通过调换两个字母位置就能成为另外一个，就成了一个『交换对』。

6.Metathesis reaction is not only one of the major reactions in secondary school chemistry teaching, but a typical REDOX reaction.

置换反应是中学化学中的主要反应，也是典型的氧化还原反应。

7.Polydicyclopentadiene (PDCPD) is a novel engineering material synthesized by reaction injection molding (RIM) method and such reaction mechanism is ring-opening metathesis polymerization.

聚双环戊二烯是采用反应注射成型工艺合成的一种性能优良的新型工程材料，是通过开环易位机理形成的聚合物。

8.What is assimilation, dissimilation and metathesis?

什么是同化、异化和换位？

9.The phenomenon of metathesis can lead to interesting changes in the pronunciation of words over time.

随着时间的推移，音位倒置现象可能导致单词发音的有趣变化。

10.Children often exhibit metathesis when learning to speak, such as saying 'aks' instead of 'ask'.

儿童在学习说话时常常表现出音位倒置，例如说'aks'而不是'ask'。

11.In some dialects, metathesis is common, resulting in unique local pronunciations.

在某些方言中，音位倒置是常见的，导致独特的地方发音。

12.The word 'comfortable' is sometimes pronounced with metathesis as 'comfterble'.

单词'comfortable'有时会被发音为'comfterble'，这是一种音位倒置。

13.In linguistics, metathesis refers to the transposition of sounds or letters in a word.

在语言学中，音位倒置指的是单词中声音或字母的转置。

作文

Language is a dynamic and ever-evolving entity, constantly shaped by the cultures and societies that use it. One fascinating phenomenon within linguistics is known as metathesis, which refers to the transposition of sounds or letters in a word. This process can lead to interesting changes in pronunciation and meaning, highlighting the fluid nature of language. A classic example of metathesis is the transformation of the word 'ask' into 'aks.' This alteration may seem trivial, yet it underscores the way language evolves over time and how different communities adapt their speech patterns.The occurrence of metathesis is not limited to spoken language; it can also be observed in written forms. For instance, the word 'comfortable' is often pronounced as 'comfterble' in casual conversation. This simplification illustrates how speakers tend to streamline complex words for ease of communication. Such changes can sometimes confuse language learners who may not be familiar with the standard pronunciations.Moreover, metathesis can have implications for language teaching and learning. Educators must be aware of these linguistic shifts to help students navigate the complexities of English pronunciation. Understanding that metathesis occurs naturally can encourage learners to embrace the variations in language rather than view them as errors. This perspective fosters a more inclusive approach to language education, recognizing that different pronunciations can coexist within a single language.Additionally, metathesis can be a source of creativity in language. Poets and writers often play with sounds and structures to create new meanings or evoke particular emotions. The intentional use of metathesis can add a layer of depth to literary works, inviting readers to engage with the text on multiple levels. For instance, in a poem, a writer might alter a familiar phrase through metathesis to challenge conventional interpretations and provoke thought. In the realm of historical linguistics, metathesis provides insight into the evolution of languages. By studying instances of sound transposition across different languages, linguists can trace the development of phonetic systems and understand how languages influence one another. This research contributes to our understanding of language families and the relationships between various languages.In conclusion, metathesis is an intriguing aspect of language that reflects its dynamic nature. From everyday speech to literary expression, the transposition of sounds and letters offers a glimpse into the evolving tapestry of human communication. By embracing the concept of metathesis, we can appreciate the richness of language and its ability to adapt and change over time. As we continue to explore the intricacies of language, recognizing phenomena like metathesis will enhance our understanding and appreciation of the words we use every day.

语言是一个动态且不断发展的实体，始终受到使用它的文化和社会的影响。在语言学中，有一种迷人的现象被称为metathesis，指的是单词中声音或字母的转置。这个过程可能导致发音和意义的有趣变化，突显了语言的流动性。metathesis的经典例子是“ask”一词变成“aks”。这种变化看似微不足道，但它强调了语言随时间演变的方式，以及不同社群如何调整他们的言语模式。metathesis的发生不仅限于口语；在书面形式中同样可以观察到。例如，“comfortable”这个词在日常对话中常常被发音为“comfterble”。这种简化说明说话者倾向于为了交流的便利而简化复杂的单词。这种变化有时会让语言学习者感到困惑，因为他们可能不熟悉标准的发音。此外，metathesis对语言教学和学习也有影响。教育者必须意识到这些语言变化，以帮助学生应对英语发音的复杂性。理解metathesis自然发生的事实，可以鼓励学习者接受语言中的变异，而不是将其视为错误。这种观点促进了更具包容性的语言教育方法，承认不同的发音可以在同一种语言中共存。此外，metathesis也可以成为语言创造力的来源。诗人和作家常常玩弄声音和结构，以创造新的意义或唤起特定的情感。故意使用metathesis可以为文学作品增添深度，邀请读者在多个层面上与文本互动。例如，在一首诗中，作者可能通过metathesis改变一个熟悉的短语，以挑战传统的解释并激发思考。在历史语言学领域，metathesis为语言的演变提供了见解。通过研究不同语言中声音转置的实例，语言学家可以追踪语音系统的发展，并理解语言之间的相互影响。这项研究有助于我们理解语言家族及各种语言之间的关系。总之，metathesis是语言中的一个引人入胜的方面，反映了其动态特性。从日常言语到文学表达，声音和字母的转置为我们提供了人类交流不断演变的丰富画卷。通过接受metathesis的概念，我们可以欣赏语言的丰富性及其随时间的适应和变化。当我们继续探索语言的复杂性时，认识到像metathesis这样的现象将增强我们对日常用词的理解和欣赏。