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c variation .......... 27 
4.2 Catchword variability in meaning ........ 29 
4.2.1 Semantic generalization variation .......... 29 
4.2.2 Semantic holographic variation..... 31 
4.2.3 Catchwords generating in contexts ........ 33
Chapter 5   Catchword Negotiability in Dynamic Adaptation of Time and Space ... 37
5.1 Dynamic adaptation of time in catchwords ......... 38 
5.2 Dynamic adaptation of space in catchwords ....... 45 

Chapter 5 Catchword Negotiability in Dynamic Adaptation of Time and Space 

Newton’s absolute space-time viewpointholds that natural space and time as constants, the  external  conditions  of  movement  of  objects.  However  Einstein’s  relativity  theory develops it and considers that space and time cannot exist independently separating from objects  of  the  material  world.  Unlike  natural  space-time,  social  time  and  social  space belongs to the category of social practice and has constitutive significance for social life, social behavior and social processes  (Jing  Tiankui&  He  Jian,  2012). Catchwords grow out of space and time dimensions of social life, and diffuse through social behaviors and social events,  and  finally  fade  away  in  the  process  of  social  development.  Therefore,  it  is reasonable and necessary to discuss the development and evolution progress of catchwords under the framework of space and time. Language variability provides language users a variety of possibilities, while language negotiability, which is manifested in the realization process of dynamic adaptation, is not limited to the principles of communication and selections on communication strategies, but a  constantly  and  effectively  interaction  between  communicators  and  even  between communicators  and  the  society  under  the  framework  of  space  and  time,  which  greatly promoted the progress of man as well asthe society. Catchwords exist in each node intersected by space and time. As time flies and social history  leaps  great  forward,  catchwords  accelerate  their  replacement.  Moreover,  coupled with  the  rise  and  popularity  of  the  network,  new  platform  appears  to  generate  and  to disseminate  catchwords,  catchwords  in  different  regions  quicken  their  velocity  of circulation.  
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Conclusion 

Catchwordsare  a  subsystem  of  language,  and  are  a  kind  of  preferred  language  in exchanging with others. Thus, there will be various reasons for its existence. Catchwords are  duly  active  in  verbal  communication  for  the  reason  that  popular  meaning  attached  to them makes them adapt to different context properly, which is exactly similar to situations that  creatures  adjust  themselves  to  ev本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。