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Ôö\n¢ÙJakobson\u0027s view\nFor Jakobson, language is above all, as any semiotic system, for communication. He established a well-known framework of language functions based on the six key elements of communication, namely: \nreferential (to convey message and information),\n\npoetic (to indulge in language for its own sake),\n\nemotive (to express attitudes,feelings, and emotions), \n\nconative (to persuade and influenceothers through commands and entreaties),\n\nphatic (to establish communion with others) and \n\nmetalingual function (to clear up intentions,words and meanings).\n\n1ÑſƲ¼Ñ·µÄ¹ÛÆ·\nÑſƲ¼Ñ·ÈÏΪ£¬ºÍÈκηûºÅϵͳÑù£¬ÓïÑÔÊ×ÏÈÊÇΪÁ˽»Á÷¡£ËûÔÚ½»Á÷ϵÊýµÄÁù´óÒªËصĻù´¡Ö®ÉϽ¨Á¢ÁËÒ»Ì××ÅÃûµÄÓïÑÔ¹¦ÄܵĿò¼Ü£¬¼´£ºËùÖ¸¹¦ÄÜ(´«´ï±¸Ï¢)£¬Ê«Ñ§¹¦ÄÜ(ÏíÊÜÓïÑÔ×ÔÉíµÄÀÖȤ)£¬Çé¸Ð¹¦ÄÜ(±í´ï̬¶È¡¢¸Ð¾õºÍ¸ÐÇé)£¬Ò⶯¹¦ÄÜ(ͨ¹ýÃüÁîºÍ¿ÒÇóȥ˵·þºÍÓ°ÏìËûÈË)£¬º®êѹ¦ÄÜ(ÓëËûÈ˽¨Á¢½»Á÷)£¬ºÍÔªÓïÑÔ¹¦ÄÜ(ŪÇåÒâͼ¡¢´ÊÓïºÍÒâÒå)¡£\n\n¢Ú Halliday\u0027s view\nHalliday put forward a theory of metafunctions of language,including ideational, interpersonal,and textual functions.\n\nIdeational function: It refers to the fact that language has the function to convey new information, to communicatea content that is unknown to the hearer.\n\nInterpersonal function: It refers to the fact that language has the function to embody all uses of language to express social and personal relations. This includes the various ways the speaker enters a speech situation and performs a speech act. \n\nTextual function: It refers to the fact that language has mechanisms to make any stretch of spoken or written dis- course into a coherent and unified text and make a living passage different from a random list of sentences.\n\n\n¢Úº«ÀñµÂµÄ¹Ûµã\nº«ÀñµÂÌá³öÓïÑÔÔª¹¦ÄܵÄÀíÂÛ£¬¼´£º¸ÅÄÄÜ¡¢È˼ʹ¦ÄܺÍÓïƪ¹¦ÄÜ¡£\n¸ÅÄÄÜ£ºÖ¸ÓïÑÔ¾ßÓбí´ïеÄÐÅÏ¢»òÊǸøÌý»°Õß´«µÝÒ»¶¨µÄδ֪ÄÚÈݵŦÄÜ¡£\nÈ˼ʹ¦ÄÜ£ºÖ¸ÓïÑÔÄÜʹ˵»°Õß³ä·ÖÔËÓÃÓïÑÔÀ´±í´ïÉç»áºÍ¸öÈ˵ĹØϵ£¬°üÀ¨Ëµ»°Õß½øÈëÓïÑÔÇé¾³ºÍʵʩÑÔÓïÐÐΪµÄ·½Ê½¡£\nÓïƪ¹¦ÄÜ£ºÖ¸ÓïÑÔÖдæÔÚ×ÅÒ»ÖÖ»úÖƽ«¿ÚÍ·»òÊéÃæµÄ»°Óï×éÖ¯³ÉÁ¬¹áͳһµÄÓïƪ£¬ÕâÖÖ»úÖÆʹʵ¼ÊµÄÓïÑÔÇø±ðÓÚһϵÁÐËæÒâµÄ¾ä×Ó¡£¡£