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2000年在德国科隆召开的濒危语言学会议,将语言的濒危程度分为五个等级,其中“濒危的语言”指所有使用者都在40岁以上,而群内青少年都已不再学习使用;“垂危的语言”指只有少数70岁以上的老年人还在使用,而其他成员几乎都已放弃;“灭绝的语言”则失去了所有使用者。语言的消亡与物种的灭绝毫无二致。在过去的一个世纪里,全球有超过750种语言灭绝。2009年2月19日,联合国教科文组织在人类历史上第一次用《全球濒危语言分布图》,有230
The Endangered Languages Conference held in Cologne, Germany, in 2000, classified the endangered languages as five levels, of which “Endangered Languages” means that all users are over the age of 40, and all the young people in the group no longer learn Used; “Dangerous Languages” means that only a few older people over 70 are still using it while other members almost always give up; and “Extinct Language” loses all users. The demise of language is no different from the extinction of species. Over 750 languages have been extinct throughout the world in the past century. February 19, 2009, UNESCO for the first time in human history with “global endangered language distribution map”, there are 230