Chapter 1.Language, Culture and Thought.（1）
(Language, culture and thought interact, each influencing and shaping the others.)
1.Properties of Language(systematic[it is rule governed ]+arbitrary[no logical relationship between words and the objects, actions and concepts these words are used to refer to; onomatopoeic words and compounds are not arbitrary ]+symbolic[language express are symbols]+vocal+ uniquely human +for communication[it is the primary function of language]+ understand and describe the world+ carrier and container of cultural information)