Grammar Dependency and Non Grammatical Sequenced Arrangement in Language Acquisition

Basic characteristics of grammar such as its abstractness,generativeness,hierachy,etc.are concluded from an academic point of view and never touch the nature of grammar.The nature of grammar,namely the essence of grammar,is the idiomatic expressions of a language used by people.Grammar dependency,as an essential characteristic of grammar,which means the internalization of grammar in human brain and its non strippingness from linguistic reality,has long been ignored.It is the short of understanding of the essence of grammar and grammar dependency that cause the biase of learning strategy and focus of language learners,which is inconsistent with their original learning goals.The non grammatical sequenced arrangement in first language acquisition should have more guidance in language acquisition theories and pactice.