How does Hymes differentiate communicative competence from competence put forward by Chomsky?

How does Hymes differentiate communicative competence from competence put forward by Chomsky?

1） Communicative competence is term coined by Hymes in order to contrast a communicative view of language with Chomsky’s theory of competence. （2分）2）Chomsky claimed that every normal human being was bom with LAD， which includes basic knowledge about the nature and structure of human language.（2分）3）That is why children develop competence in their first language in a relatively short time.（2分）4）According to Chomsky， the focus of linguistic theory is to characterize the abstract abilities speakers possess that enable them to produce grammatically correct sentences in a language. （2分）5）Communicative competence refers to the ability not only to apply the grammatical rules of a language in order to form grammatically correct sentences but also to know when and where to use these sentences and to whom. （2分）