Chapter 4 – Linguistic environment & Input hypothesis
Chapter 4 of the book discusses various topics related to second language acquisition, including first language acquisition, bilingualism acquisition, heritage language acquisition, third language acquisition/multilingualism, linguistic environment, cognitive-interactionism, acculturation model, input hypothesis, comprehensible input, interaction and negotiation for meaning, and output and syntactic processing during production. The chapter begins by discussing first language acquisition, which…