Advances in Social Science Education and Humanities Research
Krashen's second language acquisition theory;Business English;Teaching
One of the theories of far-reaching influence in modern language teaching theory is Krashen’s second language acquisition theory. With the gradual deepening of English education, some teaching defects
O’Neill’s tragedy deeply rooted in his own life experience and his family heredity. He is an offspring of Irish immi-grants, his homelessness as a child, his early education in the catholic school and his later break with religion, his foreign expedi-tion, life on the sea and his three marriages all influenced his life and his career and his theme decisively.