Name five theories of second language acquisition.
【正确答案】：(P19-23)
(1)The habit-formation theory.
(2)The hypothesis of linguistic universals.
(3)The acculturation theory.
(4)The discourse theory.(1)
(5)The monitor theory.
【评分标准】全题共5分,答案含五点。如答错或答案不完整，酌情扣分。如表述有语法、拼写标点等问题,也酌情扣分,但全题在这方面的扣分不得超过1分