答案:Discrete-point grammar instruction:
Discrete-point grammar instruction conducted by more traditional language teachers has been widely criticized for focusing on forms and ignoring meaning
Meaning-focused instruction :
Findings from immersion and naturalistic language acquisition studies suggest that when classroom of second language learning is entirely experiential and meaning-focused, some linguistic features do not ultimately develop to target-like levels.
	     Focus on form: 论述题回答的时候:上面的两个局限加focus on form和两个变量
            Focus on form is a compromise between the purely form-focused approaches and the purely meaning-oriented.
Although language learning should generally be meaning-focused and communication-oriented, it is still necessary and beneficial to focus on form occasionally.
Two variables concerning the amenability of language elements to focus on form are the relevance of Universal Grammar(UG) and complexity of language structures. If an L2 structure is part of UG, the amenability is high, the less complex structures have higher amenability, but complexity is hard to define and no one knows for sure what exactly is part of UG.