我们将要运用的语言功能：
1. 命令和请求( command and request)
Correct your spelling mistakes.
Would you please speak more slowly?
2.语言交际困难（Difficulties in language communication）
Pardon? I beg your pardon ? I don’t understand
Could you say that again, please? Sorry I can’t follow you.
Could you repeat that, please?
How do you spell it, please?
