[al:新概念英语（第1册）第7课（听力强化·美）]
[ti:Are You a Teacher?－你是教师吗？
[ar:© 2011 露珠英语工作室]
[by:http://weibo.com/DewEnglishStudio]
[00:00.00]What nationality are you?－你是哪国人？