There is an article written by John Tse " The secret of learning American English". I think it may be helpful for you. You will find this article at http://arcoplaza.com, under e-lerning section, mouse click on "Institute of Artificial Intelligence" banner to get access. Since I was borned in China, I am not going to claimed myself as native english speaker . So, I am not going to offer my acceptance for chinese-english language exchange. You can click onto Language Partners and Language Teachers at the left of this page and email native speakers to set up a time to practise oral English.

Hi there. I can see from your profile that you'd like to speak English like a native speaker. Therefore it is very important that you listen to and practise spoken English as often as possible to improve your English pronunciation. Click onto Knowledge at the left then go to Learn English. Type in your native language as your base language. You can also click onto Language Partners and Language Teachers at the left of this page and email native speakers to set up a time to practise oral English. Click onto Groups at the left and join an English one that you like, to practise your pronunciation. Italki members recommend these sites for learning English: http://www.elllo.org/ http://www.bbc.co.uk/worldservice/learningenglish/ http://www.usingenglish.com/
 http://www.englishpage.com/
 http://www.sharedtalk.com http://www.tolearnenglish.com