I get all the words from called Boya Chinese Elementary I which is a very good textbook. Here is the link to download for free: http://vdisk.weibo.com/s/zb0-Lf__hHf4A. And here is the MP3 for the book: http://vdisk.weibo.com/s/zb0-Lf_ZYcgs5 It is designed for beginner to elementary level's students. It covers the most basic and useful words and expressions. This course is especially helpful for students who learn Chinese from this book.