What I want

is to find a middle level english reading material. I get an american friend's help. He may need me to find the material by myself.

 

My goal is that I can understand the content and re-explain it to other people with my own language. My weekness is speaking out, not only on the pronunication, but also on the translation from Chinese to English. Sometime I use NPR to practice, now I need find a systemic material.

 

Thanks