i always think read newspaper is the best way to inprove our english .but my many new words i dont know .so it;s difficult  on me .my oral english also is poor

You can find tons of English newspapers online. Some of the most famous are:
http://news.bbc.co.uk/
and
http://www.reuters.com/

Find a teacher through the courses.

My Farsi mentor told me to try to read and translate one sentence of a newspaper per day.

I prefer something that is easy to understand like novels or short articles. Reading a newspaper is the not the only way to improve. It can be stressful to understand and remember the words and phrases we don't really use in spoken English. After all there are a lot of jargons and new words used in a newspaper that makes it really hard to understand, especially for beginners