First of all, without reading you can't even speak logically. It is also ridiculous that you don't read but learning english. Just for speaking? In my opinion sooner or later you have to read and try to comprehend.
There are variety of benefit for reading. If you read, you can widen your vocabulary.With consistent reading you may speak logically and write easily for anyting. And also if you read aloud per day, your pronouncation will be improved and be used to the language. Reading can improve your comprehension. With reading many books you become wiser,because the only method of learning from past which is called history is reading.