....while i am reading

when i am reading a book, sometimes i do not understand the way author talk about. it is difficult for me to read a English book. vocabulary and logical are the big problems for me. when i look up at dictionary, there are too many different means in one word. sometimes author says somethings that are funny or terrible, but i do not understand exactly author means. i usually read a book at my room.therefore, it is hard for me to focus on the reading.