To master a language you must learn FOUR main skills

1) Listening: You have to understand what you hear. 
2) Speaking: You have to be able to speak. 
3) Reading: You must understand what you read. 
4) Writing: You have to know how to write.

It is therefore not strange to say that the more you read, the better you will understand what you read. But also, when you read a lot you will also improve your writing.

This is because whenever you read something, you are passively learning the...