Reading and the communication process

★Explain the model of communication process in Figure I on your own word
Writer encode with text what he or she want to speak, and then reader read the text.
Reader decode the text and understand meaning or message.

★What makes you English reading difficult? Analyze your reading process yourself and try to find your barriers to fluent reading.

First, difficult vocabulary is the one of the reasons. Also, complex stucture and unfamiliar topic are the reasons. When I have no background knowledge, English reading makes me tough.