Listening skills are different from reading skills because speech is different from writing. Below are some of the main ways speech is different from writing. The biggest difference between speech and writing is that speech consists of sounds. This is very important, because processing the sound adds a whole new set of skills that are not necessary for reading. You must also know how the sounds change in fast speech.
Fast pronunciation is very different from the dictionary form of the word.
The English sound system varies from place to place, and from speaker to speaker. Speech usually consists of idea units. Sometimes idea units are complete sentences, but sometimes they are not. Written language is usually more correct and polished. Speech contains many pauses and hesitations.