Me: Can you get me a drink?
Sister: No.
Me: Why?
Sister: Cause I can't be bothered.
Me: Why?
Sister: Because I am on my bed and can't be bothered to get up.
Analysis:
This piece of text is quite formal as it does not contain any slang, the short sentences are effective as they allow the speaker to get straight to the point. However it could also be informal as it contains a word that has been shortened; "cause". This could suggest that the two speakers have a close relationship as even when they shorten words the other speaker would respond as they would normally. The purpose of the shortened word could be to give a quicker response, although it could also be used to show the change of the tone and emotions as the speaker goes from "Cause I can't be bothered." To "Because…I can't be bothered…", from this we can deduce that the speaker goes from being a little annoyed to being angry.
The use of interrogatives could suggest that the questions have been asked with a desired answer for example in the question "Can you get me a drink?" the speaker would have wanted the answer to be a 'yes' and when the given answer was a "no" the speaker then asked "why?" to get the person to justify why they said this. The "Can you" in this question has an upward inflection which means that the tone of the voice rises as this is being said. The reason for this upward inflection could be to emphasise the politeness in the question increasing the possibility of the person actually doing what you ask them to do.
The fact that this text has no fillers or discourse markers could suggest that the speakers are comfortable with each other therefore do not have to think carefully about what they say which means that have no need for fillers and do not need to grab the other speakers attention therefore do not use any discourse markers.
This text is context independent as it clearly states that the conversation is about a drink. As this is a spoken conversation it is immediate/spontaneous, this means that this conversation has not been previously planned or revised. As this is spoken language the emotions are shown clear through the use of tone, this could be seen through the word 'no', this is a dominant word therefore the tone given off by this could be, annoyed, infuriated or frustrated. The fact that this is a spoken conversation stated that this is socially-oriented and not message-oriented.