The different functions of language have different linguistic demands.
And each function has its own typical language structures.
For example, When asking a permission or requesting, functions can be ' Do you mind if I...?', ' Would it be possible for...?', 'Please let me to...;. When wishing hoping, functions can be ' I am hopeful that...' or 'It is my wish' . When warning of conequence, we can say ' Don't do it' or ' You will pay for.... with....'
Language functions have different meaning in the context.
Let me take an instance, When I am doing a harsh work, i can ask my friends or someone "Please give me a hand" for a purpose to seek a help. But if i want to read friend's palm and say "Give me a hand", it's purpose is not seeking an Assistance.
I am not sure whether I understand the topics in this ODB assignment.
I wish I made it..