Since I haven't read the novel, I would say the general purpose of telling dreams is to share your vision or special event that happened in your imagination. The ability to remember dreams is really good, because most people will forget. While you can tell dreams, try see if you can still visualise the dream. Some dreams can be in black and white, and some can be in colour. Dreams have no limit, they take you to your own little world.
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".
b)It is to persuade people to join the gym.
The text begins with a description of the different things that the gym has to offer. It then goes on to specifically address the audience by using the word "you" and listing the hours that the gym is open for the audience's convenience. The text then discusses why the new gym is better than other gyms and continues to list the features that it thinks will be appealing to the people. The text ends with an incentive for people to join the gym before the end of the month. While there are details about a gym, the reason behind those details is to persuade people to sign up. The text does not give specific instructions about how to sign up or why exercise is important.
