Answer:
Breaking a speech into sections helps to identify each particular central idea or theme of such sections and will help to identify the speaker's main point.
Step-by-step explanation:
A speech can be written to either entertain, inform or make arguments about a point.
There are three main parts of a speech and they are the Introduction, Main Body and Conclusion.
The introduction of a speech usually has to do with establishing the credibility of the speaker and why he is an authority on such subject and also gives a good preview of what to come in the main body.
The main body contains the central idea of the speech and full details. Examples are usually given in the main body to illustrate a point.
The conclusion has to do with summarizing key points of the main body and reinforcing particular points.
So, when trying to identify a speaker's main point, breaking the speech into sections help to bring out different supporting to points that leads to the speaker's main point.