Below you will find several links that will provide you with that extra helping hand you might need to write your speech. Explore everything you have available to you to ensure your speech content and delivery is well balanced.
The one about how famous orators have used language features for specific effect is particularly helpful!
10 Famous Speeches and what you can learn from them (this is the awesome one!!):
The 1.6 StudyIt Guide:
NZQA 1.6 Exemplars: