Could you help: Compare and contrast Beowulf's speech with Sir Gawain's speech.

Look at the purpose of each of those speeches.

Look at the audience for each.
Look at the types of arguments each uses.

Write these things down and then look at them side by side. Then you will be able to compare/contrast. When you have done this and have done your rough copy, please repost and we will be happy to make comments/corrections.