You can look at the words in front and behind it, because they refer to this big word. You may find a synonym of the word or a close reference. So for example in this sentence: I was excited and ambitious to learn about cars today. So this is a easy example. You can use exited to define ambitious if you dont know what ambitious means.
If it's just a random thesis:
Topic: Dog Fights
Thesis: Dog fights should be illegal, since they are a cruel way to abuse dogs for profit.
Opposing Thesis: Dog fights are entartaining, and should be continued.
Peeta doesn't want to be 'a piece' in the Hunger Games, and he wants to die the same person he is now. He doesnt want the Games to change him.
Answer:
In Mauritania, slaves live in tents
Explanation: