Answer:
The best way to write an introduction is to keep it short and to the point, and that usually means stating the resolved (the question being discussed), and stating whether or not you affirm (support) or negate (stand against) that resolved. You can, however, before stating your position, bring up a compelling quote or anecdote about your topic, as long as it is not too long and it supports your message. You may or may not want to mention briefly your main arguments as well, in chronological order.