a five-minute informative speech

to introduce a play such as sex and city, prison break, etc.

In my opinion, maybe you can introduce a person,a famous person or someone else.Please note it is a informative speech.You know what you shall talk.

You can tell a fable story which is interesting.
Spending some time to choose a proper story is very important.

能引起人注意和兴趣的演讲是 先讲一个短小经典的故事 然后再讨论和总结