Hello, everyone! My name is [Your Name]. I am very happy to stand here and talk to all of you today. Today, I want to tell you about my favorite animal.

My favorite animal is the panda. Pandas are from China. They are black and white. They look so cute! Pandas like to eat bamboo. Bamboo is their favorite food. Every day, they spend many hours eating. Pandas are very gentle animals. They are quiet and shy.

I think pandas are important because they are rare. There are not many pandas in the world. People are trying to protect them. We should help to save the pandas so that they can live happily in the forest.

Thank you for listening to my speech. I hope you love pandas as much as I do!

This is just an example of a simple English speech suitable for a third-grade student. You can modify it according to your needs.