My favourite colour is blue.I have many blue thinks.The curtain in my bedroom is blue.And my quilt is blue，too.I also have a blue toy cat.I like it very much.Every day I ride my bike with my blue bag to school.Do you know why I like blue？Because the sky is blue.The sea is blue.When I look at the the sea，I’m quiet and happy.Our earth also looks like a big blue ball.It’s the home of the people.I hope the world is blue and peaceful forever.