one possible version：
Dear friends,
Welcome to our school．
I feel it an honor to have the chance to tell you something about our extracurricular activities at school. We have one hour of activities from 6:30 p.m. to 7:30 p. m. from Monday to Friday.
During this period of time students join in various extracurricular activities. Some students read books in the reading room, and some go in for sports on the playground. Students who like singing often sing songs in the theatre hall. Many students surf the Internet in the green net bars on campus to look through useful information. Besides, some do some practice to improve their handwriting and others draw pictures as well. The majority are most interested in sports.
Extracurricular activities not only make our knowledge rich and broaden our horizons, but also build our bodies. They have had our abilities improved. We are also looking forward to our visits to your school.
Thank you!
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