Hello! Everybody. My name is Jenny. I’m a student of a middle school. I have some hobbies.  I like eating, especially those delicious food.  And I like reading books. I can get a lot of funs from them. But I don’t like doing sports. I think it’s very tired for me to do that.
  ( S1,2:  Jenny, Shall we play volley this afternoon. There’s no lessons in the afternoon.
   J:     Thanks. But I have something to do. )
  (S 3:   Jenny.  I’m so bored.  Let’s play table tennis in the evening.  What ? You can’t? Oh,  Don’t worry. I can teach you.
   J:    Sorry. I like being quiet.)
   
    Last Sunday, my cousin came to my home to visit me.
A:  Oh, Jenny! What’s wrong with you? Look at you in the mirror. You’re so fat now.
B:  I know. I know. What can I do?
A:  You really should do more exercise. Or you will get fatter and fatter.
B:  Oh, my dear. But which kind of sport can I join? How about running?
A:  Running? It’s a hard sport, and it’s a bit dull.
B:  What do you think of playing football?
A:  Sounds good. But it also takes you much energy. I don’t think you are suit for that.
B:  How about climbing, swimming?
A:  Good ideas.  But do you have so many time to do that? You have to find a mountain, you have to find a swimming pool.
B:  What can I do? I have no ideas.
A:  Why don’t you play table tennis or play badminton ? It’s easy for you to do such exercise. It won’t make you very hard. And it’s interesting , you will enjoy it. To find a fellow is not a difficult thing.  
B:  You’re so kind. Thank you.
A:  But remember! You should persist in doing it every day. And don’t eat too more.

no lessons需要加s吗？

There is no lesson......or There are no lessons.......

fun是不是应该是不可数名词

我看现在提来不及了，他们交了文章了吧。我想帮他改的，看他不在网上了，所以算了。

OK! There's no lesson.    Sorry:)

O(∩_∩)O哈哈~