这篇文章大意讲的是什么啊 不少于30字

这篇文章大意讲的是什么啊 不少于30字
A school year was over and the summer holidays began .Peter got home happily. He showed his school reports to his m . After reading his reports, the woman was h ,too. Her son took f place in the exams. ―Well done, my son!‖ said the woman. ―I‘ll cook two eggs for you on your birthday!‖ ―Didn‘t you r anything?‖ asked the boy. The woman thought for a moment and then remembered she hand promised(许诺) she was going to t Peter to the zoo if he did well in the exam. The nine-year –old boy had never seen a real t .She would not m him unhappy though the family was really poor. She borrowed some m from her friends and started early in the morning. Their train a in Moscow at eleven. The boy stood in front of the tigers-cages and would not leave. ―Let‘s go to see the moneys ,dear.‖ Said the woman. ―You spent here long enough watching the tigers.‖ ―No, mummy. I‘m w the bananas and milk here.‖