阅读理解。 I started my school life at the age of six. At first the school for me, a boy, meant play , play and more play instead of sitting in the classroom and learning   something. However I hanged the way I used to behave at school with the help  of my teachers. I tried my best to do well in  my schoolwork and follow the school rules. Growing and learning were great fun. Every year we had different kinds of  school trips. Not only could we learn many things f'rom them, but also we were  given many projects as homework. It helped us know more. At the same time,we made many good friends. In Grade 8,I won prizes in drawing and English speech competitions. When I was in Grade 9,I realized that l should give all my attention to studying to get into senior middle school. Whenever I think of my school life,I feel very happy and I think in everybody's school life there are many ups and downs that influence his life. School is a place where all of us learn to care and share.'School' is not just a place,but a large building made up of rules, knowledge and love.I think in everybody's success,    school plays a key(关键)role.I can describe my school in 'Three Ss'. They   are: Small, Sweet and Simple. My school was the best and will always be the best. 1.When did the writer start to go to school? 2.Who helped the writer change the way he used to behave at school? 3.What does the writer think of the school trips? 4.What does the writer think plays a key role in everybody's success? 5.The writer describes his school in'Three Ss'. What are they?