Answer: Zhang Hua is a ninth-grade student of Sunshine Middle School. His family is very rich. He used to spend most of his pocket money on snakes and toys. A Ying computer games. He doesn't work so hard at school. Last summer, he went to a poor village. There, he saw many poor children who couldn't go to school because their families were too poor. That experience had a great influence on Zhang Hua. Now Zhang Hua works very hard at school. He donates most of his pocket money to UNICEF and actively participates in many charitable activities to help people in need. He thinks it is important to help people in need.