If you like to break things when you are unhappy, then Nanjing Zhonghua Middle School is the school for you.    This term, Nanjing Zhonghua Middle School will build a “stress wall(发泄墻)” to help students who feel unhappy because of schoolwork or other reasons.    “Students can __1__ hit the wall or write on the wall __2__ makes them sad，” said Tao Dehua, a leader at the school.    She said the wall will be built __3__ in a corner, far from the main building.    Tao also said the __4__ of a stress wall started when footprints(脚印) were found on some newly __5__ walls and some school windows were broken.    “These things __6__ because some students feel lots of pressure(压力) from their studies or because they don’t get along very __7__ with other students，” Tao said.    According to a February 16 report on the Xinhua News Agency’s(新华社) __8__， 15 percent of juniors in China are stressed out.    Shen Cuihua, the school’s doctor, thinks visiting the wall can help stressed students to feel __9__.    When under stress, the body gets ready to either run or fight and becomes very serious. Hitting the wall can help __10__ the body and take away stress.    __11__ the stress wall won’t be ready until September, many students are already hoping it can make their lives easier.    “Tests and homework make me sad，” said Liu Yang, a junior 3 girl. “I can’t __12__ to hit the wall. It will help me a lot with my __13__.”    But 15-year-old Liu also said she will only go to hit the wall if no one else is there.    Another girl student who wouldn’t give her name said the wall won’t __14__ for her. “Mainly because it can’t talk，” she said. “I need to talk to someone when I’m sad.”    Wu Yiming, a Nanjing University professor(教授), said building the wall could be __15__.    “Kids who hit the wall could start fighting more with each other，” he said.    语篇解读：本文为说明文。为了发泄不必要的压力，南京中华中学建了发泄墙。本文详细介绍了发泄墙的利与弊，读来令人深思。