阅读下面的材料，根据自己的感悟和联想，写一篇不少于800字的文章。

    小王，在五平方米的路边小店，卖了二十年的鱼圆，从2008年到现在，他坚持2．5元一颗不涨价，很多人说他古板，太傻，他说这是匠心，值得。而城市的变化太快，早已不见当年的街景，生意也越来越难做，但他坚持用好食材，纯手工的方式做鱼圆。他想把自己的小店坚持开下去，传承几百年。他说，我们的饮食文化可能会逐步改变，但不会消逝，因为那是根深蒂固的东西。

    要求：①选准角度，自定立意；②自拟标题；③除诗歌外，文体不限；④文体特征鲜明。

关于汉族的分布叙述正确的是（  ）
①主要分布在东北和西南②以东部和中部最集中
③主要集中在西北和东南④分布遍及全国

                                                                                  She Walked Through Fire

    On Thanksgiving weekend, the Heffelmire family gathered for a meal at their home. After dinner, the family went down to the finished basement to relax except Charlotte's father, Eric, who was in the garage to fix his truck．

    Around 8 p.m., Charlotte decided to check on her dad. She walked through the kitchen. When she opened the side door to the garage, black smoke rose up into the kitchen. She could barely make out her father lying on his back, trapped under the truck. He'd removed the front passenger-side tyre and raised the truck on a jack（千斤顶）. The truck had slipped off the jack, and now the whole weight of the wheel was on his chest and shoulders．

    Charlotte ran to the front of the truck and struggled to lift it. Eric was still conscious, and he yelled, “You got it! One more try!” She tried again and was able to tip the truck backward just enough for her to pull her dad by the shirt with both hands from under the truck．

    She dragged him across the garage and 20 feet down the driveway. Then she ran back to the garage, which had burst into flames. “I was afraid the car was going to explode,” says Charlotte, so she climbed into the truck, which faced forward, turned the key, and pressed the gas pedal（油门）. The car slowly rolled out, the metal wheel scratching loudly against the concrete．

    Safely on the driveway, Charlotte stopped the truck and ran back to the basement. “There's a fire! Everybody get out!” she yelled as she picked up her three-month-old niece and ran out. Outside, she handed the baby to her mom, and then ran around to the burning garage. She picked up a garden hose（水管）and sprayed the fire while calling 911．

    A few minutes later, firefighters and an ambulance arrived. Charlotte was treated for second-degree burns on both her feet and face. Her dad had injuries on his chest and shoulders, as well as minor burns on his face. The garage and the house were damaged but the family survived．

    The Heffelmires are staying in an apartment while their house is rebuilt. “Charlotte is a remarkable kid,” says her dad. Charlotte, however, simply says, “ I was saving my family and my house. I wasn't going to let my dad die.”

关于x的方程 ＝a−1无解，则a的值是____。