题干

2010年温哥华冬奥会上,王蒙一人夺得500米、1000米、3000米接力三块金牌,在500米短道速滑中,以43秒048的成绩蝉联冬奥冠军,三破冬奥会纪录,为中国队在该项目上实现三连冠!王蒙和冰刀的总质量是60kg,每只冰刀与冰面的接触面积为15cm2(g取10N/kg)

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A Father and a Son

    Passing through the Atlanta airport one morning, I caught one of those shuttles that take travelers from the main terminals (航站楼) to their boarding gates. Not many people consider them fun, but on this Saturday I heard laughter. At the front of the first shuttle were a man and his son.

    We had just stopped to let off passengers, and the doors were closing again. “Here we go! Hold on to me tight!” the father said. The boy, about five years old, made sounds of happiness.

    “Look out there!” the father said to his son. “See that pilot? I bet he's walking to his plane.” The son turned his neck to look forward.

    As I was early for my flight, I decided to go back to the terminal. Where I went back again, I saw that the man and his son had returned too. I realized then that they hadn't been heading for a flight, but had just been riding the shuttle.

    “I want to ride some more!”

    “More?” the father said, mock-angry but clearly pleased. “ You are not tired?”

    “This is fun!” his son said.

    “All right.” the father replied, when a door opened, we all got on.

    There are parents who can afford to send their children to Europe or Disneyland, and there are parents who live in million-dollar houses and give their children cars and swimming pools, yet something goes wrong.

    “Where are all those people going, Daddy?” the son asked.

    “All over the world,” came the reply.

    The other people in the airport were leaving for far destinations (终点) or arriving at the ends of their journeys. The father and son, though, were just riding this shuttle together, making it exciting, enjoying being together.

    So many troubles in this country. So many questions about what to do. Here was a father who cared about spending the day with his son and who had come up with this plan on a Saturday morning.

    The answer is so simple: parents who care enough to spend time, and to pay attention and to try their best. It doesn't cost a cent, yet it is the most valuable thing in the world.

    The shuttle picked up speed, and the father pointed something out, and the boy laughed again.