试述游标卡尺的读数方法。
参考答案：使用游标卡尺时，应先弄清游标读数值和测量范围，游标尺的“0”是读数的基准，读数时要同时看尺身和游标的刻线，两者配合起来读。
具体步骤如下
(1)读整数——读整数是看游标“0”线左边，接近“0”线靠最近的那根尺身上刻线的数值，该数就是尺身的整数值。
(2)读小数——看游标“0”线右边是哪根线与尺身上的线重合，将该线的序号乘分度值所得的积，即为尺身的小数。
(3)求和——将上述两次读数相加即为所求的和。
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| The school was across the street from our home and I would often watch the kids as they played during the break.She seemed so small as she pushed her way __1__ the crowd of boys on the playground.She __2__ from them all. I began to notice her at other times, basketball in hand, playing __3__.She would practice dribbling (运球) and shooting over and over again, sometimes until __4__.One day I asked her __5__ she practiced so much.She looked __6__ in my eyes and without a moment of hesitation she said, "I want to go to college. The only way I can __7__ is that if I get a scholarship, I am going to play college basketball.I want to be __8__.My Daddy told me if the dream is big enough, the facts don't count." Well, I had to give it in to her-she was __9__.One day in her senior year, I saw her sitting in the grass, head __10__ in her arms.I walked toward her and quietly asked what was __11__."Oh, nothing," came a soft reply."I'm just too short." The coach told her that at her height she would probably __12__ get to play for a top ranked team, __13__ offered a scholarship.So she __14__ stop dreaming about college. She was __15__ and I sensed her disappointment.I asked her if she had talked to her dad about it yet.She told me that her father said those coaches were wrong.They just didn't __16__ the power of a dream.He told her __17__ she really wanted to play for a good college, if she truly wanted a scholarship, __18__ could stop her except one thing-her own attitude.He told her again,"if the dream is big enough, the facts don't count." The next year, as she and her team went to the Northern California Championship Game, s  he was seen by a college recruiter (招聘人员). She was indeed offered a __19__.She was going to get the college education that she had __20__ and worked toward for all those years. | ||||
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