温暖

    一天，雷锋同班战友小韩出车回来很晚，他的棉裤被汽车电瓶里的硫酸烧了一个洞，由于又累又困，也没在意，钻进被窝里就睡了。

    雷锋夜间值班回来，像往常一样，到各个铺位巡视一遍。他看见有的同志蹬开了被子，露出了腿脚，便轻轻地给他盖好。忽然他发现小韩棉裤上的那个破洞，心想：天这么冷，明天可不能让小韩穿着这样的棉裤出差、出车。他便拿起小韩的棉裤想给他补一补，可是一时又找不到合适的布。他琢磨了一会儿，忽然想到自己帽子里的衬布很合适，便拆了下来，聚精会神地一针一线地把小韩的棉裤补好了，然后轻轻地盖在小韩身上。

    雷锋同志就是这样关心着班里的每个战士，对同志像春天般的温暖。

根据材料内容，选择正确答案。

    An old man died and left his son a lot of money. But the son was a foolish young man, and he quickly spent all the money, so that soon he had nothing left. Of course, when that happened, all his friends left him. When he was quite poor and alone, he went to see Nasreddin, who was a kind, clever old man and often helped people when they had troubles.

    "My money has finished and my friends have gone," said the young man. "What will happen to me now?"

    "Don't worry, young man," answered Nasreddin. "Everything will soon be all right again. Wait, and you will soon feel much happier. "

    The young man was very glad. "Am I going to get rich again then?" he asked Nasreddin.

  "No, I didn't mean that," said the old man. "I meant that you would soon get used to being poor and to having no friends. "

选词填空。

如图，在平面直角坐标系xOy中，抛物线y=x²﹣2x﹣3交x轴于A，B两点（点A在点B的左侧），将该抛物线位于x轴上方曲线记作M，将该抛物线位于x轴下方部分沿x轴翻折，翻折后所得曲线记作N，曲线N交y轴于点C，连接AC、BC．