题目

阅读下面材料，根据所给情节和所给两段每段的开头语进行续写，使之构成一个完整的故事情节。所续写短文的词数应为150左右New Year was just around the corner. I was second grade then, 7 years old. One day, on my way home from school, a lady gave me a piece of paper saying that the neighborhood was asking people to give New Year presents to those who needed them. When I got home, I showed my mother the paper and said that I wanted to take part in this plan. My mother thought this was a very good idea and encouraged me to spread kindness to others le若变量x、y满足，若2x-y的最大值为-1，则a=    ．