【历史上重大改革回眸】阅读材料，完成下列要求。

雍正五丰，（官员）田文镜上疏，请将苛虐佃户的乡绅按照违例例议处，衿（秀才）监吏员则革去职衔。雍正帝提出，他只考虑绅衿欺凌佃户，却没有顾及佃农拖欠地租及欺瞒田主的问题，命再议论。于是定出田主凌虐佃户及佃户欺瞒田主之例，规定秀才监生“私置板棍，擅责佃户，勘实，乡绅照违制律议处，衿监吏员革去衣顶职衔，照律制罪……如将佃户妇女占为婢妾，皆革去衣顶职衔，按律制罪。至于奸玩佃户，拖欠租课，欺瞒田主者，照律治罪，所欠之租，照数返给田主。”清朝法律，凡人之间拷打监禁，罪止杖八十。

——摘编自白寿彝《中国通史》

    One weekend, my kids and I were heading into the supermarket. On the way, we 1 a man holding a piece of paper that said, “Lost my job. Family to Feed.”

    At this store, a 2 like this is not normal. My 10-year-old noticed him and made a 3 on how bad it must be to have to stand 4 in the cold wind.

    In the store, I asked each of my kids to pick something they thought our “friend” there would 5. They got apples, a sandwich and a bottle of juice. Then my 17-year-old suggested giving him a6. I thought about it. We were low on cash ourselves, but… well, sometimes giving from our need 7 our abundance (充裕；丰富) is just what we need to do! All the kids declared something they could do away with for the week.

    When we handed him the bag of 8, he lit up and thanked us with 9 eyes. When I handed him the gift card, saying he could use it for 10  his family might need, he burst into tears.

    This has been a wonderful 11 for our family. For days the kids have been looking for others we can 12 ! Things would have played out so 13 if I had simply said, “No, we really don't have 14 to give more.” Stepping out not only helped a brother in need, it also gave my kids the 15 taste of helping others. It'll go a long way with them.

计算：(－2)²－$\sqrt{\frac{9}{4}}$＋(－3)⁰.