个案资料家庭背景杨成鑫,男孩,现年12岁,单亲家庭里的孩子,体质差,很瘦,个子也不高,据调查,他实际是个抱养儿,从小就与养父相偎为命,现就读笔者所在学校6.1班。养父抱养他时已有40多岁,无职业,且身患癌症。父子俩居无定所,家境非常贫困,经济条件很差,2013年11月以前,因为村里对父子也很关照,他们才得以寄居于多年未招生的西彭镇元明千秋小学里。养父在世时,对杨成鑫很严格, Case data Family background Yang Chengxin, boy, 12-year-old, single-parent family children, poor health, very thin, tall is not high, according to the survey, he is actually a child-care, childhood and adoptive father, School 6.1 class. When adoptive father adopted him more than 40 years old, no occupation, and suffering from cancer. Father and son live without a fixed-term, very poor family, poor economic conditions, as of November 2013, because the village is also very concerned about their father and son, they were able to live in many years did not enroll students Xipeng Chiaki Chiaki primary school. When adoptive father was alive, very strict to Yang Chengxin,