题目

根据短文内容回答下列问题 My name is Nancy. I’m a student. I’m twelve. My father is a teacher. My mother is a teacher, too. John is my brother. We are all in Beijing, China. The man in a black coat is my father. The woman in a red sweater is my mother. The boy behind the tree is John. We are very happy here. We love Beijing. 1.How old is Nancy?_________________________________________ 2.Who is Nancy’s brother?___________________________________ 3.What are Nancy’s father and mother?________________________ 4.Where are they now?_______________________________________ 5.Do t（1）计算：       （2）解方程： x2＋3x＋1=0．