1、UNIT 2 Family 家庭Words and Expressions:core family 核心家庭extended family 大家庭，数代同堂的大家庭nuclear family 小家庭，基本家庭（只有父母和子女）a family of three 三口之家the second of four brothers 四兄弟排行老二filial child 孝顺的孩子enjoy family harmony 享受天伦之乐couple 夫妇fall in love with somebody at first sight 对某人一见钟情twins 双胞胎arranged marriage
2、 包办的婚姻child-bride 童养媳DINK (double income and no child) 丁克夫妇（双薪无子女）bigamy 重婚polygamy 一夫多妻；一妻多夫stepmother 继母foster father 养父son-in-law 女婿daughter-in-law 媳妇mother-in-law 婆母；岳母brother-in-law 妻子的兄弟；丈夫的兄弟；姐妹的丈夫nephew 侄子；外甥niece 侄女；甥女cousin 堂兄弟姐妹；表兄弟姐妹great-grandfather 曾祖父single 单身的married 结婚的engaged 订婚的divorced 离婚的separated 分居的adopt 收养widow 寡妇widower 鳏夫half-brother 同母异父兄弟；同父异母兄弟half-sister 同母异父姐妹；同父异母姐妹birth rate 出生率wedding ceremony 婚礼wedding anniversary 结婚周年纪念one-child policy 计划生育darling 亲爱的honey 亲爱的sweet heart 心肝，宝贝
