In China, there are many traditional(传统的)holidays. The most important one is the Spring Festival. People like it very much. On the Spring Festival, people don't work. Children don't go to school. People clean their rooms. Mothers make dumplings. Kids can get lucky money. Besides this festival, the Dragon Boat Festival and the Mid­Autumn Festival are also popular. On the Dragon Boat Festival, people eat zongzi and have dragon boat races. On the Mid­Autumn Festival, people eat moon cakes and watch the moon. How happy they are!

“最美人物”成网络热词，为人们学习的楷模。为了更好的传递“最美人物”身上的正能量，我们必须（　）

①培养高度的社会责任感                ②学会热心公益，服务社会

③从身边小事做起，只对自己负责   ④积极承担责任，不言代价与回报

春季植树时，移栽的树苗常剪去一些枝叶，以提高成活率．其原因是减少枝叶可以（    ）

下图是骨针和装饰品，它反映了山顶洞人（   ）