今日中国，“到此一游”触动的深刻反思，“扶起老人”引发的热烈讨论，无不折射国人对道德良知的珍视、对高尚品格的向往。形成健康的社会风尚，需要每个公民的协力；打造奋发的时代气质，离不开亿万人民的参与。这告诉我们应（    ）

①加强思想道德建设以提高全民族的科学文化素质       ②积极培育和践行社会主义核心价值观

③营造“我为人人，人人为我”的良好社会氛围          ④大力弘扬中华民族的传统美德

    We eat food with the help of hands every day. It is possible for some germs(细菌) to get into our bodies. So it is important to know how to wash hands in the right way.

    A piece of news from CCTV says that students from Guangzhou have a good way of learning how to wash hands. They learn it through doing hands-washing exercises during the ①break. The teachers there say most students wouldn't like to listen but they like to act. So now the students are interested in the interesting exercises. They are learning carefully. ②They want to be teachers for their parents and friends after they learn them well.