下列属于学习行为的是（　　）

   The Spring   1  is the Chinese New Year .It usually comes in February . everyone in Chinese likes it very much .When it comes ,Li Lei helps his parents clean the house and do some other housework . on that day , everyone  2  dumplings and some other delicious food . Li Lei likes New Years cakes vevy much. But Lingling says jiaozi is nicer than New year’s cakes. Chinese people eat jiaozi and cakes in the house .How happy they are!
1 处的单词是：____ 
2处的单词是：____ 
画线部分翻译成为汉语：____ 
When does the Chinese New Year come ?____ 
What does Li Lei do when New Year comes ?____ 

《美国化学会杂志》报道了中国科学家以二氧化碳和钠在一定条件下制得金刚石，其化学方程式为3C_O2+4Na  2X+C(金刚石)。则X的化学式为（）

归纳和总结是学习历史的重要方法。小王通过学习知道鉴真和玄奘的共同之处是（    ）

①都是宋朝僧人    ②都在对外交往中有重大贡献    ③都为完成使命历尽艰辛