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 ?____ 

下列词语中划线字的读音全都正确的一项是（      ）

读“长江三角洲地区示意图”，完成下列各题。

下列关于“绿叶中色素的提取和分离”实验的描述中，不正确的是