请写出古代诗歌中表现关心民生疾苦之情的句子。（写出连续的两句）

____ ，____ 。

将三个同样大小的正方形的一个顶点重合放置，如图，那么∠1=____ 度．

如图所示，关于近视眼的形成和矫正方法，正确的是（　　

根据短文内容完成下列句子，每空一词。
   Mike and Peter are good friends. They are students. They go to school five days a week. Mike’s birthday is in the eleventh month of a year. Peter’s birthday is October 1st. That’s National Day. Mike likes playing basketball, but Peter likes playing soccer. Mike often wears sports shoes to play basketball. He likes white sports shoes. Mike’s birthday is coming. Peter goes to a sports store with his friend, Bill. They have alook at basketballs and sports shoes. At last, they buy a pair of white sports shoes for Mike. When Mike sees the shoes, he is very happy.