Is homesickness in high school or junior high school?

Senior high school, ninth grade of People's Education Edition.

Nostalgia is a ninth grade text, and Nostalgia is a modern poem written by modern poet Yu Guangzhong at 1972. Through the time series of "when I was a child", "when I grew up", "later" and "now", the poem concretizes the abstract homesickness with stamps, boat tickets, graves and straits, summarizes the poet's long life course and endless homesickness for the motherland, and reveals the poet's profound sense of history. The whole poem has simple language and deep feelings.

This poem was written in 1972. Yu Guangzhong's ancestral home is Yongchun, Fujian. He left the mainland for Taiwan Province Province on 1949. At that time, due to political reasons, Taiwan Province Province was isolated from the mainland for a long time, which prevented Yu Guangzhong from returning to the mainland for many years. He has always missed his loved ones and longed for the reunification of the motherland and the reunion of his loved ones. With strong homesickness, the poet wrote this poem in his former residence in Xiamen Street, Taipei.