朗读下面短文，体会、领悟加黑单词为哪类关系词，在从句中充当什么成分，修饰的先行词是什么。
It was the summer of 2012, when①I came to Guangning No. 1 Senior High School. Our school is a wonderful place, where②I can see a lot of beautiful buildings and a large square. Our classroom, the roof of which③looks like a rocket in the distance, is located in the center of our school. The main reason why④I like our school is that I can make many friends. I can get along with my classmates here, two of whom⑤are my best friends. Jack, who⑥comes from Tanbu Junior High School, is very active. He likes various sports, among which⑦he likes running most. He will run 5 kilometers every day, which⑧makes him look strong. Nick, whose⑨father is a teacher in Lianhe Junior High School, studies very hard. We often talk about the people and the things that⑩we see in our school. Nick prefers the food that?is made in our canteen. The teacher whom?he likes is Mr Zhang, our math teacher, while my beloved teacher is my English teacher, Miss Chen. To be honest, I gradually fall in love with our school.
[用法体悟]
①先行词是the summer of 2012，在定语从句中作时间状语，用关系副词when (＝in which)引导定语从句。
②先行词是a wonderful place，在定语从句中作地点状语，用关系副词where (＝at which)引导定语从句。
③先行词是Our classroom，指物，关系词应用which。the roof of which中的of表所属关系，意为“我们教室的屋顶”。
④先行词是The main reason，在定语从句中作原因状语，用why引导。
⑤先行词是my classmates，指人，关系词应用whom。two of whom中的of表示部分与整体的关系，意为“我的同班同学中的两个人”。
⑥先行词是Jack，在定语从句中作主语，用who引导。
⑦先行词是various sports，关系词在介词among后作宾语，只能用which。
⑧先行词是“He will run 5 kilometers every day”整个句子，并在从句中作主语，定语从句应用which引导。
⑨先行词是Nick，在定语从句中作定语，表示Nick's，用whose引导。
⑩先行词是the people and the things，既指人又指物，通常用that引导。
?先行词是the food，在定语从句中作主语，故用that或which引导。
?先行词是The teacher，在定语从句中作likes的宾语，故用whom或who引导。
