1、當school指實際建築物或具體的場所“學校”表示地點時，在其前要加定冠詞、物主代詞或指示代詞。
2、當school與介詞at, in, to搭配且其前不帶任何限定詞時，它們表示“上學；求學；上學念書”等意義
3、at school, in school除了表示“上學；求學”之外，at school還含有on the school premises的意思，in school還含有in the school building的意思，即它們都表示“在學校校舍裏”。、
at school
1、He was disciplined at school for talking back to the teacher.
他因為和教師頂嘴受到了處分。
2、Each child had participated in extracurricular activities at school.
每個孩子都參加了學校的課外活動。
3、Is the child at school?
這孩子上學了嗎？
4、Her class teacher made a special arrangement to discuss her progress at school once a month.
她班上的老師作了特別安排，每月討論壹次她在學業上的進展情況。
5、Science was never my strong point at school.
我上學時理科從來都不是我的強項。
in school
1、A youthful teacher, he finds himself an unwilling participant in school politics
作為壹名年輕教師，他發現自己並不情願地參與到了學校的權力爭鬥中。
2、They were more interested in courtship and cars than in school
比起上學，他們對談戀愛和汽車更感興趣。
3、I'm lucky that I'm interested in school work, otherwise I'd go mad.
我很慶幸自己對學習懷有興趣，不然我會瘋掉的。
4、In school I was a loner. I went my own way.
在學校裏我獨來獨往，我行我素。
5、She thanks her parents for keeping her in school and pushing her to study
她感謝父母送她上學並督促她學習。