aschool

at school和in school区别：

1、当school指实际建筑物或具体的场所“学校”表示地点时，在其前要加定冠词、物主代词或指示代词。

2、当school与介词at, in, to搭配且其前不带任何限定词时，它们表示“上学；求学；上学念书”等意义

3、at school, in school除了表示“上学；求学”之外，at school还含有on the school premises的意思，in school还含有in the school building的意思，即它们都表示“在学校校舍里”。、

at school

1、He was disciplined at school for talking back to the teacher.

他因为和教师顶嘴受到了处分。

2、Each child had participated in extracurricular activities at school.

每个孩子都参加了学校的课外活动。

3、Is the child at school?

这孩子上学了吗？

4、Her class teacher made a special arrangement to discuss her progress at school once a month.

她班上的老师作了特别安排，每月讨论一次她在学业上的进展情况。

5、Science was never my strong point at school.

我上学时理科从来都不是我的强项。

in school

1、A youthful teacher, he finds himself an unwilling participant in school politics

作为一名年轻教师，他发现自己并不情愿地参与到了学校的权力争斗中。

2、They were more interested in courtship and cars than in school

比起上学，他们对谈恋爱和汽车更感兴趣。

3、I'm lucky that I'm interested in school work, otherwise I'd go mad.

我很庆幸自己对学习怀有兴趣，不然我会疯掉的。

4、In school I was a loner. I went my own way.

在学校里我独来独往，我行我素。

5、She thanks her parents for keeping her in school and pushing her to study

她感谢父母送她上学并督促她学习。