用英语造句"我们学校由48个班组成"

Our school is made up of 48 classes
或者Our school is consist of 48 classes

Our school is consist of 48 classes.

consist是不及物动词，用主动语态。不能跟is搭配！
Our school consists of forty-eight classes.
或： Our school is made up of forty-eight classes.

注释：
consist of ＝ be made up of 由……组成

Our school is composed of 48 shifts

Our school is made up of 48 classes .

Our school consists of 48 classrooms.
We have 48 classrooms in our school.