I am now a new student at No.1 Junior High. Let me tell you something about my school days.（段评：本段作为记叙文的开篇,清晰交代了自己是初一新生的身份,自然引出下文要介绍校园生活的主题,开门见山很符合初中记叙文开头的要求,整体表达准确通顺,没有错误。修改版：I am now a new student at No.1 Junior High. Let me tell you something about my interesting new school days.）

There three building (改：There are three buildings) in the school. My classroom building is next to the library. There are five floor (改：five floors) in it. My classroom is in the third floor (改：on the third floor) . I have many subject (改：many subjects) . I have Chinese, English, maths, geography, biology, and history. I love maths best. Because it a lot of fun (改：Because it is a lot of fun) . My school life is interesting. I love play football (改：love playing football) in the playground. I love my new school!（段评：你把校园建筑、课程安排和课余爱好都清晰写了出来,能感受到你对新学校满满的喜爱,非常棒！这里有几个小问题可以调整:1. 主谓不一致:There three building 里be动词缺失且名词单复数错误,five floor、many subject里的名词都应该用复数形式。2. 介词搭配错误:表达在第几层楼要用介词on,不是in。3. 非谓语错误:love后面接动词的ing形式,love play 要改为love playing。另外可以适当加少量过渡词,用初中课标里的because状语从句把零散的短句衔接起来,让句子更流畅。修改版：There are three buildings in the school. My classroom building is next to the library,and there are five floors in it. My classroom is on the third floor. I have many subjects at school,including Chinese,English,maths,geography,biology and history. I love maths best because it has a lot of fun. My school life is very interesting,and I also love playing football in the playground after class. I really love my new school!）