在日常学习、工作或生活中，大家总少不了接触作文或者范文吧，通过文章可以把我们那些零零散散的思想，聚集在一块。那么我们该如何写一篇较为完美的范文呢？下面是小编为大家收集的优秀范文，供大家参考借鉴，希望可以帮助到有需要的朋友。

中学生的保证书300字篇一

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中学生的保证书300字篇三

尊敬的*老师：

我因学习态度不端正，缺乏学习动力，在学校开学后一周才在到校上课，影响了自己的

学习进程的同时，严重违反学校校规和班级纪律。通过老师的教育帮助，使我深刻认识到缺课旷课无视学校纪律的行为是不对的，可能会造成严重后果，以及今后要用心、刻苦学习不辜负老师的期望的深刻道理。为此我向*老师，并通过*老师，向学校领导保证，今后一定做到:

一，按时到校，不无故旷课，早退，如有特殊情况一定先请假，先经过老师批准。二，转变学习态度，上课仔细听课，按时交作业，踏实认真学习。

三，不违反其他校规校纪。

四，我保证言行一致。

请老师督促检查。

敬礼！

保证人：

××学生×××

中学生的保证书300字篇四

本学期本人自愿认真遵守学校宿舍管理和班级宿舍管理规定，保证不违反以下任何一条规定：

1.严禁翻越栏杆围墙及登屋顶、爬树和爬窗。（如出现意外后果自负。）

2.严禁抽烟、喝酒；在宿舍里赌博或变相赌博。

3.严禁将管制刀具及其它有危害的器械带入寝室。

4.严禁未经请假，私自外出不在宿舍就寝。

5.严禁在宿舍里烧煮食物，乱接电源，烧电炉及使用其它电器；熄灯后点蜡烛。

6.严禁有盗窃行为。

7.严禁有敲诈勒索其他同学财物的行为。

8.严禁带外班同学进入宿舍。

9.按照学校的作息时间就寝，睡觉时间不得讲话或到处乱逛，影响他人休息。

10.听从宿舍舍长安排，按时做好宿舍卫生。

11.服从学校宿舍管理员安排，不得顶撞宿舍管理员。

若违反任何一条，第1次班级进行警告，并通知家长到校，第2次自动取消内宿资格。

保证人： 家长签字：

2xxx年 月 日