目前，越来越多的中学生利用周末上各种各样的培训班或请家教。对于这一现象，存在两种不同观点：
有些人认为有必要 另一些人认为没有必要
有老师辅导比自己学好 有更多机会和老师互动 可以弥补上课错过或没听懂的东西 容易养成依赖习惯 学生需要时间休息和娱乐 导致有的学生在常规课堂上不认真听讲
请您根据以上提示，以Are Training Classes or tutors Necessary ?为题，写一篇120 词左右的短文，反映表中内容，并简要阐述自己的观点。文章开头已给出， 不计入总字数。
参考词汇：家庭教师：tutor
要求：层次清晰，连贯流畅;表达灵活，不要逐字逐句翻译。
Are Training Classes or tutors Necessary?
Some think it necessary to do so. Firstly, its more effective to study with a teachers help than by themselves. Secondly, you can have more chances to communicate with teachers . Besides, you can make up for what you miss or fail to understand in classes on weekdays.
Others think it unnecessary. For one thing, students can easily form the habit of dependence. For another, students need time for rest and recreation at weekend. Whats worse, attending training classes or hiring tutors even causes some students not to listen attentively in their regular classes.
In my opinion, whether a training class or tutor is needed just depends. If you are really very weak at or interested in a certain subject, maybe its OK for you. But be sure to choose a good and suitable class or teacher, otherwise it would be a waste of time and money.