请你用英文写一篇介绍班主任王老师的文章。必须包含以下要点。
年近40，工作努力，多次受表彰。
知识丰富，教学有方，上课生动有趣。
与学生关系融洽，但要求严格。
在他的鼓励帮助下进步很快。
温馨提示：
词数100左右。
不必依序描述，不要逐词翻译。
可以合理增加细节Mr Wang, about 40 years old, is our head teacher.He has been teaching in our school for about 15 years.He has been working hard all the time and he was praised for his excellent work for quite a few times.
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(答案→)Mr Wang, about 40 years old, is our head teacher.He has been teaching in our school for about 15 years.He has been working hard all the time and he was praised for his excellent work for quite a few times.
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