几位外国旅游者到公园的“英语角”参观。假定你是“英语角”的负责人，请用英语准备一段介绍，内容如下：
1．简况：“英语角”三年前成立,许多中学参加，至今已有几百人.许多大学生和外国友人也常光顾。
2．活动内容：练习英语会话,谈论有兴趣的话题，交流学习英语的经验。
3．活动时间：每周日上午。
4．效果：通过参加活动学习了许多东西，对英语课堂学习是一个补充。学生、家长、老师都非常欢迎，认为对学英语很有帮助。如果还想了解更多，可问在场的学生。
参考词汇：
     对……补充：a supplement to…

参考范文

Ladies and gentlemen,

    Welcome to our English Corner. This Corner was set up three years ago. Every Sunday morning,　students from different schools gathered around here. Many college students and some foreigners often join us, We practice spoken English by talking about everything we are interested in. We also exchange our experience in English study. We all have a good time here. Thousands of people have been here since it was set up.

    We think that we have learned a lot by taking part in activities here. It is a real supplement to our English class and it is welcomed by students. Their parents and teachers. They all think it is helpful. If you want to know more about the corner, you may talk to the students here.

Li Ming