五月四日，高三年级一班和二班之间将进行一次有关环保问题的演讲比赛（a talk show on environment protection）。此前，二班邀请清华大学的Dr Li做相关内容的报告。假定你是二班的班长，请你草拟一个有关报告会的口头通知。
　　注意：
　　1.内容应包括提示及表格内的全部要点；
　　2.词数在100左右；
　　3.开头已为你写好。

　　报告内容:近些年北京的环境问题及已取得的进步
　　地点:教学楼三楼会议厅（auditorium）
　　时间:四月三十日，星期三下午 2：00
　　目的:帮助大家收集信息，为演讲做好准备
　　参加人员:全班同学
　　其他安排:会后议论

　　May I have your attention, please

　　As you know, our class will have a talk show on environment protection with Class One on May 4th. Before it takes place, we
　　…

　　One possible version:

　　May I have your attention, please

　　As you know, our class will have a talk show on environment protection with Class One on May 4th.Before it takes place, we will invite Dr Li from Qinghua University to give us a talk on the environment problem and he will also tell us about the improvement in environment protection in recent years in Beijing.

　　The report will begin at 2:00 pm on Wednesday, April 30th in the auditorium on the third floor in the classroom building. I'm sure we can get enough information from his talk to make good preparations for the coming talk show. Everyone should be there on time, then listen to the report and make full notes at the same time.

　　By the way, we will have a discussion after the report.

　　That's all. Thank you.