假定你们学校要举行为期三天的运动会。你是学生会*，由你具体筹划这次运动会，包括时间、地点、运动项目（不少于5项）等。请你将筹划的情况告诉你班的英国同学jack。jack擅长跑步，你邀请他参加男子400米接力赛项目，并告诉他该项目比赛的具体时间及注意事项。（词数：80-100）内容要点：
1．举行校运动会，为期三天。
2．运动会的时间、地点、运动项目。
3．jack擅长跑步。
4．邀请他参加男子400米接力项目。
5．接力赛的具体时间。
6．参加接力赛的注意事项。
范文：
hi,jack,we're going to have our school sports meeting on th eplayground next week.it will last three days from thursday to saturday.we have many competitions in running,such as 100-metre race,200-metre race,400-metre race and the relay race.we also have the long jump,the high jump and so on .i know you're good at running.would you please take part in the boys' 400-metre erlay race which starts at 10:30 am on friday?please be on time,wear your sports shoes and take a bottle of water.
good luck to you!
__