假设你是红星中学学生会主席李华。你校高三年级将举行纪念高中毕业的植树活动。请给你校外籍教师Jim写邮件，内容包括：
1. 介绍活动：
2. 发出邀请。
注意：1. 词数100左右;
2. 开头和结尾已给出，不计入总词数。
得分：评阅中 平均得分：-
【导语】本篇书面表达属于应用文。要求考生给你校外籍教师Jim写邮件，邀请他参加你校高三年级即将举行的纪念高中毕业的植树活动。
【详解】1.词汇积累
参加：take part in→attend
目的是：aim to→be designed to
享受：enjoy→appreciate
同时：in the meantime→meanwhile
2.句式拓展
合并简单句
原句：The activity aims to celebrate our graduation. It might be one of the few occasions when all of us can get together to enjoy senior high school life.
拓展句：The activity aims to celebrate our graduation, which might be one of the few occasions when all of us can get together to enjoy senior high school life.
【点睛】[高分句型1] Since you have been with us for 3 years and witnessed our growth, we do hope you can come. (运用了since引导原因状语从句)
[高分句型2] We believe the young trees will grow up, healthy and strong, just like us. (运用了省略that的宾语从句)