假设你是红星中学高三学生李华。你在"保护地球，守护家园"英语演讲比赛中荣获一等奖。备赛期间，外教Jim给予了你很多帮助。请你用英文给他写一封邮件，内容包括：
1. 表达感谢并说明原因；
2. 谈谈你的收获。
注意：1. 词数100左右；
得分：评阅中 平均得分：-
【导语】题目要求考生给外教Jim写一封邮件，对他在备赛期间提供的帮助表示感谢。
【详解】1.词汇积累
表达：express→convey
帮助：help→assistance
指导：guidance→instruction
获得：gain→obtain
2.句式拓展
简单句变复合句
原句：Thanks to your guidance, I performed confidently in the contest.
拓展句：Since you have guided me patiently, I performed confidently in the contest.
【点睛】[高分句型1]
I’m delighted to inform you that I won the first prize in the English speech contest.（运用了that引导的宾语从句）
[高分句型2]
Not only did you polish my speech draft, but you also patiently corrected my pronunciation and taught me some speaking skills.（运用了部分倒装）