本篇书面表达属于应用文，要求考生写一封邮件，邀请外教Tim来参加农业生态园活动。
【详解】第一步：审题
体裁：应用文
时态：根据提示，时态应为一般现在时。
要求：
1．邀请他参加；
2．时间、集合地点、出行方式；
3．活动安排。
第二步:列提纲 （重点词组）
plan to do sth; pay a visit to; invite; is known to do; a wide variety of; indulge yourself in; Besides; be allowed to do; have great fun; get a good knowledge of; looking forward to
第三步：连词成句
1. We're planning to pay a visit to an Ecological Garden this Saturday morning.
2. I'm writing to invite you to join us.
3. We are to gather at the school gate and go there by bike at 7:30 am.It will take us 30 minutes to get there.
4. The garden is known to have a wide variety of flowers,trees and plants,which you can fully indulge yourself in.
5. Besides,we are allowed to go into the fields to pick fruit and vegetables,with which we are to make our lunch.
6 You' ll certainly have great fun and get a good knowledge of modern agriculture.
7. Looking forward to your participation.
根据提示及关键词（组）进行遣词造句，注意主谓一致和时态问题。
第四步：连句成篇（衔接词）
1.表文章结构顺序：First of all, Firstly/First, Secondly/Second… And then, Finally, In the end, At last
2.表并列补充关系：What is more, Besides, Moreover, Furthermore, In addition, As well as, Not only…but (also)…, Including
3.表转折对比关系：However, On the contrary, But, Although + clause(从句), In spite of + n/doing, On the one hand…,on the other hand…, Some…,while others…,As for, So…that…
4.表因果关系：Because, As, So, Thus, Therefore, As a result
连句成文，注意使用恰当的连词进行句子之间的衔接与过渡，书写一定要规范清晰
第五步：润色修改
【点睛】范文内容完整，要点全面，语言规范，语篇连贯，词数适当，上下文意思连贯，符合逻辑关系。作者在范文中使用了一些地道的表达，如定语从句The garden is known to have a wide variety of flowers,trees and plants,which you can fully indulge yourself in以及Besides,we are allowed to go into the fields to pick fruit and vegetables,with which we are to make our lunch。全文中没有中国式英语的句式，显示了很高的驾驭英语的能力。另外，文章思路清晰、层次分明，上下句转换自然，为文章增色添彩。
苏19057182-3号