【答案】Dear Chris,

I’m Li Hua. On behalf of the Students’ Union, I’m writing to tell you about a labor activity outside the school.

Considering students today seldom get involved in physical work or chores, the activity is intended to fuel our passion for manual work and highlight its importance. We will gather at the school gate at 8 this morning before a bus takes us to a nearby farm. Our task includes weeding, watering, applying fertilizers and spraying pesticides. Hopefully, this experience will remind us to treasure what we have and help us to develop a sense of responsibility for nothing is easily achieved.

Just tell me in advance if you are interested. Looking forward to your participation.

Yours sincerely,

Li Hua

【解析】

本篇书面表达属于应用文，要求写一封邀请信。

第一步：根据提示可知，假如你是李华，请你代表学生会写一封邮件给本校交换生Chris，告知你们将组织一次校外劳动锻炼并邀请他参加。内容包括：1. 活动目的；2. 活动安排；3. 表达期待。

第二步：根据写作要求确定关键词（组），如：a labor activity, get involved in, physical work or chores, fuel our passion , at the school gate , weeding, watering, applying fertilizers , spraying pesticides, treasure what we have, a sense of responsibility, in advance.

第三步：根据提示和关键词（组）进行遣词造句，注意主谓一致和时态问题。本文采用一般现在时和一般将来时。

第四步：连句成文，注意使用恰当的连词进行句子之间的衔接和过渡，书写一定要规范清晰，保持整洁美观的卷面是非常重要的。