【答案】Dear Peter,

I am Li Hua, president of the Student Union. I am writing to formally invite you to give a lecture. Would you please be so kind as to prepare for the content as follows?

Firstly, it would be nice if you could do a brief self introduction to our audience as a starter. Secondly, please make a general comparison of the similarities and differences on the educational ideas and teaching methods between China and America. Lastly, your impression of our school will be appreciated as the closing of the lecture.

Looking forward to your reply.

Yours truly,

Li Hua

【解析】

本文是一篇应用文。写一封电邮邀请美国老师Peter到校就相关问题上一堂课。

第一步：根据提示可知，写一封电邮邀请美国老师Peter到校就相关问题上一堂课。

第二步：根据写作要求，确定关键词（组），如：president of the Student Union, formally, a brief self introduction, a general comparison of the similarities and differences, as a starter, as the closing of the lecture等。

第三步：确定文章结构，本文可以采取三段的写法，第一段提出写信目的并发出邀请；第二段提及课堂内容的几个要点；第三段期待对方的回复。

第四步：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。此处文章主要用一般现在时。

第五步：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，保持整洁美观的卷面是非常重要的。