写作(满分15分) 假定你是李华，由于新冠病毒（COVII-19/nove1 coronavirus）爆发，你校决定推迟开学，请你给回国度假 的留学生Jack写封邮件，告知此事。内容包括：

时态：根据提示，时态应以一般现在时为主
结构：总分总 
要求：
1.告知推迟开学；
2.介绍疫情；
3.开学日期另行通知。
第二步：列提纲（重点词组）
inform sb. of sth./ postpone/ outbreak/ due to/ spread/ infect/ avoid doing sth./ gather/ decide to do sth./ delay to do sth.
第三步：连词成句
1. I am so sorry to inform you that due to the outbreak of COVID-19 during this winter vacation the start of this term has to be postponed.
2. You must have known that COVID-19 is spreading all over the world, and that the situation is very bad.
3. Unfortunately, many people have been infected and died.
4. It is generally acknowledged that the best way to avoid being infected is not gathering but staying at home.
5. So in order to defeat this infectious disease, we've decided to delay the start of school.
6. The school will not begin until the outbreak is over.
7. The specific time will be announced online later.
第四步：连句成篇（加入衔接词或从句）
表示并列的连词：and/but/or/so…
状语从句连词：because/ if/ though/ although…
定语从句连词：which/ that/ when/ where…
第五步：修改润色（加入高级词汇或短语）
【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主从复合句，例如：I am so sorry to inform you that we'll have to postpone the start of school this term due to the outbreak of COVID-19 during this winter vacation.中that引导宾语从句；It is generally accepted that the best way to avoid being infected is not to gather and stay at home. 中that引导主语从句。