假设你叫李华。上周五，你校邀请林海博士给同学们作了“发生事故

假设你叫李华。上周五，你校邀请林海博士给同学们作了“发生事故，如何实施急救”的专题讲座。主要内容包括：

1. 首先检查事故现场是否安全；

2. 看到有人严重受伤，应立即拨打急救电话；

3. 急救的简单措施。

    请你根据以上提示，给你的美国笔友Tom写一封100词左右的电子邮件，介绍这个专题讲座的内容，并谈谈你的感想。

          注意：开头和结尾已经给出，不计入总词数。

Dear Tom，

I wish you all the best.

                                                                                              Yours,                                                                                                                                                                               Li Hua

Dear Tom，

       Last Friday, our school invited Doctor Lin Hai to give us a lecture on how to give first aid in case of an accident.

       Doctor Lin said that if an accident happens, we should first check whether the accident scene is safe. If it isn’t, move to a safe place at once. Furthermore, we should dial ambulance call immediately if someone is seriously injured. Besides, Doctor Lin offered us a lot of detailed first aid treatments and safety tips, which are easy to learn but very useful.

       Thanks to his lecture, now I know what to do in case of an accident.

           I wish you all the best.

                                                                             Yours,

                                                       LiHua