假如你是李华，刚刚作为志愿者队长接受紧急救护培训回到学校，你将为同学们做报告，分享你学到的救助知识。请用英语写一篇发言稿。内容包括：
1.介绍什么是紧急救助；
2.举出2-3个紧急情况的例子，并介绍如何实施紧急救助；
3.紧急救助在日常生活中的重要性；
4.你的建议。
注意：1.字数120左右。 2. 开头已写好，不计入总词数。
3.适当使用本模块学过的分词、倒装、省略等语法结构
Dear friends,
I am happy to give you a talk, sharing what I learned about first aid.
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参考范文
Dear friends,
I am happy to give you a talk, sharing what I learned about first aid.
First aid is the timely treatment given to the injured before doctors comes.
Students as we are, we should prepare for an emergency by learning something about first aid, which is urgently needed in some accidents. For example, if someone suffers from a sprained ankle while doing sports, the best way to treat it is to put an ice pack or cold water on his ankle. When treating a cut, we should take immediate action to clean the wound and stop the bleeding. Call 120 if the injury is too serious to deal with. Besides, keeping a first-aid kit at hand is a wise c hoice.
In conclusion, knowing how to perform first aid is of great importance in our daily life, which sometimes means the difference between life and death. With so many uncertain things filling our daily life, we should get hang of more knowledge about first aid. Only with a cool mind and adequate knowledge can we offer a helping hand when necessary.