Teaching goals教学目标
1. Target language 目标语言
a. 重点词汇和短语
aid, first aid，fall ill，illness，injury，bleed，sprain，ankle，choke，blood，bloody，burn，essential，organ, layer, poison, ray, treatment
b. 交际用语
We / you should / ought to...
Please do...
Make sure...
You must / have to / ought to...
You must never...
You ought never to...
