First aid（The Fourth Period）
(show the following on the screen.)
first aid quiz
1. what should you do if you find a person who has stopped breathing?
a. run and find help.
b. try to start his/her breathing.
2. what should you do if you find a person with a knife in his/her back?
a. leave the knife in.
b. pull the knife out.
3. what should you do if you find a person whose leg is bleeding?
a. tie a piece of cloth around the leg above the bleeding point.
b. press firmly on the bleeding point using a clean handkerchief.
4. what should you do if you find a person who has been hurt in a car accident?
a. leave him/her in the car.