1.Making sure that the accident scence is no longer dangerous.
2.We can do a lot of good by smply asking"Are you all right?"The question will also calm the person,letting him or her know that help is on the way.
3.Making sure that a person's airway is open and it is easy to breathe.
4.We should check that the person can breathe.
5.We can look for colour,coughing and eye movement.We can also check a person's pulse by putting a finger on the person's neck or wrist.
参考资料:人教版高二英语(上)