The first part of the question is about how to find out if a person has been injured. The answer is that you can tell by looking at their eyes. If they are not able to move them, then they have probably been injured. (1) A man who was hit on the head and lost consciousness for several hours. (2) A woman who fell down the stairs and broke her leg. (3) A child who was bitten by a dog and needed stitches. (4) An old man who had a heart attack and died. The second part of the question is about how to help someone who has been injured. The answer is that you should call an ambulance immediately and try to keep the person calm until help arrives.