Our school held many activities last week. We called it Road Safety Week. One of the educational activities was a speech given by a police officer. He shared something about the road safety. Here are some important points about his speech.

    Most traffic accidents(事故)shouldn't happen. They happen because people are careless. Afrequentcause(原因)of traffic accidents is speed(速度). Some people drive too fast. This means that if they have to stop suddenly, they cannot stop quickly enough to avoid hitting(避免撞)others. You need to remember this when you are crossing the street or walking along the sidewalk(人行道).

    It's not only drivers who cause accidents, however. People on foot－pedestrians(行人), and bicycle riders often cause accidents, too. Pedestrians sometimes walk out into the street without looking. You should always look on both sides before stepping into the street.

    Do any of you ride a bike? Bicycle riders can cause accidents by changing directions suddenly or without warning other road users. Before you turn left, for example, you should check behind you to make sure there aren't any cars, trucks or buses coming. You should show with your left hand to tell that you want to turn left. You should not turn until the street is clear.

    The rules of the road are very simple. If we learn them and obey(遵守)them, we should not have accidents any more. There were more other activities in Road Safety Week, hope every student could learn something.