A police officer’s job responsibilities are varied. Police make sure that people follow the law.They solve crimes, direct and control traffic, help in emergencies such as car accidents, collect evidence at the scene of a crime , and even testify（作证）in court.

Police also work in a wide variety of places. Some work in offices or police stations, but 【小题1】patrol（巡逻）communities on foot, by car, on a motorcycle, or even on a horse! Still other types of police officers ride in boats to protect rivers, lakes, and harbors.

Most police wear a uniform. These are the police you can 【小题2】recognize. But other police may not be as easy to spot: Detectives or special agents wear【小题3】 street clothes.

Police can be men or women, and they have a very dangerous job. This is because police often deal with people who have broken the law. Many police officers carry weapons, such as a gun or nightstick, to protect them from harm. Sometimes police officers are【小题4】to car chases or have to go to risky places, such as the scenes of fires and explosions. Police officers always put themselves in harm’s way to keep us safe, so it’s important to 【小题5】them.