2017北京中考英语阅读理解训练：a traffic police officer(2)

　　参考答案：

　　1)He is a traffic police officer in Watford，near London.

　　2)There are nine to twelve(three to four per shift)。

　　3)He helps the injured people and then clears the road and gets the traffic moving again.

　　4)Because people drive too fast，especially when the roads are wet.

　　5)It can give him special experience.