专题限时训练(二十六) [说明文型完形填空]
(限时：30分钟)
(一)
In Britain, people have different attitudes to the police. Most people generally __1__ them and the job they do－although there are certain people who do not believe that the police __2__ have the power that they do.
What does a policeman actually do? It is not __3__ job to describe. After all, a policeman has a number of jobs in __4__. A policeman often has to control traffic, either __5__ foot in the centre of a town, or in a police car on the roads. Indeed, in Britain, he might be in the Traffic Police and spend all, or a lot of, his time __6__ up and down main roads and motorways(高速公路). A traffic policeman has to help keep the traffic moving, stop __7__ drivers and help when there is an accident.
A policeman has to help keep the __8__， too. If there is a fight or some other disturbance, we __9__ the police to come and restore(恢复) order. And they often have to __10__ situation at great risk to their own __11__.
We expect the police to solve crimes, of course. So an ordinary policeman, __12__ he is not a detective, will often have to help __13__ and arrest criminals.
And __14__ do well when there is an emergency—an air crash, a __15__， a road accident, or a robbery? We call the police. __16__ a policeman has to be __17__ to face any unpleasant emergency that may happen in the __18__ world.
The police do an absolutely necessary job, they do it __19__ well and I support them, but I do not envy
