题目内容：

Mark Hill is a traffic police officer in Watford, near London. He works on some of the busiest motorways in Britain? the Mi and the M25.

“There are traffic police on duty twenty-four hours a day. There are three shifts(轮班), and each shift is eight hours. On average(按平均数计算)we have to deal with three to four accidents each shift”.

“We deal with anyone in the accident who is injured(受伤).That’s the first thing. Then we have to clear the road and get the traffic moving again.”

“Most accidents happen because people drive too fast -especially when the roads are wet. Sometimes accidents happen because drivers don't follow the rules. For example, I've seen a number of cases(案件) of drivers overtaking(超车)on the left. This is illegal(违法的) in Britain. If you want to overtake, you have to go into the fast lane(车道) on the right”.

I like my job. I have a varied(各种各样的) working day--I never know what I'm going to do from one day to the next. And i meet all kinds of people. I don't think any other job can give you special experience like that.

1题完成句子;2~3题简略回答问题;4题将文中画线句子译成汉语。

1.Most accidents happen because________ ________and sometimes accidents happen because.

2.How many accidents are there in a 24-hour period(时期)?

______________________________________

3.What does Mark usually do after an accident?

________________________________________________

4._______________________________________________________