雅思阅读段落的主题句

　　The recent string of corporate scandals provided a rude awakening to the importance of these internal checks. In the case of WorldCom, it was internal auditor Cynthia Cooper who blew the whistle on the company for inflating profits by $3.8 billion. She didnt intend to be a hero, she said to Time magazine when it named her one of its Persons of the Year. She was just doing her job.

　　Chief constables had disapproved of the use of league tables. They complained that they provoked unfair criticism because they did not compare like with like. Mr. Denham said the graphs were easier to comprehend than tables. As people get familiar with this type of graphical presentation they will realize it contains a lot of data that can be understood after an initial glance. The spidergrams are based on five indicators: reducing crime, investigation crime, public safety, deployment of resources and the view of a focus group of local citizens