急急急！英语好的帮帮我啊！！！

A job applicant has the responsibility for ascertaining certain types of information prior to the interview. First,the applicant should know what kind of job he wants and how that job relates to his career objective.It is important that the applicant be able to state his reasons for wishing to work for a particular company.Second,the applicant should seek as much information as possible concerning the company.Relevant information for the applicant to locate includes such items as the location of the home and regional offices,the financial status of the company,plans for expansion,and company philosophy.Information about most major corporations is available in reference books and periodicals.

上段第一句是段落的主题句，句子的大意是：申请工作的人在接受面试前有责任了解某些方面的信息。主题句中的关键词是ascertaining certain types of information。紧接着，文章围绕主题句从两方面展开，论述了申请人应了解两类信息。

或者参考下面这篇关于跳槽的文章
My View on Job-hopping
　　Some people tend tostick to their positions all the time，as they think the longer one works in a particular field，the more skillful one will be at it．Some have been teachers all their lives．Some devote all their energy to scientific research．Such people love their work and turn out to be specialists in their own fields．They are usually high achievers．
　　Some are different．They are in the habit of job-hopping，for they always purpose what is new and stimulating．They never seem content with their present situations．They like to meetmore people，make more money and new acquaintances，so they hop from job to job．
　　As far as I am concerned，I am not in favour of constant job-hopping． I believe in a famous proverb，“A rolling stone gather no moss．”I want to be professionally strong．And I respect those who devote themselves to their affectionate jobs throughout their life.