How do successful people think? What drives them? Interviews and investigations indicate that there are several keys to success that successful people share.  
First of all, successful people never blame someone or something outside of themselves for their failure to go ahead. They realize that their future lies in their own hands. They understand that they cannot control things in life, such as nature, the past and other people. But in the meantime, they are well aware that they can control their own thoughts and actions. They take responsibility for their life and regard this as one of the most empowering things they can do. Perhaps what most separates successful people from others is that they live a life “on purpose”---- they are doing what they believe they are put here to do. In their opinion, having a purpose in their life is the most important element that enables them to become fully functioning people. They hold that when they live their life on purpose, their main concern is to do the job right. They love what they do ---- and it shows. People want to do business with them because of their commitment(忠诚). To live their life on purpose, successful people find a cause they believe in and create a business around it. Besides, they never easily give up. Once they have set up goals in their life, they are willing to work hard whatever it takes to achieve their goals. Top achievers always bear in mind what they don’t have.
Rather than be negative or depressing, they use the knowledge to spur themselves on and go after what they want energetically and passionately.
46. The underlined word “it ” refers to “____”.
A. the main concern of successful people
B. the job that successful people do
C. the commitment with which successful people do their jobs
D. the business that successful people do with other people
47. By living a life “on purpose”, successful people can do the following EXCEPT ____.  
A. do a lot of work   
B. concentrate on their jobs
C. do business with many people     
D. control things in life
48. The underlined word “spur ” most probably means “____”.
A. encourage         B. excite               C. relieve       D. compel