A stress B quantify C streamlines D occasionally E disrupted F communities G frequently H sphere I immersed J supervision K administrate L addiction M social N challenges O financial In some urban centers, workaholism ( 工作狂 ) is so common that people do not consider it unusual: They accept the lifestyle as normal. Government workers in Washington D.C., for example, 1) work 60 to 70 hours a week. They don’t do this because they have to; they do it because they want to. Workaholism can be a serious problem. True workaholics, being deeply 2) in their work, allow themselves little or no time to take breaks. They like to work without being 3) , and they probably don't know how to relax. But is workaholism always bad? Perhaps not. There are people who work well under 4) . Besides, some studies show that many workaholics have great energy and interest in their own 5) . Their work is so pleasurable that they are actually very happy. For most workaholics, work and entertainment are the same thing. Their work 6) them, keeping them busy and genuinely engaged. Why do workaholics enjoy doing their jobs so much? Of course they get paychecks from it, but it is hard to 7) the pleasure with money. It offers more than 8) security. Psychologists claim that work gives people an identity and provides them with self-confidence. People have a feeling of satisfaction when they 9) a business well or complete a challenging piece of work. In addition, most jobs provide a socially acceptable way for people to meet others. So, though some people are compulsive ( 强迫性的 ) about their work, their 10) seems to be a safe or even an advantageous one. They feel empty and incomplete when they are involved in activities not related to work.