Adult education is the practice of teaching and educating adults．This is often done in the workplace，or 56 “continuing education” courses at secondary schools, or at a college or university．

Educating adults differs from educating  57  in several ways．One of the most important  58  is that adults have gained knowledge and experience which can  59  add value to a learning experience or interfere with it．

Another important difference is that adults frequently must apply their knowledge in some  60  fashion in order to learn effectively；there must be  a  61  and  a reasonable expectation that the new knowledge will help them further that goal．One example， 62   in the 1990s，was the spread of computer training courses in  63 adults，most of them office workers，could enroll．These courses would teach basic use of the operating system or specific application 64  ．Because the skills  65  to interact with a PC were so new，many people who had been working white-collar jobs for ten years or more eventually took such training courses，either of their own will(to gain computer skills and thus can higher pay)or at the request of their managers．

56．A．by              B．from           C．on                  D．through

57．A．children     B．students    C．workers          D．employees

58．A．signs         B．features     C．differences      D．practices

59．A．either        B．neither       C．both                 D．so

60．A．probable   B．practical     C．modern            D．routine

61．A．plan          B．prospect     C．goal                 D．possibility

62．A．normal       B．common     C．regular            D．profitable

63．A．that            B．which          C．those              D．whose

64．A．software    B．hardware     C．technology    D．framework

65．A．related      B．designed     C．expected        D．required

Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (21) ____ on the individual suggest that children engage in criminal behavior (22) ____ they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (23) ____ with others. Theories focusing on the role of society suggest that children commit crimes in (24) ____ to their failure to rise above their socioeconomic status (25) ____ as a rejection of middle-class values.