Many theories concerning the causes of juvenile delinquency （青少年犯罪) focus either on t

Many theories concerning the causes of juvenile delinquency (青少年犯罪) focus either on the individual or on society as the major contributing influence. Theories 【C1】______ on the individual suggest that children engage in criminal behavior. 【C2】______ they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior. through 【C3】______ with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status 【C4】______ as a rejection of middle-class values.

Most theories of juvenile delinquency have focused on children from disadvantaged families, 【C5】______ the fact that children from wealthy homes also commit crimes. The latter may commit crimes for lack of adequate parental control. All theories, however, are tentative and are 【C6】______ to criticism.

Changes in the social structure may indirectly 【C7】______ juvenile crime rates. Families have also 【C8】______ changes these years. More families consist of one parent households or two working parents; 【C9】______ , children are likely to have less supervision at home, 【C10】______ was common in the traditional family 【C11】______ . This lack of parental supervision is thought to be an influence on juvenile crime rates. Other 【C12】______ causes of offensive acts include frustration or failure in school, the increased 【C13】______ of drugs and alcohol, and the growing 【C14】______ of child abuse and child neglect. All these conditions tend to increase the probability of a child committing a criminal act, 【C15】______ a direct causal relationship (因果关系) has not yet been established.

【C1】______

A．acting

B．relying

C．centering

D．cementing