根据下列文章,请回答 51～65 题。 The American Parnily In the American family the husband and wife usually share important decision making. When the children are ____________ (1) enough, they take part as well. Foreigners are often surprised by the permissiveness (宽容) of American parents. ]he old rule that 'children should be seen and not heard' is rarely ___________ (2), and children are often allowed to do ___________ (3) they wish without strict control of their parents. The father seldom expects his children to listen to him ___________ (4) question, and children are encouraged to be ___________ (5) at an early age. Some people believe that American parents carry this freedom ___________ (6) far. Others think that a strong father image would not ___________ (7) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to ___________ (8) their parental families by the time they haw ___________ (9) their late teens or early twenties. Indeed, not to do so is often regarded as a (10), a kind of weak dependence. This pattern of independence often results in serious ___________ (11) for the aging parents of a small family. The average American is expected to live ___________ (12) the age of 70. The job-retirement age is ___________ (13) 65. The children have left home, married, and ___________ (14) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes ____________ (15) the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group. 第 51 题