The horse and carriage are things of
the past. But love and marriage are still with us and still closely
interrelated. Most American marriages, particularly first marriages{{U}}
(31) {{/U}}young couples are the result of{{U}} (32)
{{/U}}attraction and affection{{U}} (33) {{/U}}than practical
considerations. In the United States, parents do not arrange
marriages for their children. Teenagers begin{{U}} (34) {{/U}}in high
school and usually find mates through their own{{U}} (35) {{/U}}and
social contacts. Though young people feel free to choose their friends from{{U}}
(36) {{/U}}groups, most choose a mate of similar background. This is
due in part to{{U}} (37) {{/U}}guidance. Parents cannot select spouses
for their children, but they can usually influence choices by{{U}} (38)
{{/U}}disapproval of someone they consider unsuitable. {{U}}
(39) {{/U}}, marriages between members of different groups (
interclass, interfaith, and interracial marriages) are increasing, probably
because of the greater{{U}} (40) {{/U}}of today's youth and the fact
that they are restricted by{{U}} (41) {{/U}}prejudices than their
parents. Many young people leave their home towns to attend college,{{U}}
(42) {{/U}}in the armed forces,{{U}} (43) {{/U}}pursue a
career in a bigger city.{{U}} (44) {{/U}}away from home and family, they
are more{{U}} (45) {{/U}}to date and marry outside their own social
group. In mobile American society, interclass marriages are neither{{U}}
(46) {{/U}}nor shocking. Interfaith marriages are{{U}} (47)
{{/U}}the rise particularly between Protestants and Catholics.{{U}} (48)
{{/U}}interracial marriage is still very uncommon. It can be difficult for
interracial couples to find a place to live, maintain friendships, and{{U}}
(49) {{/U}}a family. Marriages between people of different national{{U}}
(50) {{/U}}(but the same race and religion) have been commonplace here
since colonial times.
【答案解析】篇章逻辑题之逻辑衔接。原文想要表达的是,虽然跨阶层和跨信仰的婚姻在增长,跨种族婚姻却依然不常见。上下句构成转折关系,故选择on the other hand。on the average意为“一般地说”;on the whole意为“大体L:、基本上”;on the turn意为“在转变中”。