18. Today we tend to live in small nuclear families rather than large extended families. At the same time parents tend to have fewer children because it costs so much to bring children up.
现在，人们更倾向于生活在凝聚的小家庭里而不是大家庭里。同时夫妇更倾向于少生孩子因为抚养孩子的花费太大。
19. Women traditionally stayed at home to cook,clean and look after children, but now it has been normal for women to gain qualifications and pursue a career.
传统女性都是待在家里做饭，打扫和照看孩子，但是现代女性去考取认证或追求一份职业已经变得非常普遍了。
20.The lack of closeness in families can have a negative effect on children. Friends, television and the Internet become the main influence on children’s behavior so juvenile delinquency is on the increase.
家庭成员之间缺少亲近会对孩子产生消极影响。朋友，电视和网络会成为影响他们行为的主要因素，青少年的违法行为也会上升。
21. In the past, divorce was unacceptable but it has become much more common and socially acceptable nowadays. But children from single-parent families are more likely to get lower grades or drop out of school.
在过去，离婚是不被社会接受的，但是现在离婚已经变得非常的普遍和被接受了。但是在单亲家庭长大的孩子往往学习表现不好或者退学。
