此部分还着重界定了论文写作过程中所涉及到的一些基本概念，介绍了国内外单亲家庭的存在概况。

It also redefine some basic conception appeared in the thesis compare the family educational model <em>single</em> <em>parent</em> <em>family</em> with whole family.

有犯罪记录的大多来自单亲家庭。

Those with a criminal record mostly come from single parent families.

该市儿童在单亲家庭中长大的比例很低。

The city has a low prevalence of children growing up in single-parent families.

近年来，依赖政府的单亲家庭数量大幅增加。

The number of single-parent families dependent on the state has risen enormously in recent years.

我们都是典型的单亲家庭。

We were a typical single-parent family.

你怎么看待孩子成长于单亲家庭？

What do you think about kids growing up in single-parent homes?

新法规即将实施以匡助单亲家庭.

New legislation is to is introduced to help single parent families.

在美国有许多单亲家庭和再婚家庭.

There are many single parent families and remarried families in the United States.

美国有孩子的家庭中，30%都是单亲家庭，而这其中有85%的单亲家庭由女性独自承担养家的责任。

About 30 percent of families with children are led by a single parent, with 85 percent of those led by a woman.

最常见的单亲家庭类型是由一位单身妈妈和她的孩子组成的家庭。

The most common type of single-parent family is one that consists of a mother and her biological children.