将下面这几个段落重新按正确的顺序排列，并指出顺序排列的方法：

题目描述

将下面这几个段落重新按正确的顺序排列，并指出顺序排列的方法：1)By the end of the 19th century a majority of Americans were living in urban areas，and the family was very much influenced by the rapid development of industrialization.With the arrival of immigrants，the family pattern became varied.2)The major change in the family in this century has been due to married women entering the workforce.This，at least for periods of time.has taken the woman out of the fulbtime involvement in the home.3)Many changes have occurred in the American family.In the late 18th century almost 63 percent of all persons lived in the households of five or more people and women usually slayed at home looking after children and doing chores.4)In the 20th century.the ideal American family consisted of a husband and wife living with dependent children.They lived in a household of their own provided for by the husband’S earnings.The wife was responsible for emotional maintenance of the marriage and for raising the children and running the household.