【正确答案】 D

【答案解析】[听力原文]17-20
Life in the twentieth century demands preparation. Today, all individuals in a country must have adequate schooling to prepare them for their work as well as for their responsibilities as citizens. With this in mind, national leaders everywhere are placing more emphasis on the education of the young.
There is no national school policy in the United States. Each of the fifty states makes its own rules and regulations for its school, but there are many similarities among the fifty school systems. In most states the children are required to attend school until they reach the age of eighteen. When they become six years old, children begin elementary school. After six years in elementary school, they go to junior high school and remain there for three years. The last three
years of their public school education are spent in senior high school, from which they graduate at the age of eighteen.
A great number of high school graduates continue their education in one of the many colleges or universities in the country. After four years they receive a bachelor's degree. Some continue studying for a master's degree and perhaps a doctor's degree.

[精解] 由原文第二句All individuals in a country must have adequate schooling to prepare them for their work as well as for their responsibilities as citizens 可知，为子女提供最好的教育的目的是为了让他们将来有好工作以及成为合格的公民。问题所提供的4个选项当中只有D符合原文意思。故答案为[D]。

【正确答案】 D

【答案解析】[精解] 根据原文第二段可知，各州的教育政策并不完全一致，但there are many similarities among the fifty school systems，也就是说有相似之处。故答案为[D]。

【正确答案】 A

【答案解析】[精解] 该题属于计算题。根据原文After six years in elementary school，they go to junior high school and remain there for three years．The last three years of their public school education are spent in senior high school 可知，需要接受教育的时间为6年小学、3年初中和3年高中。故答案为[A]。

【正确答案】 D

【答案解析】[精解] 该题属于细节题。需要考生在听的过程中作好关键词语的笔记。由原文第二段Public schools in all states are supported by taxes paid by the citizens of the individual state 可知，公立学校的收入来源是来自纳税人的税收。故答案为[D]。