答案及解析：
1．文章标题及文章结构分析：
Public and private schools in the United States
Religious and private schools receive little or no support from public taxes in the United States, and, as a result, are usually somewhat expensive to __1__, the large group of religious schools in America __2__ by the Roman Catholic Church, while religious schools tend to be __3__ expensive than private schools, there are usually some fees.
When there is free education available to all children in the United States, why do people __4__ money on private schools? Americans offer __5__ great variety of reasons for doing so, including the desire of some parents to __6__ their children to schools __7__ classes tend to be smaller, or where religious instruction is included as part of the educational system, or because __8__ their opinion, the public schools in their area are not __9__ high enough quality to meet their needs. Private schools in the United States __10__ widely in size, quality, and in the kind of program that are offered to meet __11__ of certain students.
The degree __12__ American parents are active in their children’s schools is often __13__ to people of other countries. Most schools have organizations __14__ of both parents and teachers, usually called P.T.A. for parents-teacher association. They meet together to __15__ various matters concerning the school. Parents often give their time to help with classroom or after school activities.
2．接看被选项解题：
1.A. go B. attend C. take part in D. enroll
1． Religious and private schools receive little or no support from public taxes
2． in the United States, and, as a result, are usually somewhat expensive to __1__,
1．B． 分析：抓住被选项特点：B，C和D（vi/vt.）都是及物性动词（动词短语），而只有A不是，由此排除A。借助语法结构：不定式结构to.. 与前面的schools有关，借助搭配判断B合适。
考点：考察习惯搭配。
attend/go to school/上学
attend a meeting/参加会议；Attend a class/上课
take part in (discussion, activities)/参加讨论，活动等
enroll sb. in 登记注册
2.A. were run B. run C. is run D. is running
The large group of religious schools in America __2__ by the Roman Catholic Church.
2. C 分析：考点：考察主语谓语一致性原则。
run: v. 竞选, 延伸向, 控制，管理，冒（危险等）,操作
e.g. ran for mayor/竞选市长
e.g. This road runs to the next town./这条路伸向临近的一个镇
e.g. run the campaign管理比赛
e.g. run a risk冒一次险
e.g. run a machine操作机器
3. 3.A. less B. more C. rather D. much
While religious schools tend to be __3__ expensive than private schools, there are usually some fees.
3. A 分析：利用被选项特点：A和B是正反项。借助句意判断A是答案。
考点：考察while揭示的逻辑意义。
4.A. spend B. pay C. cost D. take
When there is free education available to all children in the United States, why do people __4__ money on private schools?
4. A． 分析：考察近义词的搭配使用特点。
Spend time/money on sth./in doing sth.
Pay (money) for.../
Cost (sb.) money/time/
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