单选题
Read the following passage and decide which answer best fits each space. For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.Participation【C1】______high school sports is not a constitutional right.【C2】______. it is a privilege, paid for by taxpayers, open to students who promise to【C3】______certain conduct requirements on and off the field. One of these promises is to【C4】______from using drugs. Drug use is a serious problem among high school students. Studies show that as many as 500, 000 high school students use muscle-pumping, life-destroying substances such as steroids. Many more use illegal drugs,【C5】______cause discipline problems and【C6】______the stage for lifelong【C7】______. Drug testing works to【C8】______and identify use. That is why drug testing is required to compete in the Olympics, the National Collegiate Athletic Association and the National Football League.【C9】______drug testing was instituted by these organizations, use of performance-【C10】______drugs has been greatly reduced. We should want【C11】______in schools. Indeed, many athletes【C12】______testing programs, and no wonder. Without testing, athletes have to choose between drug use and a competitive disadvantage【C13】______the field. Those who challenge the need for drug testing may be forgetting【C14】______it is like be an adolescent. Peer pressure is enormous, and one of the few effective counter-weights is the fear of being caught. More importantly, once drug use is【C15】______, a school can【C16】______to the student before he or she gets addicted or arrested. For 25 years, public schools【C17】______by federal judges and civil libertarians, with results everyone can see. It is time【C18】______decisions on how to run public schools locally【C19】______officials. There is nothing unconstitutional about asking those who gain the advantages of school-sponsored athletics to contribute to the safety of other players, the integrity of the game and their own well-being. The Supreme Court should leave these programs【C20】______.
【答案解析】解析：考点：习惯搭配。分析：固定词组set the stage for sth．表示“为某事做好准备或创造条件”，因此选项A．set正确。又如：The president's recent death set the stage for a military coup．(总统最近死后，一场军事政变开始酝酿。)
【答案解析】解析：考点：逻辑关系。分析：根据主句中所使用的完成时态，可判断选项A．since“自从……以来”正确。本句的意思是：“自从这些组织实行药检以后，使用能……表演的毒品的现象大大减少”。又如：Where have you been since I last saw you?(我上次见到你以后，你到什么地方去了?)
【答案解析】解析：考点：习惯搭配。分析：介词in和field相搭配，表示“在田地里”(如in the cotton fields)或“在某一领域里”(如in the field of politics)，而介词on与field相搭配构成词组on the field，表示“在竞技场上”。因此，选项C．on代入句中符合题意，并与上文on and off the field(赛场内外)相对应。
【答案解析】解析：考点：词组辨析。分析：本句意为：“更为重要的是，一旦确认有学生服用了毒品，学校可在他上瘾或者被捕之前______。”4个选项的意思分别是：A．break out“爆发”；B．reach out(to dosth．)“伸出手，援助”；C．stretch out“延伸，伸展，拉长”；D．check out“检查，结账(离开)”。只有选项B．reach out符合题意，故该选项正确。又如：We must reach out to those in need．(我们应该伸出援助之手，帮助有困难的人。)
单选题
【C17】
【正确答案】
A
【答案解析】解析：考点：谓语时态。分析：根据本句状语“for 25 years”，可以判断该句应为完成时。又因为该句表示从过去某个时间开始一直到现在的动作，故应为现在完成时，因此选项A．have been run正确。
单选题
【C18】
【正确答案】
C
【答案解析】解析：考点：固定结构。分析：本句使用了“It’s time(for sb．)to do sth．(return decisions on…)”句型，因此选项C．to return正确。又如：It’s time for us to go．(我们现在该走了。)