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现代文（文学类）阅读（26分） 布拉格的歌声 [俄]彼特洛·洛斯基 行动之前，杰夫卡夫斯基就有一种强烈的预感，这绝不是一次例行演习那么简单。果然，短短三个小时之后，装甲车队便开入布拉格，而天空的广播也同时传来讯息，这次行动绝不是针对捷克斯洛伐克人民，而是逮捕杜布切克分子(见背景资料)。 守护在布拉格边缘的一条要道，杰夫卡夫斯基和战友一样，他心里非常焦虑，这次取名为“尤里复仇”的行动到底要持续多久? 街对面不远处是5、Federal regulators Wednesday approved a plan to create a nationwide emergence alert （警报） system using text messages delivered to cell phones.     Text messages have exploded in popularity in recent years, particularly among young people. The wireless industry's trade association, CTIA, estimates （估计） more than 48billion text messages are sent each month.     The plan comes from the Warning Alert and Response Network Act, a 2006 federal law that requires improvements to the nation's emergency alert system. The act tasked the Federal Communications Commission （FCC） with coming up with new ways to alert the public about emergencies.     "The, ability to deliver accurate and timely warnings and alerts through cell phone sand other mobile services is an important next step in our efforts to help ensure that the American public has the information they need to take action to protect themselves and their families before, and during, disasters and other emergencies," FCC Chairman Kevin Martin said following approval of the plan.     Participation in the alert system by carriers -telecommunications companies is voluntary, but it has received solid support from the wireless industry.     The program would be optional for cell phone users. They also may not be charged for receiving alerts.     There would be three different types of messages, according to the rules.     The first would be a national alert from the president, likely involving a terrorist attack or natural disaster. The second would involve "approaching threats," which could include natural disasters like hurricanes or storms or even university shootings. The third would be reserved for child abduction （绑架） emergencies, or so-called Amber Alerts.      The service could be in place by 2010. 1. What is the purpose of the approved plan? A．To warn people of emergencies via messages. B．To popularize the use of cell phones.     C．To estimate the monthly number of messages. D．To promote the wireless industry. 2. The improvement to the present system is in the charge of________. A．CTIA              B the Warning Alert and Response Network C．FCC               D．federal regulators 3. An alert message will NOT be sent if________. A．a child loses his way B．a university shooting happens C．a natural disaster happens D．a terrorist attack occurs 4. Which of the following would be the best title for the text? A．Cell Phone Alerts Protecting Students B．Cell Phone Alerts by Wireless Industry C．Cell Phone Alerts of National Disasters D．Cell Phone Alerts Coming Soon