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 Act

　　C. FCC

　　D. federal regulators

　　3. The carriers’ participation in the system is determined by　.　

　　A. the US federal government

【2017届黑龙江省五常市高三英语一轮阅读理解训练（1）】相关文章：

★ 2017届高考英语二轮复习课时训练：14（含解析）

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：解题技巧（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (62)

★ 2017届高考英语二轮复习大题冲关秘籍语法填空：创新押题（含解析）

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（10）附答案

★ 2017高考四川省广安市英语阅读理解一轮系列训练：28（含解析）

★ 2017高考四川省广安市英语阅读理解一轮系列训练：12（含解析）

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（7）及答案

★ 四川省广安市2014高考英语一轮基础训练题（11）及答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (6)