C. the carriers themselves
D. the law of the United States
【答案解析】答案为C。细节理解题。根据文章第五段Participation in the alert system by carriers—telecommunications companies—is voluntary一句可知。
【备考策略】利用关键词participation进行细节内容的排查、比对。
64. Which of the following is true of cell phone users?
A. They must accept the alert service.
B. They may enjoy the alert service for free.
C. They must send the alerts to others.
D. They may choose the types of messages.
【答案解析】答案为B。细节理解题。根据文章They also may not be charged for receiving alerts.一句可知。选项A、C、D明显不正确。
【备考策略】这类细节题需要对四个选项进行逐一排查,增加了做题的难度,需要针对选项中的关键词进行快速查找,并做出判断。
65. 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
【答案解析】答案为A。细节理解题,同时也是一道逆向思维的题目。根据文章倒数第二段列举了一些需要对公众进行警告的内容,可以进行排查。
【备考策略】对于这样的题目,一定要细心读题,不可匆忙决断,在不仔细阅读题干的前提下就做出选择,往往是不正确的。本题中选项B、C、D都是正确内容,但都不是要选择的答案。
66. 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 Natural Disasters
D. Cell Phone Alerts Coming Soon
【答案解析】答案为D。主旨大意题。文章第一段即是主旨所在。选项A缩小了文章内容表达的范围;选项B不是本文所要表达的中心内容,明显不正确;选项C太片面,根据文章倒数第二段中a terrorist attack or natural disaster一句可以排除。
【备考策略】本文是一则新闻报道类的文章,这样的文章往往第一句话就是全篇主旨所在。
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