题目内容
【题目】 As technology in the security field advances, so does the intelligence of the burglars in prevailing over this technology. Gone are the days when a simple alarm system, connected to your phone line, was enough to protect you from potential security risks.
Cellular alarm systems (蜂窝报警系统)are a replacement of the traditional wired phone line security networks. These systems work just like your cell phone. A cellular module is placed in the main control panel and it sends signals, without the use of wires, to the monitoring station. The cellular signal is sent via the data part of a cellular signal, much like a text message.
Sensors can be placed anywhere in your house. Whenever there is an emergency, the relevant sensor picks up the unusual activity and sends a cellular signal to the main control panel. The control panel serves more than one purpose, which sends a cellular signal at the same time to the monitoring service at the back end. The monitoring service later informs the relevant authorities in the form of high-pitched sirens (高音警笛声). Typically it takes a few minutes for emergency services to arrive at the scene. Depending on the efficiency of your monitoring service and the local authorities, help should arrive soon and deal with the potential threats.
It allows you to monitor your house remotely. All you have to do is simply access the cameras from your phone and keep a check for any unusual activities while you are not around. With cellular technology securing your house, you don’t have to worry about the power failure or even burglars cutting your phone lines.
Since these systems operate on batteries, you should be careful about when the batteries die out. There might be other appliances including microwave ovens and WiFi in the house that can cause disruption (干扰). Ensure that your cellular alarm system's range is not affected by the presence of these appliances. Many homeowners tend to go for wireless systems due to the ease of installation (安装)factor. However,keep in mind that a non-professional installation might actually leave the system easy to damage.
【1】What do the underlined words 'prevailing over' mean in Paragraph 1?
A.Improving.B.Defeating.
C.Worrying about.D.Looking into.
【2】How can the authorities know an emergency is happening?
A.They hear high-pitched sirens.
B.They read the cellular signal.
C.They check the control panel online.
D.They notice the unusual activity via sensors.
【3】What can we know about the cellular alarm system?
A.It looks like a phone.B.It is energy-saving.
C.It needs to be improved.D.It is wireless.
【4】What's the purpose of the last paragraph?
A.To give cautions about the system.
B.To introduce the benefits of the system.
C.To call on people to watch out for security risks.
D.To teach people to install the system correctly.
【答案】
【1】B
【2】A
【3】D
【4】A
【解析】
本文是一篇说明文。随着安全领域的技术进步,一种蜂窝报警系统应运而生,相比传统的有线报警系统,这种蜂窝报警系统有着诸多优势。
【1】词义猜测题。根据第一段的As technology in the security field advances, so does the intelligence of the burglars in prevailing over this technology.可知,随着安全领域技术的进步,窃贼prevailing over这些技术方面的智能也在进步。结合句意可推测划线部分的意思是“击败/打败”。B. Defeating. (打败)符合语境,故选B项。
【2】细节理解题。根据第三段的The monitoring service later informs the relevant authorities in the form of high-pitched sirens可知,相关部门听到了高音警笛声,就知发生了紧急情况。A. They hear high-pitched sirens. (他们听到高音警笛声)符合以上说法,故选A项。
【3】推理判断题。根据倒数第二段的It allows you to monitor your house remotely. All you have to do is simply access the cameras from your phone and keep a check for any unusual activities while you are not around. (你可以让它远程监控你的房子。当你不在的时候,你所要做的就是从你的手机上打开摄像头,并检查任何不寻常的活动)可推测,这种系统是无线的,所以可以远程操控。D. It is wireless. (它是无线的)符合以上说法,故选D项。
【4】推理判断题。根据最后一段中you should be careful about when the batteries die out (你应该小心电池什么时候没电了)及Ensure that your cellular alarm system's range is not affected by the presence of these appliances(确保你的蜂窝警报系统不受这些设备的影响)等,可知,该段主要为了介绍使用和安装蜂窝报警系统的一些注意事项。A. To give cautions about the system.(介绍这个系统的注意事项)符合以上说法,故选A项。