Question

Most of us spend all day at school or work. After a long and busy day, all we want to do is to return to a comfortable home. Smart technology can turn any home into a nicer place to live in.

Smart homes have been around for some time. Scottish company Pico Electronics invented a type of technology called X10 in 1975. It allows household devices（设备）, such as lights and alarms, to communicate with each other by using radio waves, according to AVSytemsMag, a specialized magazine in the audiovisual and automation（视听及自动化）industry.

Of course, 5G network connectivity has made smart homes more convenient. Perhaps the most widespread smart home technology is the voice-activated assistant（语音激活助手）Google Home and Amazon's Alexa allow users to control nearly any device in their home simply by speaking a few words. This is especially convenient for people with physical disabilities, as they can finish tasks that would normally be too difficult, according to How-To Geek.

Common household appliances（家用电器）can become "smart" as well. For example, a smart trash bin can memorize all the things you've thrown away and offer you a shopping list online, while a smart fridge can create dinner recipes（菜谱）based on the vegetables that are being kept inside, according to HowStuffWorks.

But it's not just about convenience. Smart homes are also good for the environment. By regularly checking your energy use and automatically turning off lights and other devices that you're not using, smart homes can lower how much electricity you use overall. Using less energy means that we make less pollution, which is good for the environment.

Not everyone is excited about smart home. In fact, …

1.X10 allows household devices to communicate by _________.

A.using radio waves B.speaking a few words

C.connecting 5G network D.inventing lights and alarms

2.What is Paragraph 3 mainly about?

A.Household devices designed for the disabled.

B.All types of smart household appliances.

C.Further development of smart home technology.

D.Difference between X10 and 5G network

3.How does smart home technology influence our life?

A.Smart trash bins help us find cheap but nice things online.

B.Smart fridges can create proper recipes and cook tasty food.

C.Smart homes will help us save energy and reduce pollution.

D.Smart homes make us stay at home instead of working out

4.The author may introduce the ________ of smart homes in the last paragraph.

A.use B.spread C.future D.disadvantages

Answer

1.A

2.C

3.C

4.D

【解析】

这是一篇说明文。短文主要介绍了智能家居，介绍5G技术在家居生活方面的应用。一是语音激活助手， 二家用电器智能化，三是智能节能。智能技术可以将任何家庭变成更好的居住地，对环境也有好处。

1.

细节理解题，从文根据第二段“It allows household devices, such as lights and alarms, to communicate with each other by using radio waves ”可知家用设备通过无线电波来交流。故选A。

2.

段落大意题，根据“Of course, 5G network connectivity has made smart homes more convenient. Perhaps the most widespread smart home technology is the voice-activated assistant”可知这一段主要介绍5G网络连接使智能家居更加钢鞭。特别是语音激活助手。这一段主要讲述的是智能家居技术的进一步发展。故选C。

3.

细节理解题，根据倒数第二段“Smart homes are also good for the environment”可知5G技术可以定期检查你的能源使用情况，智能关掉不常用的灯或设备，节约能源，对环保有好处。可知智能家居能帮助我们节省能源并减少污染。故选C。

4.

推理判断题。根据“Not everyone is excited about smart home”可知最后一段将介绍智能家居的不好的地方。故选D。