Most of us spend all day at school or work. After a long and busy day, all we want to do is returning to a comfortable1. Smart technology can turn it into a nicer place to live. Smart homes have been around for some time. A Scottish company invented a type of technology called X10 in 1975. It2 household devices, such as lights and alarms, to communicate with each other by using radio waves.
Of course, 5 G network connectivity has3smart homes much more unbelievable than X10. Perhaps the most widespread smart home technology is the voice—activated assistant（语音激活助手）. Google Home and Amazon Alexa allow users to interact with nearly any device in their home simply by4a few words. How wonderful that sounds!This is5convenient for children and people with physical disabilities, as they can finish tasks 6would normally be too difficult.
Common household appliances（家用电器）can become" smart"as well. For example, a smart trash bin can keep track of the things you've7 and place an online order for new items, while smart refrigerators can create dinner recipes（菜谱）based on the8 that are kept inside.
Besides its convenience, smart homes are also good for the environment. 9regularly checking your energy use and automatically（自动地）turning off lights and other devices that you're not using, smart homes can lower how much electricity you use overall. Using10energy means that we use fewer natural resources, which is good for the environment.
