34.remind; clean; build; expect; finish; use; few; convenient |
Skyscrapers (摩天大楼) and traffic jams are often seen in today's big cities. But what will the cities of the future look like?
They will look "smarter", for one thing. A smart city is a city that uses digital (电子的) technology, such as 5 G networks and the "Internet of things". These technologies can improve urban planning, save money and resources (资源) and bring more (1)
to our life.
For example, by using sensors and 5 G networks to check the usage of water, gas and electricity, we can find out how to use these resources more efficiently. Imagine if water and gas pipes (管道) could (2)
repair workers when there is a problem, won't that be a great thing?
Some cities around the world are already using smart technology to improve peoples lives. In Baltimore, US, smart trash bins can sense how full they are and tell workers when they need to be (3)
. In Amsterdam, there is real-time traffic data collected from sensors around the city. There are (4)
traffic jams than before.
In the city of Songdo in South Korea, people's homes, government (政府) buildings and streets are all "online". By simply swiping a smart card, people can open doors, pay bills and check their health records.
Of course, it will take time (5)
the smart cities of the future. But it won't be long until more cities join in. It is (6)
that more than 60 percent of the world's population will live in smart cities by 2050, according to Tech Republic.