You may know a lot about smart(智能的) phones. But what about smart cities?

Imagine living your life like this：When you wake up in the morning，you say, “open the window” to a computer and it opens the window. The sunshine is shining and the birds are singing. Then you finish breakfast and sit in front of your desk and begin to have classes through the Internet. 1. With the help of building a smart city, this may become true one day.

A smart city uses digital technologies（数字科技）such as the Internet to improve city planning, 2.节约能源，并使我们的生活更轻松。   For example, people live in smart cities, where there is Internet almost everywhere. 3. They can do many things at home such as booking train tickets and paying water bills. What a beautiful life it is!

4.现在，中国正实现一些城市智能化。 For example, Tianjin is going to build free Wi-Fi in the whole city. Chongqing plans to start a smart city program to help traffic problems. Changsha is creating a smart city, 5.因此每个人都应该为创建智慧城市发挥作用。

1. __________________________________
2. __________________________________
3. __________________________________
4. __________________________________
5. __________________________________