1 . Two months ago, an old man failed to travel by underground because he didn’t show his health QR code（健康码）on the smart phone. “ 1 ” the old man asked. “I have money to buy a ticket. Why do I need a smart phone?” In the end, he had to leave the station.
Smart phones has changed our life. On the one hand, they are making our life easier. 2 .
Many old people think the use of smart phones has limited（限制）their daily activities. What can be done to make a difference? Some volunteers are trying to help. 3 However, it only helps to solve part of the problem.
4 For example, poor eyesight（视力）makes reading on small screens difficult. And their less sensitive（灵敏的）fingers make it hard for them to use touch screens. Perhaps these are problems that smart phone makers should try to deal with.
If you meet the old people who have the same problem, please lend a helping hand to them when they need it. And remember to be patient. 5
| A．Maybe it is easy for you but a big problem for the old. |
| B．They teach the old people to use smart phones. |
| C．Old people know how to use smart phones in recent years. |
| D．What is a QR code? |
| E．Scientists are trying to make our life better. |
| F．There are some other problems to the old. |
| G．But on the other hand, they bring new problems for old people. |
