19．Using mobile phones in the daily lives of students has become common．However，how they use them has changed a lot in the last few years．Although phones are still widely used for communication，a recent survey shows that most students think chatting on mobile phones is now old-fashioned．
Researchers interviewed 1000teens between 14and 19about their mobile phone habits．The findings were then compared to a 2010survey．The results are shown below：
Communication | Mobile phone activities | 2010 | 2016 |
| chatting | 11% | 18% |
| sending messages | 28% | 9% |
| talking | 10% | 21% |
| Entertainment | watching movies | 8% | 10% |
| playing games | 16% | 17% |
| listening to music | 17% | 13% |
| suffering the internet | 10% | 12% |
Perhaps in the near future，mobile phone uses will change again and students may use them more in their lessons．However，the time spent on mobile phones should be controlled．Parents should encourage their kids to use their mobile phones more properly．
46．The most popular mobile phone activity in 2010wasD．
A．Chatting．
B．Talking．
C．Playing games．
D．Sending messages．
47．The percentage of time spent on communication in 2010wasD．
A.11%．
B.28%．
C.10%．
D.49%．
48．Which were the first two most popular mobile phone activities in 2016？A
A．Chatting and talking．
B．Talking and playing games．
C．Playing games and listening to music．
D．Sending messages and watching movies．
49．Which of the following is TRUE according to the passage？D
A．The number of students chatting on the mobile phones has reduced．
B．Most students in 2016spent their time talking on the mobile phones．
C．Fewer students are interested in playing games on the mobile phones．
D．Listening music on mobile phones becomes less popular now．
50．The passage is a（an）B．
A．story
B．report
C．advertisement
D．opinion．
