Today, an increasing number of people are always looking at their mobile phones with their heads down. These people are called the “Heads-down Tribe（低头族）”. Are you a heads-down tribe m____? Heads-down tribe members now can be seen everywhere.

    More and more traffic accidents are h____ because more drivers use mobile phones when they are driving. In order to make drivers pay more attention to driving, some new traffic rules have been made. For example, people who use mobile phones while driving in Taiwan are fined（罚款）.

    As we can see above, u____ mobile phones may cause accidents and even cost a lot of money. Also, more and more interesting and strange facts happen to the “Heads-down Tribe”. Let's have a look at an interesting TV r____. A man in America k____ using his mobile phone on his way home. As a result, he knocked into a big lost bear. When he lifted his eyes from the phone, he was so a____ that he turned around and ran away quickly. Another fact is that we can often see people in the restaurant eating face to face but looking at their o____ mobile phones. It's strange that they don't talk to the ones who sit opposite to them d____ the meal. Some of them even have fun communicating with o____ on the phone.

    Mobile phones are helpful and necessary tools for modern life. Are mobile phones good or bad? It depends on h____ people use them. Let's be “healthy” users and try to be the “Heads-up Tribe.”