16．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"．Are you a heads-down tribe member Heads-down tribe members now can be seen everywhere．
More and more traffic accidents are happening 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，heads-down tribe members who use mobile phones while driving in Taiwan are fined（罚款）．Car driver and motorcyclists who break the traffic rule will be fined NT3，000andNT1，000respectively．（分别地）
As we can see above，using 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 report．A man in America kept using his mobile phone on his way home．As a result，he bumped into a big lost bear．When he lifted his eyes from the phone，he was so scared that he turned around and ran away as quickly as possible．Another fact is that we can often see people in the restaurant eating face to face but looking at their own mobile phones．It's strange that they don't talk to the ones who sit opposite to them during the meal．Some of them even have fun communicating with others on the phone．
Mobile phones are helpful and necessary tools for modern life．Are mobile phones good or bad It depends on how people use them．Let's be"healthy"users and try to be the"Heads-up Tribe"．
46．What do we know about the"Heads-down Tribe"D
A．They are cool children．
B．They are dangerous driver．
C．They are good at using the Internet．
D．They are always looking at their mobile phones．
47．What does the underlined word"motorcyclists"in the passage mean in ChineseA
A．摩托车手
B．手机使用者
C．低头族
D．汽车司机
48．The American wasCwhen he knocked into the bear．
A．driving a car
B．going to work
C．using his mobile phone
D．singing a song
49．According to the passage，what do the"Heads-down Tribe"do when they eat in a restaurant？C
A．They look at their own mobile phones
B．They don't talk to the people who sit opposite．
C．Both A and B
D．They talk to the strangers who sit next to them．
50．What is the main idea of the passageD
A．Let's try to be the"Heads-down Tribe"．
B．Mobile phones are helpful and necessary．
C．Mobile phones are not good for people．
D．We should use mobile phones rightly．
分析 今天，许多人总是低头看着自己的手机，成为了"低头族"．因为越来越多的驾驶员开车时用手机，造成了更多的交通事故．也闹出了一些笑话．所以作者提议：健康地使用手机，做"抬头族"．
解答 46．D 细节理解题．由短文第一自然段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可知，人们把总是看着手机的人们称为"低头族"．故选D．
47．A 词义猜测题． 从该句中的"break the traffic rule"（违反交通规则）可以推测出本空与"驾驶员"相关，故选A．
48．C 细节理解题．从短文第3自然段的"A man in America kept using his mobile phone on his way home．"（一位美国人在路上不停地使用手机），可知，本题选C．
49．C 细节理解题．由短文倒数第2自然段Another fact is that we can often see people in the restaurant eating face to face but looking at their own mobile phones．It's strange that they don't talk to the ones who sit opposite to them during the meal．Some of them even have fun communicating with others on the phone可知，在饭店吃饭时，玩手机爱好者是盯着手机，不与人说话．故选C．
50．D 题目推断题．根据文章内容可知短文说明了过度地、不恰当地玩手机给人们生活带来的一些问题，告诫人们恰当地使用手机．故选D．
点评 做题时要在理解好文意的基础上，与题目有机的结合，从文章中找到相关细节性的句子与选项细细比对，进行选择或推理判断，选出符合文章内容的正确选项．做题注意灵活，有时可采用排除法或直选法确定出最终答案．
