Cellphones: hang up or keep talking
Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. __1__ They find that the phones are more than a means of communication—having mobile phones shows that they are cool and connected.
The explosions around the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. Mobile phone companies are worried about the negative publicity (负面报道) of such ideas. __2__
On the other hand, signs of change in the issues of the brain and head can be detected with modern scanning equipment. In one case, a travelling salesman had to retire at a young age because of serious memory loss. __3__ This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years.
__4__ The answer is radiation (辐射). Hightech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.
As the discussion about the safety continues, it appears that it's best to use mobile phones less often.
__5__ Use your mobile phone only when you really need it. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.
A．They say that there is no proof that mobile phones are bad for your health.
B．They will possibly affect their benefits.
C．In many countries, cell phones are very popular with young people.
D．Use your regular phone if you want to talk for a long time.
E．He couldn't remember even simple tasks.
F．What do the doctors worry about?
G．What is it that makes mobile phones potentially harmful?
文章讲述的是今天数以万计的人在使用手机，在许多国家，手机很受年轻人的欢迎。一些医生担心将来许多人会因为使用手机而遇到健康问题，但是没有证据证明手机有害健康。明智的做法是不要经常使用手机。
1．C
解析：根据下文“They find that the phones are more than a means of communication—having mobile phones shows that they are cool and connected.”可知他们发现手机不仅仅是一种交流工具，手机还会让他们看起来很酷。they指代young people。故C项(在许多国家，手机很受年轻人的欢迎。)符合语境。
2．A
解析：根据“Mobile phone companies are worried about the negative publicity (负面报道) of such ideas.”可知手机公司担心负面报道。他们说没有证据证明手机有害健康。且本段围绕健康问题进行说明，故选A。
3．E
解析：根据“In one case, a travelling salesman had to retire at a young age because of serious memory loss.”可知在一个案例中，一个经常出差的推销员不得不在很年轻的时候退休，因为他的记忆力严重丧失。他甚至连简单的任务都记不起来了。故选E。
4．G
解析：根据“The answer is radiation (辐射)．”可知空处是在问是什么使手机有潜在的危害。故选G。
5．D
解析：根据下文“Use your mobile phone only when you really need it.”可知只有在你真正需要手机的时候才使用它。D项(如果你想通话很长时间，就用普通电话。)符合语境。
