第二篇 Cell Phones: Hang Up or Keep Talking?
Millions of people are using cell phones today In many places it is actually considered unusual not to use one. In many countries, cell phones are very popular with young peopIe. They find that the phones are more than a means of communication- having a mobile phone 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 In England, there has been a serious debate about this issue Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.
www.med126.comOn the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be detected with modern scanning（扫描)equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss He couldn't remember even simple tasks. He would often forget the name of his own son. 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. His family doctor blamed his mobile phone use, but his employer's doctor didn’t agree
What is it that makes mobile phones potentially harmful? The answer is radiation High-tech 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 their safety continues, it appears that it's, best to use mobile phones less often Use your regular phone if you want to talk for a long time Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. 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.
41. People buy cell phones for the following reasons EXCEPT that
A. they're popular B. they're cheap
C. they're useful D. they're convenient.
42. The word "detected" in paragraph 3 could be best replaced by
A. cured B. removed C. discovered D. caused
43. The salesman retired young because
A. he disliked using mobile phones
B. he was tired of talking on his mobile phone
C. he couldn't remember simple tasks.
D. his employer's doctor persuaded him to
44. On the safety issue of mobile phones. the manufacturing companies
A. deny the existence of mobile phone radiation.
B. develop new technology to reduce mobile phone radiation
C. try to prove that mobile phones are not harmful to health
D. hold that the amount of radiation is too small to worry about
45. The writer's purpose of writing this article is to advise people
A. to buy mobile phones B. to update regular phones
C. to use mobile phones less often D. to stop using mobile phones
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www.med126.comI Know Just How You Feel
Do you feel sad? Happy? Angry? You may think that the way you show these emotions is unique. Well. think again Even the expression of the most personal feelings can be classifIed. according to Mind Reading. a DVD displaying every possible human emotion it demonstrates 412 distinct ways in which we feel: the first visual dictionary of the human heart.
Attempts to classify expressions began in the mid-1800s. when Darwin divided the emotions into six types - anger. fear. sadness. disgust, surprise and enjoyment.
(46} Every other feeling was thought to derive from Darwin's small group
More complex expressions of emotion were probably learned and therefore more specific to each culture. But now it is beIieved that many more facial expressions are shared worldwide
(47) The Mind Reading DVD is a systematic visual record of these expressions
The project was conceived by a Cambridge professor as an aid for people with autism(孤独症). who have difficulty both reading and expressing emotions. But it quickly became apparent that it had broader uses Actors and teachers, for example. need to understand a wide range of expressions. The professor and his research team first had
to define an "emotion' (48) Using this definition.1.512 emotion terms were identified and discussed This list was eventually reduced to 412. from 'afraid' to "wanting".
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