2011年职称英语考试综合类B级真题
29. Good leaders always avoid ___.
30. Self-confidence is the key to ___.
A. the ability to work with others
B. encouraging group members
C. lackofgoodleaders
D. overcoming fears about being a leader
E. bossing people around
F. working out good strategies
第4部分：阅读理解（第31~ 45题，每题3分，共45分）
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
第一篇
Cell Phones: Hang Up or Keep Talking?
Millions of people.are using cell phones today. In many places it is actually considered unusual n.ot to use one. In many countries, cell phones are very popular with young people. 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.
On 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 memorbr 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 doctordidn'tagree.