intellectual and complex strategy（策略）and simulation（模拟）games. Internet Chess and Train Simulator are among the most popular of these. Train Simulator is based on real-world rail activities. Players can choose from a variety of challengers, such as keeping to a strict-timetable and using helper engines during a winter storm.

　　Some people argue that 揼rey gamers? simply don't have the skills required for computer games, and that teenagers are better. This couldn't be further from the truth. Most computer games require the kind of analytical thinking that improves with practice, which means that the 揼rey gamers may well be far better than gamers half a century younger than them.

4. The second paragraph is intended to ________.

A. show the best way to exercise the brain B. stress the importance of good health

C. explain why grey gamers exist D. teach how to play videogames

5. What was older people's attitude towards their using personal computers at first?

A. Doubtful B. Indifferent C. Enthusiastic D. Supportive

6. The method the author uses to develop Paragraph 4 is ________.

A. offering figures B. giving examples

C. quoting experts' words D. providing charts

7. By saying 揟his couldn't be further from the truth.? in Paragraph 5, the author means ________.

A. mind challenging games are not suitable for older people

B. children should improve their skills with practice

C. playing computer games requires analytical thinking

D. older people can perform well in some computer games

【答案】4. C 5. A 6. B 7. D

【解析】

【分析】

本文是一篇说明文。玩电脑游戏是锻炼大脑的一种非常有效的方法。通过本文可知，年纪大的人在一些电脑游戏中表现得很好。

【4题详解】

推理判断题。根据第二段最后一句Playing computer games is a very effective way of exercising the brain. （玩电脑游戏是锻炼大脑的一种非常有效的方法。）可知，第二段的目的是解释