Question

17．Swimming is one of those activities that can be learned early in life．Little children can learn to swim as soon as they walk．In fact，you need the same skills in walking as in swimming．However，I believe that five is the best age to learn．By five or six，a child knows fear of water，a very important thing to know．It's wise to be afraid，to recognize true danger．Young ones understand that the water can sometimes be very dangerous．
To really benefit from swimming，every swimmer should learn，as soon as possible，these four basic strokes（游泳姿势）； butterfly，backstroke，Breaststroke，and crawl．I feel that one of these-the breaststroke-is different from the others，since some young swimmers use this stroke naturally，without any training．
In swimming there are certain rules every swimmer should follow：
1）．Never swim alone!No matter how good you are in the water，don't risk drowning（溺水，淹死） by swimming alone．If you swim by yourself，with no life guards or friends with you，you may get into trouble．
2）．Don't go beyond your abilities．Most swimmers know enough not to swim too far from the bank or the beach，Showing off by doing dangerous tricks is no good．Swim safely and you will continue to swim and alive．
3）．Don't smoke．Swimming depends on a healthy body； good lungs are part of it．
4）．Work at any activity that builds muscles．
21：Little children can learn to swim as soon asC．
A．they can talk
B．they have no fear of the water 
C．they start walking
D．they are five or six years old
22：The author believes that fear of water isD．
A．stupid            B．not smart        C．dangerous       D．sensible
23：The stroke that some young swimmers use first isA．
A．Breaststroke       B．backstroke      C．Butterfly        D．crawl
24：According to the passage，you should not swim alone becauseC．
A．the water is too cold
B．your parents would not be happy 
C．you might drown
D．something in the water might attack
25．Why the author suggest swimmers not smoke？A
A．Because smoking does harm to lungs．
B．Because they are not allowed to smoke．
C．Becau se smoking is a bad habit．
D．Because they may get into trouble．

Answer 1

分析 文章主要讲述了游泳是在早期能够学习的运动之一，并简单介绍了游泳的类型，及其在游泳过程中必须注意的几点规则．

解答 21．C细节理解题．根据第一段第二句Little children can learn to swim as soon as they walk．可知小孩子在开始走路后，就可以学习游泳，说明C正确．
22．D．细节理解题．根据第一段后半部分By five or six，a child knows fear of water，a very important thing to know．It's wise to be afraid，to recognize true danger．可知，惧怕水能够意识到危险的存在，从而去寻找解决办法，这是一种好的现象；故选D．
23．A 细节理解题．根据第二段最后一句I feel that one of these---the breaststroke is different from the others，since some young swimmers use this stroke naturally，without any training．可知，年轻的游泳者最初就是采用的蛙泳的方式，故选A．
24．C 推理判断题．根据If you swim by yourself，with no life guards or friends with you，you may get into trouble．这里的get into trouble指淹死．故C正确．
25．A 细节理解题．Don't smoke．Swimming depends on a healthy body； good lungs are part of it．由此可知，吸烟对肺不好，而游泳需要一个健康的肺．故答案为A

点评 本文是科教类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．