Question

17．If you know the following fact，you'll understand why many people suffer from foot problems．The average person walks the equivalent of three times around the Earth in a lifetime．That is enormous wear and tear on the 26 bones，33 joints and more than 100 muscles that make up the foot．
In a recent survey for the American Podiatric Medical Association，53 percent of respondents reported foot pain so severe that it affected their daily function．On average，people develop pain in their 60s，but it can start as early as the 20s and 30s．And usually women give care to their feet while men don't．"A lot of people think foot pain is part of the aging process and accept it，and  walk with pain，"said Dr Andrew Shapiro．Though some foot problems are inevitable，their progress can be slowed．The following questions will help you assess whether you should take more preventive action as you age．Do you have flat feet or hig harches（足弓）？Either puts feet a trisk．Shoes that support the arch and heel can help flat feet．People with high arches should look for roomy shoes and soft erpadding（衬垫）to absorb the shock．Proper exercises also strengthen muscles，supporting the foot．
Do your shoes fit？In the survey，more than 34 percent of men said they could not remember the last time their feet were measured.20 percent of women said that once a week they wore shoes that hurt，and 8 percent wore painful shoes daily．Feet flatten and lengthen with age，so if you still stick to the shoe size you wore at the age of 21，get your feet measured．Do you walk？Putting more mileage（里程）on your feet is the best way to exercise the muscles and keep them healthy．

43．The underlined phrase"wear and tear"in Paragraph 1 probably meansC．
A．a  surprising experience    
B．an unimaginable distance   
C．damage due to continuous use
D．a contribution to the feet
44．What do we know from the passageC？
A．The number of men and women who have foot problems is similar．  
B．Walking as little as possible can protect your feet from pain．    
C．More than half of there spondent shave serious foot problems．   
D.53% of people develop foot pain in their 60s．
45．Which of the following statements best explains foot painA？
A．Not all of it can be avoided．  
B．People can't slow its process．   
C．Walking more will stop foot pain．  
D．Preventive actions can't work well．
46．If your feet are 26cm long at 23，what is the probable length of your feet when you are 43？A
A.26.2cm   
B.25.2cm   
C.26cm   
D.25cm．

Answer 1

分析 本文主要讲述了很多人会受到脚痛的困扰．根据调查显示，一半以上的人觉得脚痛严重影响了他们的日常功能．然而足部问题是不可避免的，因此我们要加强锻炼来保持脚部的健康．

解答 43．C 细节理解题．根据第一段The average person walks the equivalent of three times around the Earth in a lifetime．That is enormous wear and tear on the 26 bones，33 joints and more than 100 muscles that make up the foot．可知平均每人走一生的路相当于绕地球三圈．这是对26块骨头，33个关节和100多个肌肉组成的脚的巨大磨损，故选C．
44．C 细节推断题．根据第二段In a recent survey for the American Podiatric Medical Association，53 percent of respondents reported foot pain so severe that it affected their daily function．可知有一半的人脚痛很严重，影响到了他们的日常生活，故选C．
45．A 细节理解题．根据第二段Though some foot problems are inevitable，their progress can be slowed．The following questions will help you assess whether you should take more preventive action as you age．可知脚痛是不可避免的，故选A．
46．A 细节理解题．根据第三段Feet flatten and lengthen with age，so if you still stick to the shoe size you wore at the age of 21，get your feet measured．可知脚扁平和长度会随着年龄的变化而变化的，如果你还坚持21岁时的脚长的话，你必须得重新量一下你的脚了，故选A．

点评 本文考察学生的理解推断能力以及细心程度，只要抓住文章的关键词，采用寻读的方法查找细节，就能找到正确答案．