四、构词法记忆法 
  通过掌握构词法来记忆单词。英语主要有三种构词法: 
  1)转化,即由一个词类转化为另一个词类。例如: 
  picture (n)画-picture (v)描绘 
  water (n)水-water (v)浇水 
  例题1: He has trouble understanding that other people judge him by his social skills and conduct. (2003年职称英语卫生类C级) 
  A. behavior 
  B. style 
  C. mode 
  D. attitude 
  答案:A 
  解释: 
  Conduct (v.)引导,管理,为人,传导 
  Conduct (n.)操守,行为 
  Conductor (n.)列车员,售票员,指挥者,导体等 
  Semi-conductor 半导体 
  例题2:The ice is not thick enough to bear the weight of a tank.(2004年职称英语卫生类C级) 
  A. suffer 
  B. accept 
  C. receive 
  D. endure 
  答案:D 
  解释: 
  bear (n.)熊 
  bear (v.)负担, 忍受, 带给, 具有, 挤 
  2)派生,即通过加前缀或后缀构成另一个词,例如: 
  happy→ unhappy(加前缀) happiness(加后缀) 
  例题1: The workers in that factory manufacture furniture. (2003年职称英语卫生类C级) 
  A. promote 
  B. paint 
  C. polish 
  D. produce 
  答案:D 
  例题2: Even in a highly modernized country, manual work is a still needed. (2003年职称英语卫生类C级) 
  A. mental 
  B. physical 
  C. natural 
  D. hard 
  答案:B 
  man-, manu- =hand 
  manage(管理), manual(体力的,手册), manuscript(手写稿), manufacture(生产), manumit(释放) 
  例题3:About one million Americans are diagnosed,annually with skin cancer. (2004年职称英语卫生类C级) 
  A. every year 
  B. severely 
  C. actively 
  D. every month 
  答案:A 
  Ann= year 
  Anniversaire (French) 
  Anniversary, annals(编年史), annuity(年金) 
  3)合成,即由两个或更多的词合成一个词。例如: 
  wood(木) cut(刻)→ woodcut(木刻) 
  pea(豌豆) nuts(坚果)→ peanut(花生) 
  例题1: In the latter case the outcome can be serious indeed. (2003年职称英语卫生类C级) 
  A. judgement 
  B. result 
  C. decision 
  D. event 
  答案:B