21.11 will和would
 
 注意:
 1)would like; Would like to do = want to 想要,为固定搭配。
   Would you like to go with me?
 2)Will you…? Would you like…? 表示肯定含义的请求劝说时,疑问句中一般用some, 而不是any。
   Would you like some cake?
 3)否定结构中用will,一般不用would, won't you是一种委婉语气。
   Won't you sit down?