1、GrammarTheusageof“it”Itisnevertoooldtolearn.活到老,学到老。Itisnousecryingoverspilt(溢出的)milk.覆水难收。Ittakesthreegenerations(代)tomakeagentleman.十年树木,百年树人。Proverbs(谚语)with“It”Theuseof“it”一、作代词的用法(包括人称代词和非人称代词)二、作形式主语或作形式宾语四、用在强调句中(后两种结构考查的次数最多)三、用在固定搭配中Xi’anis a beautiful city,isn’tit?Theyw