首字母介词形容词（注意比较级和最高级）副词(注意比较级和最高级)名词（注意单、复数）代词动词(注意时态/主谓一致/否定式)连词数词备注 (扩展)aagainst,above, across,after, about,along, among,around, as, atanother,angry,able,active, afraid,alive,alone,ancient, any,Asian,asleep,available,abroad,again,ago,almost, already,always,anyway, anywhere,around,away, also,along,as,animal,afternoon,accent,accident,act,action,advantage,advice, afternoon,agreement,age,area,activity,ability,air,airport, animal, ant,apple,April,area,army,art,attentio
