consider 考虑(v.)+ tion = consideration 考虑（n.）direct 指导(v.)+ tion = direction 方向，指示（n.）反向练习：invention 发明 invent 发明(v.)练习：competition 比赛 compete（注意词尾变i为e）operate 运转，操作 operation (去e加tion) 运转，经营，手术relation 关系 relate 把联系起来suggest 建议 suggestion （1）（易）1.I wrote him a letter to show my _( appreciate )of his thoughtfulness. 2.The first tomb was built at the _(begin) of the 15th century. 3.Painting is a _(create) process. 4.For ou
