1.have you ever seen grass growing high as a tree--- even a tall tree? 问:growing high as a tree 是________________作_________, 相当于定语从句_________________________________. eg:1). the taxi taking(=____________) us to the airport broke down. 2). can you think of the name of a flower beginning(=_______________) with “t”? 扩展:v—ed, to do也能作后置定语。