1.seat vt.“使...就座/坐下”.
1）结构：seat sb/sth/oneself + (介宾/副词).
如：The usher seated us in the front row.
引座员让我们在前排就座.
She seated herself on the table.
她坐在桌子上.
2）该结构变成被动语态,即：be seated + (介宾/副词).
2.dress
1) vt.“给…穿衣,穿着”,结构：dress sb/oneself + (介宾/副词),常用的介宾有“in + 衣服”.
如：The little boy isn't old enough to dress himself.
这孩子太小,还不能自己穿衣服.
该结构变成被动语态,即：be dressed + (介宾/副词).
如：She is dressed in a red coat.
2）vi.“装饰,打扮”,结构：dress + （介宾/副词),常见介宾有“in + 衣服”或“as...”,常见副词如up.
如：They dressed up and went to the prom.
他们盛装去参加舞会.
The two young men dressed as students.
这两个年轻人的打扮跟学生一模一样.