pass across是横过,跨过的意思,一般是在表面上穿过.如横过马路.Be careful when you pass across the street.
pass through也是穿过的意思,不过它是指在空间上穿过,如果在隧道里,电线里.如果:1. the cars are going fast through the tunnel .
Electricity passes through the wire.
put on是穿上的意思,强调动作.如:
It's cold outside, put on the coat.
---what are you doing?
---i am putting on my coat.(我正在穿衣服)(这两处都不能用dress代替,因为这里表是一个动作)
而dress是表是一种状态,如:
she is dressing a nice skirt.(她穿着一件好看的裙子)
应该够清楚了吧?哈哈
参考资料:我的专业知识