a bird had snatched up the snake from the ground and then dropped it on to the wires .这句了里on to怎么解释,介词可以搭配不定式吗,又启一个什么作用,这是什么语法现象,

问题描述:

a bird had snatched up the snake from the ground and then dropped it on to the wires .
这句了里on to怎么解释,介词可以搭配不定式吗,又启一个什么作用,这是什么语法现象,

这里的to显然不是不定式,因为不定式后面要跟动词这里就是两个介词,一个是on,一个是toon 是静止的,表示在电线上,to是动态的,表示一个落到电线上的过程,比如,go to school,去上学,其实你还没到校呢.on to,这两个介词来...