It cause the level of the ocean to rise.

题目

It cause the level of the ocean to rise.
I use the pen to write with(the pen).
It's hard to understan(it).
而 It cause the level of the ocean to rise.（rise是不及物动词）
为什么有些不定式的逻辑宾语在前面,而rise又是怎么回事?

答案

句子主干 是什么?I write ,it understand ,it rise.这些是什么：use the pen to、is hard to、cause the level of the ocean to.简单说是介词短语作,类似副词修饰动词的.