when compared with ...能否变成compared with ...when compared with the size of the whole earth ,the biggest ocean does not seem big at all.这句话能否变成:compared with the size of the whole earth ,the biggest ocean does not seem big at all.因为我看到很多句子都是这样开头的Compared with this book,that one is much thicker

问题描述:

when compared with ...能否变成compared with ...
when compared with the size of the whole earth ,the biggest ocean does not seem big at all.
这句话能否变成:compared with the size of the whole earth ,the biggest ocean does not seem big at all.
因为我看到很多句子都是这样开头的
Compared with this book,that one is much thicker

没有理由,都是习惯用法,又不是语法

可以。
但是就没有 when 当。。。的时候 的意思的了

可以.
第一句是when开头的一个时间状语从句.
第二句是动词的过去式开头的一个伴随状语.当然动词ing形式也可以用作伴随状语的.这个句子可以改写成:being compared with.=campared

那么说是没问题
第一句话的意思是
当合整个地球的大小来比较的时候,就算是最广阔的海洋也显得小。
去掉when 了
就是
和整个地球比起来,最广阔的海洋也显得小。