Though in those days,travelling was not as easy as it is today,steam boats carried thousands...（1）其中travelling was not as easy as it is today,在整句话中做什么成份?（2）as easy as it is又做什么成分?（3）travelling为什么要加ing?
问题描述：
Though in those days,travelling was not as easy as it is today,steam boats carried thousands...
（1）其中travelling was not as easy as it is today,在整句话中做什么成份?
（2）as easy as it is又做什么成分?
（3）travelling为什么要加ing?
答
译全句：
尽管在那个时候,旅行不像今天这样方便,蒸气船能运送成千上万的.
（1）其中travelling was not as easy as it is today,在整句话中做什么成份?
这是一句完整的句子：
travelling主语(因此加ing)]
was not 作系动词,
as easy as it is 作表语.