Question

about which和which knowabout两道英语定语从句？

I'd like to tell you about the table manners____you should know when you visit Korea.这里按照know about sth 不及物动词来思考可以用about which吗？如果按照know是及物动词来考虑的话，那为什么下面这道题是选about which Antarctic____ we know very little is covered with thick ice all the year round.

Answer 1

第一题直接用 which/that，或者直接省略不用关系代词。此处后面定语从句中的 know 视为及物动词，后面直接加上宾语即可。

第二题则要用 about which，因为句中 know 后面有个 very little，所以要改用 know very little about...，而且这个 about 又无法省略。

know... 和 know... about... 还是有区别的，再如 tell... 和 tell... about... 一样。

追问

那know…和know…about…区别是什么？怎么知道什么时候是know什么时候用know about

追答

关键是句意。
know... 是“知道什么”，如 know Chinese history
know... about...则是“对什么知道多少”，如 know a little about Chinese history, know little about Chinese history, know much about Chinese history, know a lot about Chinese history, know more about Chinese history 等等

追问

懂了，谢谢