词汇：on which

1. 释义 (Meaning):
“on which” 是一个由介词 “on” 和关系代词 “which” 组成的短语，常用于引导定语从句，表示“在……上”，“在……的情况下”或“关于……”。

2. 音标 (Pronunciation):
/ɒn wɪʧ/ 或 /ɑːn wɪʧ/（取决于英语口音）

3. 用法 (Usage):
“on which” 用于引导非限定性定语从句，通常后面跟有先行词，如人、物、地点、事件等。这个短语表明某个动作发生的地点、时间、情况或条件。常见于书面语中，尤其是在正式写作中。

4. 语法结构 (Grammatical Structure):

“on” 是介词，表示某个动作发生的表面、位置或情况。

“which” 是关系代词，指代前面的名词，通常是事物、地点或抽象概念。

5. 例句 (Example Sentences):

The book on which I based my research is very old.

我根据我的研究所用的书籍非常古老。

 

This is the house on which we spent most of our childhood.

这是我们大部分童年时光度过的房子。

 

The article on which he is working will be published next month.

他正在写的那篇文章将在下个月出版。

 

The meeting on which the decision was made was quite lengthy.

做出决定的那次会议非常长。

 

She asked for the reasons on which the decision was based.

她询问了做出这个决定的理由。

 

The city on which this documentary is focused is in the north of the country.

这个纪录片聚焦的城市位于该国北部。

 

The website on which I found the information is very reliable.

我找到那些信息的网站非常可靠。

 

The system on which the new software operates is quite advanced.

新软件运行的系统非常先进。

 

I remember the moment on which our lives changed forever.

我记得我们生活永远改变的那个时刻。

 

The event on which they relied for funding was cancelled.

他们依赖的筹款活动被取消了。

 

6. 短语搭配 (Phrase Collocations):

On which basis (基于……的依据)

On which occasion (在……的场合)

On which point (在……的观点上)

On which account (因为……的理由)

On which terms (在……的条件下)

7. 注意事项 (Notes):
“on which” 用于正式或书面语中较多。在口语中，可以通过简化结构，如“where”或“that”来替代。