介词on的用法
1、在...之上，有接触
There is a book on the desk.
2、在具体的某一个时间
on Sunday morning
On a cold morning,he left home.
另外学的短语: break out:爆发 break up:分手
The war broke out on July 14th.
3、关于、涉及on(学术化) about(生活化)
The meenting on English will be beld next week.
He wrote a lot of artilles on this issue.
学的短语：hold a meenting
4、处于...情况 (on duty)
This floor is on fire.
I'm on fire.
She is on leave.
5、是...成员
He is a member of the team.
on the team.
6、靠近...边缘(位置)
The village is located on the river.
Russia is located on the north of China.
Japan is located to the east of Chian.
7、一...就
On hearing the news,he died.
On eating the ice cream,he smiled.

如果想学习英语语法,可以打开这页. http://www.youTheme.cn/en/grammar/index.html

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