介词的用法
介词的用法比较丰富，应该在平时的运用中加以揣摩归纳，要注意一些常用介词的用法，如：with, for 等，还要注意一些介词的差异，如
1.表时间的常用介词
1）in /on /at 的区别，如：
I arrived in Hefei _______ a very cold night
I usually get up ________ 6:00
There is a lot of rain _______ spring
They usually go out shopping ______ Sunday .
2）since /for 的区别
He has had this house _______ 1970
He has lived in Hefei ________ 10 years
3）in / after 表示“------之后“的区别
My father has gone to Beijing ,he will come back _______ a week .
_______ a week , he came back from Beijing .
4.“by+时间点”表示“到---为止”，后接不同的时间用不同的时态。
2. 表示地点的方位介词
1）in /on /to
Japan lies ______ the east of China
Korea lies _______ the east of China
Taiwan lies _______the east of China
2） over/on /above
There is a bridge ________ the river
Raise your arms _________ your head
There is a book _______ the desk
3） in front of /in the front of
There is a tall building _______ our house .
4） at /in /on
When did you arrive _______ Shanghai ?
He will arrive ______ the airport at six o’clock .