in front of
在...(范围外)的前面
There is a tree in front of the classroom.
in the front of
在...(范围内)的前面
There is a blackboard in the front of the classroom.
in front表示某物体之外的前面.
in the front表示某物体之内的前部.如:
1.There are some tall trees in front of the classroom.(大树应当在教室之外的前面)
2.There is a teachers' desk in/at the front of the classroom.(讲桌应当在教室之内的前部)
我这样讲想必你易懂些.你可这样记:有“这个”时,就指这个之内.(“这个”=the)
in front 是指 在...前面 是不定位词
比如说,我在他前面
I am in front of him