1 in front 是副詞短語,意為“在前面”,用作狀語,同go, run, walk等連用。
He walked in front . 他走在前面。
Who ran in front in the match? 比賽中誰跑在前面?
2 in front of +名詞/代詞 是介詞短語,表示“在……前面”,指在某一范圍外的前面,兩者可分開,反義詞是behind 。
There is a big tree in front of the classroom. 教室前面有一棵大樹。
She ran in front of me. 她跑在我的前面。
3 in/at the front of +名詞/代詞 是介詞短語,表示“在……的前部/面”,指在某一范圍內的前部,兩者是包容的,反義詞是at the back of 。
There is a blackboard in the front of the classroom. 教室的前部有一塊黑板。(教室內的前部 )
The driver sat in the front of the bus. 司機坐在公共汽車的前部。