You can't buy them in the shop before eight o'clock.八點之前你在商店里買不到那些東西.
How many students stand in front of the class? 有多少學(xué)生站在同學(xué)們面前.
[辨析] before與 in front of都有“在.之前”的意思,當(dāng)表示“在某種位置前”時,兩者可以通用.例如：
She sits before/in front of me in the classroom.在教室里他坐在我的前面.
in the front of是只在前面的部分
They are standing in front of/before the blackboard.他們正站在黑板的前面.
當(dāng)表示“在某建筑物前面”時,宜用in front of.例如：
The car stopped in front the cinema. 汽車停在電影院的前面.
當(dāng)表示“在某段時間”,“某一事件”之前時,用before,不用in front of.例如：
Before liberation he lived a poor life.解放前他過著貧窮的生活.
Please come to see me before Sunday.請在星期六以前來看我.