★考点1 across的用法
across意为“过；穿过”,用作介词或副词。go across“穿过”；across from“在对面”。
The supermarket is across from our school. 超市就在我们学校对面。
|词汇|含义及用法|图解|
|across|“过；穿过”,指从表面走过或从一边到另一边| walk across the road|
|through|“穿过；从……中通过”,着重指从物体内部通过| go through the gate|
【例1】—Excuse me, waiter. Is there a post office near here?
—Yes, there is one ______ our restaurant. Cross the street and you will find it.
A.in front of
B.across from
C.behind
D.next to

★考点2 in front of
in front of表示“在……前面”,后面经常接表示地点的名词或者代词,反义词是behind“在……后面”。
There is a car in front of the house. 在房子前面有一辆小汽车。

【例2】There are some tall trees my house.