across，though和over的用法与区别

across，though和over的用法与区别
across，though和over的用法与区别

解题思路： through, across和over的区别在初学阶段 较难辨清，平时注意多加练习
解题过程：
through, across和over的区别
　　1、through：穿过（是在物体内部穿过）
　　I threw it through the window.
　　Is it quicker to drive round the town, or straight though the centre?
　　2、across: from one side to the other
　　（在平面上）越过，在/到……对/面，横过。是横穿物体表面
　　I can’t swim across the river. 我不能游到河对岸。
　　He went across the hall to the door. 他越过大厅到门口。
　　3、over: 翻越过，是指在物体正上方过去，并且不与物体接触。
　　across和over两者都表示从一侧向另一侧的运动：
　　She drove over /across the bridge.
　　但如果越过的是一个高的物体，则用over:
　　He climbed over the wall.
　　如果越过的是一个平面，则宜用across：
　　He went across the hall to the door.
　　
across和through都表示“穿过”，“通过”的意思，across表示从物体表面“穿过”、“通过”;而through则表示从内部“穿过”、“通过”。
across
　　［误］ He ran across the wood.
　　［正］ He ran through the wood.
　　［析］ across是指某一动作在一平面内进行，而through则是指该动作在一三维立体空间的运动过程。
如：The man came in through the window.
He walked across the square.
　　across的主要用法有两个。
其一，意为"对面"，如：There is a school just across the street.
其二，意为"横过"，如：He walked across the street.
　　
through
　　［误］ I had a long distance call with John throught the telephone.
　　［正］ I had a long distance call with John on the telephone.
　　［误］ It took us two hours to walk across the forest.
　　［正］ It took us two hours to walk through the forest.
　　［析］ across是表示在一平面上进行的动作，而through则是用在三维空间的动作。
如： The river was frozen, so we could walk across it.
I pushed through the crowds to the entrance.