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He suddenly saw Sue ___the room.He pushed.his way __the crow

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He suddenly saw Sue ___the room.He pushed.his way __the crowd of people to get to her.
答案across through 第一个为什么用across
across为“横穿”,与“道路”交叉形成“十字”.而through为在立体空间中的“穿过”.如:go through the forest“穿过森林”,go across the street “穿过大街”
房间的话,可以看做地面上横穿,不是立体的;人群肯定是立体空间都充满了障碍,用through
但是我觉得 房间用through也没问题.考试不会考这么模棱两可的题吧.
through表示“贯通、直穿、透过、穿过”的意思,即是从一头(边)贯穿到另一头(边).
例The river runs through our city.这条河流经我们市.
He passed through the hall.他穿过大厅
across表示“横穿、横过、横渡、横跨”
例:I swam across the Changjiang River 20 years ago.
20年前我横渡了长江.
Look left and right before you go across the street.
过马路时要左右看.