across,cross,through,over的用法區(qū)別：across,cross是橫過(guò)的意思,across是介詞,通常在用go,run,swim.等搭配；cross是動(dòng)詞,通?？梢灾苯臃旁诰渥又?；through是穿過(guò),跟across一樣介詞,通常在用go,run,swim.等搭配through與cross的不同在于：through是從中通過(guò)across是從事物表面穿過(guò)；over 是越過(guò),在…上方.
eg.①I(mǎi) went across the road = I cross the road.我橫過(guò)馬路(經(jīng)斑馬線)
②The river runs through our city.這條河流經(jīng)我們市.
③He passed through the hall.他穿過(guò)大廳
④I swam across the Changjiang River 20 years ago.20年前我橫渡了長(zhǎng)江.
⑤Look left and right before you go across the street.過(guò)馬路時(shí)要左右看.
⑥She put a blanket over the sleeping child.她給熟睡的孩子蓋上毯子.
⑦She climbed over the wall.她翻過(guò)墻去.
⑧a bridge over the river 橫跨河面的橋
⑨They held a large umbrella over her.他們給她撐起一把大傘.