across
▲ across和over均可用來表示某一范圍之內(nèi)（如田野、沙漠、舞池等）的動作.或表示“處
于一座高的障礙物的另一側(cè)”.例如：
During the day,we’ll walk across the land,following the footprints of big animals such
as elephants,lions and giraffes.
白天,我們穿行于陸地,追尋大象、獅子和長頸鹿之類大型動物的腳印.
① He has traveled all over/across the Europe.
他已走遍歐洲.
② Can you jump over/across the stream?
你能跳過這條小溪嗎?
③ There are three bridges across/over the river.
河上有三座橋.
④ There is an apple tree across/over the fence.
籬笆的另一邊有一棵蘋果樹.
⑤ Another village is over/across the hill.
小山那邊有一個村莊.
辨析：across和over.
▲ across表示“從某一范圍的一邊到另一邊”.例如：
⑥ He walked across the living room into his bedroom.
他走過客廳進(jìn)入房間.
⑦ How long does it take to sail across the Pacific?
橫渡太平洋需要多久?
⑧ It took them three month s to go trekking across the desert.
他們花了三個月穿越這沙漠.
▲ over表示“從頂上越過或克服某一困難”.例如：
⑨ The boy climbed over the fence and disappeared.
男孩翻過籬笆不見了.
⑩ He looked back over his shoulder.
他從肩膀上往后看.
(11) They got over many difficulties in their English study.
他們克服了英語學(xué)習(xí)中的許多困難.
注：across作“遍及”解釋,這時與all over/throughout同義.例如：
(12) The news spread across/all over/throughout the country.
這消息傳遍整個國家.
辨析：across,over 和through.
▲ through prep.表示“從……穿過”,常指從物體的中間穿過.例如：
① The tourists traveled through the forest.
旅游者穿過森林.
② He went in through the open window.
他從開著的窗戶進(jìn)入.
③ She looked into the room through the key hole.
她從鑰匙洞往房間里邊看.
▲ through prep.表示原因,相當(dāng)于because of 或as a result of.例如：
④ It was through his carelessness that the money was lost.
是因為他的粗心錢才丟了.
⑤ It was all through you that we were late.
我們之所以遲到,完全怪你.
⑥ The accident happened through no fault of yours.
這個事故的發(fā)生并不是你的過錯.
⑦ We lost ourselves through not knowing the way.
我們因不認(rèn)識路而迷失方向.
▲ through prep.也可以用來表示借助于某種工具、方法或手段,相當(dāng)于by means of,意為
“通過”“依靠”.例如：
⑧ We learn a language through (= by) speaking it.
我們通過對話來學(xué)一門語言.
⑨ I got the news through a friend of mine.
我是通過我的一個朋友得知這一消息的.
⑩ He achieved his goal through (= by) hard work.
他通過努力奮斗實(shí)現(xiàn)了目標(biāo).
▲ through adv.表示“自始至終”“完全地”“直達(dá)”.例如：
(11) He slept the whole night through.
他睡了一整夜.
(12) You are wet through.
你全身濕透了.
(13) This train goes through to Paris.
這火車直到巴黎.