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t an altitude of more than 5000 meters, she seemed to be excited about it. 當我告訴她我們將在海拔 5000米處開始旅程 , 她好像對此很興奮。 at an altitude of = at a height of 在海拔 …… 米處 . The plane is flying at a height / altitude of 10,000 feet. 注意 at 在此處表 “ 在 …… 處 /時 , 以 …… ‖后接年齡 , 速度 , 長寬深高 , 價格 , 費用等 at the age of at a high / low price at a depth/width of at the cost of at a distance of 8. When I told her the air would be hard to breath and it would be very cold… 當我告訴她將呼吸困難 , 天氣嚴寒 …… 主語 + be + adj.+ to do sth. 是一常用句式既不定式用主動形式表達被動含義 . The problem is really hard to work out. My boss is easy to deal with. 不定式和主語之間是邏輯動賓關(guān)系,使用及物動詞的主動形式,因此不及物動詞要加相應的介詞。 這一結(jié)構(gòu)中的形容詞往往是表示心理活動的,接不定式時 , 不定式的邏輯主語是句子的主語 , 主動用 to do, 被動用 to be done。也可以接從句。 注意 這類形容詞有 surprised, moved, disappointed, pleased, happy, sad, delighted, sorry, interested, glad, worried, etc. 8. Finally, I had to give in. 最后 , 我只好讓步。 give in (to sb./sth.) 屈服于 , 讓步 , 遞交 give up 放棄 , 認輸 give out 筋疲力盡;分配 give away 捐贈 , 泄露 . He had to give in to my views. It’s time you gave in your papers. 1) After the long trip, both the men and the horses ________. 2) Because of his small salary, he had to _______ his dream trip to Europe. 3) Seeing that he could not persuade me, he had to ________ my view. gave out gave up gave in to 練一練 4) He _________ most of his fortune to the poor. 5) Please keep the secret, don’t ____ it _____. gave away gave away 8. It bees rapids as it passes through deep valleys, traveling across western Yunnan Province. 穿過深谷流經(jīng)云南省西部時它變成急流 . across through prep. 穿過 across 常表示從一定范圍的一邊到另一邊或事物交叉位置 , ―橫穿 , 橫跨” 表面 , 含義與 on 有關(guān) through 表達兩邊穿過或穿過空間內(nèi)部 , 含義與 in 有關(guān) over表示 “越過” 是指越過較高的物體從一側(cè)到另一側(cè) 辨析 : . She swam across the river. The river flows through the city from west to east. Walk across the square and go through the gate, then you’ll e to the cafe. The thief climbed over the wall and ran away. The new railway winds its way to Hong Kong, ___ mountains ___ tunnels and ___ rivers. 。 over。 through B. over。 across。 through C. over。 through。 across D. through。 over。 across 實例