互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學 3、在線互動問答 4、封閉課堂啟發(fā)式教學方式
隨堂測試、知識梳理、易錯點揭示、總結啟迪智能錯題本
聽課中的錯題能自動加入錯題本，課后可方便復習及導出錯題本升級服務
在線答疑、課后同類題練習、講義下載、短信提醒英語第一輪復習run out, run out of用法解析，供大家參考。
run out, run out of
二者均表示“用完、耗盡”，但run out不及物，同give out, run short;而run out of及物，相當于use up, run? short of。對比：Money is running out.錢快用光了。We’re running out of money.我們的錢快用光了。
All the money has given out./All the money has been used up.所有的錢已花光。
The oil is running short.油快用完了。
He is running short of oil.他快把油用完了。
[應用]一句多譯：兩周過去了，他們的食品用完了。
Key:Two weeks passed, and their food ran out.
Two weeks passed, and they ran out of the food.
Two weeks passed, and their food gave out.
Two weeks passed, and their food had been used up.
Two weeks passed, and their food ran short.
Two weeks passed, and they ran short of the food.
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