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crash: fall or strike sth. Suddenly and noisily
land: reach the ground after a jump or fall
deserted: with no one present
challenge: difficult, demanding task
realize: be fully aware (明白的) of or accept sth. as a fact; understand
suppose: accept as true or probable; believe; imagine
parachute: device for making people or objects fall slowly and safely when dropped from a plane
pal: friend