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There were more slaves than citizens in ancient Athens.
They are all slaves to fashion.
He is a slave t o drink.
She slaved for him all her life.
I have been slaving away all weekend in the garden.
11. replace v. 1) to put sth. back where it was; 2) to take the place of sb. \ sth; 3) to change one thing for another that is newer or better.
The brakes have to be replaced.
Electric lights have replaced candles.
You will have to replace those old computers.
12. prize 1) n. sth. of value given to someone who is successful in a game, race, or given for some action that is admired;
一站式課程咨詢服務平臺
