互動封閉仿真課堂
1、智能交互 2、電子板書式視頻教學(xué) 3、在線互動問答 4、封閉課堂啟發(fā)式教學(xué)方式
隨堂測試、知識梳理、易錯點揭示、總結(jié)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(fù)習(xí)及導(dǎo)出錯題本升級服務(wù)
在線答疑、課后同類題練習(xí)、講義下載、短信提醒(1) call for
① 來找(某人);來取(某物) I'll call for you at your house.
②要求;需要Success in school calls for much hard work.
(2) call on
?、?call on / upon sb. 拜訪;去會(某人) I hope to call on you at your office at 3 o’clock today.
?、?call on / upon sb. to do sth. 請/叫某人做某事He called upon me to speak immediately.