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) used to do sth. 過去常?!?現(xiàn)在已不如此)
We used to grow beautiful roses.
注意:否定句和疑問句有兩種
You usedn’t to make that mistake.
She didn't use(d) to do it, did she?
You used to smoke a pipe, didn't you? / use(d) n't you?
(2) be / get / become used to n. / doing 習(xí)慣于
I have always been used to hard work.
He got used to living in the country.
(3) be used to do 被用來做……