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1. 句型為:It is/ was not until 被強調(diào)部分 that 其他部分
e.g. 普通句:He didn't go to bed until/ till his wife came back.
強調(diào)句:It was not until his wife came back that he went to bed.
2. 注意:此句型只用until,不用till.但如果不是強調(diào)句型,till, until可通用;因為句型中It is/ was not …… 已經(jīng)是否定句了,that后面的從句要用肯定句,切勿再用否定句了。