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4. We ought to learn more about our body and the fuel it needs to keep fit. (Reading)
[考點] ought to的用法和should差不多,只是語氣稍重一些。其否定式為ought not to(oughtn’t to)。ought to have done同should have done,意為“本應該做某事而沒有做”。
[考例1] There was a lot of fun at yesterday’s party. You ______ come, but why didn’t you? (上海1999)
A. must have B. should
C. need have D. ought to have
[點撥] 選D。句意為“昨天的晚會很有趣。你本應該來,可你為什么沒有來呢?”。must have done表示“過去一定做過某事”,是對過去發(fā)生情況的肯定推測,不合題意。