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(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The Restrictive Attributive Clause and Non-Restrictive Attributive Clause
限制性和非限制性定語從句
限制性定語從句是先行詞不可缺少的部分,去掉它主句意思往往不明確;非限制性定語從句是先行詞的附加說明,去掉了也不會影響主句的意思,它與主句之間通常用逗號分開。如:
This is the car which we bought last year.
The house, which I bought last week, is very bright.
>1.mean to do“打算,企圖”。
She means to stay here for two more days.
mean doing“意味著”
Missing the plane means waiting for another hour.