互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本,课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒Did you hear what happened to David last night? 你听说大卫昨天晚上发生什么事了吗?
What will happen to the children if Peter and Alice break up? 如果彼得和爱丽丝离婚孩子们将怎么办?
I happened to see Peter on the way to the bookstore yesterday. 昨天我去书店的路上碰巧遇见了彼得。
It so happened that I saw Peter on the way to the bookstore yesterday. 昨天我去书店的路上碰巧遇见了彼得。
I happened to be out when he called. 他来访时,恰巧我出去了。(= It happened that I was out when he called.)
I happened on just the thing I had been looking for. 我偶然发现了我所要找的东西。
3. right away毫不迟疑,立刻