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Mary found Wang Fei smiling a little and was not happy about it.“Tell me，Fei，how could people laugh when someone fell like that?Why didn’t they go up and ask him if he was hurt?”
Wang Fei said，“Because they knew he wasn’t hurt too much.”
“But I still don’t understand. A fall is a fall. In my culture，people would never laugh!”
This is an example. The Chinese and the westerner will think and act differently when seeing such a thing. Chinese people are used to laughing or smiling. Very often the person who is in embarrassing (困窘的) situation would also laugh or smile to get out of it. However，if someone gets hurt seriously，it will not be a laughing matter any more. People will help him or her instead.
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