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How many hours a day do you watch television?你每天看几个小时电视？
In many modern western countries, the average is 4 hours per day.现代许多西方国家，人们每天平均看四小时。
Many people think it is too much, do you agree?许多人认为这太多了，你同意吗？
What are the benefits of watching TV?看电视有什么好处？
Its impact since it became popular is tremendous.自从电视流行以来，它的影响是巨大的。
It is only since the second half of the 20th century that it became available to most people in the west.在西方，到了20世纪中叶，电视才普及到大多数人。
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