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、短信提醒混淆短语：introduce into：把……传入；插入
It is said that curry was introduced into China from India.据说咖喱是从印度传入中国的。
4. invite sb. to do sth.：邀请某人做某事
He was quite suprised that Peter would invite him to go to the party.他很惊讶彼得竟然邀请他参加晚会。
混淆短语：be invited out：应邀
He was invited out to dinner with some friends in that restaurant.他应邀与几个朋友在那家餐厅共进晚餐。
5. in season：在旺季
The price of the hotel is higher in season.这家酒店的价格在旺季会高一点。
替换短语：at all seasons：一年四季
The weather in Kunming is warm at all seasons.昆明的天气四季都很温暖。
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