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1.Where there is a river, there is a city. 有河流的地方就有城市。where 是连接副词，引导地点状语从句。从句中用了there be 句型，where 含有条件意味。E.g. Where there are flowers there are bees. 哪里有鲜花，哪里就有蜜蜂。This factory will be built where I was born. 这座工厂将建在我出生的地方。I found the book where I had left it. 我在我原先放书的地方找到了那本书。地点状语从句有时可以改为定语从句，只要在其前面加上in / at the place短语即可。上面的两个从句可以改为：This factory will be built at the place where I was born. I found my book at the place where I had left it.
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