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Almost every day，we discuss the topic of health，especially for kids. But what is health?“Health” means eating well，getting enough exercise，and having a healthy weight. Let's read the following rules. They can help you stay healthy.
(1)Eat a variety of food，especially fruit and vegetables. We all know that eating fruit and vegetables can help us stay healthy，but many of us only eat our favorite food. Remember that we can only get the nutrition(营养)we need by eating different kinds of food，especially fruit and vegetables.
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