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Ⅰ. 根据句意及首字母提示，补全单词。
1. Where is the Sahara, the famous d ?
2. China is about 9,600,000 s kilometers in size.
3. It’s very important for everyone to p the environment.
4. It snowed heavily last night. Today there is t snow on the ground.
5. The climbers s in reaching the top of the mountain in the end.
Ⅱ. 根据句意及汉语提示，填入恰当的单词。
1. There is a map of China on the (墙).
2. What is the (人口数量) of Beijing? Do you know?
3. Mr Black likes the (古代的) history of China.
4. How (深的) do you think the river is?
5. They lost the game because they didn’t think about the weather (状况) there.
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