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2. started its work in China in 1980. It has done a lot to protect the environment and wildlife.
3. As many as 18,000,000 blind people can see again because of the help from , a flying hospital.
4. was set up in the UK in 1942. Its name comes from Oxford Committee for Famine Relief. It works to support poor people. Now, it has 13 member organizations and works in more than 110 countries.
Ⅲ. 根据所给汉语意思，填空完成下面的句子。
1. 政府已经做了很多事情以防止H7N9蔓延。
The government has done a lot .
2. 中国西部很多地方需要老师。
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