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. 1. too tiny for them to live in 2. too old to work 3. too young to look after 4. too busy to cook
5. old enough to share 6. early enough to cook 7. quickly enough to spare 8. too poor to afford
9. strong enough to carry 10. generous enough to give
Ⅱ. 1. It is sensible of her to work 2. it is sad for a girl to leave school
3. It is necessary for every child to receive 4. It is important for Xiaofang to continue her schooling
5. it is impossible for her to have 6. It is wise of him to think of
7. It is kind of our teachers to donate money
Ⅲ. 1. is led 2. are organized 3. was set 4. is called 5. is held 6. will be invited 7. was operated 8. was saved
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