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T: In the last period, I told you to join some pairs of sentences, using the past participle. Now, who'll give us the answers?
(One student, one sentence.)
SA: 1. Shocked at what Jack had said, Mary didn't know what to say at first.
SB: 2. The broken mirror was lying on the ground.
SC: 3. I went into the dark room, followed by my best friend.
SD: 4. The park destroyed by the storm last Sunday is the most beautiful place in the city.
SE: 5. The dog tied to a pole by the door barked at us.
SF: 6. They were sad to see a sea of flowers covered by the heavy snow.
SG: 7. Well known for his knowledge, the scientist is able to help the workers to get out of their difficulty.
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