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17. I'm sorry to keep you ________ so long, (wait)
18. They carried the children to_________ . (safe)
19. The pipes for _______ water under the street burst. (carry)
20. _________ as it may seem, it was a quiet night. (amaze)
21. right away_________
22 at an end _________
23. dig out _________
24. give out _________
25. thousands of _________
26. 破旧的窗户 _________
27. 使……成废墟 _________
28. 最重要的方式方法 _________
29. 在黑暗的天空 _________
30. 疯狂的事情 _________
参考答案
1. down, for
2. down
3. with, away
4. at
5. in
6. from
7. to
8. from
9. on
10. In
11. feet