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listen and find them.
(Play the recording of 2b. Students work.)
T:Who find them?
(Many students may say they do. Choose two of them to answer.)
S1: Dave is …Lin Hai is …
③Pairwork. Talk about Dave’s family.
T: You come to Dave’s home. You see a picture on the wall. There are many people in the picture. You want to know who they are. Use “ Is this…” to find them, please. When you finish, change roles to do it. Now begin.
(Students work. Teacher walks round the classroom to see how they are doing and helps the students who need.)
T: Let’s check your work, please.
SS:OK.
(Ask one pair to do it.)
S1:Is this Jim?
S2:No, he isn’t.
S1:Is this Jim?
S2:Yes, he is.
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