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、短信提醒引导原因状语从句的连词：
because: Because it rained he took a taxi. 由于下雨他叫了一辆出租车。
as: As you're sorry, I'll forgive you. 既然你悔悟了，我就原谅你。Since: Since you will go there, I will go too.7.让步状语从句的连词：although / though:
Though / Although it is not large, the room was light . 房间虽然不大，采光却很好。even if: They'll stand by you even if you don't succeed. 即使你不成功，他们也会支持你。
引导地点状语从句的连词：(难点)
where: I'll drive you where you're going. 你到哪儿我都可以开车送你去。wherever: We'll go wherever you say. 你说哪里我们就到哪里。
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