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The Restrictive Attributive Clause and Non-Restrictive Attributive Clause
限制性和非限制性定语从句
限制性定语从句是先行词不可缺少的部分,去掉它主句意思往往不明确;非限制性定语从句是先行词的附加说明,去掉了也不会影响主句的意思,它与主句之间通常用逗号分开。如:
This is the car which we bought last year.
The house, which I bought last week, is very bright.
>1.mean to do“打算,企图”。
She means to stay here for two more days.
mean doing“意味着”
Missing the plane means waiting for another hour.