互动封闭仿真课堂1、智能交互 2、电子板书式视频教学 3、5分钟一次互动问答 4、封闭课堂
12.chandelier n.---a very big lamp, made of many pieces of glass to reflect the light 枝形吊灯
13.kidnap v. --- take someone as a prisoner by unlawful force and against one’s will
(usually to make other people pay money to have them released) 绑架，劫持
Three men kidnapped a millionaire’s son, and forced his father to pay them a lot of money.
14.capture v. ---catch; make (someone) a prisoner 捕获;浮虏
15.shock v.--- to cause usu. unpleasant or angry surprise to 使震惊
be shocked at: I was shocked at her death.