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(2) play a joke on 开(某人的)玩笑
10. means n. 手段;办法
(1) by means of 用……;依靠……
The water may be carried by means of a pipe.
(2) by all means 一定;务必;(表示同意)当然可以，没问题：务必，无论如何，千方百计地
Try by all / every means to persuade him to come.
(3) by no means 完全不是;一点也不;决不
This is by no means the first time you have been late.
还有： by this means 用这种方法; by any means 用一切可能的方法或手段
【考例】(MET 1991)Students sometimes support them- selves by ____ of evening job.
A. ways B. offers C. means D.helps
[考查目标] by means of 短语的意思。
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