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7. be affected by：受……影响
I was deeply affected by the poem wrote for me.我深深被那首写给我的诗感动了。
替换短语：be conditioned by：受……影响
I was deeply conditioned by the poem wrote for me.我深深被那首写给我的诗感动了。
8. beam with joy：笑逐颜开
Sandy beamed with joy when she found her missing bag.当珊迪找回丢失的包，她笑逐颜开。
替换短语：with one's frown faded：笑逐颜开
She looked at him with her frown faded.她一脸笑容地看着他。
9. be armed to teeth：全副武装
The army was armed to teeth.军队全副武装。
混淆短语：by arms
The government suppressed the revolt in a couple of days by arms.政府用武力在几天内镇压了叛乱。
10. bear in mind：记住
Please bear in mind that opportunities don't knock twice.请记住，机会通常只有一次。
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