上课铃响了,张老师大步流星地走进教室,径直走到多媒体教学一体机前,打开了多媒体。这可是本学期张老师第一次用多媒体上课,机会难得。电子白板打开后,张老师用触屏笔在屏幕上打开了课件。我们颇为期待这节课。随着触屏笔在屏幕上轻点,一张张精美的图片呈现在我们眼前。我们齐刷刷地盯着大屏幕,眼睛一眨也不 The bell rang, teacher Zhang strode into the classroom strode, went straight to the multimedia teaching machine, opened the multimedia. This is the first time this semester Zhang multimedia classes, a rare opportunity. After the whiteboard was opened, Teacher Zhang opened the courseware on the screen with a touch-screen pen. We are looking forward to this lesson. With the touch screen pen on the screen, a beautiful picture presented in front of us. We stared at the big screen with our eyes clean