听力原文：W: Hi. Tom. How things get along with the preparation for the annual meeting documents? M: It's coming along. But I've been staring at the computer screen for hours and my eyes hurt. W: Yeah Typing the words on the screen really make your eyes dry and tired. You should take a break. M: I can't. The deadline is approaching. W: You know, I read about computers and eye problems recently. The article says that they are usually caused by not blinking your eyes enough. M: Blinking? I thought I just needed new glasses. W: when you blink, the movement of closing and opening your eyes, even though it happens really fast relaxes your eyes. M: That makes sense. W: People using computer tends to stare at the screen and blink less often than they normally would. M: That is what I am doing. And I am suffering from the dry eyes. W: That is one of the typical symptoms. M: But what does it have to do with the computer? W: The article I read about the office workers found that the workers averagely blink 22 times a minute when relaxed But just 7 times a minute while looking at the text on a computer screen. M: Wow That's quite a difference. W: Yeah. So you need to blink your eyes and take a break from the computer M: I wonder if using some kind of eye-drops will make me feel better. W: That might help.But the best prescription is to take a break and rest your eyes M: Ok. Let's go get some coffee. I can finish this later tonight. (23)