题目内容
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)
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听力原文： Early one morning, more than a hundred years ago, an American inventor called Elias Howe finally fell asleep. He had been working all night on the design of a sewing machine but he had run into a very difficult problem; (29)it seemed impossible to get the thread to run smoothly around the needle. Though he was tired, Howe so, Howe ran into the salve problem as before. (29)The thread kept getting caught, around the needle. The king flew into the cage and ordered his soldiers to kill Howe. They came up towards him with their spears raised, hut suddenly the inventor noticed something. There was a hole in the tip of each spear. The inventor awoke from the dream, realizing that (30)he bad just found the answer to the problem. Instead of trying to get the thread to run around the needle, he should make it run through a small hole in the center of the needle. This was the simple idea that finally made Howe design and build the first really practiced sewing machine．(31)Elias Howe was not the only one who found the answer to his problem in this way. Thomas Edison, the inventor of the electric light, said his best ideas came into him in dreams. So did the great physicist Albert Einstein. Charlotte Bronte also drew in her dreams in writing Jane Eyre.
(30)
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