Imagine having a bedroom that interacts with you. If you’re sad, it will arrange for some of your friends to come over to cheer you up. If you’re happy, it might respond by playing your favorite game with you.

    Does it sound like something out of a science-fiction movie? Well, it’s really something out of the Georgia Institute of Technology. Irfan Essa works at the computer lab there. He has developed a computer system that can look at you and recognize your mood. He calls it the “expression recognition system.” Essa says, “We are trying to get computers to act like a human brain. But the human brain is not like one computer, it is like many working together.”

    In Essa’s system, many computers work together. First, a camera in the bedroom takes a picture of your face. The camera feeds the image to a computer. In the computer’s memory, there are pictures showing how the muscles of your face move when you are in different moods. For example, cheek muscles move in one way when you are happy and smiling and in another way when you are nervous and tense. The computer compares your picture to the face-muscle images stored in its memory. It tries to find the best match. That’s how it figures out your mood! Then the computer sends messages to other computers in the system. If you look happy, a computer may put on lively music. If you look tired and discouraged, a different computer may turn on the TV for you.

    How could the “expression recognition system” help us in important ways? Essa thinks that the system can help us create computers that are better teachers. Many people learn new skills through computer programs. “When I teach, I look at people’s faces,” Essa explains. “If my students look confused, I know they didn’t understand. With this technology, a computer can also know if a student is learning.”

    Today, this new technology can be found only in labs, but Essa predicts we’ll see it out of the lab in a few years. So get ready. One day, you might walk into a room that will soon become your best friend.

1. Can the new computer system look at you and recognize your mood？

2. What happens first in the bedroom in Essa’s system?

3. Will the computer put on lively music or turn on the TV if you look happy?

4. How does the “expression recognition system” make computers better teachers?

5. What will future rooms be like?

We are all asked to make a speech at some point in life，but most of us don’t do a very good job. This article gives us some suggestions on how to make an excellent speech.

Usually people are often afraid of making a speech in public. You get nervous, you forget what you want to say, you talk too long, and you get your audience bored. Later you think,“Thank Goodness！It's over. I'm just not good at public speaking. I hope I will never have to do that again.”

Cheer up！It doesn’t have to be that hard. Here are some simple steps to make preparations. Firstly, ask yourself the purpose of your speech. Why are you speaking？Secondly, collect as many facts as you can on your subject. Thirdly, spend enough time organizing your material so that your speech is clear and easy to follow. Use as many examples as possible, and use pictures, charts and graphs(图表) if they help make your points clearer. Lastly, never forget your audience. Treat your audience with respect. They will be thankful.

Just remember！Be prepared. Know your subject and your audience. Be brief. Say what you have to say and then stop. And ee yourself. Let your personality (个性) come through so that you make person to person contact(联系) with your audience.

If you follow these simple steps, you will see that you don’t have to be afraid of speaking in public. In fact, you may find the experience so enjoyable that you volunteer to make more speeches！Have a try and ice what happens.

81.The second paragraph mainly tell us_________________________________________

________________________________________________________________________

82. What should you do when you are preparing a speech？(至少列出三个建议)

________________________________________________________________________

________________________________________________________________________

83.The underlined phrase “Be brief”in paragraph 4 means_______________________

________________________________________________________________________

84. Translate the underlined sentence in the last paragraph into Chinese.

________________________________________________________________________

85. 请给短文拟定一个适当的英文标题。

________________________________________________________________________