A computer can get very hot when it works on a lot of programs. It can cost a lot to cool the computer. So some scientists want to know what would happen if the heat from the computer could be used.

    Large Internet companies such as Google and Microsoft have thousands of computers. As these computers deal with information， they produce lots of heat， so they need huge cooling systems. These systems send the heat into the air.

    A company in Holland thinks paying to make the computers work and then paying again to cool them are a waste of energy. So the company developed a special device—the e-Radiator.

    Boaz Leupe， head of the company， says that e-Radiator works as a heating system and saves money. He explains that the energy is used twice—once to heat the home and once to cool the computer and that the users don't have to pay to cool their computers.

    Five homeowners in Holland are testing the heating system in their homes.

    “We pay for the computer using， so， in that way， homeowners get heating for free.” Boaz says.

    Jan Visser is one of the homeowners. “If you use the computer more， the e-Radiator producers more heat，” he says， “It cannot provide enough heat if you don't use your computer often.” But he is ready to try it. It's a great help for his family.

    The company says e-Radiators produce heat temperatures of up to 55℃. It says the system could save its users about $440 a year.

      We are all busy talking about and using the Internet ,but how many of us know about the history of the Internet?

      Many people are surprised when they find that the Internet was set up in the 1960s.At that time, computers were large and expensive. Computer networks(网络)didn' t work well .If one computer in the network broke down, then the whole network stopped. So a new network system(系统) had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way the computer network system would keep on working all the time. At first, the Internet was only used by the government, but, in the early 1970s, universities, hospitals and banks were allowed to use it too.

    However, computers were still expensive and the Internet was difficult to use. By the start of the 1990s, computers become cheaper and easier to use. Scientists had also developed software(软件) that made “surfing(浏览)” the Internet more convenient (方便).

    Today it is easy to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students.

   The Internet has now become one of the most important parts of people's life.

    Artificial intelligence (AI) (人工智能）is the ability of a computer program or a machine to think and learn. It is also a field of study that tries to make computers "smart". John McCarthy, a scientist, came up with the name "artificial intelligence" in 1955. Many things such as learning and problem solving can be done by computers, though not in the same way as we do.

    An unusual goal of AI research is to create computer programs that can learn, solve problems, and think logically(逻辑地）. At present we use the term Al for successfully understanding human speech, recognizing(识别）human faces, operating self-driving cars and competing in some game systems like Chess and AlphGo（阿尔法狗）. Some people also consider AI a danger to humans if it develops too quickly. Professor Stephen Hawking (霍金), a well-known British scientist, was not for this kind of technology.

    Math is the basic language of AI. If we raise the standard in the learning of math, our students will be more likely to become successful AI designers in the future. We not only want bright students, but also need to attract average students and give them the math skills which are needed to change them into AI designers. Besides, a good knowledge of computer science is also necessary for AI designing.

    Scientists hope to create creative and emotional AI which can possibly understand human feelings or create art. Many ways and tools have been tried to discover this fascinating field.

注意：

1.表达中必须包含所给要点，可以适当发挥，不要简单翻译。

2.词数 90 左右，开头已经写好，不计入总词数。

3.表达中请勿提及真实校名和姓名。

Students in our school are free to choose some special courses according to their interest.

……

Many people connect gratitude(感谢) with saying "thank you" to someone who helped us, making it a short act of appreciation. According to Robert Emmons, a leading researcher, gratitude is an emotion that can result in long-lasting positivity(积极性). {#blank#}1{#/blank#}

Gratitude is good for your health.

Through his research, Emmons found that grateful people reported feeling healthier and happier, both mentally and physically. {#blank#}2{#/blank#} In the workplace, employees who are shown that they are appreciated are healthier and more productive by 50 percent.
{#blank#}3{#/blank#}

Gratitude is a selfless act. We often take for granted the simple things in life. Those who recognize the goodness in life, no matter how simple, are more likely to be sensitive to the needs of others and to help whenever they can. Being considerate to others' opinions, experiences and backgrounds will make you a better person.

Gratitude makes us more self-aware.

Working in an ever-developing, fast-paced society, we are surrounded by ambitious people who are always struggling for more and better. {#blank#}4{#/blank#} It starts by paying attention to what's now going on in your life, and that's true self-awareness is the key to being successful.

Gratitude helps us build strong relationship.

Gratitude is a powerful tool for strengthening relationship, both at work and in your personal life. People who express their gratitude tend to be more willing to forgive others and therefore able to create long-lasting connections. 
{#blank#}5{#/blank#} Taking the time to thank people for their work and kindness — whether it was today, last month or many years ago-makes you happier and more self-aware.

Hello, boys and girls! Do you like to make new friends at school? Yes? Here's some of my advice（建议）.

Don't be shy（害羞的）! Try to talk to all of your classmates. Smile and say, "Hello! What's your name?" If you didn't hear the name clearly, try, "Sorry, can you repeat（重复） that for me, please?" Then give your name and say, "Nice to meet you!" It's really as easy as that! It's important to get people's names right. If you get themwrong, they might feel sad!

____ Ask about school, sport, music, and more! As you listen, think of more questions to ask. So when your classmate stops talking, you can jump in and ask another question! But remember, you have to be a good listener before you can ask good questions.

Try to share! Tell your classmates something interesting about yourself. Then your new friends can get to know you too! Soon enough, you' ll be the best of friends!

I hope you find my advice helpful! Now go make some new friends!