阅读以上信息, 用恰当的词完成下面的表格, 每空一词。

      Have you ever asked your relatives or friends if there is Wi-Fi in their houses? Have you ever searched for Wi-Fi when you are at restaurants or hotels? The answers will probably be "Yes". Most of us want Wi-Fi everywhere as if we can't live without it. But we can only use free Wi-Fi in some public places. We still have to spend some money accessing(连接)the Internet at most time. Here comes a piece of good news.

      A rich, powerful organization in the USA called the Media Development Investment Fund (MDIF) has decided to change the age of online computing (计算) completely by giving free Wi-Fi to every person on Earth. They will send up hundreds of satellites into low Earth orbit(轨道)in 2015.

     This is because they have made a survey and found that only 60% of the world's population have been able to get information on the Internet. And this is also because many countries are unable to offer people the necessary infrastructure(基础设施)to access the web.

We can expect to use free Wi-Fi everywhere in the near future.

    Not only adults(成年人) but also teenagers have problems in their life. Here is a survey showing the main problems of teenagers.

    They feel stressed because they have too much homework to do both at school and at home. They have a lot of exams to take. And parents usually send them to different classes at weekends. They don't have their own time to do what they are interested in.

    Now more and more teenagers are getting short-sighted. They often read in bed or keep reading for a long time without having a rest. Some are crazy about playing computer games. Some spend too much time   (watch) TV. Another serious problem among teenagers is that many of them are becoming fat. They eat too much junk food and take little exercise.

    I think teenagers should think of ways to deal with (处理) the problems. They should make a plan for study and hobbies and find time to relax as much as possible.

    Careful and careless are as different as fire and water. But it is strange that quite a few scientists have both these qualities (品质 ). They are both careful and careless. {#blank#}1{#/blank#}.

    Once Newton invited a friend to dinner at home. When they were ready to eat, Newton left to get a bottle of wine (酒). {#blank#}2{#/blank#}, Newton still didn't come back. At last his friend found Newton in his lab. When Newton was going to get the bottle of wine, he suddenly had a new idea for his experiment. So he quite forgot his friend and the dinner. Another time, Newton was leading a horse up a mountain, and he held the rein(缰绳) in his hand. While he was walking along, he kept thinking about problems. {#blank#}3{#/blank#}, he found that the horse was gone.

    Einstein was another example. {#blank#}4{#/blank#}. While waiting, he became lost in thought. It started to rain. The rain kept on for some time. When he took out a piece of paper to write something down, the paper was wet and then he knew that it was raining. {#blank#}5{#/blank#}, he again forgot he was standing in the rain.

A. But after he put the paper into his pocket

B. But after his friend had waited for a long time

C. Once he was waiting for a friend at a bridge

D. Newton, the famous English scientist, was such a person

E. When he got to the top of the mountain

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