-Yes, ________.

-That's all right.________.

        I went to a group activity, “Sensitivity Sunday” which was to make us more 1 the problem faced by disabled people. We were asked to “2 a disability” for several hours one Sunday. Some member 3chose the wheel chair. Other wore sound-blocking earplugs (耳塞) or blindfolds (眼罩).

        Just sitting in the wheelchair was a 4 experience, I had never considered before how 5 it would be to use one. As soon as I sat down my6 made the chair begin to roll. Its wheel were not7 . Then I wondered where to put my 8 , It took me quite a while to get the metal footrest into 9 , I took my first uneasy look at what was to be my only means of 10 for several hours. For disabled people, “adopting a wheelchair” is not a temporary(临时的) 11 .

        I tried to find a 12 position and thought it might be restful, 13 kind of nice to be 14 around for a while. Looking around, I 15 would have to handle the thing myself! My hands started to ache as I 16 the heavy wheels, I came to know that controlling the 17of the wheelchair as not going to be 18task,

        My wheelchair experiment was soon 19 . It made a deep impression on me. A few hours of “disability” gave me only a taste of the 20 , both physical and mental, that disabled people must overcome.

I just hope that our brains won't crash(死机). Are you wo rking on your typing skills to make you a more efficient worker? That may be all for nothing as Intel believes that we'll be able to control our computers with our brains by 2020.

Intel and its resear ch partners are study ing how brain acts when it thinks. For example, scientists have found that people's brains react in a similar manner when asked to think of a bear.

       Through sensors(感应器)that can find this sort of brain activity, Intel thinks that it will be able to read and translate this into an input system thanks to a c hip in the brain.

“We're trying to prove you can do interesting things with brain wav es. ”Intel research scientist Dean Pomerleau told Computerworld. “Eventually people may be willing to be, more devoted to brain implants(植入物). Imagine being able to surf the Web with the Power of your thoughts. ”

Even if thin king about a bear isn't enough to show that you want to copy and paste something. Intel still thinks that there's a future in using your brain instead of the keyboard.

“If we can get to the point where you can accurately find specific words, you could mentally type, ”he added. “You could compose characters or words by thinking about letters flashing on the screen or typing whole words rather than their individual characters. ”

While this may all sound impractical for present time, Intel thinks that it's possible and something we'll all want.

“I think human beings are unusually adaptive(适应的), ”said Andrew Chien, vice pre sident of research and director of future technologies research at Intel Labs. “If you told people 20 years ago that they would be carrying computers all the time, they would have said, ‘I don't want that. I don't need that. 'Now you can't get them to stop carrying device s. There are a lot of things that have to be done first but I think implanting chips into human brains is well within the scope of possibility. ”

Make good use of your favorite mouse and keyboard set-up before they're old-fashioned.

       Each new school year brings fresh reminders of what educators call the summer learning gap. Some call it the summer learning setback. Simply speaking, it means the longer kids are out of school, the more they forget. The only thing they might gain is weight.

       Most American schools follow a traditional nine-month calendar. Students get winter and spring breaks and about ten weeks of summer vacation. Some schools follow a year-round calendar. They hold classes for about e ight weeks at a time, with a few weeks off in between. The National Association for Year-Round Education says there were fewer than three thousand such schools at last count. They were spread among forty-six of the fifty states.

       But many experts point out that the number of class days in a year-round school is generally the same as in a traditional school. Lead researcher Paul von Hippel said, “Year-round schools don't really solve the problem of the summer learning setback. They simply spread it out across the year.”

Across the country, research shows that students from poor families fall farther behind over the summer than other students. Experts say this can be prevented. They note that many schools and local governments offer programs that can help.

       But calling them “summer school” could be a problem. The director of the summer learning center at Johns Hopkins, Ron Fairchild, said research with groups of different parents in Chicago and Baltimore found that almost all strongly disliked the term “summer school”. In American culture, the idea of summer vacation is connected to beliefs about freedom and the joys of childhood. The parents welcomed other terms like “summer camp”, “enrichment”, “extra time” and “hands-on learning”.

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                                                                                                                                                                              Yours sincerely,

                                                                                                                                                                                ​Li Hua.