The first living creatures to travel in space were the dogs of the Soviet Unions space program.Beginning in 1951 dogs flew aboard sub－orbital flights to the height of 63 miles and higher.They helped to test the equipment that would later be used by humans.The first pair of dogs to fly，on July 22，1951，were named Tsygan and Dezik.

     Space dogs would make history on November 3，1957.On this date，just one month after the historic launch of the world's first artificial satellite，Sputnik，the Soviet Union shocked the world again by launching Sputnik 2.This satellite contained the first living creature to travel in space，a dog named Laika.Laika was to have orbited for a week or more until her food and oxygen ran out.In fact，Laika lasted only hours in orbit before over heating in her capsule(太空舱) took her life.

     That next step，occurred in August 1960，when the dogs Belka and Strelka made 18 orbits of earth and returned alive.Like Laika before them，they became distinguished ， featured in newspapers and magazines around the world.

     Six more orbital dog flights over the next eight months further tested the equipment necessary for humans to follow in the dogs' footsteps.That historic event happened on April 12，1961，when Yuri Gagarin became the first human to travel in space.

     The role of the space dogs had proven important in advancing the exploration of space.But，they would make one final flight.In 1966，traveling aboard the Cosmos 110 satellite，the dogs Ugolek and Veterok spent 22 days in orbit.Once again dogs led the way.Humans would not achieve a space flight that long for eight more years，in Skylab 2.

    Did you know that the position(位置) you choose to sleep in says something about what kind of person you are?

    A study of 1,000 British people has been done by Chris Idzikowski, a British professor and director of the Sleep Assessment and Advisory Service in the UK. It looked at the six most common sleeping positions and which personalities tend to match them. Have a look:

    ⒈Fetus (胎儿) position – This is the most common sleeping position. About 41 percent of the participants said they sleep in this position. These sleepers may appear to be strong but they are usually sensitive (敏感的) and shy. The more they curl (蜷缩) up, the more worried they are.

    ⒉Log position (树干睡姿) – This is the second most common position. People who sleep like a log are usually stubborn.

    ⒊Yearner position (向往型睡姿) – This position says that you are open-minded and eager (急切的) to face challenges.

    ⒋Soldier position – These sleepers lie on their backs with their arms down and close to the body. They are usually reserved and quiet.

    ⒌Freefall position – People who sleep in this position are outgoing (外向的) but feel a lack of control in their lives. This is the least comfortable position.

    ⒍Starfish position – People who sleep like this are good listeners, helpful, and uncomfortable being the center of attention.

    Popular music in America is what every student likes. Students carry small radios with earphones and listen to music before class, after class, and at lunch. Students with cars buy large speakers and play the music loudly as they drive on the street.

    Adult drivers listen to music on the car radio as they drive to work. They also listen to the news about sports, the weather, and the life of American people. Most of the radio programs are music.

    Pop or popular music singers make much money. They make a CD or tape which radio stations use in many places. Once the popular singer is heard all over the country, young people buy his or her tapes. Some of the money from these tapes goes to the singer. Wherever the singer goes, all the young people want to meet him or her. Now the singer has become a national star.

    There are other kinds of music that are important to Americans. One is called folk music. It tells stories about the common life of Americans. Another is called western or country music. This is started by cowboys who would sing at night to the cows they were watching.

    Attention from strangers is nothing new to me. Questions about my height is the center of almost every public interaction. My friends say my height is just a physical quality and not a personality aspect. However, when I reflect on my life, I realize that my height has shaped my character in many ways and has helped to make me who I am.

    I learned how to be kind. When I was younger, some parents in my neighborhood regarded me kind of dangerous because I was so much larger than other children of my age. I had to be extra welcoming and gentle simply to play with other children. Of course, now my coaches wish I weren't quite so kind on the basketball court.

    I learned the quality of not being too proud about myself. At 7 feet tall, everyone expects me to be an amazing basketball player. They come expecting to see Dirk Nowitzki, and instead they might see a performance more like Will Ferrell (successfully starred a professional basketball player). I have learned to be modest and to work even harder than my fellows to meet their (and my) expectations.

    I developed a sense of lightheartedness. When people playfully make fun of my height, I laugh at myself too. On my first day of high school, a girl dropped her books in a busy hallway. I got down to her level and gathered some of her notebooks. As we both stood up, her eyes widened as I kept rising over her. Astonished, she dropped her books again. Embarrassed, we both laughed and picked up the books a second time.

    All of these lessons have defined me. Looking back, I realize that through years of such experiences, I have become a confident, expressive person. Being a 7-footer is both a blessing and a curse (诅咒), but in the end, accepting who you are is the first step to happiness.

    Chinese high school students who want to enter the University of Cambridge may find that their scores on the national college entrance examination, or gaokao, will help their applications in the future.

    The University of Cambridge said in March that it has been using scores on gaokao as part of its admission criteria (标准) for Chinese students for several years, according to its official Weibo account. In addition to top scores on gaokao, Chinese applicants also need to meet English language requirements, participate in an interview and take a subject-specific wrillcn admission assessment (评估).

    The gaokao has been crillcized by some as a one shot exam that focuses on rote learning (死记硬背) rather than creativity. However, more and more people believe that there's no perfect predictor (侦测指标) of academic performance, and gaokao has the advantage of being what educational experts call a criterion-referenced (标准参照) exam—tests when her students are able to master a given body of knowledge , as well as their ability to work hard and consistently. Recent years have seen more and more foreign universities begin to accept gaokao scores as part of the application process.

    Despite the gaokao's growing acceptance among US universities, "There is a long way to go before the US education circle fully recognizes the gaokao, as there are still many US universities that don't accept it as part of their application process," Chu Zhaohui, a researcher from the National Institute of Education Sciences, told the Global Times.

    Microsoft PowerPoint is the world's most common presentation tool. It emerged from software company Forethought Inc in the 1980s. Bob Gaskins was the man behind it.

    "I knew in the early 80s that there were as many as a billion, a thousand million presentation slides being made per year just in America," Gaskins says, but they were all made by hand and almost nobody was using computers to do them.

    "It was clear to me that here was a huge application worth billions and billions of dollars a year that could be done on computers as soon as there was a revolution in the kinds of computers that we had."

    Gaskins was onto something, but it was a hard sell at the time. The software wouldn't run on any existing personal computers. Anyone wanting to use it had to buy a new machine. Even so, people bought personal computers for the first time in order to be able to use PowerPoint, says Wired magazine journalist Russell Davies.

    Davies explains that before PowerPoint, people used slides to convey information to groups — but anyone creating a presentation had to send away to get their materials made. It took a long time to do, was difficult to make changes and because it was so expensive, only the most senior people in an organisation got to do it.

    "PowerPoint," Davies says, "made it possible for everyone in an organisation to stand up and say their piece."

    PowerPoint has helped turn us all into presenters — but it' s also been accused of over-simplifying ideas and distracting (干扰)us from clear thinking.

    Sarah Kaplan is a management professor at the University of Toronto's Rotman School of Management. She has noticed that, rather than people asking for new analysis or insights in meetings, they were asking for more PowerPoint slides.

    Kaplan says that some CEOS, such as Amazon's Jeff Bezos, have banned its use. "He felt, and I think many people feel, that PowerPoint became such an object of the process that they lost the ideas inside of it and that is the risk."