Once a group of 50 people was attending a seminar. Halfway{#blank#}1{#/blank#} his talk, the speaker stopped and decided{#blank#}2{#/blank#}(create) a group activity. He went around the hall and gave each person a balloon. Each one was asked to write his or her name on the balloon{#blank#}3{#/blank#}(use) a marker pen. Then all the balloons{#blank#}4{#/blank#}(collect) and put in another room.

    The speaker then led the group to the room full of balloons and asked them to find the balloon that had their name{#blank#}5{#/blank#}(write) on within five minutes.  Everyone was{#blank#}6{#/blank#}(hurry) searching for their name, bumping into each other, pushing each other around. It was chaos. At the end of the five minutes no one could find their own balloon.

    Now each person was asked to randomly collect{#blank#}7{#/blank#}balloon and give it to the person whose name was on it. Within two minutes everyone had their own balloon. When everyone quieted down, the speaker began to talk, saying that this is exactly{#blank#}8{#/blank#}was happening in our lives.

    We may like to think of{#blank#}9{#/blank#}(us) more important than others, but our happiness sometimes lies in the happiness of other people. Give them their happiness {#blank#}10{#/blank#}you will get your own happiness.

    Long ago, there lived in Greece a learned man. He was so well-known{#blank#}1{#/blank#}his knowledge of almost everything that lots of people from all over the country came to learn from him. The great man{#blank#}2{#/blank#}(teach) his students whole-heartedly and answered their questions with great{#blank#}3{#/blank#}(patient).

    One day, a student asked him, “My dear teacher, didn't you say you yourself have many more questions about things than we do?{#blank#}4{#/blank#}I think we students have far more than you.”

    With a smile on his face, the teacher drew two circles, one as large as a big cake, the other smaller. Then he said, “Of course, I have learned much more. But it is wrong{#blank#}5{#/blank#}(think) a teacher has fewer questions than his students. Now, look at these two circles. The inside of the{#blank#}6{#/blank#}(big) one is my knowledge of things, and the inside of the smaller one is{#blank#}7{#/blank#}(your). Out of the circles is what is still unknown to us. Since mine is larger, I have to use the longer line to draw the bigger circle. That means I have more opportunities to face something{#blank#}8{#/blank#}(know). And that's{#blank#}9{#/blank#}I myself have more questions than you do. The{#blank#}10{#/blank#}(much) you learn, the more questions you have. You will never learn enough, you know.”

    Parkour (跑酷) is a sport which trains people to deal with any physical obstacles in their path. It is not a competition but a physical training. A person joining in parkour is called traceur. Traceurs run along a path and use only their bodies to deal with obstacles in the most efficient way. Parkour pays more attention to efficiency, {#blank#}1{#/blank#}(make) it different from the similar practice of free running. Parkour {#blank#}2{#/blank#}(common) includes running, jumping, climbing, rolling and other similar types of physical movements. Many teenagers think that parkour is quite{#blank#}3{#/blank#}cool sport. They have great interest in it.

    The {#blank#}4{#/blank#}(invent) of parkour can't {#blank#}5{#/blank#}(give) to one person because many people have worked on it. A french officer developed the earlier form of parkour. The term “parkour” was first introduced by David Belle and Sebastiar Foucan in the early 1980s. {#blank#}6{#/blank#}that time, they were two teenagers. This sport{#blank#}7{#/blank#}(become) more popular in the 1990s when many films were made on it.

    {#blank#}8{#/blank#}makes parkour different from other sports is its power to bring people together. It allows traceurs to forget the{#blank#}9{#/blank#}(society) and other problems, and makes a large group work and grow together instead of competing with each other. People can benefit from parkour as it can make them stronger. Still, it also influences one's thought process by improving self-confidence and critical-thinking skills. In this way, parkour allows one to deal with {#blank#}10{#/blank#}(difficulty) in daily life if he or she deals with them through parkour.