“Our aim is to take our art to the world and make people understand what it is to move，” said David Belle, the co­founder of parkour (跑酷)．
Do you love running? It is a good exercise, yet many people find it boring. But what if making your morning jog a creative one？Like jumping from walls and over gaps and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond's wonderful performances that the sport has become popular worldwide.
Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.
Parkour can be just as exciting and charming as it sounds，but its participants see parkour much more than that.
Overcoming all the obstacles on the course and in life is part of the philosophy (哲理) behind parkour. This is the same as life. You must determine your destination, go straight, and jump over all the barriers as if in parkour and never fall back from them in your life, to reach the destination successfully. A parkour lover said，“I love parkour because its philosophy has become my life, my way to do everything.”
Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.
【小题1】Parkour has become popular throughout the world because of ________.

Meeting people from another culture can be difficult. From the beginning, people may send the wrong signal （信号）. Or they may pay no attention to signals from another person who is trying to develop a relationship.
Different cultures emphasize （强调） the importance of relationship building to a greater or lesser degree. For example, business in some countries is not possible until there is a relationship of trust. Even with people at work, it is necessary to spend a lot of time in "small talk", usually over a glass of tea, before they do any job．In many European countries -- like the UK or France -- people find it easier to build up a lasting working relationship at restaurants or cafes rather than at the office.
Talk and silence may also be different in some cultures. I once made a speech in Thailand．I had expected my speech to be a success and start a lively discussion; instead there was an uncomfortable silence. The people present just stared at me and smiled．After getting to know their ways better, I realized that they thought I was talking too much. In my own culture, we express meaning mainly through words, but people there sometimes feel too many words are unnecessary.
Even within Northern Europe, cultural differences can cause serious problems. Certainly, English and German cultures share similar values; however, Germans prefer to get down to business more quickly. We think that they are rude. In fact, this is just because one culture starts discussions and makes decisions more quickly.
People from different parts of the world have different values, and sometimes these values are quite against each other. However, if we can understand them better, a multicultural environment （多元文化环境） will offer a wonderful chance for us to learn from each other.
【小题1】In some countries, eating together at restaurants may make it easier for people to _____.

It is not a secret that these are turbulent times that put everyone on edge all the time and it makes people angry with their families, co-workers, friends and relatives, frustrated (沮丧的)and highly annoyed just for the noise of the neighbors or the music coming from the opposite house. Anger and negative energy have a strong influence on everyone’s life, even when they don’t realize it.
Being in a calm state of mind is simply wonderful. Results of this can be seen when parents no longer shout at their children over any small thing and when one can keep him cool when bad things happen and doesn’t let the situation become worse by his negative influence.
Also results can be seen on a larger scale. In 1993 a very interesting scientific experiment called The US Transcendental Meditation experiment was conducted in Washington. A company called TM got 4,000 calm and relaxed people to simply sit and meditate (冥想) in a central Washington convention center. The results of this experiment showed that during those particular 8 weeks, violent crimes, such as murder, rape, assaults, clearly decreased by as much as 23%.
This is evident proof that meditation can change the state of mind, bring back peace of mind and collective meditation is contagious (蔓延的), just as anything done collectively is contagious. For example, a person has the urge to become aggressive (while in normal circumstances that person is very calm and normal), just because he is sitting at a stadium watching a football game and everyone around is shouting and is aggressive.
Isn’t increasing the quality of life worth spending 20 minutes of time on meditation? Yes, very few people follow through with a meditation method that should be a joy to do. Many start and leave it after only a few sessions.
So if collective meditation has proven that meditation works, that it calms people down and that it brings their levels of stress down, why not employ it in everyday life?
【小题1】The underlined word “turbulent” in Paragraph 1 is closest in meaning to “     ”.

About this time every year, I get very nostalgic(怀旧的). Walking through my neighborhood on a fall afternoon reminds me of a time not too long ago when sounds of children filled the air, children playing games on a hill, and throwing leaves around in the street below. I was one of those children, carefree and happy. I live on a street that is only one block long. I have lived on the same street for sixteen years. I love my street. One side has six houses on it, and the other has only two houses, with a small hill in the middle and a huge cottonwood tree on one end. When I think of home, I think of my street. Only I see it as it was before. Unfortunately things change. One day, not long ago, I looked around and saw how different everything has become. Life on my street will never be the same because neighbors are quickly grown old, friends are growing up and leaving, and the city is planning to destroy my precious hill and sell the property to contractors.
It is hard for me to accept that many of my wonderful neighbors are growing old and won’t be around much longer. I have fond memories of the couple across the street, who sat together on their porch swing almost every evening, the widow next door who yelled at my brother and me for being too loud, and the crazy old man in a black suit who drove an old car. In contrast to those people, the people I see today are very old neighbors who have seen better days. The man in the black suit says he wants to die, and another neighbor just sold his house and moved into a nursing home. The lady who used to yell at us is too tired to bother any more, and the couple across the street rarely go out to their front porch these days. It is difficult to watch these precious people as they near the end of their lives because at once I thought they would live forever.
The “comings and goings” of the younger generation of my street are now mostly “goings” as friends and peers move on. Once upon a time, my life and the lives of my peers revolved around home. The boundary of our world was the gutter at the end of the street. We got pleasure from playing night games or from a breathtaking ride on a tricycle. Things are different now, as my friends become adults and move on. Children who rode tricycles now drive cars. The kids who once played with me now have new interests and values as they go their separate ways. Some have gone away to college like me, a few got married, two went into the army, and one went to prison. Watching all these people grow up and go away makes me long for the good old days.
Perhaps the biggest change on my street is the fact that the city is going to turn my precious hill into several lots for new homes. For sixteen years, the view out of my kitchen window has been a view of that hill. The hill was a fundamental part of my childhood life; it was the hub of social activity for the children of my street. We spent hours there building forts, sledding, and playing tag. The view out of my kitchen window now is very different; it is one of tractors and dump trucks tearing up the hill. When the hill goes, the neighborhood will not be the same. It is a piece of my childhood. It is a visual reminder of being a kid. Without the hill, my street will be just another pea in the pod.
There was a time when my street was my world, and I thought my world would never change. But something happened. People grow up, and people grow old. Places changes, and with the change comes the heartache of knowing I can never go back to the times I loved. In a year or so, I will be gone just like many of my neighbors. I will always look back to my years as a child, but the place I remember will not be the silent street whose peace is interrupted by the sounds of construction. It will be the happy, noisy, somewhat strange, but wonderful street I knew as a child.
【小题1】The writer calls up the memory of the street _____________.

-What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio-technology(生物技术). With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today’s leading killers, such as heart disease, cancer, and aging itself, will become distant memories.
In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live, Human brains were known to decide the final death. Cells are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine repair their organs(器官). The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.
It is exciting to imagine that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future.
【小题1】 According to the passage, human death is now mainly caused by __________.