Parkour is a new sport that is developing quickly in the world. The aim of parkour is to jump, climb or run over any all stair, or fence on your path easily. Usually, it is done in a city environment. Practicers take very wall or roof as their training place. If you have seen the beginning of the James Bond movie Casino Royale, then you have seen an excellent example of parkour. David Belle, a young Frenchman, developed parkour in the 1990s. His father's experiences as a fireman as well as an acrobat influenced him a lot. His childhood friend, Sebastien Foucan, is the actor in the movie Casino Royale with his parkour performance. Foucan is thought to have developed free-running, which is a more artistic and skillful type of parkour. David belle traveled to India and said one way he trained was by watching a physical one. The aim is to become so skillful, and it is almost unnecessary for you to think about the different actions in running through a path full of barriers . Parkour is not exactly a sport. It is not developed fro competition. It is more about learning to control mind and body in difficult situations. There are many basic movements in parkour. One example is where practicers swing through the narrow space between two bars while keeping their body level with the ground. This is called the underbar. Other movements are the tic-tac and the kong vault jump. Skillful practicers seem to get out of control of gravity. The popularity has spread largely because of parkour videos and organizations on the Internet. And if you search on the Web, you will find parkour groups performing their skills near you. Who performed parkour in the movie Casino Royale? A) David Belle. B) James Bond. C) Sebastien Foucan. D) David Belle's father.
C
Schools across the country are turning green. So-called green schools are built from recycled and environmentally friendly materials. They are designed to use less energy than traditional school buildings. In the next few years, Southern California alone plans to open 150 green schools. Studies have shown that there are good reasons to go green, including good air quality that cuts down on asthma attacks and airborne germs that can cause illnesses. Students learn better in classrooms that have natural light and ideal temperatures. Green schools have lower energy bills. Go On, Get Green Here's how to save energy and help the environment. Light Savers Turn off the lights in a room when it is not in use. This bright idea can produce big savings on energy costs. Some schools use sensors that automatically shut off the lights when there is no motion in a room. Heat Smart Your school's thermostat should be set to 78degCin warm weather and 68degCin cooler weather. The temperature can be even farther from the comfort zone at night and on weekends, when no one is using the school building. Reuse, Recycle Reuse paper, cans, bottles and batteries. Use both sides of notebook paper. Carry a lunch box rather than a paper bag. Recycle whatever you can reuse. Don't Drip Leaky taps can waste large amounts of water. A small, steady flow can add up to hundreds of gallons a year. Report drips if you see them. What is the best title for the passage? A) Green Schools. B) Reusing and Recycling. C) Light Savers. D) No Dripping.
A
Q: All too often, a choice that seems sustainable turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol for fuel from corn. Corn is a renewable resource --you can harvest it and grow more, almost limitlessly. So replacing gas with corn ethanol seems like a great idea. One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but that's not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land -including, in some cases, rain forest in places such as Brazil--into farmland, which in turn gives off lots of carbon dioxide (CO) into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that _ might not help. You cannot really declare any practice "sustainable" until you have done a complete life-cycle analysis of its environmental costs. Even then, technology and public keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainably requires plenty of thought on an ongoing basis. The author thinks that replacing gas with corn ethanol is _ A) impractical B) acceptable C) admirable D) useless
A: A
*Question*
Today, paper-making is a big business. But it is still possible to make paper by hand, since the steps are the same as using big machines. You should use paper with small amounts of printing. Old envelopes are good for this reason. Colored paper also can be used, as well as small amounts of newspaper. Small pieces of rags or cloth can be added. These should be cut into pieces about five centimeters by five centimeters. Everything is placed in a container, covered with water and brought to a boil. It is mixed for about two hours with some common chemicals and then allowed to cool. Then it is left until most of the water dries up. The substance left, called pulp , can be stored until you are ready to make paper. When you are ready, the pulp is mixed with water again. Then the pulp is poured into a mold. The mold is made of small squares of wire that hold the shape and thickness of the paper. To help dry the paper, the mold lets the water flow through the small wire squares. After several more drying steps, the paper is carefully lifted back from the mold. It is now strong enough to be touched. The paper is smoothed and pressed to remove trapped air. You can use a common electric iron used for pressing clothes. The passage is most probably intended to _ . A) introduce the history of paper-making B) describe the process of paper-making C) compare the ancient with the modern paper-making D) argue about the possibility of paper-making by hand
**Answer**
B