What kind of sports impressed you most during your childhood? Maybe racing around the playground or skipping rope for hours would bring you pleasure. At that time you weren’t thinking of fitness, you were just thinking of entertainment. But in this age of high-tech home equipment and underused gym memberships, the simple joy of jumping rope has been forgotten. I think rediscovering it probably will give you a total-body exercise. Although considered an excellent form of exercise, jumping rope has never received widespread acceptance because of two reasons. First,most people recognize jumping rope as an excellent form of cardiovascular (心血管的) exercise, but they also believe that it is simply too difficult. In other words, they don’t think they’ll be able to continue jumping for the near 20 minutes in order to achieve a beneficial physical effect. Second, many regard it as somewhat boring and overly repetitive —not as something fun or enjoyable. As a matter of fact, jumping rope can be great fun as long as you find a proper way to practise it . Instead of doing the usual two-foot bounce(跳) over and over again, players good at rope-jumping often change their pattern every 10 or 20 jumps. A single bounce, a double –bounce , a skip, a knee-up, side swings , as well as a variety of other easy-to-learn free-style rope-jumping . Nowadays researchers are discovering that jumping rope also prepares the brain for learning . It is an exercise allowing both brain hemispheres（半球）to perform equallyto each other . In short, jumping rope can be a life-long activity requiring little equipment, time and space , yet leading to a much healthier life. 小题1:The main purpose of the first paragraph is to tell us that . A．people would rather have exercise in a gym than do sports outside B．there seems to be too much advanced equipment for people to use C．racing around the playground was regarded as children’s favorite sport D．jumping rope has escaped from people’s memories in modern society 小题2:One reason that can explain why rope jumping has not spread widely is that_____. A．it benefits the cardiovascular system B．it is too difficult for people to learn to jump C．it is believed to be boring and repetitive D．it requires little equipment, time and space 小题3:The first sentence in Paragraph 3 implies that in rope jumping . A．there is only one proper way to follow B．the usual way should not be used again C．the easiest way is always the best one D．there are different kinds of ways to follow 小题4:According to the researchers , jumping rope . A．only prepares the brain for learning B．is suitable for students only C．helps both brain hemispheres work together D．can be dangerous for old people 小题5:What is the author’s attitude towards rope jumping ? A．He strongly argues against it. B．He is in favour of it. C．He is sitting on the fence of it . D．He knows little about it .