Although considered an excellent exercise, jumping rope has never received widespread acce

Although considered an excellent 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(重复乏味的)—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 equally to 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】 One reason that can explain why rope-jumping has not spread widely is that
. A．it benefits the cardiovascular systemB．it is too difficult for people to learn to jumpC．it is believed to be boring and repetitiveD．it requires little equipment, time and space【小题2】 The first sentence in Paragraph 2 means that in rope-jumping. A．there is only one proper way to followB．the usual way should not be used againC．the easiest way is always the best oneD．there are different kinds of ways to follow【小题3】According to the researchers, jumping rope . A．only prepares the brain for learningB．is suitable for students onlyC．helps both brain hemispheres work togetherD．can be dangerous for old people【小题4】What does the writer think of rope-jumping? A．He is strongly against it. B．He is for it. C．The passage doesn’t mention it. D．He knows little about it.　

(答案→)　 解析：人们都知道跳绳是有好处的, 但由于某些原因不能坚持, 作者建议人们可以换着花样去跳, 这样可避免单调, 也能很好地锻炼身体。跳绳是不需要很多时间、空间的, 但却能令我们健康地运动。【小题1】选C。细节理解题。根据第一段最后一句可知很多人认为跳绳简单重复, 不如别的有趣。【小题2】选D。推理判断题。第二段的首句的句意为: 事实上, 只要你找到正确的练习的方式, 跳绳可以非常有趣。根据句意可推知下面会向读者介绍正确的跳绳方式。【小题3】选C。细节理解题。根据第三段第二句It is an exercise allowing both brain hemispheres to perform equally to each other. 可知跳绳有助于平衡大脑两个半球共同运动, 故选C项。【小题4】选B。观点态度题。通过作者介绍跳绳的好处来看, 作者是支持跳绳运动的, 故选B项。

和我的回答一样，看来我也对了