题目内容
3.We've all seen them:perfectly toned famous people on late-night television telling us that we too can develop rock-hard abdominal muscles(腹部的).It's easy!Just pay 149.99for the Torso Track or 149.75for the Ad-Doer and watch those unwanted inches leave your waist.Americans spend tens of millions of dollars on various products to firm up their fat around the waist.And did they work?Not necessarily.Independent studies have concluded that most of these products----no matter who approved them or how expensive they are----shape your midsection no better than old-fashioned stomach crunches(仰卧起坐).Some can even cause injury----like the 518.99Body Shaper-Q8SP,which left electrical burns on some researchers at the University of Wisconsin,La Crosse.Others,like the popular Ab-Doer,typically burn less energy than a gentle walk,according to a study to be published in September by the American Council on Exercise.
The fact is that many Americans don't have the biological makeup to develop an obvious abdominal muscles.They are either unable to get the necessary muscle mass or they can't lose enough fat to make a difference.Even if the underlying muscles are well developed,all it takes to hide it is one-sixteenth of an inch of fat.That's enough to exclude most healthy women as well as plenty of guys who do crunches every day.
So what works best?In its new study,the exercise experts researched on the results of the popular Ab-Doer.A lengthy TV advertisement promises that just 10minutes a day performing such movements as"Body Boogies"and"Good Mornings"will"help form those muscles the fun and easy way without diets."Steven Loy,professor at California State University,Northridge,tested the promise by measuring the electrical activity produced by the abdominal muscles during three Ab-Doer movements.He and his colleagues then compared the results with those produced during traditional exercises.They determined that the muscles were no more active,and in some cases less so,when exercisers were using the Ab-Doer.
Taking a broader approach,researchers at San Diego State University compared 13abdominal
exercises for their ability to develop the central abdominal muscles.They concluded,in a report published in May,that the most effective exercises kept turning the body and worked the muscles the entire time.Among the winners:the bicycle movements----so called because it looks as if you are riding a bike while lying flat on the floor----and exercises performed on the"Captain's Chair",a product typically found in gyms that helps hold the body in the air while you raise your legs up toward your chest.Researchers suggested that a varied routine of the different exercises could deliver the best results.
21.Which of the following is the most effective in building abdominal muscles?B
A.Torso Track.
B.Captain's Chair.
C.Ab-Doer.
D.Body Shaper-Q8SP.
22.According to the author,it's difficult for many Americans to get visible firm abdominal muscles mainly becauseA
A.how big their muscles will be is determined by birth
B.they change their exercise routine regularly
C.injuries interrupt their exercise frequently
D.they do not put in enough efforts
23.The author convinces the readers by.B
A.describing successful cases
B.presenting findings of researches
C.offering comments directly from exercisers
D.comparing advertisements of products
24.What's the main purpose of this passage?C
A.To sponsor rich healthy lifestyle based on advanced product research.
B.To indicate that diet and exercises are necessary factors for a fit midsection.
C.To promote proven exercise techniques and to advise against false advertisements.
D.To research and develop in order to create the perfect stomach and exercise machine.
分析 作者讲述了一些运动塑身的方法,比较他们的效果,以及告诫大家不要被虚假广告误导.
解答 21.B. 细节理解题.由最后一段the most effective exercises kept turning the body and worked the muscles the entire time,后面引出Captain's Chair,可知Captain's Chair是塑造肌肉最有效的方法,故选B.
23.A.理解推断题.由第三段The fact is that many Americans don't have the biological makeup to develop an obvious abdominal muscles可知,美国人是否可以锻炼肌肉是基因天生的,故选A.
24.B.写作手法题.由全文内容知,作者列举了一个个科学家的实验来证明自己的观点,故选B.
25.C.主旨归纳题.由全文内容知,作者讲述了一些运动塑身的方法以及告诫大家不要被虚假广告误导,故选C.
点评 本篇文章较长,难度偏大,因此考生可以先阅读题干要求,在带着问题阅读原文,没有对应题目的语段可直接略过,加快阅读速度,也方便做题.

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