公共英语五级完型填空练习题
___comfortable speed improves the efficiency of the cardio respiratory system(35) ___stimulating the lungs and heart，but at a more gradual rate(36) ___most other forms of exercise.
In one test，a group of men 40 t0 57 years of age，(37) ___at a fast pace for 40 minutes four days a week，showed improvement(38) ___to men the same age on a 30 minute，three―day―a―week jogging program in the same period.Their resting heart rate and body fat decreased(39) ___.These changes suggest(40) ___of the important-even vital--benefits walking can(41) ___about.
Walking(42) ___burns calories.It takes 3，500 calories to gain or(43) ___0ne pound.Since a one.hour walk at a moderate pace will(44) ___up 300 t0 360
calories.By walking one hour every other day，you Can burn up a pound―and―a―half monthhly，or l8 pounds(45) ___-providing there is no change in your in-take of food.To(46).___weight faster，walk an hour every day and bum up 3 pounds a month，or 36 pounds a year.
(47) ___your age，right now is the time to give your physical well-being as much thought as you(48) ___to pensions or insurance.Walking is a vital defense(49) ___the ravages of degenerative diseases and aging.It is nature’s (50) ___of giving you a tuneup.
答案解析：
参考译文
行走就像游泳、骑自行车和跑步一样，是一种有氧运动，可以通过给皮肤和肌肉增加供氧而塑造更大的肺活量和耐力。这样的运动可能是防止心脏和血液循环疾病的一个主要因素。
作为可能是最不费力气、最安全的有氧运动，绝大多数人认为行走可以接受。以舒适的速度行走可以通过激活肺部和心脏增强心肺系统的效率，但比起大多数其他的锻炼形式，行走的速度更为舒缓。
在一项测试中，一组40到57岁的男子每周4天快速行走40分钟，与同样年龄每周同期进行3次30分钟慢跑的男子收到了同样的改善效果。他们的正常心率和身体脂肪明显降低。这些变化表明行走可以带来重要的，甚至是关键的益处。
行走也可以燃烧热量。获得或失去一磅重量需要消耗3 500卡热量。因为以中等速度走一小时的路程将会消耗300到360卡的热量。每隔一天行走一小时，则每月可以减去一磅半的脂肪，或者说一年可以减去l8 磅脂肪，只要您每日摄入的食物量不变。为了更快减去体重，每天行走一小时，那么每月就可以减去3磅脂肪，一年就是36磅。
不管您的年龄有多大，现在都应该花同样时间考虑身体和养老金或保险。行走是一种关键的抵御疾病和抗衰老的方法。它是自然界给您的一种调整的方式。
答案及解析
31.which 【解析】此空前一句意为“行走就像游泳、骑自行车和跑步是一种有氧运动”，此空所在句意为“…通过增加给皮肤和肌肉的供氧而塑造更大的肺活量和耐力。”由这两句可知，此空应填which，which引导定语从旬，修饰“all―aerobic exercise”。
32.prevention 【解析】本句意为“这样的运动可能是…心脏和血液循环疾病的一个主要因素。”显然，此空处应填“防止”。
33.most 【解析】由本句中的“the least strenuous，safest…”可知，此空处应填表示程度的最高级，再由acceptable exercise“接受的运动”可知应填most。
34.at 【解析】“以舒适的速度行走”用英语说应是“walking at a comfortable speed”，介词应用at。
35.by 【解析】显然，由本句句意可知此空处应填一个表示“通过”的介词，应用介词by。
36.than 【解析】由“a more…most other…”可知，此空处显然应填than，短语more than other表示“比其他…更多的…”。
37.walking 【解析】由上两段可知，该短文主要讲述步行的好处，此处做试验，肯定是测试步行。
38.equal 【解析】equal to意为“等于”，由句意“显示出…同样年龄的男人每周在同样时段进行3次慢跑。”可知，此空必须填“等于”。
完型填空练习三
Read the following text and fill each of the numbered spaces with ONE suitable word.
Children who grip their pens too close to the writing point are likely to be at a disadvantage in examinations，(31) ___to the first serious investigation into the way in which writing technique Can dramatically affect educational achievement.
The survey of 643 children and adults，ranking from pre-school t0 40-plus，also suggests(32) ___pen―holding techniques have deteriorated sharply over one generation，with teachers now paying far(33) ___attention to correct pen grip and handwriting style.
Stephanie Thomas，a leraning support teacher(34)―___findings have been published，was inspired to investigate this area(35) ___he noticed that those students who had the most trouble with spelling(36) ___had a poor pen grip.While Mr.Thomas could not establish a significant statistical link(37) ___pen―holing style and accuracy in spelling，he(38) ___find huge differences in technique between the young children and the mature adults，and a definite(39) ___between near―point gripping and slow，illegible writing.
People who(40) ___―their pens at the writing point also show other characteristics(41) ___inhibit leraning，(42) ___as poor posture，leaning too(43) ___to the desk，using four fingers to grip the penn(44) ___than three，and clumsy positioning of the thumb(which can obscure(45)――is being written).