2013年公共英语五级考试：完型填空强化练习(3)

2013-10-26 22:14:36来源：百度文库

　　Read the following text and fill each of the numbered spaces with ONE suitable word.

　　Write your answers on ANSWER SHFFT l.

　　Walking-like swimming，bicycling and running--is an aerobic exercise，(31)___builds the capacity for energy output and physical endurance by increasing the supply of oxygen to skin and muscles.Such exercises may be a primary factor in the(32) ___0f heart and circulatory disease.

　　As probably the least strenuous，safest aerobic activity，walking is the(33) ___acceptable exercise for the largest number of people.Walking(34) ___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 monthly，or l8 pounds(45) ___-providing there is no change in your in-take of food.To(46).___weight faster，walk an n 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”。

　　39.significantly【解析】由本句句意“他们的正常心率和身体脂肪减少…”可知，此空应填一个副词，修饰decreased，该副词意思应为“显着地，明显地”。

　　40.some 【解析】由“of the important…benefits”可知，此空应填一个代词，又由于benefits为可数名词复数，故填some。

　　41.bring 【解析】bring about为介词短语，意为“带来”。