Like distance runners on a measured cour, all of us will move through time

题文

     Like distance runners on a measured cour, all of us will move through time in a roughly predictable pattern. In the first stage of our lives, we develop and grow, reaching toward the top of physical vitality. After we grow up, however, the body begins a process of gradually wearing out.     A new awareness of physical fitness may help lengthen our years of health and vitality, yet nothing we do will work to stop the unavoidable force of aging.Most of the changes of aging take place deep inside the body. The lungs become less able to take in oxygen. Powerful muscles gradually lo their strength. The heart los power and pumps less blood. Bones grow easier to break.   Finally, we meet a stress, a stress that is greater than our physical resistance. Often, it is only a minor accident or chance infection (a dia caud by virus), but this time, it brings life to an end. In 1932, a classic experiment nearly doubled the lifetime of rats, simply by cutting back the calories in their diet. The reason for the effect was then unknown. Today, at the University of California at Berkley, Dr. Paul Seagle has also greatly lengthened the normal lifetime of rats. The result was achieved through a special protein limited diet, which had a great effect on the chemistry of the brain. Seagle showed that within the brain, specific chemicals control many of the signals that influence aging. By changing that chemical balance, the clock of aging can be ret.    For the first time, the mystery of why we age is being riously challenged. Scientists in many fields are now making striking and far-reaching discoveries. An average lifetime lasts 75 years, yet in each of us liesa potential for a longer life. If we could keep the vitality and resistance to dia that we have at agetwenty, we would live for 800 years. 1. What does the underlined word "it" refer to?A. Physical vitality.B. Stress.C. Aging.D. Physical resistance. 2. Which of the following is not a change of aging？A. The lungs become unable to take in oxygen. B. People gradually lo their muscle strength. C. The heart los power and pumps less blood. D. Bones tend to break more easily. 3. The author believes the following except that ________. A. human's life pattern is predictableB. physical fitness can't stop the force of agingC. human's lifetime will last longer than 75 yearsD. all of the changes of aging take place deep inside the body 4. How did Dr. Paul Seagle lengthen the lifetime of rats in his experiment?A. By limiting the protein in their diet.B. By cutting the calories in their diet.C. By retting their clock of aging. D. By keeping their physical fitness. 5. What is probably the best title for the article? A. Two Great Experiments  B. The Mystery of Human LifeC. Ways to lengthen Human Life D. The Breakthrough in the Study of Aging 题型：未知难度：其他题型

答案

1-5: BADAD

解析

该题暂无解析

考点

据考高分专家说，试题“ Like distance ru.....”主要考查你对 [日常生活类阅读 ]考点的理解。 日常生活类阅读

日常生活类阅读的概念：

日常生活这一话题主要涉及人们衣食住行等方面的活动。这一话题的选材主要针对人们日常的工作，生活以及学习情况。做这一类题时，最主要的是要把握好人物的活动内容，时间和地点。

日常生活类阅读题答题技巧：

【题型说明】该类文章内容涉及到人们的言谈举止、生活习惯、饮食起居、服饰仪表、恋爱婚姻、消遣娱乐、节日起源、家庭生活等。文章篇幅短小，追根溯源，探索各项风俗的历史渊源，内容有趣。命题也以送分题为主，如事实细节题、语义转换题、词义猜测题和简单推理判断题等。虽然这类文章读起来感觉轻松，试题做起来比较顺手，但绝不能掉以轻心。因为稍不留神，就会丢分。 【备考提醒】为了保证较高准确率，建议同学们做好以下几点： 1、保持正常的考试心态。笔者在教学中发现，越是容易的试题，同学们越是容易失分。为什么呢？因为在这种情况下，同学们极易产生麻痹思想，认为题目好做，就不引起高度重视，于是思维不发散、不周密。而命题人就是利用同学们的这一弱点，设计陷阱题。所以，无论试题难易与否，我们都要保持正常的考试心态。试题容易，不欣喜；试题难，不悲观。 2、根据前面讲到的方法，认认真真、细细心心做好事实细节题。 3、做好语义转换题。这类题是根据英语中一词多义和某些词语在文中能表达一定的修辞意义的原则而设计的。要求同学们解释某生词的含义，确定多义词或短语在文中的意思，确认文中的某个代词所指代的对象，或者对英语中特有的表达、格言、谚语进行解释。这种题要求同学们一定要根据上下文猜测词义或理解句子，切不可望文生义。 4、做好简单推理判断题。简单推理判断题要以表面文字为前提，以具体事实为依据进行推理，做出判断。这种推理方式比较直接，只要弄清事实，即可结合常识推断出合理的结论。