Sport is a positive, active process, in this process, the exercise must organizetheir attention, there are objective perception (observation), memory, thinking and imagination. Therefore, regular physical exercise can improve the human central nervous system, improve the cerebral cortex inhibition and coordination, make thenervous system excitement and inhibition of alternation of strengthening the process, balance and accuracy in order to improve the cerebral cortex nervesystem, promote the development of human perception ability, imagination, make the brain thinking flexibility coordination, response speed is improved. The Soviet Union scholar M.M. Kerr Jia Va with the computer test on born 6 weeks babyexperiment, results show that, the language center often help baby flexion rightfinger movement can accelerate the baby left hemisphere of the brain maturation.Physical exercise can improve the brain cortical response flexibility, activation of brain cell function. USA University of California Piano Professor Sen after years ofresearch, the reaction rate determination of brain cells, can see his speed of thought and IQ, and engaged in regular physical exercise is one of the importantmethods to improve the response rate of brain cells. Participate in regular physicalexercise can make the person develops in space, motion perception ability, make the body feel, feel, touch, and the speed of gravity height is more accurate,thereby improving brain cell tolerance.
Long engaged in a special may lead to physical development is not balanced. Such as badminton players left and right arm is clearly not as thick as. Long engaged inendurance exercise will lead to decline in physical function. There is the occupationdisease.Serious or even cause the disabled are possible
Direct participation in sports activities can be said to be a deep physical and mentalexperience, registration from ready to participate in, from application to actively prepare for war, from preparing to participate, need their own personal execution,the individual ability is a kind of exercise, the will quality is a temper, on the body and psychology is a kind of perfect. I support you actively participate in sports in the past, place oneself among them, not to have a blurred vision, you feel is the one and only, the most real, the most persuasive.
The national development, the economic situation is good, there are high level,high level sport in many places now, our local a marathon, bicycle, outdoor sports,most I as athletes participated in, very interesting, even can't be an athlete, I willbring my camera, to find beauty case, to feel the progress of the society, to the world, it is, place oneself among them, never disappointed.
（翻译：体育运动是一种积极、主动的活动过程，在此过程中，锻炼者必须组织好自己的注意力，有目的地知觉（观察）、记忆、思维和想象。因此，经常参加体育运动能改善人体中枢神经系统，提高大脑皮层的兴奋和抑制的协调作用，使神经系统的兴奋和抑制的交替转换过程得到强化，从而改善大脑皮质神经系统的均衡性和准确性，促进人体感知能力的发展，使得大脑思维想象的灵活性、协调性、反应速度等得以改善和提高。苏联学者M.M.科尔佳娃用电脑测试法对出生6个星期的婴儿进行实验，结果显示，经常帮助婴儿屈伸右手指运动能加速婴儿大脑左半球的语言中枢的成熟。体育锻炼能提高大脑皮质反应的灵活性，激活脑细胞的功能。美国加利福尼亚大学琴森教授经过多年研究认为，测定人脑细胞的反应速度，可以看出他的思考速度和智商的高低，而经常从事体育锻炼是促进脑细胞反应速度提高的重要方法之一。经常参加体育运动还能使人在空间、运动感知能力等方面得以发展，使本体感觉、重力觉、触觉和速度、高度等更为准确，从而提高了脑细胞工作的耐受能力。
长期从事某一专项可能导致身体发展不平衡。比如羽毛球运动员左右胳膊很明显不一样粗。长期从事耐力性运动也会导致身体机能下降。还有就是职业病。严重的甚至导致伤残的都有可能的。直接参与体育活动可以说是一种深层次的身心体验，从准备参与到报名，从报名到积极备战，从积极备战到参与其中，都需要自己亲自执行，对个人能力是一种锻炼，对意志品质是一种磨练，对身体和心理是一种完善。我支持大家积极参与到体育运动中来，置身其中，不是雾里看花，你的感受绝对是独一无二的、最真实的、最有说服力的。
国家发展了，经济形势好了，现在好多地方都有高水平、高级别的体育比赛，我们当地就有马拉松、自行车、户外运动等体育形式，大多数我都作为运动员参与过，很有意思，即使不能做运动员，我也会带着相机，去发现美得案例，去感受社会的进步，去亲近世界，美妙得很，置身其中，从未失望过。）
觉得可以请采纳，谢谢啦
For this part, you are allowed 30 minutes to write a composition based on the topic Positive and Negative Aspects of Sports. You should write no less than 100 words and you should base your composition on the outline (given in Chinese) below: 1. 体育运动的益处。 2. 体育运动能够带来的副作用。 3. 我举羡脊参加体育派正活动正渗的领会。 You must write your composition in no less than 100 words on the Composition Sheet and remember to write it in readable handwriting.
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