Research shows that getting plenty of exercise makes the heart beat faster and lung work harder, thus strengthening the heart and reducing the chance of heart attack, and helping to lower blood pressure.
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However I still prefer outdoor activities, for they teach me how to be a strong man, both in health and in spirit.
然而我还是更喜欢户外运动，因为它教会我在身体健康和精神两个方面如何变成一个坚强的人。
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Research shows that getting plenty of exercise makes the heart beat faster and lung work harder, thus strengthening the heart and reducing the chance of heart attack, and helping to lower blood pressure.
研究表明，充分的体育锻炼可以加速心脏跳动、增强肺活量，从而有助于降低血压，增强心脏活力、减少心脏病发病机会。
In the past few years, there has been an increasing awareness of the importance of health.
在过去的几年间，人们已经越来越意识到了健康的重要性。
For those who work with their brains most of the day, the practice of sports is especially useful.
对于那些主要从事脑力劳动的人来说，从事体育运动特别有用。
Physical exercises can increase the circulation of the blood.
体育锻炼能够加速血液循环。
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Physical recreation affords us the opportunities to strengthen our bodies.
体育锻炼可使我们有机会强健体魄。
When we take part in one or another kind of physical exercise, whether it be violent sports such as running, playing football or moderate sports like swimming, jogging, our blood circulation is quickened so that more oxygen is taken in and more waste matter is excreted through sweating. Such experiences contribute much to our appetite and digestion.
当我们参加一种或另一种体育锻炼时，无论是像长跑和踢足球一类的剧烈项目，还是像游泳和慢跑这样的温和项目，血液的循环可以得到加快，身体内可摄入更多的氧分，靠出汗也可将更多的废物排泄出来。这些活动大大促进了我们的食欲和消化。
All over the world millions of people take part in different kinds of sports. Sports are perhaps the most popular form of relaxation that almost all can enjoy.
世界上有许多的人参加不同种类的体育运动。体育运动可能是几乎所有的人都可享受的最大众化的娱乐形式。
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There are different ways to spend our free time, such as physical exercise and intellectual activities.
存在不同的方法打发我们的空闲时间,例如：体育运动和智力的活动.
Physical recreation and intellectual development are the two basic ways in which we college students engage ourselves in our leisure time. Some enjoy physical recreation while others prefer intellectual development.
身体锻炼和智力活动是我们大学生在业余时间里从事的两种基本方式。有些人热衷于体育锻炼，有些人则更喜欢智力活动。
1.Physical exercise：
From strenuous sports such as marathon races to slow paced events like a round of golf, physical exercise affords us the opportunities to strengthen our bodies and to satisfy our competitive nature.
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