题目内容：
Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B, C and D on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the 1 of rushing through life, being on the go from morning till night it is hard to 2 down. But relaxation is essential for a 3 mind and body.
Stress is natural part of everyday life and there is no way to 4 it. In fact, it is not the bad thing it is often 5 to be. A certain amount of stress is vital to provide 6 and give purpose to life. It is only when the stress gets out of control 7 it can lead to poor performance and ill health.
The amount of stress can withstand 8 very much on the individual. Some people are not afraid of stress, and 9 characters are obviously prime material for managerial responsibilities. 10 lose heart at the first signs of unusual difficulties.
When 11 to stress, in whatever form, we react both chemically and 12 . In fact we make choice between "flight and fight" and in more 13 days the choices made the difference between life and death. The crises we meet today are unlikely to be so extreme, 14 however little the stress, it 15 the same response. It is 16 such a reaction lasts long, through continued exposure to stress, that health becomes 17 . Such serious conditions as high blood pressure and heart diseases have 18 links with 2 stress. Since we cannot 19 stress from our lives (it would be 20 to do so even if we could ), we need to find ways to deal with it. A．routine
B．habit
C．custom
D．tradition
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