How often do you sit still and do absolutely nothing．The usual answer these days is“never”．or“hardly ever”．As the pace of life continues to increase，we are fast losing the art of relaxation．Once you are in the habit of rushing through life，being on the go from morning till night，it is hard to slow down．But relaxation is essential for a healthy mind and body．
Stress is fl natural part of everyday life．There is no way to avoid it, since it takes many and varied forms-driving in traffic，problems with personal relationships are all different forms of stress．Stress，in fact，is not the“baddy”it is often reputed to be．A certain amount of stress is vital to provide motivation and give purpose to life．It is only when the stress gets out of control that it can lead to poor performance and ill health．
The amount of stress a person can withstand depends very much on the individual．Some people are not afraid of stress，and such characters are obviously prime material for managerial responsibilities．Others lose heart at the first sight of unusual difficulties．When exposed to stress，in whatever form，we react both chemically and physically．In fact we make a choice between “fight” or “fright” and in more primitive days the choice made the difference between life and death．The crisis we meet today are unlikely to be so extreme，but however little the stress，it involves the same response．All the energy is shifted to cope with the stress．It is when such a reaction lasts long，through continued exposure to stress，that health becomes endangered．Such serious conditions as high blood pressure and heart disease have established links with stress．
Stress in some people produces stomach disorders，while others experience tension headaches．Since we cannot remove stress from our 1ires，We need to find ways to cope with it．
People are finding less and less time for relaxing themselves because      .

A．they are working harder than they used to

B．they are often too busy to find the time

C．they are not clear of how to relax by themselves

D．they are suffering from the effects of stress

What is implied but not stated in the passage?

A．The art of relaxation can greatly help people bear stress．

B．People in primitive days know certain ways to deal with stress．

C．If one gets into the habit of relaxing every day he can overcome stress easily．

D．Stress can lead to serious health problem if one is exposed to it for too long．

The underlined sentence in Paragraph 2 suggests that      ．

A．stress is not always a bad thing for people

B．stress has a bad reputation of causing ill health

C．stress is not so terrible as people often believe it to be

D．stress is always harmful to people all the time

According to this passage，which of the following statements is true?

A．Relaxation in life only benefits us mentally．

B．Different people can stand different amounts of stress.

C．All the stress can lead to poor performance．

D．Large amounts of stress is important to people's lire．

What is the writer's attitude to stress according to the passage?

A．Stress as well as relaxation is essential for a healthy mind and body．

B．Stress should not be rid completely from the life．

C．Stress produces both positive and negative effects on people．

D．People usually work better under stress if they are healthy．