Feel tired lately? Has a doctor said he can't find anything wrong with you? Perh

    Feel tired lately? Has a doctor said he can't find anything wrong with you? Perhaps he has sent you to a hospital, but all the advanced equipment there shows that there is nothing wrong with you

    Then, consider this: you might be in a state of sub-health. Sub-health, also called the third state or gray state, is explained as a borderline state between health and disease

    According to the investigation by the National Health Organization, over 45 percent of sub-healthy people are middle-aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam-week

    Symptoms(症状) include a lack of energy, depression, slow reactions, insomnia, anger, and poor memory. Other symptoms include shortness of breath, sweating and aching in the waist and legs

    The key to preventing and recovering from sub-health, according to some medical experts, is to form good living habits, alternate work and rest, exercise regularly, and take part in open air activities

    As for meals, people are advised to eat less salt and sugar. They should also eat more fresh vegetables, fruits, fish because they are rich in nutritional elements -- vitamins and other elements that are important to the body. Nutrition experts point out that it is not good to eat too much at one meal because it may cause unhealthy changes in the digestive tract. They also say that a balanced diet is very helpful in avoiding sub-health

68. When you are in a state of sub-health, you should_______. 

   A. stay at home and have a good rest.      

   B. go to see a doctor and buy some medicine

   C. have yourself examined with advanced equipment

   D. find out the reasons and relax yourself

69. It may be easy for middle-aged people to get sub-healthy because _______

   A. they have used up their energy               

   B. they have lost their living hopes

   C. they have more pressure in life and work       

   D. they begin to get older

70. We can know form the passage if you____, you can avoid falling into a state of

   sub-health.          

   A. eat more fresh vegetables and fruits      B. develop good living habits

   C. sleep more                                D. take more medicine

71. The underlined word "alternate" in this passage is closest in meaning to ____

   A. keep oneself busy with              B. cause to take place          

   C. arrange by turns                          D. get rid of

试题答案

68-71  DCBC