homeless

D. all of the above

4. Which statement about Israel is NOT true according to the passage?

A. It became a country in 1948.

B. It is different from all its neighbors in religion.

C. It is now a world leader in many industries, such as IT and modern agriculture.

D. No country has supported it since it was founded.

B

　　　　　　　　　　Healthy Habits, Healthy Body

　　Feel tired lately? Has a doctor said he couldn't find anything wrong with you? Perhaps he sent you to a hospital, but all the advanced equipment there showed that there was nothing wrong with you．Then, consider this：you might be in a state of sub-health(亚健康)．

　　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(征兆)include a lack of energy, depression(压抑),slow reactions, insomnia(失眠),agitation, 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 element---vitamins and trace elements that are important to the body．

　　Nutrition(营养)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(消化系统)．They also say that a balanced diet is very helpful in avoiding sub-health．

5．According to this passage, which of the following is right?

A．When you are in a state of sub-health, you should stay home and keep silent．

B．When you are in a state of sub-health, you should go to see a doctor and buy some medicine．

C．When you are in a state of sub-health, you should have yourself examined in foreign countries．

D．When you are in a state of sub-health, you should find out the reasons and relax yourself．

6．Middle-aged people may be easy to get sub-health 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