To keep healthy, we should eat more vegetables and less _______

A．meat             B．food             C．wine               D．drink

If you often have a cold, headache or backache, there is something wrong with your health. Eating healthy food   43  good for our health. Tofu（豆腐）, milk, vegetables are healthy for us.

Tofu is a kind of traditional（传统的）   44  food. We often   45  it in China. Now more and more people   46  other countries think tofu is good for health,  47 . They also like eating it.

Milk is   48  kind of healthy food. Every day you should   49  one or two glasses of milk. It can   50  us strong.

Vegetables are very important. You should eat   51  them. There are vitamin(维他命) A, B, C, D , E and so on in them.

As we know, it’s important   52  a balanced diet(均衡饮食). We must have the right kinds of food. We should also eat some pork, chicken and beef. We should eat more fruit and vegetables but less meat.

　　Then consider this, you might be in a state of subhealth（亚健康）.

　　Subhealth, also called the third state or grey state, is explained as a border line（不明确）state between health and disease. According to an investigation, over 45 percent of subhealthy people are mid-aged or elderly. The percentage is even higher among people who work in management positions as well as students around exam time.

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

　　The key to preventing and recovering from subhealth, according to some medical experts, is to form good living habits, alternate（交替）work with 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 trace elements（微量元素）--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 digestive tract（消化道）. They also say that a balanced diet is very helpful in avoiding subhealth.

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

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

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

D．When you are in a state of subhealth, you should find out the reason and relax yourself.

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

A．we should never eat meat

B．we should have meals with less salt and sugar

C．we should eat less

D．we should have meals without salt and sugar

A．some illness that people suffer from

B．the way to develop good habits

C．some doctors'advice

D．the link between healthy habits and healthy body