1. Study the text and say which statements given below are true and which are false. Correct the false ones using the text:

1) Cataract is one of the most common causes of blindness.

2) Cataract is treated surgically.

3) Causes of cataract cannot be prevented.

2. Review the text and answer the following questions:

1) What is cataract? What types of cataract do you know? What age suffers cataract? How is cataract treated? When is surgery administered to cataract patients? What may cataract cause when mature?

TONSILLITIS

Infection of the throat affects almost every child in congested and polluted areas, and adults too. The two marble-like fleshy parts on either side of the throat swell. When the tonsils turn septic, the patient will not be able to swallow, there will be fever and the body will become weak.

The tonsils are the gatekeepers which check the entry of grams. In children these tonsils are very active in fighting any unwanted and harmful matter introduced from outside.

During the work of preventing harmful material getting into the body, the tonsils themselves are affected. Germs attack them and puss forms. Also when the body is subjected to sudden severe cold or heat, the tonsils are affected.

When the body loses its power to ward off infection, almost the first victim in a child is this part in the throat. The remedy lies in building up the bodily resistance to diseases.

1. Study the text and say which statements below are true and which are false. Correct the false ones using the text:

1) Infection of the throat affects only children in congested and polluted areas.

2) Tonsils can be described as marble-like fleshy parts situated on either side of the throat.

3) In case of tonsillitis the tonsils turn septic and swell.

4) In case of tonsillitis the patient will not be able to swallow, there will be fever and the body will became weak.

5) The tonsils cannot check the entry of grams.

2. Review the text and answer the following questions:

1) In what areas does throat infection occur most often?

DIABETES

This ailment, considered hereditary, can afflict persons at any age, though mainly who are inactive. When the pancreas fails, the sugar gets into the blood stream in excess quantities.

The bigger part of the pancreas sends its secretion to the small intestine. The smaller part secretes insulin directly into the blood. The conversion of starch into glucose is called carbohydrate metabolism. Glucose is converted into glycogen as a fuel for bodily purposes.

When the starch is not converted into such fuel, because of excess sugar intake or insufficient production of insulin by a diseased pancreas, it enters the blood stream. The kidneys are then unable to strain the excess sugar and excrete it through the urine. Thus a vital ingredient of your food, carbohydrates, which runs the body dynamo, is wasted.

In a diabetic patient the pancreas swells, the tissues die and insulin production stops. That is why insulin has to be injected daily in severe cases.

1. Study the text and say which statements below are true and which are false. Correct the false ones using the text.

1. Diabetes is not a hereditary disease.

2. When the pancreas fails, the sugar gets into the blood stream in excess quantities.

3. The pancreas sends its secretion not only to the small intestine and into the blood stream.