Read and say what disease it is.

One major form of cardiovascular disease is.... It is a medical term for dolled arteries. Over a period of time, an artery may be narrowed because of a buildup of fatty deposits called plaque. Plaque causes the once-smooth lining of an artery to bepome thick and rough. The opening to the artery narrows and its elasticity is reduced. The artery cannot expand and contract as it should. As a result, blood flow is affected. The heart must pump harder to force blood through the artery. Thus, blood pressure is increased. If too much plaque builds up in a blood vessel, it forms a thrombus, or a clot, that shuts off the flow of blood.

It is a chronic high blood pressure. It affects more than one in five adults in the world. What is most alarming about it is that over 25 percent of its victims are unaware of their problem. They do not know they need treatment that would relieve the condition.

It creates several conditions that can severely damage the cardio­vascular system. It can cause the heart to work harder to pump blood, thus weakening it. It can cause a speedier buildup of plaque on the walls of arteries. This increases the chances of clot formation. It may cause pressure severe enough to burst an artery wall. In many cases, the causes of this disease are not known.

This disease, especially when due to thrombosis, is sometimes preceded by a history of angina pectoris or primary hypertension. Many patients, however, have had no previous cardiovascular com­plaints. It is sometimes completely or relatively asymptomatic.

The most characteristic complaint is severe substernal oppression, often described as squeezing, pressing or constricting. Dyspnea is 2 common accompaniment; the patient complains that the crushing pres­sure on his chest prevents him from breathing properly. Nausea, vomit­ing, hiccups and abdominal distension sometimes occur. Extreme weak­ness and fear of impending death are occasionally present. The blooc pressure usually falls within a few hours after onset of the attack.

13) Use modal verbs to join the phrases as suggested in the example.

To make an injection — the sterilizer was out of order. I had to mUke an injection, but I could not, as the sterilizer was out of order.

1. To repeat the blood test — the patient was asleep.

2. To make an injection — the syringe was mislaid,

3. To operate on the patient - the patient was not strong enough.

4. To tell the doctor about the patient's condition - the doctor was at a conference.

5. To give orders to the nurse — to be absent.

14) Use a modal verb to express probability as suggested in the example.

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