I. What is missing? Find the missing adjectives in the reading.

1. It is the flowing part of the ___ system.

2. The ___ human body contains between 5 and 6 quarts of blood.

3. Blood in the arteries is bright ___ in color.

4. Blood in the veins is much ___ , sometimes a brownish red.

5. Blood consists of ___ elements, liquid and solid.

6. The plasma is the ___ part of the blood...

7. It carries from the ___ system the nutriments...

8. It gets rid of their ___ products via the kidneys and other organs of excretion.

II. Vocabulary.

Choose the best word for each sentence. Use each word only once. transportation organic vessels antibodies

platelets readily hormones circulates

fight off transfers plasma kidney

regulate

1. Blood is the red fluid that ___ through the body.

2. … which may be called the ___ system of the body.

3. A pint of blood, however, can be ___ spared at proper intervals.

4. These include red and white blood cells, blood ___, and blood plasma.

5. These include, for example, ___ constituents, such as blood sugar (glucose) and urea.

6. The plasma proteins make up about 7 to 8 % of the ___.

7. … which contains ___ against several diseases, notably measles and polio.

8. It ___ oxygen and carbon dioxide between the lungs and the body cells.

9. It conveys ___.

10. It helps ___ body temperature.

11. It provides substances that ___ infection.

III. Oral questions.

1. How does blood circulate through the body?

2. How much blood does the adult human body contain?

3. What colour is the blood in the arteries and veins?

4. What elements does blood include?

5. What gases have to be carried by blood?

6. What have you got to know about gamma-globulin?

7. What are some of the specific functions of the blood?

IV. Choose the correct word corresponding to the definitions be­low.

liquid, plasma, sugar, secretion, oxygen, anti-body

1. Gas without colour, taste, or smell, present in the air and neces­sary to the existence of all forms of life.

2. Clear yellowish fluid in which the blood cells are carried.

3. Process by which certain substances in a plant or animal body are separated (from sap, blood, etc.) for use, or as waste matter.

4. Substance formed in the blood tending to inhibit or destroy harmful bacteria, etc.

5. Substance like water or oil that flows freely and is neither a solid nor a gas.

Sweet substance obtained from the juices of various plants, used in cooking and for sweetening tea, coffee, etc.

V. Restate the following sentences according to the pattern.

A. Change into negative.

Example: She has to take pills twice a day.

She doesn 't have to take pills twice a day.

1. Students have to attend Prof. Silver's lectures.

2. They had to use microbes to make the snow for the ski champi­onship.

3. Essential elements have to be carried from one place to another.

4. They will have to diagnose that infection through serology.

5. I shall have to meet my colleague tonight.

B. Give short answers.

Example 1: Do you have to brush your teeth twice a day?

Yes, I do. / No, I don't.

1. Does he have to meet his friend at the station?

2. Did Peter have to go to Africa to study river blindness?

3. Will you have to use more egg's nuclei for cloning?

4. Do those analyses have to be done?

Example 2: Blood is the red fluid circulating through the body, isn't it?

Yes, it is.

It isn't a simple substance, is it?

No, it isn 't.

1. The investigation of blood hasn't stopped yet, has it?

2. More is constantly being learned about blood, isn't it?

3. A pint of blood can be readily spared at proper intervals, can't it?

4. You can hardly spare more, can you?

5. They found antibodies against some diseases in gamma globu­lin, didn't they?

6. They won't stop their experiments, will they?

C. Change into general questions.

Example: The doctor has to gain the patient's confidence.

Does the doctor have to gain the patient's confi­dence?

1. She had to give up smoking when she became pregnant.

2. People will have to pay lots of money for using this technique. 3. Blood will have to be taken for cross-matching.

4. The doctors had to put the poor Mongoloid child in a special in­stitution.

5. We have to start our tests as soon as possible.

D. Write questions about the words in italics.

Example: Somebody will have to start cloning humans soon.

Who will have to start cloning humans soon?

1. You will have to treat them most carefully.

2. She has to give him the injection.

3. They had to use a microscope to discern the virus.

4. Those cells have to be destroyed soon.

5. This nucleus has to be put into the egg cell.