3. Робота над граматичним матеріалом. Повторення. Present, Past, Future Continuous.

Ex. 1. Choose the word (a, b, c, d) that best completes the sentence.

1. Look at Ann! She ... on interesting book (a) is reading; b) reads). She ... every day (c) is reading; d) reads). 2. Listen! John ... in his room (a) sings; b) is singing). He ... very well (c) sings; d) is singing). 3. Usually girls ... tea in the morning (a) drink; b) are drinking). Now they ... coffee (c) are drinking; d) drink).

Exercise 2. Put the verb in brackets into the Present, Past or Future Continuous Tense.

1. He (to take) a bath now. 2. I (not to laugh) at you. 3. He (to come) here next week. 4. If I (to sleep) when he comes, please, wake me up. 5. What journal you (to read) when I came to the library? 6. The whole family (to have) dinner when the telephone rang. 7. Where he (to go) when the rain started? 8. She (to sing) over the radio at 5 o'clock tomorrow. 9. They will not go on excursion with us. They (to have) a lecture at 2 o'clock. 10. What you (to do) from 2 till 3 o'clock tomorrow? 11. The children (to play) when we return home. 12. Look! It is getting dark. It (to rain) in a minute.

Exercise 3. Form questions with the question words given.

1. The expedition is returning next week. (When) 2. We are doing grammar exercises now. (What) 3. The mother is teaching her little son to read. (Who) 4. I am reading a book on modern art. (What) 5. They were still arguing when I entered the room. (Who)

6. Our group was staying in Vitebsk for some days. (For how long)

7. We were talking and he was listening to the radio. (What)

8. They will be moving to a new flat this month, (When) 9. We shall be listening to Petrov at the concert. (When) 10. He is coming tomorrow. (When)

Exercise 4. Translate into English.

1. Что вы обсуждаете?— Мы обсуждаем план будущей экскурсии. 2. Вы идете в кино с нами? 3. О чем вы сейчас думаете? 4. Автобус уже отправлялся, когда я подошел к остановке. 5. Что он делал, когда вы зашли к нему? 6. Идет дождь, и мы не можем поехать за город.

4. Робота над текстом за професійним спрямуванням:cancer cells

The main difference between normal and cancer cell is one of the growth and differentiation: most cancer cells are in their structure more like those of the young organism (fe­tus) than those of the adult.

They generally grow and divide more rapidly and in a dis­organized fashion, but normal cells only divide and grow until they come into contact with adjacent cell and then stop their growth.

Researchers have tried to treat cancers by using drugs which inhibit the division of cells. The most rapidly dividing cancer cells will be affected by these drugs before the more slowly growing normal cells.

The major problem in cancer research is concentrated on trying to find out the more delicate difference between can-cer and normal cells.

Researchers study the structure of the cell wall and try to determine why cancer cells do not recognize other cells.

Another branch of research has been to study the internal mechanism of the cell, to find differences between the nuclei of cancerous and normal cells, because the nucleus is that part of the cell which appears to regulate the growth and differentiation of all cells.

Notes

1. cancer- рак, злокачественная опухоль

2. adjacent - примыкающий, смежный

3. to inhibit - задерживать, тормозить, подав­лять (рост)

4. delicate - деликатный, тонкий

5. nucleus (pl. nuclei)- ядро клетки

6) differentiation - дифференциация