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Тема 18. Силікати. Використання силікатів у промисловості.

Мета: формувати навички студентів правильно використовувати нову професійну лексику; розвивати логічне мислення; виховувати культуру мовлення.

 

Обладнання: малюнки до теми, роздруківки текстів для читання та завдань, словники.

План заняття

І Організаційний момент. Привітання

ІІ. Читання тексту “Silicates ” з підручника В.Е. Коваленко «English»

Звертаючи увагу на наступні вирази : second to oxygen, clay beds

ІІІ. Закріплення комунікативних навичок

Answer the questions.

1.Does silicon occur free?

2. In what combinations does it occur?

3. What is quartz?

 

Group work

Take turns asking and answering the questions, try to speak without textbooks.

 

Make the plan of the text.

 

 

Завершіть речення як у зразку.

Model: This year he must work very hard, but a year ago

he didn't have to.

1. Now I must help her but last year I ... 2. This term the students must attend the lectures in the evening but last term they ... 3. We must carry out a number of experiments but a year ago we . .

 

Ex. 1 Знайдіть речення в яких дієслово"to be" є модальним

1. The laboratory was lit up very well. 2. This substance is to be heated to a high temperature. 3. In this experiment we were to find out all the properties of this substance. 4. This example was referred to by our teacher. 5. Hot water is to be poured in a flask. 6. If dry chlorine gas is passed into the liquid trichloride in a cooled container, the pentachloride is formed. 7. Silver is not attacked by oxygen under ordinary conditions. 8. The use of this gas is to be omitted as it is very harmful. 9. If the boiling point of the solution is to be established, you should carry out this experiment. 10. Many ores which are to be refined often contain considerable quantities of impurities. 11. He is working at a very important experiment, it is to help our researchers to finish their work. 12. The vapor pressure of this unstable phase is greater than that of the stable phase at the same temperature

 

Поставте речення в пасивному стані як у зразку

Model I: They asked him to investigate this method. Hewas asked to investigate this method (by them).

1. They showed us a new laboratory of organic chemistry. 2. I told him the news at once. 3. The teacher gave the students many interesting books. 4. I shall answer all your questions in two days. 5. They will tell her the results when the work is over.

Model II: They sent for the teacher. The teacher was sent for.

1. Everybody spoke about this new method of production.

2. He looked at this modern machine with great interest. 3.We shall send for the doctor if he feels bad. 4. They always listen to him very attentively.

Ex. 2.Перекладіть речення.

 

1. The rate of this reaction can be strongly influenced by high temperature. 2. The changes in these parameters during decomposition were followed by a number of other changes. 3.Common salt was acted upon by sulphuric acid and hydrogen chloride was produced. 4. His work in this field can berelied on. 5. They were told about the new discoveries in oil production. 6. The change in colour was followed by the change of other properties. 7. Fermi is looked upon as an outstanding physicist of our time. 8. The results of their investigation can be referred to. 9. I was asked to attend his lecture on chemistry. 10. Liquid solutions will be dealt with in this chapter. 11. The qualitative examination of this compound is followed by the quantitative one

 

Ex. 3 : Перекладіть речення., звертаючи увагу на слово"much":

1. This experiment is much more tedious and time consum­ing than the first one. 2. That work was much more interest­ing for us though it was more difficult. 3. The solubility of helium is much less than that of nitrogen. 4. It would be noted that as much as 20 per cent of this solvent was used. 5. He worked very much last year and could fulfil as much as 50 per cent of his work. 6. Much attention has been paid to the development of nuclear physics in our country. 7. Much research in the field of atomic structure has been carried out recently. 8. As much as 30 per cent of water was evaporated from this solution upon heating. 9, This new discovery is much spoken about.

 

Ex. 4 Перекладіть речення., звертаючи увагу на слово"mean"

 

1. In mechanics, force does not mean strength. 2. Elec­trolysis is a process by which a chemical reaction is carried out by means of the passage of an electric current. 3. This means that all the atoms of any element have the same properties. 4. It is generally possible by suitable means to separate the constituents of solutions. 5. Dissociation means the separa­tion of a molecule into its original constituent atoms. 6. A number of various complicated problems has been solved by means of computers. 7. At any given temperature the mole­cules of gases have the same mean kinetic energy

 

Домашнє завдання : переказувати текст “Silicates ”

 

 

Тема 19. Кварц у промисловості.

Мета: удосконалювати навички студентів правильно використовувати нову професійну лексику; розвивати логічне мислення; виховувати культуру мовлення. Удосконалення граматичних навичок вживання пасивного стану в часах групи Perfect

Обладнання: малюнки до теми, роздруківки текстів для читання та завдань, словники.

План заняття

І Організаційний момент. Привітання

ІІ. Читання тексту “Silica in industries ” з підручника В.Е. Коваленко «English»

ІІІ. Формування граматичних навичок

The Passive Voice

Present perfect

passive subject 'to be' past participle  
The resolution has been prepared  
The delegates have been elected  

 

Past perfect

passive subject 'to be' past participle  
The coat had been sold by that time

 

Future perfect

passive subject 'to be' past participle  
He will have been examined by next year

EXERCISE 1Turn the following into the Passive Voice

 

1We turn on the light when it is dark. 2. The students finished their translation in time. 3. Helen washed the dishes. 4. Betty often took her younger brother for a walk. 5. Mother has made some coffee. 6. Have you ironed your dress yet? 7. Nina mispronounced this word. 8. They have told her the truth. 9. She promised us an interesting entertainment. 10. One uses chalk for writing on the blackboard. 11. I shall finish my work about seven o'clock. 12. Somebody has opened the door. 1.3. The waitress brought in the coffee. 14. One of my friends took me to the cinema last week. 15. We shall finish this work in time. 16. They built this house in 1960. 17. They were selling new children's books in that shop when I entered it yesterday. 18. Alarge group of young people joined us on our way to the station. 19. Ayoung teacher started a school in this village. 20. They are translating this article now. 21. Galsworthy wrote «The Forsyte Saga.» 21. Thousands of people attended this meeting. 22. He has just interrupted me. 23. The teacher has explained it to us.

 

EXERCISE 2Turn the following into the Passive Voice

 

1. They did not invite her to the party. 2. I did not leave the window open. 3. They did not turn off the light. 4. I have invited some friends to tea 5. She has given me an English book. 6. Have you written the letter yet? 7. They have told us a lot оS interesting things. 8. The students have written the test-paper without mistakes. 9. The children have scattered about a lot of things. 10. The girl has put all the books into the bookcase. 11. Snov, will cover the fields in winter. 12. They will hand in the homework tomorrow. 13. I don't think we shall finish all the preparations today. 14. She al ways invites me to her dinner parties. 15. Shot showed me the dress which her daughter had made.16. We discussed the matter some days ago.17. Someone wants you on the phone. 18. She found my book on the window-sill. 19. They have built excellent shelters for tourists in these mountains. 20. Have you given the exercises to all the students? 21. The boy was angry because his mother did not allow him to go to the stadium. 22. Why have you put my books on this table?

 

EXERCISE 3Turn the following into the Passive Voice

1. We received this letter after his departure. 2. Have dogs ever attacked you? 3. Bees gather honey from flowers. 4. The storm drove the ship against a rock. 5. Who discovered the circulation of blood? 6. They are selling delicious fruit ice cream there now. 7. The old man showed us the way out of the wood. 8. They offered her some interesting work. 9. The doctor prescribed her new medicine. 10. They often speak about him. 11. Everybody laughed at this funny animal. 12. We have been looking for you the whole morning. 13. We shall insist on strict discipline. 14. They teach three foreign languages at this school.

 

EXERCISE 4Turn the following into the Active Voice

1. The light has not yet been turned off. 2. The boy was punished for misbehaving. 3. By three o'clock everything had been prepared. 4. The dictation was written without mistakes. 5. Whom was the poem written by? 6. Her dress was washed and ironed. 7. I was not blamed for the mistakes. 8. The papers had been looked through and corrected by the next lesson. 9. This house was built last year. 10. The letter has just been sent. 11. This article will be translated at the lesson on Tuesday. 12. When will this book be returned to the library? 13. The room was cleaned and aired. 14. Have all these books been read? 15. Whom were these letters written by? 16. The letter has just been typed. 17. She showed me the picture which had been painted by her husband. 18. I shall not be allowed to go there. 19. He has been told everything, so he knows what to do now. 20. All the questions must be answered. 21. The door has been left open. 22. Betty was met at the station. 23. The girl was not allowed to go to the concert.

24. She said that the new time-table had not yet been hung up on the notice-board. 25. The chicken was eaten with appetite. 26. It was so dark, that the houses could not be seen.

 

EXERCISE 5.Open the brackets using the verbs in the Passive Voice.

1. I am sure I (to ask) at the lesson tomorrow. 2. They told me that the new student (to speak) much about. 3. The hostess said that one more guest (to expect). 4. The newspaper said that an interesting exhibition (to open) in the Hermitage the next week. 5. This new dictionary (to sell) everywhere now. 6. All the texts (to look) through yesterday and not a single mistake (to find). 7. Two reports on Hemingway's stories (to make) in our group last month. Both of them were very interesting. 8. He said that Grandmother's letter (to receive) the day before. 9. Two new engineers just (to introduce) to the head of the department. 10. Don't worry, everything will be all right: the children (to take) to the theatre by the teacher and they (to bring) back to school in the evening.

 

Домашнє завдання : вивчити нові слова з тексту “Silica in industries ”

 

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