Асбест і тальк.

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 “Asbestosandtalk ” з підручника В.Е. Коваленко «English»

ІІІ Удосконаленняграматичних навичок

Відкрийте дужки. Перекладіть речення.

1.Atoms are not (smaller, the smallest) particles, but they are very small. 2. This discovery is (more important, the most important) than the previous one. 3. It is much (easier, the easiest) to make parts of plastics than of metal or wood. 4. This is (better, the best) laboratory in our Institute. 5. Aluminium is (lighter, the lightest) known metal. 6. Hydrogen is (lighter, the lightest) of the elements. 7. Beryllium is (less, the least) active member of the group, and there is a regular increase in activity from metal to metal in the order of increased atomic numbers. 8 (More, the most) characteristic chemical property of hydrogen peroxide is its great oxidizing power.

Ex. 1 Перекладіть речення.

1.Electrons have been spoken of as moving in orbits about the atomic nucleus. 2. This law is generally spoken of as the Second Law of Thermodynamics. 3. It had already been mentioned that many of the elementary gases couid exist in diatomic molecules. 4. In general the oxidation number may be thought of as an electrical charge of the atom. 5. The results of our work will be discussed at the conference. 6. A base is referred to as a substance that accepts protons from another substance. 7. It has been noted that chlorine dioxide reacts with water. 8. The sodium salt is being manufactured in industrial quantities. 9. This method is being used in our laboratory. 10.' The Institute was being built when we came to this town

Ex. 2 Перекладіть речення.

An atom is the smallest possible particle of any substance. Before, atoms were looked at as the smallest particles that can exist. But now it has been proved that atoms have a complicated internal structure which is composed of particles which are much smaller still. When we say that an atom is the smallest particle of any substance, we mean that atom is the basic unit of a substance.

Ex. 3 Перекладіть речення.

1. In the dye solution most dyes go into colloidal suspen­sion. 2. In most carbon compounds only one valence bond is held between adjacent carbon atoms. 3. The discovery of steel was one of the most important inventions of man, for it gave him one of the hardest materials. 4. In the atmosphere oxygen is for the most part uncombined. 5. Most of the interior of an atom can be considered as an empty space, similar to that between the planets. 6. Many ions, probably most of them, are hydrated in aqueous solution. 7. The most convenient method was that used by our scientists. 8. The most extensive use of ammonium sulphate is in plant fertilizers. 9. Most of our students take an active part in the preparation for this conference. 10. Unlike most salts the solubility of anhydrous salt decreases with the rise in temperature.

Ex. 4 Прочитайте текст передайте його основний зміст