11. Напишите 5 основных положенийтлашего доклада по теме “Pollution of the Atmosphere”.
Оценка результатов тестовы&заданий /Т3/.
ТЗ 1. Отличный результат — 10 правильно сформулированных предложений за 2 мин., т.е. 10 баллов. Первое правильно сформулированное предложение оценивается в 1 балл.
ТЗ 2-10. Отличныйрезультат - 9 правильных ответов за 9 минут. Один правильный ответ оценивается в один балл.
Т311. Отличный результат - 5 грамматически и логически правилЭДо сформулированных предложений за 5 минут. Каждое предложение оценивается в 1 балл.
Unit 2.
Fundamentals.
Section 1.
Тема: “Природаэлектричества”.
Грамматический материал: единственное и множественное число.
Basic Topical Text.
Nature of Electricity.
A: When was the first recorded observation on electricity made?
B: As much as I know it was made by the Greek philisopher Thales.
■ A: What did he state, I wonder?
B: Don’t you know? He stated that & piece of amber rubbed with fur attracted light objects such as feathers & bits of straw. Did he make any experiments?
A: No, as far as it is'known Thales liked to speculate but he did not experiment systematically. 22 centuries elapsed before there 'was any progress.
B: Oh, it was just about the time that Galileo discovered the laws of the pendulum & accelerated bodies. So it was at the time when the study of magnetism & of electrical phenomena began.
A: How was it found that some substances could be “electrified”?
B: It is a well-known fact that having been rubbed many substances behave like amber does.
A: Can only similar substances become electrified or acquire electrical charges, being touched together & then separated?
B: No. Later on it was discovered that any two dissimilar substances could be electrified. As a matter of fact rubbing is not essential. It merely forces the two substances into close contact.
A: When was the modern concern of the nature of electricity arrived at?
B: During the past century the idea of the nature of electricity was completely revolutionized.
A: Yes, I know it quite well. Hitherto, the atom ’has been regarded as the ultimate subdivision of matter. Today the atom is regarded as an electrical system.
B: Oh, now I want to examine you a little. What do you know about the nucleus, the proton & the electron?
A: I don’t mind. In the electrical system there is a nucleus containing positively charged particles. These particles are called protons. The nucleus is surrounded by lighter negatively charged units - electrons. So, the most essential constituent of matter is made up of electrically charged particles.
