"No, you haven't a drop".
"I haven't any air in my spare tire, either".
"Have you any extra tubes?"
"No, I haven't, but I have a good tube in the spare tire. I had four new tubes when I met a man who was having tire trouble. Ha hadn't an extra tube. I let him have my tubes. I suppose he was not a scientific person either. His car was in a worse condition than mine is".
How did it All Begin?
Do you ever wonder why people do or wear, or say certain things? Why do they shake hands when they meet? Many things you say and do could have reasons that date back thousands of years.
For example, it is very strange to think that shaking hands - a friendly custom (обычай) today - was originally a means of keeping a stranger's ( незнакомец ) weapon hand where it could do no harm.
In primitive times, man never went about without some weapon of defense - usually a club (дубинка). Upon meeting a stranger a man could either stand and fight or turn away before discovering if the stranger was a friend or an enemy, or greet the stranger and possibly become friends.
But how could he be sure the stranger would be friendly and how could the stranger trust in return? There was only one way to show friendly intentions and that was for both men to lay down their weapons and hold out empty hands.. For added insurance, each would reach for the other's right hand. As long as, both men's hands were
safely clasped. neither could harm the other. Therefore, a handshake originally was a means of self-defense.
Упражнение 21. Дайте недостающие формы глагола, запомните их:
teach, fighting, wore, frozen, letting, carried on, laid down.
Упражнение 22. Прочитайте и переведите текст без словаря:
The ancient Greeks are known to have been great watchers of the sky and also great thinkers. As they watched the sky night after night. it was natural for them to think that the Earth stood and the stars, planets, sun and moon were moving round the earth in space. They thought the sun to be between Venus and Mars. To explain the movement of the planets, however, was very difficult. Then one day a young scientist named Copernicus at Krakow University in Poland supposed that the sun and not the Earth should be the centre of everything. He was the first to explain properly our solar system. The ancient Greeks had made the mistake of thinking that because the stars and planets seemed to move as they looked at the sky, the Earth must stand. If you sat in a train and looked out at the trees, it would be easy to understand their mistake. The trees seem to be moving backwards, but really it is the train that is moving forwards.
Conversation
Exercise 1. Answer the questions:
1. What field of science studies the phenomenon of supercon ductivity? (physics).
2. What could a nation have if it is the first to master this new field of science? (prestige, scientific advantage, economic and military benefits).
3. What is superconductivity? (the loss of electrical resistively by a, material on being cooled to temperatures near absolute zero).