A. Whom was an automobile invented by?

B. An automobile was invented by Benz.

A. When was it constructed?

B. The first automobile was constructed in 1855.

A. What country was it built in?

B. It was built in Germany.

Dialogue 2

A. What is known as a diode?

B. The simplest tube with two elements is known as a diode.

A. How are these elements called?

B. They are named a cathode and an anode.

A. Where are diodes used?

B. The diodes are used as detectors, as rectifiers and as switching devices.

Dialogue 3

A. Can you tell how many generations of computers are known today?

B. Certainly, I can. Five generations are known today.

A. Do you know what tubes were used in the first generation?

B. Let me think... It was based on vacuum tubes. Am I right?

1. Certainly, you are.

Dialogue 4

A. What generations of computers are widely used now?

B. Don't you know it? The fourth generation is used now!

A. What are they built on?

B. They are constructed on integrated circuits and chips.

A. It's very interesting. Tell me, please, what are computers used for?

2. They are used for solving complex problems.

Dialogue 5

1. Have you ever heard of physics of high energies?

2. Certainly, I have. The particles of nuclei are being studied by it.

1. What name has been given to these particles?

2. They have been named high energy particles.

A. Can you tell me about this discovery?

B. With pleasure! The discovery has been made possible due to a new experi­mental technology.

Dialogue 6

A. What is going on in our laboratory?

B. I think a new experiment is being carried out there.

A. Whom is it being made by?

B. I'm afraid I've forgotten his name.

A. Let me think... Oh, it's professor Glushkov!

B. Right you are! His name has been known since 1980.

J u s t f o r F u n

1. Read this story and try to answer the questions after it.

The Scientists and the Watches

One night, a crazy scientist got involved in a rather silly argument with a fellow scientist. They were arguing about whose watch was the better, the Swiss one or the Japanese one. Being scientists, they decided to do an experiment to test the watches. The first part of the test was to see if both were waterproof. (They were both so convinced of the quality of their watches that they were willing to risk ruining them.)

They went into their laboratory looking very serious. They filled the sink with water, put the watches in, waited impatiently for ten minutes and took them out.

They could see there was some­thing wrong with both watches, but being cautious men of science they observed them for a couple of hours before speaking to each other. The tension was unbearable. They silently realized that the Swiss watch was losing sixty minutes an hour and the Japanese one was 120 minutes slow.

The scientist with the Japanese watch then slowly raised his head and said, "Both watches are now defective but my watch is right more often than yours, so it's better." The scientist with the Swiss watch left the room without saying a word.

Was the man with the Japanese watch right? If so, how?

1. What were they arguing about at the beginning of the story?

2. Why couldn't they go on with the experiment after they took the watches out of the water?

3. What did they do for a couple of hours?

4. What did they realise the Swiss watch was doing?

5. If the Swiss watch was losing sixty minutes in sixty minutes, was it

a. going forwards?.

b. stopped?

c. going backwards?

6. So how often in every 12-hour periods would the Swiss watch show the right time?

a. Once.

b. Twice.

7. How many minutes was the Japanese watch losing every hour?

8. If a watch loses 120 minutes every sixty minutes, is it

a. going forwards?

b. stopped?

c. going backwards?

9. How often in every 12-hour period will the Japanese watch show the correct time?

a. Once.

b. Twice.

10. Was the scientist right when he said, "But my watch is right more often than yours"?

11. Why is this absurd?

From "Challenge to Think"

2. Word Bingo.

Note! Bingo is a popular gambling game played with cards on which numbered

squares are covered as the numbers are called at random.

Look at the list of words given below. Write down any 5 words. The teacher is going to read the definitions of all the words in random order. If you hear the definition of one of the words you have chosen cross it out. The first student to cross all the words he or she has chosen calls out "Bingo" and reads the words to prove his claim:

foot, language, examination, physics, explanation, mathe­matics, traffic, invention, history, nature, achievement, time, steam, coal, tunnel, sandwich, experience, experiment, speed, ac­cident, clay, science, discovery, railway, problem.

3. Solve crossword puzzles.

a)

	1/3					2
			4
	5
	6
	7
8
9

1. A statement saying that something is true.

2. Very high quality.

3. A person who tells some­body what should be done.

4. A part of anything.

5. Not to pay attention to something.

6. An institution for edu­cating children.

7. Wanting to know or learn about something.

8. We are very tired because our... was very hard.

9. Don't speak so quickly, I don't... you.

b)

1
2
3
4
5
6
7
8
9
10

1. An American physicist, born in Germany, who studied the behaviour of atoms and formed the theory of relativity.

2. A photocopy made on a special electric copying machine.

3. A person who studies or works in physics.

4. An American inventor whose inventions include the phonograph, electric lighting, and automatic telegraphy.

5. A radioactive element discovered by Marie Curie.

6. A person who invents something new.

7. 1,000,000

8. Sherlock Holmes often used the phrase: “_____, my dear Watson”.

9. A famous scientist who discovered the law of gravity.

10. To study or examine by means of a test.