Dialogue 2

-As far as you know I'm fond of cars and airplanes.

-To my mind a motor car is the most useful of all leisure inventions. German engineer Karl Benz produced the first petrol driven automobile in 1885. Henry Ford, the famous American manufacturer, was successful in designing and selling cars for everyday life — for business, travelling, family life, leisure time. He was the first to use line production for his Model T car in 1908.

-See, my Dad is also interested in cars and airplanes.There are many books and magazines about these inventions in our family library. I liked most of all the information about the Volkswagen "beetle". It was designed in 1939 in Germany. The car was designed with economy, cheapness
and comfort in mind. Cars have given people great freedom of travelling around.

-You are quite right. But the greatest invention was, in my opinion, the invention of an airplane. Two American brothers Wright invented the airplane. They patented it as a"flying machine". The invention of the petrol engine helped brothers Wright to make the first flight in 1903.

-I'm fond of cycling. I think that bicycle is an outstanding example of a mechanic machine. Its history goes back to 1817. It happened is Germany. Baron fon Drez invented a mechanism on two wheels. It was rather funny. Then inventors designed the bike with a big front wheel to cover a longer distance. Finally in 1885, appeared a modern bicycle with two wheels of the same size.

- Thanks for such an interesting conversation. I must be going.

VIII. Arrange the words in a sentence:

1) Curiosity/leads/great/to/imagination/discoveries/ and.

2) Must/man/apply/skills/knowledge/his/and/experience/discover/secrets/to/

/nature/of.

3) Do/succeed/outstanding/in/people/their/carrying/ on/investigations?

4) Are/all/engaged/why/research/scientists/in/work?

IX. Read the text. Put the verbs in brackets either in the Past Simple Active or the Past Simple Passive.

Carl Gauss (recognize) as a mathematical genius when he was ten. One day a professor (give) him an arithmetic problem. Carl (ask) to add up numbers from 1 to 100 (1+2+3+4, etc.). It (take) him only eight seconds to solve the problem. How could he do it so quickly? Can you do it quickly?

Carl could do it quickly because he (know) that each pair of numbers 1 plus 100, 2 plus 99, 3 plus 98 and so on till 50 plus 51 — equaled 101. So he simply (multiply) 50 by 101 and (come) up with

the answer: 5 050. That's how the problem (solve).

Texts for Supplementary Reading

Sort out the two jokes as quickly as you can. Be ready to retell them to the class.

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