READING

Match the invention to its inventor.

LEAD-IN

INVENTIONS

UNIT 17

Telephone Morse Code Hot-air balloon Automobile Airplane Diesel engine Helicopter
a b c d e f g
Igor Sikorsky Rudolf Diesel Montgolfier brothers Wright brothers Karl Benz Samuel Morse Alexander Graham Bell

2. What do you think are the most outstanding inventions in human history? Why are they important?

3. Read the text and put the inventions in the chronological order:

- invention of writing;

- the use of fossil fuels as sources of energy, the improvement of metallurgical processes, the development of electricity and electronics, the invention of the internal-combustion engine, and the use of metal and cement in construction work;

- inventive use of stone and metal implements;

- invention of movable type;

- inventive use of metal implements.