Food Industry. Машутина Е.А. - 7 стр.

      2.8 Find in the text all new words and translate sentences they are in

      2.9 Give the Russian for

1 the amount of seed
2 excessive preparations
3 cornfields
4 garden curiosity
5 precarious balance
6 first dawn of civilization

      2.10 Make up a plan of this text and retell according to it

3 Text 2 Before Man, There Was Yeast
       Yeast, a unicellular fungus, has an unestablished beginning dating back
millions of years before the evolution of man. It is reputed that the ancient
chaldeans were the first to make an yeast – leavened bread some 2,300 years ago.
From them, the art of making leavened bread was spread among the Egyptians,
Greeks and Romans, who with their conquering armies, widely distributed this
new found art. From this early beginning, and through the next several thousand
years, the art of making leavened bread advanced and spread throughout the world.
However, the very thing which made the bread possible, yeast or leaven as it was
called, was not recognized or understood until just a little more than 300 years ago.
       The perfection of the microscope in the year 1590 opened the door to
scientists, who were now able to study the world of micro-organisms.
       Advances in yeast technology began in 1680 when Leenwenhock first
observed the microscopic yeast cell. It wasn’t until some 180 years later, however,
that Pasteur established that fermentation is correlative with the life of yeast cells,
and a solid foundation for the understanding of fermentation was finally laid.
       Continued research by Hansen in isolating and culturing pure yeast strains
enabled the identification and classification of yeasts. With advanced
understanding, strains could then be carefully selected and cultured for optimum
performance in any given system or process.

      3.1 Words to remember

1   unicellular – одноклеточный
2   fungus – гриб, грибок, плесень
3   to repute – считать, полагать
4   chaldean – халдей, астролог
5   yeast-leavened bread – хлеб из дрожжевого теста
6   correlative – соответствующий, сходный
7   solid – твердый
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