Английский язык. Болсуновская Л.М - 58 стр.

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METALS IN PERSPECTIVE
Modern civilization is based on metals and millions of tons are extracted
from the surface of the Earth every year. The place of metals in the modern
world is supreme in importance. About three-quarters of all known chemical
elements are metals.
Since the Stone Age, man has found many materials he could work with.
However, the materials that helped him most to develop were the metals. In
many regions of the Ancient World man used Jumps of native metals he could
pick from the surface of the ground: gold nuggets, lumps of native copper and
silver.
Archaeologists have found evidence of early metal-work dating as far
back as 10,000 ВС. Such finds were made in the Middle East, where deposits
of copper were most plentiful. This does not mean that this metal was easy to
find, but that there were more deposits in the Middle East than other parts of
the world.
Copper seems to be the first metal which began to oust stone. The
need for copper was great indeed. The advantages that copper had before
stone as a material for weapons, tools, were obvious. The metal occurred
naturally in the pure (free) state and had many good things about it: it
could readily be worked to any shape, flattened, pointed and holed. At first,
man made it into small things such as arrowheads. Before long, however, man
noticed that when hammered copper becomes harder and stronger, but if it is
held over a fire - soft, malleable, easy to work.
Gold is the most malleable of all the metals. It is much softer than copper
and not very strong. But gold has been valued for thousands of years for its
beautiful luster and scarcity.
1) Подберите русские и английские слова.
1. modern
2. supreme
3. hard
4. pure
5. weapon
а) оружие
b) совеременный
c) чистый, без примисей
d) тяжелый, сложный
e) верхний, высший
2) Найдите в каждом ряду слово, противоположное по значению
первому слову ряда.
1. supreme a) high, b) extreme, c) greatest, d) lowest
2. develop a) evolve, b) reveal, c) decrease, d) increase

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