Most people rightly consider the submarine to be
a relatively recent invention but the idea of an
underwater vessel actually goes way back to ancient
times and very early naval warfare. A medieval
legend tells of how Alexander the Great used a
submersible mission to spy on his enemies. It cannot
be confirmed whether it was an actual submarine
and it is believed that it was most likely a large sort
of diving bell A __________ . However, it at least
proves that the idea to create a machine in which
man could remain underwater and undetected for
long periods was already in the mind of man.
During the Middle Ages European inventors made
many attempts at developing submarines.
Leonardo da Vinci and other great thinkers
B __________. The first submarine that really
worked was built around 1620 by a Dutchman by
the name of Cornelius Drebbel who was working for
King James I of England. Accounts from the time,
tell of how he made a submerged journey down the
River Thames in an adapted rowing boat. No one
knows how his vessel actually worked and rumours
that King James C __________.
Engineers all over Europe continued experi -
menting D __________ . At the same time, their
military potential became obvious and by 1727
14 types of submarines had been invented in
England alone. In 1776, the American David Bushnell
developed the first military submarine
E __________ . Turtle attempted to sink a British
ship HMS Eagle in New York harbour but failed.
However, during the American Civil War submarines
were to be used more successfully. The French-
designed Alligator was the first US Navy sub to use
compressed air and an air filtration system. It was
also the first submarine to plant electrically
detonated mines on enemy ships. Alligator was
eventually lost in a storm off North Carolina
F __________. In 1897, Irish engineer John Philip
Holland developed the first submarine with the
power to run submerged for any considerable
distance, and the first to combine electric motors
for submerged travel and gasoline engines for use
on the surface. His submarines would be officially
adopted by both the US and British navies and
found the bases of future modern submarine fleets.
made designs of underwater
vehicles
2 with different ways to make a
submarine
3 but the hope of building functional
submarines was far from lost
4 that was used and not an actual
submersible machine
5 in all weather and sea conditions
6 capable of moving under water and
carrying out operations
7 took part in the experiment are most
likely untrue
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Ответы
Ответ дал:
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A 4 that was used and not an actual submersible machine.
B 1 made designs of underwater vehicles.
C 7 took part in the experiment are most likely untrue.
D 2 with different ways to make a submarine.
E 6 capable of moving under water and carrying out operations.
F 3 but the hope of building functional submarines was far from lost.
B 1 made designs of underwater vehicles.
C 7 took part in the experiment are most likely untrue.
D 2 with different ways to make a submarine.
E 6 capable of moving under water and carrying out operations.
F 3 but the hope of building functional submarines was far from lost.
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