英语翻译In the summer of 1978 an English farmer was driving his

英语翻译
In the summer of 1978 an English farmer was driving
his tractor through a field of wheat when he discovered that some of his wheat
was lying flat on the ground.The flattened(变平的) wheat formed a circle abo ut
six meters across.Around this circle were four smaller circles of flattened
wheat.The five circles were in a formation like five dots （点）.During the
following years,farmers in England found the strange circles in their fields
more and more often.
The circles are
called “crop circles” because they appear in the fields of grain—usually wheat
or corn.The grain in the circles lies flat on the ground but is never broken;
it continues to grow,and farmers can later harvest it .Farmers always discover
the crop circles in the morning,so the circles probably form at night.They
appear only in the months from May to September.
At first,
people thought that the circles were a hoax.Probably young people were making
them as a joke ,or farmers were making them to attract tourists .To prove that
the circles were a hoax,people tried to make circles exactly like the ones that
farmers had found.They couldn’t do it .They couldn’t enter a field of grain
without leaving tracks,and they couldn’t flatten the grain without breaking
it.
Many people
believe that beings from outer space are making the circles to
communicate（交流）with us from far away and that the crop circles are messages from
them.
Scientists who
have studied the crop circles suggested several possibilities.Some scientists
say that a downward rush of wind leads to the formation of the circles—the same
downward rush of air that sometimes causes an airplane to crash（坠毁）.Other
scientists say that forces within the earth cause the circles to appear.There
is one problem with all these scientific explanations:crop circles often appear
in formations,like the five—dot formation.It is hard to believe that any
natural force could form those.