短文填词
How far is the sun from the earth? This is really a question
________(引起兴趣) scientists of all times.
But they had no way of getting an exact answer.Now with
the use of radio telescope, they are a________to give a correct
answer:the sun is 92,956,000 miles________from
the earth.The airplane today travels at a speed of 700 miles
an hour.S________that you were flying to the
sun________this airplane.You could make no stops
for rest, nor for gas or________(油), because there
would be no place for you to stop.You would fly day and
________at such a speed.Yet by the time you arrived,
fifteen years would have passed.The________(电的)
train can travel as fast as 110 miles an hour.If a railway could be
b________on a sunbeam, it could take the train nearly
100 years to r________the sun.You would get very,
very tired even if you lived to finish the journey.